Owner's Manual for LENNOX models including: 100090 Mini-Split Multi-Position Air Handler, 100090, Mini-Split Multi-Position Air Handler, Multi-Position Air Handler, Air Handler
15 juin 2023 — Do not use any sources of ignition while servicing the refrigeration system. ... instructions for removing and evacuating refrigerant. 1. Remove refrigerant.
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DocumentDocumentMINI-SPLIT SYSTEMS SERVICE MANUAL Indoor and Outdoor Unit Information 100090 5/2023 Mini-Split Multi-Position Indoor Air Handler (MMA) MLB & MPC Outdoor Units Table of Contents 1. Safety Precautions........................................................................ . 3 1.1. Refrigerant Presence...................................................................3 1.2. Fire Extinguisher..........................................................................3 1.3. No Ignition Sources .....................................................................3 3. 1.4. Ventilated Workspace ..................................................................4 1.5. Check Refrigeration Equipment...................................................4 1.6. Check Electrical Devices .............................................................4 1.7. Repair Seal Components ............................................................4 1.8. Repair to Intrinsically Safe Components .....................................4 1.9. Check Cabling .............................................................................4 1.10. Flammable Refrigerant Detection ................................................5 1.11. Remove/Evacuation of Refrigerant..............................................5 1.12. Charging Procedures...................................................................5 4. 1.13. Decommissioning .......................................................................6 1.14. Labeling ......................................................................................6 1.15. Recovery .....................................................................................6 Indoor Unit Information.......................................... 7 2. MMA (Mini-Split Multi-Position Air Handler) ............................. 7 2.1. Model Number Identification........................................................7 5. 2.2. Indoor Unit Specifications............................................................7 2.4. MMA Indoor Unit Dimensions ......................................................9 2.5. MMA Indoor Unit Clearances.....................................................10 2.6. Indoor Unit Blower Data ............................................................11 Noise Criterion Curves ............................................................. 15 3.1. Indoor and Outdoor Power and Communication Wiring Requirements ...........................................................................17 3.2. Overview....................................................................................17 3.3. Indoor/Outdoor Unit Match-Ups.................................................18 3.4. Controller Compatibility .............................................................18 3.5. Electrical Wiring Diagrams ........................................................19 3.6. Wiring Guide..............................................................................20 3.7. Terminal Connections ................................................................22 Connection to Centralized Controller, ON/OFF and Alarm Devices .......................................................................................... 24 4.1. Centralized Controller................................................................24 4.2. ON/OFF Devices .......................................................................24 4.3. Alarm Devices ...........................................................................25 4.4. Micro-Switch Introduce ..............................................................25 4.5. Dial Codes .................................................................................26 Connecting Cables.................................................................... 29 1 Outdoor Unit Information...................................... 30 6. Single and Multi-Zone Outdoor Units...................................... 30 6.1. Model Number Identification......................................................30 6.2. Outdoor Unit Specifications .......................................................32 6.3. Single-Zone Outdoor Unit Dimensions ......................................39 6.4. Multi-Zone Outdoor Unit Dimensions ........................................40 6.5. Outdoor Unit Clearances - Single Units.....................................41 6.6. Outdoor Unit Clearances - Multiple Units ..................................42 7. MLB and MPC Multi-Zone System Combinations.................. 43 8. Refrigeration Pipe Work ........................................................... 49 8.1. MPC Single-Zone Refrigerant Cycle Diagram ...........................49 8.2. MPC Two-Zone Refrigerant Cycle Diagram ..............................49 8.3. MPC Three-Zone Refrigerant Cycle Diagram............................50 8.4. MPC Four-Zone Refrigerant Cycle Diagram .............................50 8.5. MPC Five-Zone Refrigerant Cycle Diagram ..............................51 8.6. Single-Zone Piping Limitations ..................................................52 8.7. Multi-Zone Piping Limitations ....................................................52 9. Master Valves (3 to 5 Zone Outdoor Units)............................. 54 10. MLB and MPC Multi-Zone Outdoor Unit Connections and Line Set Usage................................................................................... 54 11. Power and Communication Wiring for Systems ................... 62 12. Outdoor Unit Condensate Piping ............................................ 63 13. MPC Condensate Pump Diagrams .......................................... 64 14. Installation Requirements ........................................................ 65 14.1. Torque Requirements ................................................................65 14.2. Pipe Length and Elevation.........................................................65 15. Electronic Function................................................................... 69 15.1. Abbreviations.............................................................................69 15.2. Electric Control Working Environment. ......................................70 16. Start-Up...................................................................................... 70 16.1. Adding Refrigerant - Single-Zone Systems ...............................70 16.2. Adding Refrigerant - Multi-Zone Systems..................................70 17. Single and Multi-Zone Outdoor Control Connections........... 71 18. Specifications and Operations ................................................ 76 19. Pressure on Service Port ......................................................... 77 19.1. Cooling Charts...........................................................................77 19.2. Heating Chart ............................................................................77 19.3. Capacity Request Calculations..................................................78 19.4. Heating Mode ............................................................................79 19.5. Defrost Control ..........................................................................81 19.6. Defrost Theory ...........................................................................81 19.7. Defrost Termination....................................................................81 19.8. Outdoor Fan Control..................................................................82 19.9. Four-Way Valve Control.............................................................83 19.10. Electronic Expansion Valve (EXV) Control ................................83 20. Error Codes .............................................................................. 84 2 WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Installation and service must be performed by a qualified installer or service agency. WARNING Electric shock hazard. Can cause injury or death. Before attempting to perform any service or maintenance, turn the electrical power to unit OFF at disconnect switch(es). Unit may have multiple power supplies. WARNING To prevent serious injury or death: 1- Lock-out/tag-out before performing maintenance. 2- If system power is required (e.g., smoke detector maintenance), disable power to blower, remove fan belt where applicable, and ensure all controllers and thermostats are set to the "OFF" position before performing maintenance. 3- Always keep hands, hair, clothing, jewelry, tools, etc., away from moving parts. CAUTION As with any mechanical equipment, contact with sharp sheet metal edges can result in personal injury. Take care while handling this equipment and wear gloves and protective clothing. 1. Safety Precautions Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure the risk of ignition is minimized. · Work in a controlled environment to minimize the risk of a flammable gas or vapor being present. · All maintenance staff and others working in the local area must be informed on the nature of work being completed · Avoid working in confined spaces. · Section off the area around the work space. · Ensure the conditions within the area have no flammable materials. 1.1. Refrigerant Presence · Use a refrigerant detector to verify the work area does not have flammable substances · Ensure the leak detection equipment is suitable for use with flammable refrigerants (i.e. no sparking, adequately sealed or intrinsically safe) 1.2. Fire Extinguisher If any hot work is required on the refrigeration equipment or any associated parts, appropriate fire extinguishing equipment must be immediately available (such as a dry powder or CO2 fire extinguisher adjacent to the charging area). 1.3. No Ignition Sources WARNING Do not use any sources of ignition while servicing the refrigeration system. Pipe work that contains or has contained flammable refrigerant could lead to risk of fire or explosion if exposed to sources of ignition. · Prior to servicing the unit, survey the area around the equipment to ensure there are no flammable hazards or ignition risks. · Keep all possible ignition sources (including cigarette smoking) away from the site during installation, repair, or removal and disposal of refrigerant. 3 1.4. Ventilated Workspace 1.7. Repair Seal Components Ensure the work area is adequately ventilated before breaking into the system or conducting any hot work. Maintain ventilation until service is complete. The ventilation should safely disperse any released refrigerant and expel it externally into the atmosphere. 1.5. Check Refrigeration Equipment If changing electrical components, verify the components are a correct fit and appropriately serves the purpose. Verify the following points when executing installations that require flammable refrigerants. · The charge size is in accordance with the room size within which the refrigerant containing parts are installed · The ventilation machinery and outlets are operating adequately and are not obstructed · If an indirect refrigerating circuit is being used, the secondary circuit must be checked for the presence of refrigerant marking to the equipment continues to be visible and legible. · Correct any illegible markings and signs · Refrigeration pipe or components are installed in a position where they are unlikely to be exposed to any substance that may corrode refrigerant containing components, unless the components are constructed of materials that are inherently resistant to corrosion 1.6. Check Electrical Devices Repair and maintenance to electrical components must include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, do not connect any electrical supply to the circuit until the issue is resolved. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution can be used. Report the temporary solution to the owner of the equipment so all parties are advised. Initial safety checks include: · Capacitors are discharged; use caution to avoid the possibility of sparking · No live electrical components and wiring are exposed while charging, recovering, or purging the system · Continuity of earth bonding During repairs to sealed components, all electrical supplies must be disconnected from the equipment being serviced prior to any removal of sealed covers, etc. If it is absolutely necessary to have an electrical supply to equipment during servicing, then a permanently operating form of leak detection must be located at the most critical point to warn of a potentially hazardous situation. Pay close attention to the following to ensure safety when servicing electrical components: · Casing is not altered in such a way that negatively affects the level of protection (damage to cables, excessive number of connections, terminals not made to original specification, damage to seals,incorrect fitting of glands, etc.) · Ensure the apparatus is mounted securely · Ensure that seals or sealing materials have not degraded or no longer can prevent the ingress of flammable atmospheres. Replacement parts must be in accordance with the manufacturer's specifications. NOTE: The use of silicon sealant may inhibit the effectiveness of some types of leak detection equipment. Intrinsically safe components do not have to be isolated prior to servicing them. 1.8. Repair to Intrinsically Safe Components When repairing intrinsically safe components: · Do not apply any permanent inductive or capacitance loads to the circuit without ensuring it will not exceed the permissible voltage and current permitted for the equipment in use. · Intrinsically safe components are the only types of components that can be serviced while live in the presence of a flammable atmosphere. · The test apparatus must be at the correct rating. · Replace components only with parts specified by the manufacturer. Other parts may result in the ignition of refrigerant in the atmosphere from a leak. 1.9. Check Cabling When conducting the safety check, consider the effects of aging or continual vibration from sources such as compressors or fans. Verify cabling is not positioned in an environment that will make it vulnerable to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. 4 1.10. Flammable Refrigerant Detection CAUTION Do not use potential sources of ignition when detecting refrigerant leaks. Do not use a halide torch or any other detector that employs a naked flame The following leak detection methods are deemed acceptable for systems containing flammable refrigerants. · Use electronic leak detectors to detect flammable refrigerants NOTE: The sensitivity of electronic leak detectors may not be adequate or may need re-calibration. Detection equipment must be calibrated in a refrigerant-free area. Ensure the detector is not a potential source of ignition and is suitable for the refrigerant used. Leak detection equipment must be set at a percentage of the LFL of the refrigerant and must be calibrated to the refrigerant in use and the appropriate percentage of gas (25 % maximum) is confirmed. Leak detection fluids are suitable for use with most refrigerants, but the use of detergents containing chlorine must be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work. · Remove or extinguish all naked flames if a leak is suspected · If a leakage of refrigerant is found and requires brazing, all refrigerant must be recovered from the system or isolated (by means of shut off valves) in a part of the system that is remote from the leak. Oxygen-free nitrogen (OFN) must then be purged through the system both before and during the brazing process. 1.11. Remove/Evacuation of Refrigerant Use conventional procedures when breaking into the refrigerant circuit to make repairs or for any servicing purpose. It is important to follow best practices since flammability is a possibility. The following are high level instructions for removing and evacuating refrigerant. 1. Remove refrigerant 2. Purge the circuit with inert gas 3. Evacuate 4. Purge again with inert gas 5. Open the circuit by cutting or brazing Refrigerant Removal or Evacuation Tips · The refrigerant charge must be recovered into the correct recovery cylinders. · The system must be flushed with OFN to render the unit safe. This process may need to be repeated several times. · Do not use compressed air or oxygen for this task. · Flushing is achieved by breaking the vacuum in the system with OFN and continuing to fill until the working pressure is met, then vented to the atmosphere, and pulling down to a vacuum. This process must be repeated until no refrigerant is within the system. · The system must be vented down to atmospheric pressure in order to service the unit after the final OFN charge is used. This operation is absolutely vital if brazing operations on the pipe-work is planned. · Verify the outlet for the vacuum pump is not close to any ignition sources and there is ventilation available. 1.12. Charging Procedures In addition to conventional charging procedures, the following requirements must be met: · Ensure that contamination of different refrigerants does not occur when using charging equipment. · Hoses or lines must be as short as possible to minimize the amount of refrigerant contained in them. · Cylinders must be kept upright. · Ensure that the refrigeration system is grounded prior to charging the system with refrigerant. · Label the system when charging is complete (if not already). · Extreme care shall be taken not to overfill the refrigeration system. · Prior to recharging the system it must be pressure tested with OFN. The system must be leak tested on completion of charging, but prior to commissioning. A follow-up leak test must be executed prior to leaving the site. 5 1.13. Decommissioning 1.15. Recovery Before executing this procedure, it is essential that the technician is completely familiar with the equipment and all its components. Take an oil and refrigerant sample before beginning task and isolate the system electrically.. In case analysis is required prior to re-use of reclaimed refrigerant. It is essential that electrical power is available before the task is commenced. Prior to decommissioning: · Verify mechanical handling equipment is available, if required, for handling refrigerant cylinders · Verify all personal protective equipment is available and being used correctly · Verify the recovery process is supervised at all times by competent person · Verify the recovery equipment and cylinders conform to the appropriate standards · Pump down refrigerant system, if possible. If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system. · Verify the cylinder is situated on the scales before recovery takes place. · Start the recovery machine and operate in accordance with manufacturer's instructions. · Do not overfill cylinders. (No more than 80 % volume liquid charge). · Do not exceed the maximum working pressure of the cylinder, even temporarily. NOTE: When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off. · Do not charge another refrigeration system with the recovered refrigerant unless it has been cleaned and checked. 1.14. Labeling To ensure decommissioned equipment is appropriately identified: · Equipment must be labeled as "Decommissioned and emptied of refrigerant." · The label must be dated and signed. · Verify equipment has labeling that states the equipment once contained flammable refrigerant. When removing refrigerant from a system (either for servicing or decommissioning), use best practices and caution to ensure refrigerant is removed safely. When transferring refrigerant into cylinders: · Only use appropriate refrigerant recovery cylinders · Ensure that the correct numbers of cylinders for holding the total system charge are available · All cylinders to be used are designated for the recovered refrigerant and labeled for that refrigerant (i.e. special cylinders for the recovery of refrigerant) · Cylinders must be complete with pressure relief valve and associated shut-off valves in good working order · Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs. Recovery Equipment The recovery equipment must be in good working order (with a equipment instructions nearby) and suitable for the recovery of flammable refrigerants. In addition, a set of calibrated weighing scales must be available and in good working order. Hoses Hoses must have leak-free disconnect couplings and in good condition. Before using the recovery machine, check that it is in satisfactory working order, has been properly maintained, and any associated electrical components are sealed to prevent ignition in the event of a refrigerant release. Consult manufacturer if in doubt. Handling Recovered Refrigerant The recovered refrigerant must be returned to the refrigerant supplier in the correct recovery cylinder, and the relevant Waste Transfer Note arranged. Do not mix refrigerants in recovery units and especially not in cylinders. Compressor Oils If compressor oils are removed, ensure the oils have been evacuated to an acceptable level to make certain that flammable refrigerant does not remain within the lubricant. The evacuation process must be executed prior to returning the compressor to the suppliers. Only electric heating to the compressor body should be used to accelerate this process. When oil is drained from a system, it must be carried out safely. 6 Indoor Unit Information 2. MMA (Mini-Split Multi-Position Air Handler) 2.1. Model Number Identification Series Type M = Mini-Split M M A 036 S 4 - 1 P Voltage P = 208/230V-1 phase-60hz Unit Configuration M = Multi-Position Unit Type A = Air Handler Minor Design Sequence 1 = 1st Revision Refrigerant Type 4 = HFC-410A Nominal Cooling Capacity 018 = 1.5 tons (single/multi-zone) 024 = 2 tons (single/multi-zone) 036 = 3 tons (single zone) 048 = 4 tons (single zone) 060 = 5 tons (single zone) Unit Type SM = Single/Multi-Zone S = Single Zone 2.2. Indoor Unit Specifications S IN G LE ZON E & MULTI- ZONE 1.5 - 5 TON Model No. MMA018SM4 MMA024SM4 MMA036S4 MMA048S4 MMA060S4 Nominal Tons 1.5 2 3 4 5 Power Supply - 60 Hz - 1 phase 208/230V 208/230V 208/230V 208/230V 208/230V 1 Maximum overcurrent protection (MOCP) (unit only) 15 15 15 15 15 2 Minimum circuit ampacity (MCA) (unit only) 3 4 5 7.5 9 Room Temperature Range Cooling 60°F - 90°F 60°F - 90°F 60°F - 90°F 60°F - 90°F 60°F - 90°F (15°C - 32°C) (15°C - 32°C) (15°C - 32°C) (15°C - 32°C) (15°C - 32°C) Heating 0°F - 30°F 0°F - 30°F 0°F - 30°F 0°F - 30°F 0°F - 30°F (-17°C to -1°C) (-17°C to -1°C) (-17°C to -1°C) (-17°C to -1°C) (-17°C to -1°C) Air Volume - cfm (High/Medium/Low) 576/529/489 759/694/629 1082/971/865 1282/1094/906 1582/1359/1135 External Static Pressure (in. w.g) 0 - 0.8 0 - 0.8 0 - 0.8 0 - 0.8 0 - 0.8 Sound Data (dBA) - Low/Medium/High 39/37/35 41/39/38 46/42/39.5 53.5/47/43.5 50/47/45 Piping Connections - Liquid/Gas line (o.d.) - in. flare 1/4 / 1/2 3/8 / 5/8 3/8 / 5/8 3/8 / 5/8 3/8 / 7/8 Drain connection o.d. - in. fpt 3/4 3/4 3/4 3/4 3/4 3 Filters Size of filter - in. 16 x 20 x 1 16 x 20 x 1 19-1/2 x 20 x 1 23 x 20 x 1 Shipping weights - lbs. 128 128 153 156 190 Optional Electric Heat Electric Heat - See Electric Heat Data Tables on page 8. Electric Heat Net weights - lbs. 11 13 13 15 16 7 ELECTRIC HEAT DATA Indoor Model Usage Electric Heat Size and Model Number Volt Input kW 1 Btuh 2 Minimum Circuit Ampacity (MCA) Ckt 1 Ckt 2 3 Maximum Overcurrent Protection (MOCP) Ckt 1 Ckt 2 018, 5 kW 024, 036 018, 8 kW 024, 036, 048 018, 10 kW 024, 036, 048, 060 24Z26 208 220 230 240 24Z27 208 220 230 240 24Z28 208 220 230 240 3.8 12,800 4.2 4.6 14,300 15,700 23 / 27 - - - 25 / 30 - - - 5.0 17,100 6.0 20,500 6.7 22,900 37 / 42 - - - 40 / 45 - - - 7.3 25,100 8.0 27,300 7.5 25.600 8.4 38.700 9.2 31.400 46 / 53 - - - 50 / 60 - - - 10.0 34.100 024, 15 kW 036, 048, 060 24Z29 208 220 230 240 11.3 38,400 12.6 43,000 23 / 27 46 / 53 25 / 30 13.5 47,000 15.0 51,200 036, 20 kW 048, 060 24Z30 208 220 230 15.0 51,200 16.8 57,300 46 / 53 46 / 53 50 / 60 18.4 62,700 240 20.0 68,200 NOTE - Circuit 1 Minimum Circuit Ampacity includes the Blower Motor Full Load Amps. 1 Electric heater capacity only - does not include additional blower motor heat capacity. 2 Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F. 3 HACR type breaker or fuse. 50 / 60 50 / 60 8 2.4. MMA Indoor Unit Dimensions 1 (25) 1 (25) 1 (25) C 10-1/4 SUPPLY AIR (200) OPENING LOW VOLTAGE INLETS (Top and Left Sides) LINE VOLTAGE INLETS (Top and Right Sides) 2-7/8 (73) 2-3/16 (56) SUCTION LINE LIQUID LINE 10-3/4 (273) CONDENSATE DRAINS (2) (Horizontal) CONDENSATE DRAINS (2) (Upflow and Horizontal) 3-7/8 (98) 1-5/8 (41) PIPING PLATE DETAIL TOP VIEW B 5/16 (8) CIRCUIT BREAKER COVER AIR FLOW A SUCTION LINE PIPING PLATE FILTER ACCESS LIQUID LINE FRONT VIEW E E F D RETURN AIR OPENING 18-3/4 476 21 (533) LINE VOLTAGE INLETS (Top and Right Sides) RIGHT SIDE VIEW G BOTTOM VIEW NOTE: Figure 1. Mini-Split Dimensions Unit is shipped configured for horizontal left-hand air discharge. Unit may be converted to horizontal right-hand air discharge by repositioning horizontal drain pan. Dimensions remain the same in all configurations. Model No. A B C D E F G 018 / 024 in. 45 17-1/2 15-5/8 15-1/8 1-1/4 1-1/2 5/8 mm 1143 445 397 384 32 38 16 036 / 048 in. mm 49 1245 21-1/4 540 19-1/8 486 18-5/8 473 1-1/4 32 1-5/8 41 5/8 16 060 in. 53 24-1/2 22-5/8 22-1/8 1-1/8 1-5/8 3/4 mm 1346 622 575 562 28 41 19 9 2.5. MMA Indoor Unit Clearances Non-Ducted Return Closet Installation The air handler can be installed in a closet with a false bottom to form a return air plenum. It may also be installed with a return air plenum under the air handler. Louvers or return air grilles are field-supplied. Local codes may limit application of systems without a ducted return to single-story buildings. Minimum Open Area for Louvers When an air handler unit is installed in a closet with a louvered return opening, use the following table to determine the minimum open area for the louvers: Model 018, 024 036 048 - 060 Minimum Open Area 320 square inches 360 square inches 450 square inches Vertical Installation (Ducted) When installed vertically (upward or downward), the lower end of the air outlet must be connected to the L-shaped metal air duct and fastened by screws. Or If the free area is not known, assume a 25% free area for wood or a 75% free area for metal louvers or grilles. Using the louver dimensions and the 25% or 75% assumption, determine if the open area meets the minimum open area listed above. Figure 3. Air Handler (Shown in Vertical Installation with L-Shape Duct) Minimum Clearance of 1 inch (25.4 mm) on all sides 4.9 ft (1.5m) Flexible Duct Colllar Figure 2. Plenum Clearance (Horizontal Installation) If a return air plenum is used, the return air grille should be immediately in front of the opening in the plenum to allow for the free flow of return air. When not installed in front of the opening, there must be adequate clearance around the air handler to allow for the free flow of return air. Plenum Clearance The outlet side pipe length is 4.9 ft (1.5m) There should be a clearance of 1 in. (25.4mm) on all sides of the plenum. 10 2.6. Indoor Unit Blower Data 2.6.1. MMA018 Air flow rate(CFM) 18K 800 700 600 500 400 300 200 100 0 0 0.1 0.148 0.2 0.3 0.4 0.5 0.6 0.8 External stac pressure (in.w.c.) 2.6.2. MMA024 Figure 4. MMA018 - Blower Data Air flow rate(CFM) 24K 800 700 600 500 400 300 200 100 0 0 0.1 0.148 0.2 0.3 0.4 0.5 0.6 0.8 External stac pressure (in.w.c. Figure 5. MMA024 - Blower Data 11 L M H L M H 2.6.3. MMA036 1200 36K 1000 Air flow rate(CFM) 800 600 L M 400 H 200 0 0 0.1 0.148 0.2 0.3 0.4 0.5 0.6 0.8 External stac pressure (in.w.c.) Figure 6. MMA036 - Blower Data 12 2.6.4. MMA048 48K 1600 1400 1200 Air flow rate(CFM) 1000 800 L M 600 H 400 200 0 0 0.1 0.148 0.2 0.3 0.4 0.5 0.6 0.8 External stac pressure (in.w.c.) 13 2.6.5. MMA060 60K 1800 1600 1400 Air flow rate(CFM) 1200 1000 L 800 M 600 H 400 200 0 0 0.1 0.148 0.2 0.3 0.4 0.5 0.6 0.8 External stac pressure (in.w.c.) Figure 7. MMA060 - Blower Data 14 3. Noise Criterion Curves 6.56ft (2m) 3.28ft (1m) Air Handler 4.92ft (1.5m) Figure 8. Noise Measurement - Concealed Duct Sound is measured 4.92 ft (1.5m) away from the center of the air handler. Data is valid and gathered in free field and nominal operation conditions. The sound level will vary based on where the unit is installed. Acoustic pressure OdB = 20Pa MMA018 MMA024 15 MMA036 MMA048 MMA060 16 3.1. Indoor and Outdoor Power and Communication Wiring Requirements CAUTION This unit must be properly grounded and protected by a circuit breaker. The ground wire for the unit must not be connected to a gas or water pipe, a lightning conductor or a telephone ground wire. Do not connect power wires to the outdoor unit until all other wiring and piping connections have been completed. Install all wiring at least 3 feet (1 m) away from televisions, radios, LEDs, or other electronic devices in order to avoid the possibility of interference with the unit operation. Do not install the unit near a lighting appliance that includes a ballast. The ballast may affect remote control operation. WARNING Isolate the power supply before accessing unit electrical terminals. Install unit so that unit disconnect is accessible. Follow all local and national codes, as well as this installation instruction, during installation. Do NOT overload electrical circuit, as this may lead to failure and possible fire. Use specified wiring and cable to make electrical connections. Clamp cables securely and make sure that connections are tight to avoid strain on wiring. Insecure wiring connections may result in equipment failure and risk of fire. Wiring must be installed so that all cover plates can be securely closed. In the U.S.A., wiring must conform with current local codes and the current National Electric Code (NEC). In Canada, wiring must conform with current local codes and the current Canadian Electrical Code (CEC). 3.2. Overview Refer to unit nameplate for minimum circuit ampacity and maximum over-current protection size. · All indoor units are powered by the outdoor unit. · Make all electrical power wiring connections at the outdoor unit. · Size outdoor unit power per local code and power requirements. · Connect wiring between indoor and outdoor terminals. · Refer to unit name plate for rated voltage. · Be sure to reattach all electrical box covers after connections are complete. · Follow NEC/CEC standards and all local and state codes during wiring installation. 17 3.3. Indoor/Outdoor Unit Match-Ups Single Zone Outdoor Unit MPC018S4S-*P MPC024S4S-*P MPC036S4S-*P MPC048S4S-*P MPC060S4S-*P MLB018S4S-*P MLB024S4S-*P MLB036S4S-*P MLB048S4S-*P Indoor Unit MMA018 MMA024 MMA036 MMA048 MMA060 MMA018 MMA024 MMA036 MMA048 Voltage 208/230V 208/230V 208/230V 208/230V 208/230V 208/230V 208/230V 208/230V 208/230V Multi-Zone Outdoor Unit MPC024S4M-*P MPC030S4M-*P MPC036S4M-*P MPC048S4M-*P MLB030S4M-*P MLB036S4M-*P MLB048S4M-*P Indoor Unit MMA018 / MMA024 MMA018 / MMA024 MMA018 / MMA024 MMA018 / MMA024 MMA018 / MMA024 MMA018 / MMA024 MMA018 / MMA024 Voltage 208/230V 208/230V 208/230V 208/230V 208/230V 208/230V 208/230V Matching With Multi-Zone Outdoor Unit NOTE: Mode of Air Handler (MMA) Mode of other IDU Zones Mode Conflict Unit Fan MMA Cooling Heating/Electric Heat/Emergency Heat MMA Dehumidification MMA Heating Other IDU Zones Electric Heat Fan/Cooling/Dehumidificaton Other IDU Zones Emergency Heat Other IDU Zones When Heating reaches the temperature and shuts down with other IDU zones heating normally, the air handler's fan will stop running and the Fan-ON mode is invalid. The heat pump will start synchronously when Emergency Heat or Electric Heat is started. When two air handler units are connected by a multi-zone outdoor unit, the above rules apply. The second air handler unit is regarded as other IDU Zones. 3.4. Controller Compatibility Indoor Unit MMA018SM4-1P MMA024SM4-1P MMA036S4-1P MMA048S4-1P MMA060S4-1P Controller M0STAT120N-1 (Mini-Split Wired Programmable Controller) 24-Volt Thermostat (optional) 18 3.5. Electrical Wiring Diagrams Abbreviation Y/G CAP FAN ECM T1 T2A T2B T2 Meaning Yellow - Green Conductor Indoor Fan Capacitor Indoor Fan Motor Indoor Electronically Commutated Motor Indoor Room Temperature Sensor Indoor Coil Inlet Temperature Sensor Indoor Coil Outlet Temperature Sensor Indoor Coil Temperature Sensor 18-24K Wiring Diagram A BCDE BCD 345 345 345 345 23456 NOTE1: 1.The parts with dotted line indicates optional features. 2.Remove the short connector of JR1 when you use the "on-off" function. 3.Remove the short connector of J1 when you use the "WATER LEVEL SWITCH" function. WIRING DIAGRAM CODE PART NAME ECM INDOOR ECM MOTOR CAP INDOOR FAN CAPACITOR FAN INDOOR FAN MOTOR T1 ROOM TEMP.SENSOR T2 COIL TEMP.SENSOR T2A INDOOR COIL INLET TEMP.SENSOR 24V THERMOSTATS SETTING CODE FACTORY SETTING F01 S3 8 0~F 79 ON ON ON ON ON SW1 SW2 12 34 12 34 SW3 12 34 SW4 12 34 S4 12 ON~OFF ON~OFF ON~OFF ON~OFF ON~OFF 4. This symbol indicates the element is optional, the actual shape shall prevail. T2B INDOOR COIL OUTLET TEMP.SENSOR FOR SETTING NETADDRESS UVLED OUTPUT ECM M 2 4(3) 3 BCD BCD HEATER S1+S2 EF 0 1 2 ON EF 0 1 2 ON EF0 12 ON EF 0 1 2 ON 67 9A 67 9A 67 9A 67 9A 8 12 8 12 8 12 8 12 CODE 0~F 0~F 0~F 0~F NETADDRESS 0~15 3 FACTORY SETTING 16~31 32~47 48~63 CN43 CN46 CN6 CN29 Output:24VAC Output:5VDC Output:5VDC Output:5VDC CN12 Output:24VAC 485 PORT CN4 CN5 CN1 Output:24VAC Output:24VAC Output:+15VDC BCD R C L T1 T2A T2B T2 Output:12VDC CN34 Output:220VAC CN15 CN23CN33 CN5 CN21 Output:24VAC Output:220VAC CN9 CN22 CN10 WATER LEVEL SWITCH Output:12VDC Output:5VDC J1 INDOOR UNIT MAINBOARD Output:15VDC 6 RED TRANS RED ALARM WORK DRY CONTACT DRY CONTACT CN18 L and N :230VAC S and N :0-24VDC N LS CN11 BLUE 2 RED BLACK YELLOW (WHITE) Y/G 3 NOTE2: 1.The other switches should be set as RED "Off" state from factory. 2.The specific use of the switches please 2 reference to the manual of application. 3.The CN5/CN23/CN33 connect to left and right terminals. L1cL2cSc FOR SETTING POWER(DC MOTOR MODEL ONLY) Y/G TO OUTDOOR UNIT F01 F01 F01 F01 F01 F01 F01 A BCDE A BCDE A BCDE A BCDE A BCDE A BCDE A BCDE 23 456 23 456 23 456 23 456 23 456 23 456 23 456 ENC1 79 79 79 79 79 79 79 8 8 8 8 8 8 8 CODE 4 5 7 8 CAPACITY 53 54~71 72~90 91~105 FACTORY SETTING ACCORDING TO RELATED MODEL. 9 106~140 A 141~160 B 161 CONTROLLER Remote Control 4 Output:+12VDC ON/OFF CN2 CN7 CN14 Output:+15VDC Output:+12VDC G Y1 Y/Y2 JR1 Output:24VAC Output:24VAC Output:24VAC Output:24VAC CN6 CN9 CN10 CN11 B W W1 W2 E/AUX DH Output:+5VDC CN3 E Y X 24V THERMOSTAT 16023000A74404 TCoomCCmM.Bus TO THE WIRE 19 36-60K Wiring Diagram NOTE1: WIRING DIAGRAM 24V THERMOSTATS SETTING A BCDE BCD 79 345 345 345 345 23456 1.The parts with dotted line indicates CODE PART NAME optional features. 2.Remove the short connector of JR1 ECM INDOOR ECM MOTOR F01 S3 ON SW1 ON SW2 ON SW3 ON SW4 ON S4 when you use the "on-off" function. 3.Remove the short connector of J1 when you use the "WATER LEVEL SWITCH" function. 4. This symbol indicates the element T1 T2 T2A T2B ROOM TEMP.SENSOR COIL TEMP.SENSOR INDOOR COIL INLET TEMP.SENSOR INDOOR COIL OUTLET TEMP.SENSOR CODE FACTORY SETTING 8 0~F 12 34 12 34 12 34 12 34 12 ON~OFF ON~OFF ON~OFF ON~OFF ON~OFF is optional, the actual shape shall prevail. FOR SETTING NETADDRESS UVLED OUTPUT ECM M 2 4(3) 3 BCD BCD HEATER S1+S2 EF 0 1 2 ON EF 0 1 2 ON EF0 12 ON EF 0 1 2 ON 67 9A 67 9A 67 9A 67 9A 8 12 8 12 8 12 8 12 CODE 0~F NETADDRESS 0~15 3 FACTORY 0~F 16~31 0~F 32~47 0~F 48~63 SETTING CN43 CN46 CN6 CN29 Output:24VAC Output:5VDC Output:5VDC Output:5VDC CN12 Output:24VAC 485 PORT Output:24VAC Output:24VAC Output:+15VDC BCD T1 T2A T2B T2 Output:12VDC CN34 Output:220VAC CN15 CN23CN33 CN5 CN21 Output:24VAC Output:220VAC CN9 CN22 CN10 Output:12VDC Output:15VDC 6 WATER LEVEL SWITCH Output:5VDC J1 INDOOR UNIT MAINBOARD RED TRANSRED ALARM WORK DRY CONTACT DRY CONTACT CN18 CN20 S1 S2 L and N :230VAC NL CN11 BLUE 2 RED Y/G 2 NOTE2: Y/G BLACK 1.The other switches should be set as RED "Off" state from factory. 2.The specific use of the switches please reference to the manual of application. COMMUNICATION 3.The CN5/CN23/CN33 connect to left and right terminals.TO OUTDOOR UNIT 2 L1 L2 FOR SETTING POWER(DC MOTOR MODEL ONLY) TO OUTDOOR UNIT F01 F01 F01 F01 F01 F01 F01 OR POWER ENC1 A BCDE A BCDE A BCDE A BCDE A BCDE A BCDE A BCDE 23 456 23 456 23 456 23 456 23 456 23 456 23 456 79 79 79 79 79 79 79 8 8 8 8 8 8 8 CODE 4 5 7 8 CAPACITY 53 54~71 72~90 91~105 FACTORY SETTING ACCORDING TO RELATED MODEL. 9 106~140 A 141~160 B 161 CN4 CN5 CN1 CONTROLLER TO THE WIRE Remote Control L Output:+12VDC G 4 R C Y1 Y/Y2 ON/OFF CN2 CN7 Output:+15VDC JR1 Output:24VAC Output:24VAC Output:24VAC Output:24VAC CN6 CN9 CN10 CN11 B W W1 W2 E/AUX DH CN14 Output:+12VDC Output:+5VDC CN3 E Y X 24V THERMOSTAT 16023000A74403 To CCM Comm.Bus 3.6. Wiring Guide Table 1. Single Zone Mini-Split Wiring Guide Systems Indoor to Outdoor Wiring (Communication/Power) 1, 2, 3 and GND Outdoor to Main Power L1, L2 and GND Indoor to Outdoor Wiring (Communication/Power) 1, 2, 3 and GND Outdoor to Main Power L1, L2 and GND Indoor to Outdoor Wiring (Power only) L1, L2 and GND Indoor to Outdoor Wiring (Communication only) (S1, S2 and GND) Outdoor to Main Power L1, L2 and GND Indoor to Outdoor Wiring (Power only) L1, L2 and GND System Capacity 18K 18K 24K 24K 36K 36K 48K 48K System Voltage Number of Conductors Wire Type 208/230 VAC 4 Stranded 208/230 VAC 3 Stranded 208/230 VAC 208/230 VAC 208/230 VAC 208/230 VAC 208/230 VAC 208/230 VAC 4 Stranded 3 Stranded 3 Stranded 3 Stranded (shielded) 3 Stranded 3 Stranded Wire Gauge 16AWG*4 Stranded, unshielded MCA: 18A 14AWG*3 16AWG*4 Stranded, unshielded MCA: 20A 12AWG*3 16AWG*3 Stranded, unshielded 24AWG*3 MCA: 30A 10AWG*3 16AWG*3 Stranded, unshielded 20 Systems Indoor to Outdoor Wiring (Communication only) (S1, S2 and GND) Outdoor to Main Power L1, L2 and GND Table 1. Single Zone Mini-Split Wiring Guide System Capacity System Voltage Number of Conductors Wire Type 60K 208/230 VAC 3 Stranded (shielded) 60K 208/230 VAC 3 Stranded Wire Gauge 24AWG*3 MCA: 35A 8AWG*3 Table 2. System and Terminal Designations System Capacity Multi-Zone Installation Wiring Requirements System Voltage Number of Conductors Wire Type Indoor to Outdoor Unit Indoor to Outdoor Wiring (Communication/Power) 18K 208/230VAC 4 Stranded and unshielded 1, 2, 3 and GND Outdoor to Main Power L1, L2 and GND 18K 208/230VAC 3 Stranded and unshielded Indoor to Outdoor Wiring (Communication/Power) 24K 208/230VAC 4 Stranded and unshielded 1, 2, 3 and GND Multi-Zone Outdoor Unit to Main Power Outdoor to Main Power 18K L1, L2 and GND 208/230VAC 3 Stranded and unshielded Outdoor to Main Power 24K L1, L2 and GND 208/230VAC 3 Stranded and unshielded Outdoor to Main Power 30K L1, L2 and GND 208/230VAC 3 Stranded and unshielded Outdoor to Main Power 36K L1, L2 and GND 208/230VAC 3 Stranded and unshielded Outdoor to Main Power L1, L2 and GND 48K 208/230VAC 3 Stranded and unshielded MCA = Minimum Circuit Amps Wire Gauge / MCA 16AWG 14AWG / 18A 16AWG 14AWG / 18A 12AWG / 22A 16AWG 10AWG / 30A 8AWG / 35A 21 3.7. Terminal Connections 208/230V Outdoor Unit Terminal Block 1 2 3 L1 L2 From Power Supply 208/230V Indoor Unit Terminal Block 12 3 Outdoor Unit Indoor Unit Figure 9. Single-Zone Wiring 24K and Below 208/230V Outdoor Unit Terminal Block L2 1(A) 2(A) 3(A) 1(B) 2(B) 3(B) 208/230V Indoor Unit B Terminal Block 12 3 208/230V Indoor Unit A Terminal Block 12 3 From Power Supply Indoor Unit B Outdoor Unit Figure 10. Multi-Zone Wiring 24K 22 Indoor Unit A 208/230V Outdoor Unit Terminal Block L2 1(A) 2(A) 3(A) 1(B) 2(B) 3(B) 1(C) 2(C) 3(C) 1(D) 2(D) 3(D) 1(E) 2(E) 3(E) From Power Supply 208/230V Indoor Unit Terminal Block 12 3 208/230V Indoor Unit Terminal Block 12 3 To Indoor Unit A To Indoor Unit B To Indoor Unit C Outdoor Unit Indoor Unit E Indoor Unit D Figure 11. Multi-Zone Wiring 208/230V Outdoor Unit Power Terminal Block L1 L2 208/230V Outdoor Unit Power Terminal Block L1 L2 From Power Supply Outdoor Unit Communication Terminal Block S1 S2 208/230V Indoor Unit Power Terminal Block Indoor Unit CommunicationTerminal Block E Y XQ E P S1 S2 Y L1 L2 Outdoor Unit Indoor Unit Figure 12. Communication - Single-Zone Wiring 36K - 60K Only 23 4. Connection to Centralized Controller, ON/OFF and Alarm Devices 4.1. Centralized Controller Mini-Split indoor units can be connected to a centralized controller (e.g. Lennox VRF Manager - LVM or Trane Tracer) or a BACnet or Lonworks gateway using the XYE terminals on the indoor unit main board. X Y (E) Y/G To CCM Comm.Bus Figure 13. Typical Central Controller Connection Point Example Figure 14. Typical Central Controller Connection Point Example 2 4.2. ON/OFF Devices Mini-Split indoor units can be connected to an external device such as a fire alarm system using two dry contacts on the indoor unit main board. These dry contacts allow the external device to turn the indoor unit on or off. Dry contacts can be used for alarm notice that float switch tripped etc. Remote on-off Central ports control ports (VRF) Figure 15. Indoor Unit Connection Points for ON/OFF 24 4.3. Alarm Devices Mini-Split indoor units can be connected to an alarm device such as a light or buzzer using two dry contacts on the indoor unit main board. Figure 16. Alarm Device Connection Points (Typical) 4.4. Micro-Switch Introduce Alarm Terminal Port (CN33) Connect the power; it must be less than 24V. The current is less than 0.5A. If the unit encounters a problem, the relay closes and the alarm functions. 25 Remote Control Terminal (ON-OFF, CN2, Short Connector JR1) NOTE: Remove the short connector (JR1) when using the ON-OFF function. Remote Switch Unit Status ON (close) 1 Unit is on. OFF (open) 2 Unit is off. 1. Unit responds to demand; use the remote controller to select the required mode. 2. Unit will not respond to the demand from the remote controller. Demand Response Time Within two (2) seconds Within two (2) seconds NOTE: If the remote switch is off, but the remote controller is on, the CP code appear on the display board. NOTE: The voltage of the port (CN2) is 12V DC; maximum current is 5mA. 4.5. Dial Codes NOTE: The SW4 DIP switch is for certified service technical use only. No. Dial Code Control Scenario 1 SW1-2 1,2 2 SW1-3 1,2,3 Function Anti-cold blow protection option Single cooling / heating and cooling options ON NO Cooling 3 SW2-1 4 SW2-1 5 SW2-2 6 SW2-3 1 Compressor Running (demand working with Compressor heat pump+ Electric heat) slower speed 2 Temperature differential to activate first stage 2°F (1°C) auxiliary heat(the GAP of T1 and Ts),Wire controller demand with heat pump+Electric heat working together 2 Electric heat on delay YES 2 Electric auxiliary heating delay to start time 30 minutes OFF Note [Default] YES [Default] Cooling & Heating [Default] Faster Compressor [Default] 4°F (2°C) Only affects compressor and W1 [Default]NO [Default] 15 minutes Based on SW2-2 is ON 26 No. Dial Code Control Scenario Function ON OFF Note 7 SW2-4 2 Compressor/Auxiliary heat outdoor ambient The compressor [Default] The SW2-4 and S3 lockout will not operate heater will need to working if the outdoor not operate if together temperature is the outdoor lower than the temperature is temperature greater than represented by S3 the temperature represented by S3 8 Rotary Switch S3 2 Set outdoor temperature Limitation (for auxiliary 0 means that the temperature protection heating or compressor) is not turned on, the dial range is 1 through F, 1 equals -4°F and it increase up to 46°F. See "Table 2. Dial Range Table" on page 29. 9 SW3-1 1 Maximum continuous runtime allowed before 30 minutes system automatically stages up capacity to satisfy set point. This adds 1 to 5°F to the user set point in the calculated control point to increase capacity and satisfy user set point [Default] 90 minutes 10 SW3-2 1 Cooling and heating Y/Y2 temperature differential adjustment. Compressor slower speed [Default] Faster Compressor Only affects compressor 11 SW3-3 1 Compressor Running (demand working with Compressor [Default] Faster Only affects heat pump+ Electric heat) slower speed Compressor compressor and W2 12 SW3-3 2 Temperature differential to activate second 4°F (2°C) [Default] 6°F (3°C) stage auxiliary heating(the GAP of T1 and Ts) Wire controller demand with heat pump+Electric heat working together 13 SW3-4 1,3 Fan speed of cooling mode when 24V Thermostat is applied for. Turbo High 14 SW4 1,2,3 Electric heat nominal CFM adjustment Available settings are 000/001/010/011. Each digit corresponds an individual switch position. For example [SW4-1 OFF, SW4-2 ON, SW4 -3 OFF] = 010 15 S4-1 1,3 Default ON [Default] For single stage supplemental heat, W1 and W2 are connected For dual stage supplemental heat, W1 and W2 are controlled independently 16 S4-2 1,3 DH function selection [Default] Dehumidification control not available Dehumidification feature is enabled through thermostat 24V Thermostat, 1 S1 + S2 Control Scenario Wired Controller 2 S1 + S2 Full 24V 3 S3 S3 (°F) S3 (°C) 0 OFF OFF 1 -4 -20 2 0 -18 3 3 -16 4 7 -14 5 10 -12 6 14 -10 7 18 -8 8 21 -6 9 25 -4 A 28 -2 B 32 0 C 36 2 D 39 4 E 43 6 F 46 8 Table 3. Dial Range Table 27 DIP Switch S1 and S2 Address dialing S1+S2: Address dialing is required when using the centralized controller. Network address: · The address silkscreen is NET address, which is composed of a 16bit address rotary code S2 plus a two-digit DIP switch S1 (Set during engineering installation, no network function needs to be set) · When S2 is 00 (the dialing code is not connected), the network address value is S2 · When S2 is 10 (corresponding to the switch of the hardware connected to the 10K resistor), the network address value is S2 plus 32 · Determined by dial code S2 1-10K 2-5.1K. When S2 is 01 (corresponding to the dial code of the 5.1K resistor connected to the hardware is turned on), the network address value is S2 plus 16 · When S2 is 11 (all dialing codes are on), the network address value is S2 plus 48. NOTE: The SW4 DIP switch is for certified service technician use only. Determined by Dial Code S2 1-10K 2-5.1K Dial code selection Website address Mode Priority G OFF / 0 FAN 7 1 Cooling stage 1 * Cooling stage 2 Dehumidification * 6 * Dehumidification * Heat pump stage 1 * Heat pump stage 2 5 * Heat pump stage 2 * Electric heater kit 1 * Electric heater kit 2 3 * Electric heater kit 1 and kit 2 * Heat pump stage 1 + Electric heater kit 1 * Heat pump stage 1 + Electric heater kit 2 * Heat pump stage 2 + Electric heater kit 1 * Heat pump stage 2 + Electric heater kit 1 * Heat pump stage 2 + Electric heater kit 2 * 4 Heat pump stage 2 + Electric heater kit 2 * Heat pump stage 1 + Electric heater kit 1 * and kit 2 Heat pump stage 2 + Electric heater kit 1 * and kit 2 Heat pump stage 2 + Electric heater kit 1 * and kit 2 Y1 Y/Y2 0 0 0 0 1 0 * 1 1 0 * 1 1 0 * 1 * * 0 0 0 0 0 0 1 0 1 0 * 1 * * * 1 * * 1 0 * 1 * * 24V Input Terminal B W W1 W2 0 0 0 0 * 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 * 1 0 0 * 0 1 0 * 0 0 1 * 0 1 1 E/AUX DH/DS/BK Fan speed 0 * OFF 0 * Low 0 1 Mid 0 1 High 0 0 Low 0 0 Low 0 1 Mid 0 1 High 0 1 High 0 * Turbo 0 * Turbo 0 * Turbo Display 0 1 2 3 4 5 6 7 8 9 1 0 1 0 0 1 Turbo 1 0 0 1 0 1 Turbo 1 0 1 0 0 * 1 1 0 0 1 Turbo 10 1 Turbo 1 0 0 1 0 1 Turbo * 1 0 1 0 1 Turbo 1 0 1 1 0 1 Turbo 1 0 1 1 0 1 Turbo 11 * 1 1 1 0 28 1 Turbo Mode Priority G Y1 Y/Y2 24V Input Terminal B W W1 W2 Emergency heat 1 * * * * * * * Heating zone control * 1 0 1 0 * * Heating zone control * * 1 1 0 * * Heating zone control * * * * 1 * * 2 Heating zone control * 0 0 * 0 1 0 Heating zone control * 0 0 * 0 0 1 Heating zone control * 0 0 * 0 1 1 NOTE: 1: 24V signal 0: No 24V signal *: 1 or 0. The air handler unit will turn off if the 24V input cannot meet the table. E/AUX DH/DS/BK Fan speed 1 * Turbo 0 0 Low 0 0 Low 0 0 Low 0 0 Low 0 0 Low 0 0 Low Display 12 13 5. Connecting Cables The power cord connection should be selected according to the following specifications. Unit 1 drive 2 type (24K outdoor unit) 1 drive 3 type (30K outdoor unit). 1 drive 4 type (36K outdoor unit) 1 drive 5 type (48K outdoor unit) Table 4. Wire Gauge Gauge 14 14 12 10 29 Outdoor Unit Information 6. Single and Multi-Zone Outdoor Units NOTE: Outdoor units can only be installed in an unenclosed outdoor environment. WARNING The clean Air Act of 1990 bans the intentional venting of refrigerant (CFCs, HCFCs, and HFCs) as of July, 1992. Approved methods of recovery, recycling or reclaiming must be followed. Fines and/or incarceration may be levied for non-compliance. 6.1. Model Number Identification CAUTION As with any mechanical equipment, contact with sharp sheet metal edges can result in personal injury. Take care while handling this equipment and wear gloves and protective clothing. OUTDOOR SINGLE ZONE HEAT PUMP UNITS - MPC Series Type M = Mini-Split Unit Type L = Low Ambient Heat Pump P = Heat Pump M P C 018 S 4 S - 1 P Voltage P = 208/230V-1 phase-60hz Minor Design Sequence 1 = 1st Revision Major Design Sequence A = 1st Generation B = 2nd Generation C = 3rd Generation Nominal Cooling Capacity 018 = 1.5 tons 024 = 2 tons 036 = 3 tons 048 = 4 tons 060 = 5 tons Refrigerant Circuits S = Single Circuit Refrigerant Type 4 = HFC-410A Cooling Efficiency S = Standard Efficiency OUTDOOR SINGLE ZONE HEAT PUMP UNITS - MLB M L B 018 S 4 S - 1 P Series Type M = Mini-Split Voltage P = 208/230V-1 phase-60Hz Unit Type L = Low Ambient Heat Pump Major Design Sequence B = 2nd Generation Nominal Cooling Capacity 018 = 1.5 tons 024 = 2 tons 036 = 3 ton 048 = 4 ton Minor Design Sequence 1 = 1st Revision Refrigerant Circuits S = Single Circuit Refrigerant Type 4 = R-410A Cooling Efficiency S = Standard Efficiency 30 OUTDOOR MULTI-ZONE HEAT PUMP UNITS - MPC M P C 036 S 4 M - 1 P Series Type M = Mini-Split Unit Type L = Low Ambient Heat Pump P = Heat Pump Voltage P = 208/230V-1 phase-60hz Minor Design Sequence 1 = 1st Revision Major Design Sequence A = 1st Generation B = 2nd Generation C = 3rd Generation Nominal Cooling Capacity 024 = 2 tons 030 = 2.5 tons 036 = 3 tons 048 = 4 tons Refrigerant Circuits M = Multiple Circuits Refrigerant Type 4 = HFC-410A Cooling Efficiency S = Standard Efficiency OUTDOOR MULTI-ZONE HEAT PUMP UNITS - MLB M L B 036 S 4 M - 1 P Series Type M = Mini-Split Unit Type L = Low Ambient Heat Pump P = Heat Pump Voltage P = 208/230V-1 phase-60hz Minor Design Sequence 1 = 1st Revision Major Design Sequence A = 1st Generation B = 2nd Generation C = 3rd Generation Nominal Cooling Capacity 030 = 2.5 tons 036 = 3 tons 048 = 4 tons Refrigerant Circuits M = Multiple Circuits Refrigerant Type 4 = HFC-410A Cooling Efficiency S = Standard Efficiency 31 6.2. Outdoor Unit Specifications MLB SPECIFICATIONS SINGLE ZONE | 1.5 - 4 TON Outdoor Unit Model No. MLB018S4S MLB024S4S MLB036S4S MLB048S4S Nominal Size - Tons 1.5 2 3 4 Ambient Temperature Operating Range - °F Cooling Heating 22 - 122 22 - 86 22 - 122 22 - 86 22 - 122 22 - 86 22 - 122 22 - 86 Sound Data (dBA) Cooling 59 62 63 65 Heating 59 62 63 65 Refrigerant Charge furnished (R-410A) 4 lbs. 1 oz. 5 lbs. 12 oz. 16 lbs. 0 oz. 16 lbs. 0 oz. Maximum line length with furnished charge - ft. 25 25 25 25 Additional charge required per ft. - oz. 0.16 0.32 0.32 0.32 Compressor No. and Type (1) Rotary (1) Rotary Twin-Rotary Twin-Rotary Refrigerant oil type VG74 VG74 Ester Oil VG74 POE VG74 Refrigerant oil charge - oz. 21 21 49.4 49.4 Connections - in. Liquid/Gas pipe (flare) 1/4 / 1/2 3/8 / 5/8 3/8 / 5/8 3/8 / 5/8 Maximum refrigerant pipe length - ft. 98 164 213 213 Max. difference in level of indoor unit - ft. 66 82 98 98 Outdoor Fan (No.) Diameter - in. Total air volume - cfm (1) 19 1355 (1) 22 2355 (2) 22 4470 (2) 22 4470 rpm 810/720/1150 1150/1050/900/850 900/850/800/750 900/850/800/750 Outdoor Coil Number of rows 2 2 2 2 Fins per inch 18 19 18 18 Fin type Hydrophilic aluminum Tube outside diameter - in. 3/8 3/8 3/8 3/8 Tube type Rifled copper tubing Net face area - ft.2 5.19 8.16 6.43+6.97 6.43+6.97 Design Pressure PSIG 550/340 550/340 550/340 550/340 Shipping Data Net/Shipping weight (lbs.) 101 / 108 135 / 145 220 / 248 227 / 256 ELECTRICAL DATA Electrical Characteristics - 60 Hz - 1 Phase 208/230V 208/230V 208/230V 208/230V 1 Maximum Overcurrent Protection (MOCP) amps 25 35 50 50 2 Minimum circuit ampacity (MCA) 16 25 41 42 Outdoor Fan Motor Output - W 80 120 (2) 85 (2) 85 NOTE - Extremes of operating range are plus and minus 10% of line voltage. 1 HACR type circuit breaker or fuse. 2 Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. 32 MLB SPECIFICATIONS MULTI - ZO N E | 2 . 5 & 3 TO N Nominal Size - Tons 2.5 3 Outdoor Unit Model No. MLB030S4M MLB036S4M Number of Zones Up to 3 Up to 4 Ambient Temperature Range - °F Cooling 22 - 122 22 - 122 Heating 22 - 86 22 - 86 Sound Data (dBA) 63 63 Refrigerant Charge furnished (R-410A) 8 lbs. 6 oz. 10 lbs. 2 oz. Maximum line length with furnished charge (per zone) - ft. 74 98 Additional charge required per ft. - oz. 0.16 0.16 Compressor No. and Type (1) Rotary (1) Rotary Refrigerant oil type Ester Oil VG74 Ester Oil VG74 Refrigerant oil charge - oz. 33.8 47.3 Connections - in. Liquid+Gas pipe (flare) (3) 1/4 liq. + (3) 3/8 gas (3) 1/4 liq. + (3) 3/8 gas (1) 1/4 liq. + (1) 1/2 gas Maximum pipe length for all rooms - ft. 197 262 Maximum pipe length for one indoor unit - ft. 98 115 Max. height difference between indoor and outdoor units - ft. 49 49 Max. height difference between indoor units - ft. 33 33 Outdoor Fan (No.) Diameter - in. Total air volume - cfm (1) 22 2150 (2) 22 4500 rpm 1000 / 900 / 750 800 / 700 / 600 Outdoor Coil Number of rows 2.6 2 Fins per inch 16 18 Fin type Hydrophilic aluminum Tube outside diameter - in. 3/8 3/8 Tube type Rifled copper tubing Net face area - ft.² 8.16 6.54 Design Pressure PSIG 540 / 340 540 / 340 Shipping Data Net/Shipping weight (lbs.) 168 / 180 224 / 255 ELECTRICAL DATA Electrical Characteristics - 60 Hz - 1 Phase 208/230V 208/230V 1 Maximum Overcurrent Protection (MOCP) amps 40 50 2 Minimum circuit ampacity (MCA) 25 35 Outdoor Fan Motor Output - W 120 (2) 85 NOTE - Extremes of operating range are plus and minus 10% of line voltage. 1 HACR type circuit breaker or fuse. 2 Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. NOTE - Adaptors are furnished for the gas pipe connections: 018 - (2) 3/8 x 1/2 in. 030 - (3) 3/8 x 1/2 in. 33 MLB SPECIFICATIONS MULTI - ZO NE | 4 TO N Nominal Size - Tons 4 Outdoor Unit Model No. MLB048S4M Number of Zones Up to 5 Ambient Temperature Range - °F Cooling 22 - 122 Heating 22 - 86 Sound Data (dBA) 65 Refrigerant Charge furnished (R-410A) 10 lbs. 3 oz. Maximum line length with furnished charge (per zone) - ft. 123 Additional charge required per ft. - oz. 0.16 (1/4 in.) / 0.32 (3/8 in.) Compressor No. and Type (1) Rotary Refrigerant oil type Ester Oil VG74 Refrigerant oil charge - oz. 49 Connections - in. Liquid+Gas pipe (flare) (5) 1/4 + (3) 3/8 + (2) 1/2 Maximum pipe length for all rooms - ft. 262 Maximum pipe length for one indoor unit - ft. 115 Max. height difference between indoor and outdoor units - ft. 49 Max. height difference between indoor units - ft. 33 Outdoor Fan (No.) Diameter - in. Total air volume - cfm (2) 22 4500 rpm 800/700/600 Outdoor Coil Number of rows 2 Fins per inch 18 Fin type Hydrophilic aluminum Tube outside diameter - in. 3/8 Tube type Rifled copper tubing Net face area - ft.² 6.43+6.97 Design Pressure PSIG 550/340 Shipping Data Net/Shipping weight (lbs.) 239 / 270 ELECTRICAL DATA Electrical Characteristics - 60 Hz - 1 Phase 208/230V 1 Maximum Overcurrent Protection (MOCP) amps 50 2 Minimum circuit ampacity (MCA) 35 Outdoor Fan Motors Output - W (2) 85 NOTE - Extremes of operating range are plus and minus 10% of line voltage. 1 HACR type circuit breaker or fuse. 2 Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. NOTE - Adaptors are furnished for the gas pipe connections: 036 - (3) 3/8 x 1/2 in. and (1) 1/2 x 3/8 in. 048 - (3) 3/8 x 1/2 in., (2) 1/2 x 3/8 in., (2) 1/4 x 3/8 in. and (2) 1/2 x 5/8 in. 34 MPC SPECIFICATIONS SINGLE ZONE | 1.5 - 4 TON Nominal Size - Tons 1.5 2 3 4 Outdoor Unit Model No. MPC018S4S MPC024S4S MPC036S4S MPC048S4S Ambient Temperature Operating Range - °F Sound Data (dBA) Cooling Heating Cooling/Heating 13 - 122 13 - 86 58 13 - 122 13 - 86 60 13 - 122 13 - 86 65 13 - 122 13 - 86 63.5 Refrigerant (R-410A) Charge furnished 3 lbs. 8 oz. 5 lbs. 3 oz. 7 lbs. 1 oz. 9 lbs. 15 oz. Maximum line length with furnished charge - ft. 25 25 25 25 Additional charge required per ft. - oz. 0.16 0.32 0.32 0.32 Compressor No. and Type Refrigerant oil type Refrigerant oil charge - oz. Connections - in. Liquid/Gas pipe (flare) Maximum refrigerant pipe length - ft. Max. difference in level of indoor unit - ft. (1) Rotary VG74 14.9 1/4 / 1/2 98 66 (1) Rotary VG74 21.0 3/8 / 5/8 164 82 (1) Rotary VG74 33.8 3/8 / 5/8 213 98 (1) Rotary VG74 47.3 3/8 / 5/8 213 98 Outdoor Fan (No.) Diameter - in. Total air volume - cfm (1) 16-1/2 1765 (1) 22 2235 (1) 22 2120 (2) 22 4500 rpm 810 Outdoor Coil Number of rows 3 Fins per inch 19 Fin type Tube outside diameter - in. 5/16 Tube type Net face area - ft.2 5.90 900 1050 2.6 2 18 18 Hydrophilic aluminum 5/16 3/8 Rifled copper tubing 8.21 8.16 900 2 18 3/8 13.53 Design Pressure PSIG 550 / 340 550 / 340 550 / 340 550 / 340 Shipping Data Net/Shipping weight (lbs.) 95 / 102 125 / 135 155 / 166 219 / 249 ELECTRICAL DATA Electrical Characteristics - 60 Hz - 1 Phase 1 Maximum Overcurrent Protection (MOCP) amps 2 Minimum circuit ampacity (MCA) 208/230V 25 17 208/230V 30 22 208/230V 45 30 208/230V 50 36.5 Outdoor Fan Motor Output - W 80 120 120 85 NOTE - Extremes of operating range are plus and minus 10% of line voltage. 1 HACR type circuit breaker or fuse. 2 Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. 35 MPC SPECIFICATIONS SINGLE ZONE | 5 TON Nominal Size - Tons 5 Outdoor Unit Model No. MPC060S4S Ambient Temperature Operating Range - °F Cooling Heating 60 - 90 32 - 86 Sound Data (dBA) Cooling/Heating Hi/Med/Low 50 / 47 / 45 Refrigerant (R-410A) Charge furnished 10 lbs. 9 oz. Maximum line length with furnished charge - ft. 25 Additional charge required per ft. - oz. 0.32 Compressor No. and Type Refrigerant oil type Refrigerant oil charge - oz. Connections - in. Liquid/Gas pipe (flare) Maximum refrigerant pipe length - ft. Max. difference in level of indoor unit - ft. (1) Rotary VG74 47.3 3/8 / 7/8 213 98 Outdoor Fan (No.) Diameter - in. Total air volume - cfm (2) 22 4500 Outdoor Coil rpm Number of rows Fins per inch Fin type Tube outside diameter - in. Tube type Net face area - ft.2 900 5 1.3 Hydrophilic aluminum 3/8 Rifled copper tubing 13.58 Design Pressure PSIG 550 / 340 Shipping Data Net/Shipping weight (lbs.) 164 / 190 ELECTRICAL DATA Electrical Characteristics - 60 Hz - 1 Phase 1 Maximum Overcurrent Protection (MOCP) amps 2 Minimum circuit ampacity (MCA) 208/230 50 39 Outdoor Fan Motor Output - W 85 NOTE - Extremes of operating range are plus and minus 10% of line voltage. 1 HACR type circuit breaker or fuse. 2 Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. 36 MPC SPECIFICATIONS MULTI - ZO N E | 2 TO N Nominal Size - Tons 2 2 Outdoor Unit Model No. MPC024S4M MPC030S4M Number of Zones Up to 4 Up to 5 Ambient Temperature Range - °F Cooling 13 - 122 13 - 122 Heating 13 - 86 13 - 86 Sound Data (dBA) Cooling 63 64 Heating 63 64 Refrigerant Charge furnished (R-410A) 8 lbs. 6 oz. 10 lbs. 2 oz. Maximum line length with furnished charge (per zone) - ft. 98 123 Additional charge required per ft. - oz. 0.16 0.16 Compressor No. and Type (1) Rotary (1) Rotary Refrigerant oil type VG74 VG74 Refrigerant oil charge - oz. 33.80 47.30 Connections Liquid+Gas+Gas pipe (in.) flare (4) 1/4 + (3) 3/8 / (1) 1/2" (5) 1/4 + (3) 3/8 / (2) 1/2" Max pipe. length for all rooms - ft. 262 262 Max. pipe length for one indoor unit - ft. 115 115 Max. height difference between indoor and outdoor units - ft. 49 49 Max. height difference between indoor units - ft. 33 33 Outdoor Fan(s) (No.) Diameter - in. (1) 22 (2) 22 Total air volume - cfm 2150 4500 Motor rpm 1000/900/750 800/700/600 Outdoor Coil Number of rows 2.6 2 Fins per inch 16 18 Fin type Hydrophilic Aluminum Tube outside diameter - in. 3/8 3/8 Tube type Rifled Copper Tubing Net face area - ft.² 8.16 6.66+6.66 Design Pressure PSIG 540 / 340 540 / 340 Shipping Data Net/Shipping weight (lbs.) 169 / 181 224 / 255 ELECTRICAL DATA Electrical Characteristics - 60 Hz - 1 Phase 208/230V 208/230V 1 Maximum Overcurrent Protection (MOCP) amps 40 50 ² Minimum circuit ampacity (MCA) 25 35 Outdoor Fan Motor Output - W 120 (2) 85 NOTE - Extremes of operating range are plus and minus 10% of line voltage. 1 HACR type circuit breaker or fuse. 2 Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. NOTE - Adaptors are furnished for the gas pipe connections: 036 - (3) 3/8 x 1/2 in. and (1) 1/2 x 3/8 in. 048 - (3) 3/8 x 1/2 in., (2) 1/2 x 3/8 in., (2) 1/4 x 3/8 in. and (2) 1/2 x 5/8 in. 37 MPC SPECIFICATIONS MULTI - ZO N E | 3 & 4 TO N Nominal Size - Tons 3 4 Outdoor Unit Model No. MPC036S4M MPC048S4M Number of Zones Up to 4 Up to 5 Ambient Temperature Range - °F Cooling 13 - 122 13 - 122 Heating 13 - 86 13 - 86 Sound Data (dBA) Cooling 63 64 Heating 63 64 Refrigerant Charge furnished (R-410A) 8 lbs. 6 oz. 10 lbs. 2 oz. Maximum line length with furnished charge (per zone) - ft. 98 123 Additional charge required per ft. - oz. 0.16 0.16 Compressor No. and Type (1) Rotary (1) Rotary Refrigerant oil type VG74 VG74 Refrigerant oil charge - oz. 33.80 47.30 Connections Liquid+Gas+Gas pipe (in.) flare (4) 1/4 + (3) 3/8 / (1) 1/2" (5) 1/4 + (3) 3/8 / (2) 1/2" Max pipe. length for all rooms - ft. 262 262 Max. pipe length for one indoor unit - ft. 115 115 Max. height difference between indoor and outdoor units - ft. 49 49 Max. height difference between indoor units - ft. 33 33 Outdoor Fan(s) (No.) Diameter - in. (1) 22 (2) 22 Total air volume - cfm 2150 4500 Motor rpm 1000/900/750 800/700/600 Outdoor Coil Number of rows 2.6 2 Fins per inch 16 18 Fin type Hydrophilic Aluminum Tube outside diameter - in. 3/8 3/8 Tube type Rifled Copper Tubing Net face area - ft.² 8.16 6.66+6.66 Design Pressure PSIG 540 / 340 540 / 340 Shipping Data Net/Shipping weight (lbs.) 169 / 181 224 / 255 ELECTRICAL DATA Electrical Characteristics - 60 Hz - 1 Phase 208/230V 208/230V 1 Maximum Overcurrent Protection (MOCP) amps 40 50 ² Minimum circuit ampacity (MCA) 25 35 Outdoor Fan Motor Output - W 120 (2) 85 NOTE - Extremes of operating range are plus and minus 10% of line voltage. 1 HACR type circuit breaker or fuse. 2 Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. NOTE - Adaptors are furnished for the gas pipe connections: 036 - (3) 3/8 x 1/2 in. and (1) 1/2 x 3/8 in. 048 - (3) 3/8 x 1/2 in., (2) 1/2 x 3/8 in., (2) 1/4 x 3/8 in. and (2) 1/2 x 5/8 in. 38 6.3. Single-Zone Outdoor Unit Dimensions A C D E Model MPC018S4S-*P MPC024S4S-*P MPC036S4S-*P MPC048S4S-*P MPC060S4S-*P MLB018S4S-*P MLB024S4S-*P MLB036S4S-P MLB048S4S-P B TYPICAL APPEARANCE OF UNITS Figure 17. Single Zone Outdoor Unit Dimensions - Inches (mm) Unit of Measurement A B C D inches mm inches mm inches mm inches mm 37-5/8 955 37-1/4 946 41-1/8 1045 37-1/2 952 26-1/8 664 26-1/2 673 27-7/8 708 26 660 26-1/2 673 37-7/8 810 55-1/2 1410 52-1/2 1334 12-3/4 324 15-7/8 403 16-3/8 416 16-3/10 414 inches mm inches mm inches mm inches mm 40-3/4 1035 40-1/2 1029 41-1/8 1045 41-1/8 1045 26-1/2 673 26-1/2 673 37-1/2 953 37-1/2 953 31-7/8 810 31-7/8 810 55-1/2 1333 55-1/2 1333 16-1/8 410 16-1/8 410 16-3/8 416 16-3/8 416 E 15 381 18 457 15-7/8 448 18-3/5 472 15-7/8 402 15-7/8 410 15-7/8 403 15-7/8 403 39 6.4. Multi-Zone Outdoor Unit Dimensions A C D E Model MPC024S4M-*P MPC030S4M-*P MPC036S4M-*P MPC048S4M-*P MLB030S4M-*P MLB036S4M-*P MLB048S4M-*P B Unit of Measurement A B C D inches mm inches mm 40-3/4 1035 41-3/4 1060 26-1/2 673 25 635 31-7/8 810 55-1/2 1333 16-1/8 410 16-3/8 416 inches 40-5/8 26-1/2 31-7/8 15-1/8 mm 1035 673 810 410 inches 41-3/4 25 55-1/2 16-3/8 mm 1060 635 1333 416 Figure 18. Multi-Zone Outdoor Unit Dimensions - Inches (mm) E 15-7/8 403 17-5/8 448 15-7/8 403 17-5/8 448 40 6.5. Outdoor Unit Clearances - Single Units 24 (610) Air Inlet 1 12 (305) 12 (305) 24 (610) 79 (2007) Air Outlet 1 Minimum rear clearance can be 6 inches (152 mm) when mounted on brackets and with no obstructions on the other three sides. 24 (610) 12 (305) 24 (610) Air Inlet 1 12 (305) Air Outlet 79 (2007) 1 Minimum rear clearance can be 6 inches (152 mm) when mounted on brackets and with no obstructions on the other three sides. 41 6.6. Outdoor Unit Clearances - Multiple Units (Min1i0m(u2m54)) (Min1i0m(u2m54)) Unit Height (A) FLOAWIR FLOAWIR 6(0M(i1n5im00u)m) 2(4M(in6i1m0u) m) 11(8M(i2n9im9u7m) ) Height of Wall (C) UWniat ltlo(B) CLEARANCE NOTES FOR MULTIPLE UNITS: If the height of the wall (C) is less than or equal to the height of the smallest unit (A), the distance from the unit to the wall (B) must be a minimum of 10 inches (254 mm). If 1/2 the height of the unit (A) is less than the height of the wall (C), the distance from the unit to the wall (B) must be a minimum of 12 inches (305 mm). If the height of the wall (C) is greater than the height of the unit (A), the distance from the unit to the wall (B) must be a minimum of 20 inches (508 mm). Figure 19. Multiple Outdoor Unit Clearances - Inches (mm) 42 7. MLB and MPC Multi-Zone System Combinations Table 5. MLB and MPC Multi-Zone System Combinations NOTE - For multi-zone systems, the total capacity of all indoor units must be 66% to 133% of the outdoor unit capacity. Outdoor Unit Model No. Number of Zones #1 Indoor Unit Capacity #2 #3 #4 #5 Nominal Cooling Capacity at Rated System Capacity (Btuh) #1 #2 #3 #4 #5 Nominal Heating Capacity at Rated System Capacity (Btuh) #1 #2 #3 #4 #5 ¹ 1 18K - - - - - - - - - - - - 16,000 - - 24K - - - - - - - - - - - - 21,000 - - - - - - - - - - - - - - - - 17,000 - - - - - 22,000 - - - - - - - - - - - - - - - - - - 12K 6K - - - - - - - - - 12,000 6,000 - - - - - - - - - 12,900 6,500 - - - - - - - - - 18K 6K - - - - - - - - - 17,000 5,000 - - - - - - - - - 18,900 6,300 - - - - - - - - - 9K 9K - - - - - - - - - 9,000 9,000 - - - - - - - - - 9,700 9,700 - - - - - - - - - 2 12K 9K - - - - - - - - - 11,000 8,000 - - 18K 9K - - - - - - - - - 16,000 8,000 - - - - - - - - - - - 12,900 9,700 - - - - - 18,300 9,200 - - - - - - - - - - - - - 12K 12K - - - - - - - - - 11,000 11,000 - - - - - - - - - 12,600 12,600 - - - - - - - - - 18K 12K - - - - - - - - - 15,000 10,000 - - - - - - - - - 17,400 11,600 - - - - - - - - - 18K 18K - - - - - - - - - 14,000 14,000 - - - - - - - - - 14,800 14,800 - - - - - - - - - 6K 6K 6K - - - - - - 7,000 7,000 7,000 - - - - - - 8,500 8,500 8,500 - - - - - - MPC024S4M 9K 6K 6K - - - - - - 10,000 7,000 7,000 - - - - - - 11,500 7,700 7,700 - - - - - - 12K 6K 6K - - - - - - 13,000 6,000 6,000 - - - - - - 13,900 7,000 7,000 - - - - - - 18K 6K 6K - - - - - - 17,000 6,000 6,000 - - - - - - 17,500 5,900 5,900 - - - - - - 9K 9K 6K - - - - - - 9,000 9,000 6,000 - - - - - - 9500 9500 6,000 - - - - - - 12K 9K 6K - - - - - - 12,000 9,000 6,000 - - - - - - 12,700 9,500 6,400 - - - - - - 3 18K 9K 6K - - - - - - 16,000 8,000 5,000 - - 12K 12K 6K - - - - - - 11,000 11,000 6,000 - - - - - - 16,100 8,100 5,400 - - - - - 11,700 11,700 5,900 - - - - - - - - 18K 12K 6K - - - - - - 15,000 10,000 5,000 - - - - - - 15,000 10,000 5,000 - - - - - - 9K 9K 9K - - - - - - 9,000 9,000 9,000 - - - - - - 9,500 9,500 9,500 - - - - - - 12K 9K 9K - - - - - - 11,000 9,000 9,000 - - - - - - 11,700 8,800 8,800 - - - - - - 18K 9K 9K - - - - - - 15,000 7,000 7,000 - - - - - - 15,000 7,500 7,500 - - - - - - 12K 12K 9K - - - - - - 11,000 11,000 8,000 - - - - - - 10,800 10,800 8,100 - - - - - - 12K 12K 12K - - - - - - 10,000 10,000 10,000 - - - - - - 10,000 10,000 10,000 - - - - - - ¹ 1 18K - - - - - - - - - - - - 16,600 - - 24K - - - - - - - - - - - - 22,000 - - - - - - - - - - - - - - - - 18,000 - - - - - 23,000 - - - - - - - - - - - - - - - - - - 12K 6K - - - - - - - - - 12,000 6,000 - - - - - - - - - 12,900 6,500 - - - - - - - - - 18K 6K - - - - - - - - - 17,000 5,000 - - - - - - - - - 18,900 6,300 - - - - - - - - - 9K 9K - - - - - - - - - 9,000 9,000 - - - - - - - - - 9,700 9,700 - - - - - - - - - 2 12K 9K - - - - - - - - - 11,000 8,000 - - 18K 9K - - - - - - - - - 16,000 8,000 - - - - - - - - - - - 12,900 9,700 - - - - - 18,300 9,200 - - - - - - - - - - - - - 12K 12K - - - - - - - - - 11,000 11,000 - - - - - - - - - 12,600 12,600 - - - - - - - - - 18K 12K - - - - - - - - - 15,000 10,000 - - - - - - - - - 17,400 11,600 - - - - - - - - - 18K 18K - - - - - - - - - 14,000 14,000 - - - - - - - - - 14,800 14,800 - - - - - - - - - 6K 6K 6K - - - - - - 7,000 7,000 7,000 - - - - - - 8,500 8,500 8,500 - - - - - - MLB030S4M 9K 6K 6K - - - - - - 10,000 7,000 7,000 - - - - - - 11,500 7,700 7,700 - - - - - - MPC030S4M 12K 6K 6K - - - - - - 13,000 6,000 6,000 - - - - - - 13,900 7,000 7,000 - - - - - - 18K 6K 6K - - - - - - 17,000 6,000 6,000 - - - - - - 17,500 5,900 5,900 - - - - - - 9K 9K 6K - - - - - - 10,000 10,000 6,000 - - - - - - 10,500 10,500 7,000 - - - - - - 12K 9K 6K - - - - - - 12,000 9,000 6,000 - - - - - - 12,700 9,500 6,400 - - - - - - 3 18K 9K 6K - - - - - - 16,000 8,000 5,000 - - 12K 12K 6K - - - - - - 11,000 11,000 6,000 - - - - - - 16,100 8,100 5,400 - - - - - 11,700 11,700 5,900 - - - - - - - - 18K 12K 6K - - - - - - 15,000 10,000 5,000 - - - - - - 15,000 10,000 5,000 - - - - - - 9K 9K 9K - - - - - - 9,000 9,000 9,000 - - - - - - 9,500 9,500 9,500 - - - - - - 12K 9K 9K - - - - - - 11,000 9,000 9,000 - - - - - - 11,700 8,800 8,800 - - - - - - 18K 9K 9K - - - - - - 15,000 7,000 7,000 - - - - - - 15,000 7,500 7,500 - - - - - - 12K 12K 9K - - - - - - 11,000 11,000 8,000 - - - - - - 10,800 10,800 8,100 - - - - - - 12K 12K 12K - - - - - - 10,000 10,000 10,000 - - - - - - 10,000 10,000 10,000 - - - - - - 1 One outdoor unit may be matched with one indoor unit for single zone applications. Additional indoor units can be added at a later date for multi-zone applications (if applicable). 43 NOTE - For multi-zone systems, the total capacity of all indoor units must be 66% to 133% of the outdoor unit capacity. Outdoor Unit Model No. Number of Zones #1 Indoor Unit Capacity #2 #3 #4 #5 Nominal Cooling Capacity at Rated System Capacity (Btuh) #1 #2 #3 #4 #5 Nominal Heating Capacity at Rated System Capacity (Btuh) #1 #2 #3 #4 #5 ¹ 1 24K - - - - - - - - - - - - 22,000 - - 30K - - - - - - - - - - - - 26,000 - - - - - - - - - - - - - - - - 23,000 - - - - - 27,000 - - - - - - - - - - - - - - - - - - 18K 6K - - - - - - - - - 18,000 6,000 - - - - - - - - - 19,100 6,400 - - - - - - - - - 24K 6K - - - - - - - - - 22,000 6,000 - - - - - - - - - 24,200 6,100 - - - - - - - - - 18K 9K - - - - - - - - - 17,000 9,000 - - - - - - - - - 18,700 9,400 - - - - - - - - - 24K 9K - - - - - - - - - 21,000 8,000 - - - - - - - - - 23,300 8,800 - - - - - - - - - 2 12K 12K - - - - - - - - - 12,000 12,000 - - 18K 12K - - - - - - - - - 17,000 11,000 - - - - - - - - - - - 12,800 12,800 - - - - - 18,200 12,100 - - - - - - - - - - - - - 24K 12K - - - - - - - - - 20,000 10,000 - - - - - - - - - 22,200 11,100 - - - - - - - - - 18K 18K - - - - - - - - - 15,000 15,000 - - - - - - - - - 16,600 16,600 - - - - - - - - - 24K 18K - - - - - - - - - 18,000 13,000 - - - - - - - - - 19,300 14,500 - - - - - - - - - 24K 24K - - - - - - - - - 15,000 15,000 - - - - - - - - - 15,700 15,700 - - - - - - - - - 12K 6K 6K - - - - - - 12,900 6,500 6,500 - - - - - - 13,600 6,800 6,800 - - - - - - 18K 6K 6K - - - - - - 18,000 6,000 6,000 - - - - - - 18,900 6,300 6,300 - - - - - - 24K 6K 6K - - - - - - 22,000 5,500 5,500 - - - - - - 23,200 5,800 5,800 - - - - - - 12K 9K 6K - - - - - - 12,500 9,300 6,200 - - - - - - 13,100 9,800 6,600 - - - - - - 18K 9K 6K - - - - - - 17,200 8,600 5,700 - - - - - - 18,100 9,100 6,100 - - - - - - 24K 9K 6K - - - - - - 21,100 7,900 5,300 - - - - - - 22,200 8,400 5,600 - - - - - - 12K 12K 6K - - - - - - 12,000 12,000 6,000 - - - - - - 12,600 12,600 6,300 - - - - - - 18K 12K 6K - - - - - - 16,500 11,000 5,500 - - - - - - 17,400 11,600 5,800 - - - - - - 24K 12K 6K - - - - - - 20,100 10,000 5,000 - - - - - - 21,200 10,600 5,300 - - - - - - 18K 18K 6K - - - - - - 15,100 15,100 5,000 - - - - - - 15,900 15,900 5,300 - - - - - - 24K 18K 6K - - - - - - 18,100 13,600 4,500 - - - - - - 19,200 14,400 4,800 - - - - - - 3 9K 9K 9K - - - - - - 9,300 9,300 9,300 - - - - - - 9,800 9,800 9,800 - - - - - - 12K 9K 9K - - - - - - 12,000 9,000 9,000 - - - - - - 12,600 9,500 9,500 - - - - - - 18K 9K 9K - - - - - - 16,500 8,300 8,300 - - - - - - 17,400 8,700 8,700 - - - - - - 24K 9K 9K - - - - - - 20,100 7,500 7,500 - - - - - - 21,200 8,000 8,000 - - - - - - 12K 12K 9K - - - - - - 11,500 11,500 8,600 - - - - - - 12,100 12,100 9,100 - - - - - - 18K 12K 9K - - - - - - 15,800 10,500 7,900 - - - - - - 16,700 11,100 8,400 - - - - - - 24K 12K 9K - - - - - - 19,100 9,600 7,200 - - - - - - 20,200 10,100 7,600 - - - - - - MLB036S4M 18K 18K 9K - - - - - - 14,300 14,300 7,200 - - - - - - 15,200 15,200 7,600 - - - - - - MPC036S4M 12K 12K 12K - - - - - - 11,000 11,000 11,000 - - - - - - 11,600 11,600 11,600 - - - - - - 18K 12K 12K - - - - - - 15,100 10,000 10,000 - - - - - - 15,900 10,600 10,600 - - - - - - 24K 12K 12K - - - - - - 18,100 9,100 9,100 - - - - - - 19,200 9,600 9,600 - - - - - - 18K 18K 12K - - - - - - 13,600 13,600 9,100 - - - - - - 14,400 14,400 9,600 - - - - - - 6K 6K 6K 6K - - - 7,200 7,200 7,200 7,200 - - - 7,700 7,700 7,700 7,700 - - - 9K 6K 6K 6K - - - 10,400 6,900 6,900 6,900 - - - 11,000 7,400 7,400 7,400 - - - 12K 6K 6K 6K - - - 13,200 6,600 6,600 6,600 - - - 14,000 7,000 7,000 7,000 - - - 18K 6K 6K 6K - - - 17,900 6,000 6,000 6,000 - - - 19,000 6,400 6,400 6,400 - - - 24K 6K 6K 6K - - - 21,400 5,300 5,300 5,300 - - - 22,600 5,700 5,700 5,700 - - - 9K 9K 6K 6K - - - 9,900 9,900 6,600 6,600 - - - 10,500 10,500 7,000 7,000 - - - 12K 9K 6K 6K - - - 12,600 9,400 6,300 6,300 - - - 13,300 10,000 6,700 6,700 - - - 18K 9K 6K 6K - - - 17,000 8,500 5,700 5,700 - - - 18,000 9,000 6,000 6,000 - - - 24K 9K 6K 6K - - - 20,100 7,500 5,000 5,000 - - - 21,200 8,000 5,300 5,300 - - - 12K 12K 6K 6K - - - 12,000 12,000 6,000 6,000 - - - 12,700 12,700 6,400 6,400 - - - 18K 12K 6K 6K - - - 16,000 10,700 5,300 5,300 - - - 17,000 11,300 5,700 5,700 - - - 24K 12K 6K 6K - - - 18,900 9,400 4,700 4,700 - - - 19,900 10,000 5,000 5,000 - - - 9K 9K 9K 6K - - - 9,400 9,400 9,400 6,300 - - - 10,000 10,000 10,000 6,700 - - - 4 12K 9K 9K 6K - - - 12,000 9,000 9,000 6,000 - - - 12,700 9,500 9,500 6,400 - - - 18K 9K 9K 6K - - - 16,000 8,000 8,000 5,300 - - - 17,000 8,500 8,500 5,700 - - - 24K 9K 9K 6K - - - 18,900 7,100 7,100 4,700 - - - 19,900 7,500 7,500 5,000 - - - 12K 12K 9K 6K - - - 11,300 11,300 8,500 5,700 - - - 12,000 12,000 9,000 6,000 - - - 18K 12K 9K 6K - - - 15,100 10,100 7,500 5,000 - - - 15,900 10,600 8,000 5,300 - - - 12K 12K 12K 6K - - - 10,700 10,700 10,700 5,300 - - - 11,300 11,300 11,300 5,700 - - - 18K 12K 12K 6K - - - 14,100 9,400 9,400 4,700 - - - 14,900 10,000 10,000 5,000 - - - 9K 9K 9K 9K - - - 9,000 9,000 9,000 9,000 - - - 9,500 9,500 9,500 9,500 - - - 12K 9K 9K 9K - - - 11,300 8,500 8,500 8,500 - - - 12,000 9,000 9,000 9,000 - - - 18K 9K 9K 9K - - - 15,100 7,500 7,500 7,500 - - - 15,900 8,000 8,000 8,000 - - - 12K 12K 9K 9K - - - 10,700 10,700 8,000 8,000 - - - 11,300 11,300 8,500 8,500 - - - 18K 12K 9K 9K - - - 14,100 9,400 7,100 7,100 - - - 14,900 10,000 7,500 7,500 - - - 12K 12K 12K 9K - - - 10,100 10,100 10,100 7,500 - - - 10,600 10,600 10,600 8,000 - - - 12K 12K 12K 12K - - - 9,400 9,400 9,400 9,400 - - - 10,000 10,000 10,000 10,000 - - - 1 One outdoor unit may be matched with one indoor unit for single zone applications. Add4it4ional indoor units can be added at a later date for multi-zone applications (if applicable). NOTE - For multi-zone systems, the total capacity of all indoor units must be 66% to 133% of the outdoor unit capacity. Outdoor Unit Model No. Number of Zones #1 Indoor Unit Capacity #2 #3 #4 #5 Nominal Cooling Capacity at Rated System Capacity (Btuh) #1 #2 #3 #4 #5 Nominal Heating Capacity at Rated System Capacity (Btuh) #1 #2 #3 #4 #5 30K - - - - - - - - - - - - 27,000 - - - - - - - - - - - - 28,000 - - - - - - - - - - - ¹ 1 36K - - - - - - - - - - - - 33,000 - - - - - - - - - - - - 34,000 - - - - - - - - - - - - 24K 9K - - - - - - - - - 24,000 9,000 - - - - - - - - - 25,100 9,400 - - - - - - - - - 30K 9K - - - - - - - - - 29,000 8,000 - - - - - - - - - 30,400 9,100 - - - - - - - - - 24K 12K - - - - - - - - - 23,000 11,000 - - - - - - - - - 24,800 12,400 - - - - - - - - - 30K 12K - - - - - - - - - 28,000 11,000 - - - - - - - - - 29,600 11,900 - - - - - - - - - 2 18K 18K - - - - - - - - - 17,000 17,000 - - - - - - - - - 18,600 18,600 - - - - - - - - - 24K 18K - - - - - - - - - 22,000 17,000 - - - - - - - - - 23,700 17,800 - - - - - - - - - 30K 18K - - - - - - - - - 26,000 15,000 - - - - - - - - - 27,600 16,600 - - - - - - - - - 24K 24K - - - - - - - - - 21,000 21,000 - - - - - - - - - 22,000 22,000 - - - - - - - - - 30K 24K - - - - - - - - - 23,000 18,000 - - - - - - - - - 25,000 20,000 - - - - - - - - - 30K 30K - - - - - - - - - 19,000 19,000 - - - - - - - - - 21,700 21,700 - - - - - - - - - 24K 6K 6K - - - - - - 24,000 6,000 6,000 - - - - - - 25,500 6,400 6,400 - - - - - - 30K 6K 6K - - - - - - 29,000 6,000 6,000 - - - - - - 30,100 6,100 6,100 - - - - - - 24K 9K 6K - - - - - - 23,000 9,000 6,000 - - - - - - 24,800 9,300 6,200 - - - - - - 30K 9K 6K - - - - - - 28,000 8,000 6,000 - - - - - - 29,300 8,800 5,900 - - - - - - 18K 12K 6K - - - - - - 18,000 12,000 6,000 - - - - - - 19,100 12,800 6,400 - - - - - - 24K 12K 6K - - - - - - 23,000 11,000 6,000 - - - - - - 24,100 12,100 6,100 - - - - - - 30K 12K 6K - - - - - - 27,000 11,000 5,000 - - - - - - 28,600 11,500 5,800 - - - - - - 18K 18K 6K - - - - - - 17,000 17,000 6,000 - - - - - - 18,100 18,100 6,100 - - - - - - 24K 18K 6K - - - - - - 22,000 16,000 5,000 - - - - - - 22,900 17,200 5,800 - - - - - - 30K 18K 6K - - - - - - 26,000 15,000 5,000 - - - - - - 27,300 16,400 5,500 - - - - - - MLB048S4M MPC048S4M 24K 24K 6K - - - - - - 20,000 20,000 5,000 - - - - - - 21,800 21,800 5,500 - - - - - 30K 24K 6K - - - - - - 24,000 19,000 5,000 - - - - - - 26,200 21,000 5,300 - - - - - - 18K 9K 9K - - - - - - 18,000 9,000 9,000 - - - - - - 19,100 9,600 9,600 - - - - - - 24K 9K 9K - - - - - - 23,000 9,000 9,000 - - - - - - 24,100 9,100 9,100 - - - - - - 30K 9K 9K - - - - - - 27,000 8,000 8,000 - - - - - - 28,600 8,600 8,600 - - - - - - 12K 12K 9K - - - - - - 12,000 12,000 9,000 - - - - - - 13,200 13,200 9,900 - - - - - - 3 18K 12K 9K - - - - - - 18,000 12,000 9,000 - - - - - - 18,600 12,400 9,300 - - - - - 24K 12K 9K - - - - - - 22,000 11,000 8,000 - - - - - - 23,500 11,800 8,800 - - - - - - 30K 12K 9K - - - - - - 26,000 11,000 8,000 - - - - - - 27,900 11,200 8,400 - - - - - - 18K 18K 9K - - - - - - 17,000 17,000 8,000 - - - - - - 17,600 17,600 8,800 - - - - - - 24K 18K 9K - - - - - - 21,000 16,000 8,000 - - - - - - 22,300 16,800 8,400 - - - - - - 30K 18K 9K - - - - - - 25,000 15,000 7,000 - - - - - - 26,700 16,100 8,100 - - - - - - 24K 24K 9K - - - - - - 20,000 20,000 7,000 - - - - - - 21,400 21,400 8,100 - - - - - - 30K 24K 9K - - - - - - 23,000 19,000 7,000 - - - - - - 25,700 20,600 7,800 - - - - - - 12K 12K 12K - - - - - - 12,000 12,000 12,000 - - - - - - 12,800 12,800 12,800 - - - - - - 18K 12K 12K - - - - - - 17,000 11,000 11,000 - - - - - - 18,100 12,100 12,100 - - - - - - 24K 12K 12K - - - - - - 22,000 11,000 11,000 - - - - - - 22,900 11,500 11,500 - - - - - - 30K 12K 12K - - - - - - 26,000 10,000 10,000 - - - - - - 27,300 10,900 10,900 - - - - - - 18K 18K 12K - - - - - - 16,000 16,000 11,000 - - - - - - 17,200 17,200 11,500 - - - - - - 24K 18K 12K - - - - - - 20,000 15,000 10,000 - - - - - - 21,800 16,400 10,900 - - - - - - 30K 18K 12K - - - - - - 24,000 14,000 10,000 - - - - - - 26,200 15,700 10,500 - - - - - - 24K 24K 12K - - - - - - 19,000 19,000 10,000 - - - - - - 21,000 21,000 10,500 - - - - - - 18K 18K 18K - - - - - - 15,000 15,000 15,000 - - - - - - 16,400 16,400 16,400 - - - - - - 24K 18K 18K - - - - - - 19,000 14,000 14,000 - - - - - - 21,000 15,700 15,700 - - - - - - 1 One outdoor unit may be matched with one indoor unit for single zone applications. Additional indoor units can be added at a later date for multi-zone applications (if applicable). 45 NOTE - For multi-zone systems, the total capacity of all indoor units must be 66% to 133% of the outdoor unit capacity. Outdoor Unit Model No. Number of Zones #1 Indoor Unit Capacity #2 #3 #4 #5 Nominal Cooling Capacity at Rated System Capacity (Btuh) #1 #2 #3 #4 #5 Nominal Heating Capacity at Rated System Capacity (Btuh) #1 #2 #3 #4 #5 18K 6K 6K 6K - - - 18,000 6,000 6,000 6,000 - - - - - - 19,400 6,500 6,500 6,500 24K 6K 6K 6K - - - 24,000 6,000 6,000 6,000 - - - - - - 25,100 6,300 6,300 6,300 30K 6K 6K 6K - - - 29,000 6,000 6,000 6,000 - - - - - - 30,100 6,100 6,100 6,100 18K 9K 6K 6K - - - 18,000 9,000 6,000 6,000 - - - - - - 19,100 9,600 6,400 6,400 24K 9K 6K 6K - - - 24,000 9,000 6,000 6,000 - - - - - - 24,600 9,300 6,200 6,200 30K 9K 6K 6K - - - 28,000 8,000 6,000 6,000 - - - - - - 29,200 8,800 5,900 5,900 12K 12K 6K 6K - - - 12,000 12,000 6,000 6,000 - - - - - - 12,900 12,900 6,500 6,500 18K 12K 6K 6K - - - 18,000 12,000 6,000 6,000 - - - - - - 18,900 12,600 6,300 6,300 24K 12K 6K 6K - - - 23,000 11,000 6,000 6,000 - - - - - - 24,100 12,100 6,100 6,100 30K 12K 6K 6K - - - 27,000 11,000 5,000 5,000 - - - - - - 28,200 11,300 5,700 5,700 18K 18K 6K 6K - - - 17,000 17,000 6,000 6,000 - - - - - - 18,100 18,100 6,100 6,100 24K 18K 6K 6K - - - 22,000 16,000 5,000 5,000 - - - - - - 22,600 16,900 5,700 5,700 30K 18K 6K 6K - - - 25,000 15,000 5,000 5,000 - - - - - - 25,800 15,500 5,200 5,200 24K 24K 6K 6K - - - 20,000 20,000 5,000 5,000 - - - - - - 20,700 20,700 5,200 5,200 12K 9K 9K 6K - - - 12,000 9,000 9,000 6,000 - - - - - - 12,900 9,700 9,700 6,500 18K 9K 9K 6K - - - 18,000 9,000 9,000 6,000 - - - - - - 18,900 9,500 9,500 6,300 24K 9K 9K 6K - - - 23,000 9,000 9,000 6,000 - - - - - - 24,100 9,100 9,100 6,100 30K 9K 9K 6K - - - 27,000 8,000 8,000 5,000 - - - - - - 28,200 8,500 8,500 5,700 12K 12K 9K 6K - - - 12,000 12,000 9,000 6,000 - - - - - - 12,800 12,800 9,600 6,400 MLB048S4M MPC048S4M 4 18K 12K 9K 6K - - - 18,000 12,000 9,000 6,000 - - - - - - 18,500 12,300 9,300 6,200 24K 12K 9K 6K - - - 22,000 11,000 8,000 6,000 - - - - - - 23,400 11,700 8,800 5,900 30K 12K 9K 6K - - - 26,000 10,000 8,000 5,000 - - - - - - 27,100 10,900 8,200 5,500 18K 18K 9K 6K - - - 17,000 17,000 8,000 6,000 - - - - - - 17,500 17,500 8,800 5,900 24K 18K 9K 6K - - - 21,000 16,000 8,000 5,000 - - - - - - 21,700 16,300 8,200 5,500 30K 18K 9K 6K - - - 24,000 14,000 7,000 5,000 - - - - - - 24,500 14,700 7,400 4,900 12K 12K 12K 6K - - - 12,000 12,000 12,000 6,000 - - - - - - 12,600 12,600 12,600 6,300 18K 12K 12K 6K - - - 17,000 11,000 11,000 6,000 - - - - - - 18,100 12,100 12,100 6,100 24K 12K 12K 6K - - - 22,000 11,000 11,000 5,000 - - - - - - 22,600 11,300 11,300 5,700 30K 12K 12K 6K - - - 25,000 10,000 10,000 5,000 - - - - - - 25,800 10,400 10,400 5,200 18K 18K 12K 6K - - - 16,000 16,000 11,000 5,000 - - - - - - 16,900 16,900 11,300 5,700 24K 18K 12K 6K - - - 20,000 15,000 10,000 5,000 - - - - - - 20,700 15,500 10,400 5,200 9K 9K 9K 9K - - - 9,000 9,000 9,000 9,000 - - - - - - 9,700 9,700 9,700 9,700 12K 9K 9K 9K - - - 12,000 9,000 9,000 9,000 - - - - - - 12,800 9,600 9,600 9,600 18K 9K 9K 9K - - - 18,000 9,000 9,000 9,000 - - - - - - 18,500 9,300 9,300 9,300 24K 9K 9K 9K - - - 22,000 8,000 8,000 8,000 - - - - - - 23,400 8,800 8,800 8,800 30K 9K 9K 9K - - - 26,000 8,000 8,000 8,000 - - - - - - 27,100 8,200 8,200 8,200 12K 12K 9K 9K - - - 12,000 12,000 9,000 9,000 - - - - - - 12,600 12,600 9,500 9,500 18K 12K 9K 9K - - - 17,000 11,000 9,000 9,000 - - - - - - 18,100 12,100 9,100 9,100 24K 12K 9K 9K - - - 22,000 11,000 8,000 8,000 - - - - - - 22,600 11,300 8,500 8,500 1 One outdoor unit may be matched with one indoor unit for single zone applications. Additional indoor units can be added at a later date for multi-zone applications (if applicable). 46 NOTE - For multi-zone systems, the total capacity of all indoor units must be 66% to 133% of the outdoor unit capacity. Outdoor Unit Model No. Number of Zones #1 Indoor Unit Capacity #2 #3 #4 #5 Nominal Cooling Capacity at Rated System Capacity (Btuh) #1 #2 #3 #4 #5 Nominal Heating Capacity at Rated System Capacity (Btuh) #1 #2 #3 #4 #5 30K 12K 9K 9K - - - 25,000 10,000 7,000 7,000 - - - 25,800 10,400 7,800 7,800 - - - 18K 18K 9K 9K - - - 16,000 16,000 8,000 8,000 - - - 16,900 16,900 8,500 8,500 - - - 24K 18K 9K 9K - - - 20,000 15,000 7,000 7,000 - - - 20,700 15,500 7,800 7,800 - - - 12K 12K 12K 9K - - - 12,000 12,000 12,000 9,000 - - - 12,300 12,300 12,300 9,300 - - - 18K 12K 12K 9K - - - 17,000 11,000 11,000 8,000 - - - 17,500 11,700 11,700 8,800 - - - 24K 12K 12K 9K - - - 21,000 10,000 10,000 8,000 - - - 21,700 10,900 10,900 8,200 - - - 4 30K 12K 12K 9K - - - 24,000 9,000 9,000 7,000 - - - 24,500 9,800 9,800 7,400 - - - 18K 18K 12K 9K - - - 16,000 16,000 10,000 8,000 - - - 16,300 16,300 10,900 8,200 - - - 24K 18K 12K 9K - - - 19,000 14,000 9,000 7,000 - - - 19,600 14,700 9,800 7,400 - - - 12K 12K 12K 12K - - - 11,000 11,000 11,000 11,000 - - - 12,100 12,100 12,100 12,100 - - - 18K 12K 12K 12K - - - 16,000 11,000 11,000 11,000 - - - 16,900 11,300 11,300 11,300 - - - 24K 12K 12K 12K - - - 20,000 10,000 10,000 10,000 - - - 20,700 10,400 10,400 10,400 - - - 18K 18K 12K 12K - - - 15,000 15,000 10,000 10,000 - - - 15,500 15,500 10,400 10,400 - - - 9K 6K 6K 6K 6K 9,000 6,000 6,000 6,000 6,000 10,000 7,000 7,000 7,000 7,000 12K 6K 6K 6K 6K 12,000 6,000 6,000 6,000 6,000 13,000 6,000 6,000 6,000 6,000 18K 6K 6K 6K 6K 18,000 6,000 6,000 6,000 6,000 19,000 6,000 6,000 6,000 6,000 24K 6K 6K 6K 6K 24,000 6,000 6,000 6,000 6,000 25,000 6,000 6,000 6,000 6,000 30K 6K 6K 6K 6K 28,000 6,000 6,000 6,000 6,000 29,000 5,000 5,000 5,000 5,000 9K 9K 6K 6K 6K 9,000 9,000 6,000 6,000 6,000 10,000 10,000 6,000 6,000 6,000 12K 9K 6K 6K 6K 12,000 9,000 6,000 6,000 6,000 13,000 10,000 6,000 6,000 6,000 MLB048S4M MPC048S4M 18K 9K 6K 6K 6K 18,000 9,000 6,000 6,000 6,000 19,000 9,000 6,000 6,000 6,000 24K 9K 6K 6K 6K 23,000 9,000 6,000 6,000 6,000 24,000 9,000 6,000 6,000 6,000 30K 9K 6K 6K 6K 27,000 8,000 5,000 5,000 5,000 28,000 8,000 5,000 5,000 5,000 12K 12K 6K 6K 6K 12,000 12,000 6,000 6,000 6,000 13,000 13,000 6,000 6,000 6,000 18K 12K 6K 6K 6K 18,000 12,000 6,000 6,000 6,000 18,000 12,000 6,000 6,000 6,000 24K 12K 6K 6K 6K 22,000 11,000 6,000 6,000 6,000 23,000 11,000 5,000 5,000 5,000 30K 12K 6K 6K 6K 26,000 10,000 5,000 5,000 5,000 27,000 10,000 5,000 5,000 5,000 18K 18K 6K 6K 6K 17,000 17,000 6,000 6,000 6,000 17,000 17,000 5,000 5,000 5,000 5 24K 18K 6K 6K 6K 21,000 16,000 5,000 5,000 5,000 21,000 16,000 5,000 5,000 5,000 9K 9K 9K 6K 6K 9,000 9,000 9,000 6,000 6,000 10,000 10,000 10,000 6,000 6,000 12K 9K 9K 6K 6K 12,000 9,000 9,000 6,000 6,000 13,000 9,000 9,000 6,000 6,000 18K 9K 9K 6K 6K 18,000 9,000 9,000 6,000 6,000 18,000 9,000 9,000 6,000 6,000 24K 9K 9K 6K 6K 22,000 8,000 8,000 6,000 6,000 23,000 8,000 8,000 5,000 5,000 30K 9K 9K 6K 6K 26,000 8,000 8,000 5,000 5,000 27,000 8,000 8,000 5,000 5,000 12K 12K 9K 6K 6K 12,000 12,000 9,000 6,000 6,000 12,000 12,000 9,000 6,000 6,000 18K 12K 9K 6K 6K 17,000 12,000 9,000 6,000 6,000 18,000 12,000 9,000 6,000 6,000 24K 12K 9K 6K 6K 22,000 11,000 8,000 5,000 5,000 22,000 11,000 8,000 5,000 5,000 30K 12K 9K 6K 6K 24,000 10,000 7,000 5,000 5,000 26,000 10,000 7,000 5,000 5,000 18K 18K 9K 6K 6K 16,000 16,000 8,000 5,000 5,000 17,000 17,000 8,000 5,000 5,000 24K 18K 9K 6K 6K 20,000 15,000 7,000 5,000 5,000 21,000 15,000 7,000 5,000 5,000 12K 12K 12K 6K 6K 12,000 12,000 12,000 6,000 6,000 12,000 12,000 12,000 6,000 6,000 18K 12K 12K 6K 6K 17,000 11,000 11,000 6,000 6,000 17,000 11,000 11,000 5,000 5,000 24K 12K 12K 6K 6K 21,000 10,000 10,000 5,000 5,000 21,000 10,000 10,000 5,000 5,000 1 One outdoor unit may be matched with one indoor unit for single zone applications. Additional indoor units can be added at a later date for multi-zone applications (if applicable). 47 NOTE - For multi-zone systems, the total capacity of all indoor units must be 66% to 133% of the outdoor unit capacity. Outdoor Unit Model No. Number of Zones #1 Indoor Unit Capacity #2 #3 #4 #5 Nominal Cooling Capacity at Rated System Capacity (Btuh) #1 #2 #3 #4 #5 Nominal Heating Capacity at Rated System Capacity (Btuh) #1 #2 #3 #4 #5 18K 18K 12K 6K 6K 16,000 16,000 10,000 5,000 5,000 16,000 16,000 10,000 5,000 5,000 9K 9K 9K 9K 6K 9,000 9,000 9,000 9,000 6,000 9,000 9,000 9,000 9,000 6,000 12K 9K 9K 9K 6K 12,000 9,000 9,000 9,000 6,000 12,000 9,000 9,000 9,000 6,000 18K 9K 9K 9K 6K 17,000 9,000 9,000 9,000 6,000 18,000 9,000 9,000 9,000 6,000 24K 9K 9K 9K 6K 22,000 8,000 8,000 8,000 5,000 22,000 8,000 8,000 8,000 5,000 30K 9K 9K 9K 6K 24,000 7,000 7,000 7,000 5,000 26,000 7,000 7,000 7,000 5,000 12K 12K 9K 9K 6K 12,000 12,000 9,000 9,000 6,000 12,000 12,000 9,000 9,000 6,000 18K 12K 9K 9K 6K 17,000 11,000 8,000 8,000 6,000 17,000 11,000 8,000 8,000 5,000 24K 12K 9K 9K 6K 21,000 10,000 8,000 8,000 5,000 21,000 10,000 8,000 8,000 5,000 18K 18K 9K 9K 6K 16,000 16,000 8,000 8,000 5,000 16,000 16,000 8,000 8,000 5,000 12K 12K 12K 9K 6K 12,000 12,000 12,000 9,000 6,000 12,000 12,000 12,000 9,000 6,000 18K 12K 12K 9K 6K 16,000 11,000 11,000 8,000 5,000 17,000 11,000 11,000 8,000 5,000 MLB048S4M MPC048S4M 5 24K 12K 12K 9K 6K 20,000 10,000 10,000 7,000 5,000 21,000 10,000 10,000 7,000 5,000 12K 12K 12K 12K 6K 11,000 11,000 11,000 11,000 6,000 11,000 11,000 11,000 11,000 5,000 18K 12K 12K 12K 6K 16,000 10,000 10,000 10,000 5,000 16,000 10,000 10,000 10,000 5,000 9K 9K 9K 9K 9K 9,000 9,000 9,000 9,000 9,000 9500 9500 9500 9500 9500 12K 9K 9K 9K 9K 12,000 9,000 9,000 9,000 9,000 12,000 9,000 9,000 9,000 9,000 18K 9K 9K 9K 9K 17,000 8,000 8,000 8,000 8,000 17,000 8,000 8,000 8,000 8,000 24K 9K 9K 9K 9K 21,000 8,000 8,000 8,000 8,000 21,000 8,000 8,000 8,000 8,000 12K 12K 9K 9K 9K 12,000 12,000 9,000 9,000 9,000 12,000 12,000 9,000 9,000 9,000 18K 12K 9K 9K 9K 16,000 11,000 8,000 8,000 8,000 17,000 11,000 8,000 8,000 8,000 24K 12K 9K 9K 9K 20,000 10,000 7,000 7,000 7,000 21,000 10,000 7,000 7,000 7,000 12K 12K 12K 9K 9K 11,000 11,000 11,000 8,000 8,000 11,000 11,000 11,000 8,000 8,000 18K 12K 12K 9K 9K 16,000 10,000 10,000 8,000 8,000 16,000 10,000 10,000 8,000 8,000 12K 12K 12K 12K 9K 11,000 11,000 11,000 11,000 8,000 11,000 11,000 11,000 11,000 8,000 12K 12K 12K 12K 12K 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 1 One outdoor unit may be matched with one indoor unit for single zone applications. Additional indoor units can be added at a later date for multi-zone applications (if applicable). 48 8. Refrigeration Pipe Work 8.1. MPC Single-Zone Refrigerant Cycle Diagram INDOOR OUTDOOR LIQUID SIDE Electronic CAPILIARY TUBE expansion valve CAPILIARY TUBE 2-WAY VALVE T3 Condenser temp. sensor Indoor Coil T1 Room temp. sensor T4 Ambient temp. sensor Outdoor Coil T2 Evaporator temp. sensor GAS SIDE 3-WAY VALVE Accumulator Compressor 4-WAY VALVE T5 Discharge temp. sensor COOLING HEATING 8.2. MPC Two-Zone Refrigerant Cycle Diagram INDOOR LIQUID VALVE A LIQUID VALVE B OUTDOOR EXV A CAPILIARY A EXV B CAPILIARY B CHECK VALVE CAPILIARY TUBE T3 Condenser temp. sensor Indoor Coil T1 Room temp. sensor T4 Ambient temp. sensor Outdoor Coil T2 Evaporator temp. sensor middle GAS VALVE A T2B-A Evaporator temp. sensor outlet GAS VALVE B T2B-B 4-WAY VALVE Accumulator Compressor T5 Discharge temp. sensor COOLING HEATING 49 8.3. MPC Three-Zone Refrigerant Cycle Diagram INDOOR LIQUID VALVE A EXV A CAPILIARY A OUTDOOR LIQUID VALVE B EXV B CAPILIARY B CHECK VALVE LIQUID VALVE C EXV C CAPILIARY C CAPILIARY TUBE T3 Condenser temp. sensor Indoor Coil T1 Room temp. sensor T2 Evaporator temp. sensor middle T4 Ambient temp. sensor Outdoor Coil GAS VALVE A T2B-A Evaporator temp. sensor outlet GAS VALVE B GAS VALVE C T2B-B T2B-C Accumulator Compressor 4-WAY VALVE T5 Discharge temp. sensor COOLING HEATING 8.4. MPC Four-Zone Refrigerant Cycle Diagram INDOOR LIQUID VALVE A OUTDOOR EXV A CAPILIARY A LIQUID VALVE B LIQUID VALVE C LIQUID VALVE D EXV B CAPILIARY B EXV C CAPILIARY C CHECK VALVE EXV D CAPILIARY D CAPILIARY TUBE T3 Condenser temp. sensor Indoor Coil T1 Room temp. sensor T2 Evaporator temp. sensor middle T4 Ambient temp. sensor GAS VALVE A T2B-A Evaporator temp. sensor outlet GAS VALVE B GAS VALVE C GAS VALVE D T2B-B T2B-C Accumulator T2B-D Low pressure switch Compressor 4-WAY VALVE High pressure switch T5 Discharge temp. sensor Outdoor Coil COOLING HEATING 50 8.5. MPC Five-Zone Refrigerant Cycle Diagram INDOOR LIQUID VALVE A EXV A CAPILIARY A OUTDOOR LIQUID VALVE B EXV B CAPILIARY B LIQUID VALVE C EXV C CAPILIARY C CHECK VALVE LIQUID VALVE D LIQUID VALVE E EXV D CAPILIARY D EXV E CAPILIARY E CAPILIARY TUBE Indoor Coil T1 Room temp. sensor T2 Evaporator temp. sensor GAS VALVE A GAS VALVE B GAS VALVE C GAS VALVE D GAS VALVE E T4 Ambient temp. sensor 4-WAY VALVE Accumulator Low pressure switch Compressor High pressure switch T5 Discharge temp. sensor T3 Condenser temp. sensor Outdoor Coil COOLING HEATING 51 8.6. Single-Zone Piping Limitations INDOOR UNIT Maximum Line Set Length Maximum Elevation - Outdooor Unit BELOW Indoor Unit OUTDOOR UNIT Minimum Line Set Length - 10 ft. (3m) Outside Unit BELOW Indoor Unit Maximum Line Set Length INDOOR UNIT Minimum Line Set Length - 10 ft. (3m) OUTDOOR UNIT Maximum Elevation - Outdooor Unit ABOVE Indoor Unit Outside Unit ABOVE Indoor Unit IMPORTANT Do not allow for excess length of line sets to be left rolled up as part of the required distance, or in general. This will also cause additional performance issues. NOTE: Note: Each system size has a line set length and vertical elevation parameters. System Size (KBtu) Line Set Diameters (in.) Liquid Gas 018 1/4 1/2 024/30 3/8 5/8 036/048/060 3/8 5/8 8.7. Multi-Zone Piping Limitations Maximum Elevation Outdoor Unit BELOW Indoor Unit ft. (m) 66 ft. (20 m) 82 ft. (25 m) 98 ft. (30 m) Maximum Elevation Outdoor Unit ABOVE Indoor Unit ft. (m) Maximum Line Set Length ft. (m) 66 ft. (20 m) 82 ft. (25 m) 98 ft. (30 m) 98 ft. (30 m) 164 ft. (50 m) 213 ft. (65 m) CAUTION In order to avoid injury, take proper precaution when lifting heavy objects. IMPORTANT Pipe and wire to each zone separately. Test each indoor unit separately to ensure proper operation. Connecting Multiple Capacity Indoor Units · The largest capacity indoor unit must be connected to the lowest refrigerant connection ports on the outdoor unit. · The 24,000 Btu indoor unit is only allowed to be connected to MPC036S4M, MPC048S4M, MLB036S4M and MLB048S4M outdoor units. NOTE: Each indoor unit must be piped AND wired to the correct zone piping connections and wiring terminals. Make sure that indoor unit A is wired to the zone A terminal block and connected to the appropriate refrigerant pipe connections. Connecting Multiple Capacity Indoor Units C(1/4in) C(3/8in) B(1/4in) B(3/8in) A(1/4in) A(1/2in) Four-Zone System Example Shown Above Pipe and Wire Each Zone Separately outdoor wire A BCD pipe Unit D Unit C L4(ft) L3(ft) Unit B L2(ft) indoor Unit D Unit C Unit B Unit A L1(ft) Unit A 52 INDOOR UNIT INDOOR UNIT INDOOR UNIT NOTE - Minimum Line Set Length - 10 ft. (3 m) per Indoor Unit NOTE - Maximum Line Set Length Includes ALL piping in measurement Maximum Line Set Furthest Indoor Unit INDOOR UNIT Maximum Elevation - 49 ft. Outdoor Unit (15 m) BELOW Indoor Units OUTDOOR UNIT NOTE - Maximum Difference in Elevation Between Indoor Units - 33 ft. (10 m). Maximum Elevation Outdoor Unit ABOVE Indoor Unit 49 ft. (15 m) INDOOR UNIT Figure 20. MPC and MLB Line Set Elevations Outdoor Unit Model No. Maximum Number of Indoor Units/Zones MPC024S4M Three MLB030S4M / MPC030S4M Three Indoor Unit Connections (3) 1/4 liq. (3) 3/8 gas (3) 1/4 liq. (3) 3/8 gas Maximum Pipe Length for all Rooms 197 ft. (60 m) 197 ft. (60 m) Maximum Line Set Length - Furthest Indoor Unit 98 ft. (30 m) 98 ft. (30 m) NOTE: Refer to for correct refrigerant line adapters furnished with outdoor units. MLB036S4M / MPC036S4M Four (4) 1/4 liq. (3) 3/8 gas (1) 1/2 gas 262 ft. (80 m) 115 ft. (35 m) MLB048S4M / MPC048S4M Five (5) 1/4 liq. (3) 3/8 gas (2) 1/2 gas 262 ft. (80 m) 115 ft. (35 m) 53 9. Master Valves (3 to 5 Zone Outdoor Units) · 3-zone, 4-zone and 5-zone (not 2-zone) multi-zone units have a master valve on each refrigerant line. · The master valve controls refrigerant to all of the zonesupply valves. · Open the master valves prior to opening the zonesupply valves. Liquid Line Master Valve Vapor Line Master Valve 10. MLB and MPC Multi-Zone Outdoor Unit Connections and Line Set Usage MPC024S4M Number of Zones and Outdoor Unit Connection Sizes NOTE - Letter = Indoor Unit Zone Connection on Outdoor Unit Zone 1 (A) Zone 2 (B) Zone 3 (C) 1/4 in. liq + 3/8 in. gas 1/4 in. liq + 3/8 in. gas 1/4 in. liq + 3/8 in. gas 012 006 - - - 018 006 - - - 009 009 - - - 012 009 - - - 018 009 - - - 012 012 - - - 018 012 - - - 018 018 - - - 006 006 006 009 006 006 012 006 006 018 006 006 54 009 009 006 012 009 006 018 009 006 012 012 006 018 012 006 009 009 009 012 009 009 018 009 009 012 012 009 012 012 012 LEGEND: CLEAR = No adaptors required. GRAY = 3/8 x 1/2 in. gas pipe adaptor is required for line set connection to outdoor unit (furnished with outdoor unit). MLB030S4M and MPC030S4M Number of Zones and Outdoor Unit Connection Sizes NOTE - Letter = Indoor Unit Zone Connection on Outdoor Unit Zone 1 (A) Zone 2 (B) Zone 3 (C) 1/4 in. liq + 3/8 in. gas 1/4 in. liq + 3/8 in. gas 1/4 in. liq + 3/8 in. gas 012 006 - - - 018 006 - - - 009 009 - - - 012 009 - - - 018 009 - - - 012 012 - - - 018 012 - - - 018 018 - - - 006 006 006 009 006 006 012 006 006 018 006 006 009 009 006 012 009 006 018 009 006 012 012 006 018 012 006 009 009 009 012 009 009 018 009 009 012 012 009 012 012 012 LEGEND: CLEAR = No adaptors required. GRAY = 3/8 x 1/2 in. gas pipe adaptor is required for line set connection to outdoor unit (furnished with outdoor unit). 55 MLB036S4M / MPC036S4M Number of Zones and Outdoor Unit Connection Sizes NOTE - Letter = Indoor Unit Zone Connection on Outdoor Unit Zone 1 (A) Zone 2 (B) Zone 3 (C) Zone 4 (D) 1/4 in. liq + 1/2 in. gas 1/4 in. liq + 3/8 in. gas 1/4 in. liq + 3/8 in. gas 1/4 in. liq + 3/8 in. gas 018 006 - - - - - - 024 006 - - - - - - 018 009 - - - - - - 024 009 - - - - - - 012 012 - - - - - - 018 012 - - - - - - 024 012 - - - - - - 018 018 - - - - - - 024 018 - - - - - - 024 ¹ 024 - - - - - - 012 006 006 - - - 018 006 006 - - - 024 006 006 - - - 012 009 006 - - - 018 009 006 - - - 024 009 006 - - - 012 012 006 - - - 018 012 006 - - - 024 012 006 - - - 018 018 006 - - - 024 018 006 - - - 009 009 009 - - - 012 009 009 - - - 018 009 009 - - - 024 009 009 - - - 012 012 009 - - - 018 012 009 - - - 024 012 009 - - - 018 018 009 - - - 012 012 012 - - - 018 012 012 - - - 024 012 012 - - - 018 018 012 - - - 006 006 006 006 009 006 006 006 012 006 006 006 018 006 006 006 024 006 006 006 009 009 006 006 LEGEND: CLEAR = No adaptors required. GRAY = 3/8 x 1/2 in. gas pipe adaptor is required for line set connection to outdoor unit (furnished with outdoor unit). BLACK = 1/4 x 3/8 in. liquid pipe adaptor is required for line set connection to the 036 outdoor unit (furnished with outdoor unit). 1/2 x 5/8 in. gas pipe adaptor is required for line set connection to the 036 outdoor unit (furnished with outdoor unit). 1 1/4 x 3/8 in. liquid pipe adaptor is required for line set connection to the 036 outdoor unit (furnished with outdoor unit). 3/8 x 5/8 in. gas pipe adaptor is required for line set connection to the 036 outdoor unit (not furnished). 56 MLB036S4M / MPC036S4M Number of Zones and Outdoor Unit Connection Sizes NOTE - Letter = Indoor Unit Zone Connection on Outdoor Unit Zone 1 (A) Zone 2 (B) Zone 3 (C) Zone 4 (D) 1/4 in. liq + 1/2 in. gas 1/4 in. liq + 3/8 in. gas 1/4 in. liq + 3/8 in. gas 1/4 in. liq + 3/8 in. gas 012 009 006 006 018 009 006 006 024 009 006 006 012 012 006 006 018 012 006 006 024 012 006 006 009 009 009 006 012 009 009 006 018 009 009 006 024 009 009 006 012 012 009 006 018 012 009 006 012 012 012 006 018 012 012 006 009 009 009 009 012 009 009 009 018 009 009 009 012 012 009 009 018 012 009 009 012 012 012 009 012 012 012 012 LEGEND: CLEAR = No adaptors required. GRAY = 3/8 x 1/2 in. gas pipe adaptor is required for line set connection to outdoor unit (furnished with outdoor unit). BLACK = 1/4 x 3/8 in. liquid pipe adaptor is required for line set connection to the 036 outdoor unit (furnished with outdoor unit). 1/2 x 5/8 in. gas pipe adaptor is required for line set connection to the 036 outdoor unit (furnished with outdoor unit). 1 1/4 x 3/8 in. liquid pipe adaptor is required for line set connection to the 036 outdoor unit (furnished with outdoor unit). 3/8 x 5/8 in. gas pipe adaptor is required for line set connection to the 036 outdoor unit (not furnished). 57 MLB048S4M / MPC048S4M Number of Zones and Outdoor Unit Connection Sizes NOTE - Letter = Indoor Unit Zone Connection on Outdoor Unit Zone 1 (A) Zone 2 (B) Zone 3 (C) Zone 4 (D) 1/4 in. liq + 1/2 in. gas 1/4 in. liq + 1/2 in. gas 1/4 in. liq + 3/8 in. gas 1/4 in. liq + 3/8 in. gas 024 009 - - - - - - 030 009 - - - - - - 024 012 - - - - - - 030 012 - - - - - - 018 018 - - - - - - 024 018 - - - - - - 024 024 - - - - - - 030 018 - - - - - - 030 024 - - - - - - 030 030 - - - - - - 024 006 006 - - - 030 006 006 - - - 024 009 006 - - - 030 009 006 - - - 018 012 006 - - - 024 012 006 - - - 030 012 006 - - - 018 018 006 - - - 024 018 006 - - - 030 018 006 - - - 024 024 006 - - - 030 024 006 - - - 018 009 009 - - - 024 009 009 - - - 030 009 009 - - - 012 012 009 - - - 018 012 009 - - - 024 012 009 - - - 030 012 009 - - - 018 018 009 - - - 024 018 009 - - - 030 018 009 - - - 024 024 009 - - - 030 024 009 - - - 012 012 012 - - - 018 012 012 - - - 024 012 012 - - - 030 012 012 - - - 018 018 012 - - - 024 018 012 - - - 030 018 012 - - - LEGEND: CLEAR = No adaptors required. GRAY = 3/8 x 1/2 in. gas pipe adaptor is required for line set connection to outdoor unit (furnished with outdoor unit). BLACK = 1/4 x 3/8 in. liquid pipe adaptor is required for line set connection to the 048 outdoor unit (furnished with outdoor unit). 1/2 x 5/8 in. gas pipe adaptor is required for line set connection to the 048 outdoor unit (furnished with outdoor unit). 58 Zone 5 (E) 1/4 in. liq + 3/8 in. gas - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - MLB048S4M / MPC048S4M Number of Zones and Outdoor Unit Connection Sizes NOTE - Letter = Indoor Unit Zone Connection on Outdoor Unit Zone 1 (A) Zone 2 (B) Zone 3 (C) Zone 4 (D) 1/4 in. liq + 1/2 in. gas 1/4 in. liq + 1/2 in. gas 1/4 in. liq + 3/8 in. gas 1/4 in. liq + 3/8 in. gas 024 024 012 - - - 018 018 018 - - - 024 018 018 - - - 018 006 006 006 024 006 006 006 030 006 006 006 018 009 006 006 024 009 006 006 030 009 006 006 012 012 006 006 018 012 006 006 024 012 006 006 030 012 006 006 018 018 006 006 024 018 006 006 030 018 006 006 024 024 006 006 012 009 009 006 018 009 009 006 024 009 009 006 030 009 009 006 012 012 009 006 018 012 009 006 024 012 009 006 030 012 009 006 018 018 009 006 024 018 009 006 030 018 009 006 012 012 012 006 018 012 012 006 024 012 012 006 030 012 012 006 018 018 012 006 024 018 012 006 009 009 009 009 012 009 009 009 018 009 009 009 024 009 009 009 030 009 009 009 012 012 009 009 018 012 009 009 LEGEND: CLEAR = No adaptors required. GRAY = 3/8 x 1/2 in. gas pipe adaptor is required for line set connection to outdoor unit (furnished with outdoor unit). BLACK = 1/4 x 3/8 in. liquid pipe adaptor is required for line set connection to the 048 outdoor unit (furnished with outdoor unit). 1/2 x 5/8 in. gas pipe adaptor is required for line set connection to the 048 outdoor unit (furnished with outdoor unit). 59 Zone 5 (E) 1/4 in. liq + 3/8 in. gas - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - MLB048S4M / MPC048S4M Number of Zones and Outdoor Unit Connection Sizes NOTE - Letter = Indoor Unit Zone Connection on Outdoor Unit Zone 1 (A) Zone 2 (B) Zone 3 (C) Zone 4 (D) 1/4 in. liq + 1/2 in. gas 1/4 in. liq + 1/2 in. gas 1/4 in. liq + 3/8 in. gas 1/4 in. liq + 3/8 in. gas 024 012 009 009 030 012 009 009 018 018 009 009 024 018 009 009 012 012 012 009 018 012 012 009 024 012 012 009 030 012 012 009 018 018 012 009 024 018 012 009 012 012 012 012 018 012 012 012 024 012 012 012 018 018 012 012 009 006 006 006 012 006 006 006 018 006 006 006 024 006 006 006 030 006 006 006 009 009 006 006 012 009 006 006 018 009 006 006 024 009 006 006 030 009 006 006 012 012 006 006 018 012 006 006 024 012 006 006 030 012 006 006 018 018 006 006 024 018 006 006 009 009 009 006 012 009 009 006 018 009 009 006 024 009 009 006 030 009 009 006 012 012 009 006 018 012 009 006 024 012 009 006 030 012 009 006 018 018 009 006 024 018 009 006 LEGEND: CLEAR = No adaptors required. GRAY = 3/8 x 1/2 in. gas pipe adaptor is required for line set connection to outdoor unit (furnished with outdoor unit). BLACK = 1/4 x 3/8 in. liquid pipe adaptor is required for line set connection to the 048 outdoor unit (furnished with outdoor unit). 1/2 x 5/8 in. gas pipe adaptor is required for line set connection to the 048 outdoor unit (furnished with outdoor unit). 60 Zone 5 (E) 1/4 in. liq + 3/8 in. gas - - - - - - - - - - - - - - - - - - - - - - - - - - - - 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 MLB048S4M / MPC048S4M Number of Zones and Outdoor Unit Connection Sizes NOTE - Letter = Indoor Unit Zone Connection on Outdoor Unit Zone 1 (A) Zone 2 (B) Zone 3 (C) Zone 4 (D) 1/4 in. liq + 1/2 in. gas 1/4 in. liq + 1/2 in. gas 1/4 in. liq + 3/8 in. gas 1/4 in. liq + 3/8 in. gas 012 012 012 006 018 012 012 006 024 012 012 006 018 018 012 006 009 009 009 009 012 009 009 009 018 009 009 009 024 009 009 009 030 009 009 009 012 012 009 009 018 012 009 009 024 012 009 009 018 018 009 009 012 012 012 009 018 012 012 009 024 012 012 009 012 012 012 012 018 012 012 012 009 009 009 009 012 009 009 009 018 009 009 009 024 009 009 009 012 012 009 009 018 012 009 009 024 012 009 009 012 012 012 009 018 012 012 009 012 012 012 012 012 012 012 012 LEGEND: CLEAR = No adaptors required. GRAY = 3/8 x 1/2 in. gas pipe adaptor is required for line set connection to outdoor unit (furnished with outdoor unit). BLACK = 1/4 x 3/8 in. liquid pipe adaptor is required for line set connection to the 048 outdoor unit (furnished with outdoor unit). 1/2 x 5/8 in. gas pipe adaptor is required for line set connection to the 048 outdoor unit (furnished with outdoor unit). Zone 5 (E) 1/4 in. liq + 3/8 in. gas 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 006 009 009 009 009 009 009 009 009 009 009 012 61 11. Power and Communication Wiring for Systems CAUTION This unit must be properly grounded and protected by a circuit breaker. The ground wire for the unit must not be connected to a gas or water pipe, a lightning conductor or a telephone ground wire. Do not connect power wires to the outdoor unit until all other wiring and piping connections have been completed. Install all wiring at least 3 feet (1 m) away from televisions, radios, LEDs, or other electronic devices in order to avoid the possibility of interference with the unit operation. Do not install the unit near a lighting appliance that includes a ballast. The ballast may affect remote control operation. WARNING Isolate the power supply before accessing unit electrical terminals. Install unit so that unit disconnect is accessible. Follow all local and national codes, as well as this installation instruction, during installation. Do NOT overload electrical circuit, as this may lead to failure and possible fire. Use specified wiring and cable to make electrical connections. Clamp cables securely and make sure that connections are tight to avoid strain on wiring. Insecure wiring connections may result in equipment failure and risk of fire. Wiring must be installed so that all cover plates can be securely closed. In the U.S.A., wiring must conform with current local codes and the current National Electric Code (NEC). In Canada, wiring must conform with current local codes and the current Canadian Electrical Code (CEC). Refer to unit nameplate for minimum circuit ampacity and maximum over-current protection size. · All indoor units are powered by the outdoor unit. · Make all electrical power wiring connections at the outdoor unit. · Size outdoor unit power per local code and power requirements. · Connect wiring between indoor and outdoor terminals. · Refer to unit name plate for rated voltage. · Be sure to reattach all electrical box covers after connections are complete. · Follow NEC/CEC standards and all local and state codes during wiring installation. 62 12. Outdoor Unit Condensate Piping Condensate formed during the heating and defrost processes must be drained from heat pump units. Drain holes are provided in the base of the units to ensure proper drainage. Heat pumps must be raised when installed on a concrete pad or the ground to allow drainage to occur. If the heat pump unit is installed on wall mounting brackets, insert the provided drain connector into one of the 1 inch (25 mm) drain holes and attached a field-provided insulated drain hose to the connector. Use field-provided rubber plugs to cover any unused drain holes. Drain Connector Note: Used if the unit is hanging on the wall and needs to have the water moved away. Chassis Condensate Drain (location varies per model) Figure 21. Condensate Drainage Requirement 63 13. MPC Condensate Pump Diagrams Figure 22. MPC Condensate Pump Powered by MPA Wiring Diagram Figure 23. MPC Condensate Pump Powered by Separate Source Wiring Diagram 64 14. Installation Requirements 14.1. Torque Requirements CAUTION Refrigerant pipe diameter is different according to indoor unit to be connected. When using the extension pipe, refer to the tables below. When refrigerant pipe diameter is different from that of the outdoor unit connector (18K indoor unit) an additional adapter is required. MM 6.35 9.52 12.7 Outside Diameter Inches 1/4 3/8 1/2 Table 6. Torque Torque v.cm 1500 (153kgf.cm) 2500 (255kgf.cm 3500 (357kgf.cm) Additional Tightening N.cm 1600 (163kgf.cm) 2600 (265kgf.cm) 3600 (367kgf.cm) 14.2. Pipe Length and Elevation Maximum piping length and height difference. Table 7. Pipe Diameter - MM (Inches) Model 18K 24K 24K 30K 36K 48K Indoor Unit Pipe Diameter (mm/inches) Liquid 6.35 (1/4) Gas 12.7 (1/2) Liquid 9.52 (3/8) Gas 15.9 (5/8) 1 drive 2 1 drive 3 1 drive 4 1 drive 5 Extension Pipe Diameter (mm/inches) Liquid Gas Liquid Gas Liquid Gas Liquid Gas Liquid Gas Liquid Gas 6.35 (1/4) 12.7 (1/2) 9.52 (3/8) 15.9 (5/8) 6.35 (1/4) *2 9.52 (3/8) *2 6.35 (1/4) *3 9.52 (3/8) *3 6.35 (1/4) *4 9.52 (3/8) *3 12.7 (1/2) *1 6.35 (1/4) *5 9.52 (3/8) *3 12.7 (1/2) *2 Length Max. length for all rooms (m) Max. length for one IU (m) Max. height difference between IU and OU (m) Max. height difference between IUs (m) Table 8. Line Set Length - Meters (Feet) 1 Drive 2 1 Drive 3 40 (131) 60 (197) 25 (82) 30 (98) 1 Drive 4 80 (262) 35 (115) 15 (49.2) 15 (49.2) 15 (49.2) 10 (33) 10 (33) 10 (33) 1 Drive 5 80 (262) 35 (115) 15 (49.2) 10 (33) 65 14.2.1. Additional Refrigerant Charge Table 9. Outdoor Unit Size (KBtu) Pipe Length (feet / meters) 18 >25 (7.5) 24 >25 (7.5) 36 >25 (7.5) 48 >25 (7.5) 60 >25 (7.5) Note: 1/4" = 0.16 oz/ft; 3/8" = 0.32 oz/ft Additional Refrigerant Charge Amount of Refrigerant to add 0.16 oz/ft (15g/m) 0.32 oz/ft (30g/m) 0.32 oz/ft (30g/m) 0.32 oz/ft (30g/m) 0.32 oz/ft (30g/m) 14.2.2. Gas Leak Check with Soap Water: Apply soap water or a liquid neutral detergent on the connections with a soft brush to check for leakage in the pipe connecting points. If bubbles emerge, the pipes are leaking. 14.2.3. Air and Moisture Air and moisture in the refrigerant system cause the following problems: · Increases in system pressure · Increases in operating current · Decreases in cooling and heating efficiency · Blocks in capillary tubing caused by moisture in the refrigerant circuit freezing · Corrosion of parts in the refrigerant system caused by water The indoor units and the pipes between indoor and outdoor units must be tested for leakages and evacuated to remove gas and moisture from the system. 14.2.4. Air Purging using a Vacuum Pump · Completely tighten the flare nuts on the indoor and outdoor units. Confirm that both the 2-way (liquid side) and 3-way (suction side) valves are set to the closed position. · Connect the suction side charge hose to the gas valve service port. · Connect the high side charge hose to the vacuum pump. · Fully open the suction side of the manifold valve. · Turn on the vacuum pump to begin evacuation. · Conduct a 30-minute evacuation. Check whether the compound meter indicates - 0.1Mpa(14.5Psi). If the meter does not indicate -0.1Mpa (14.5Psi) after 30 minutes has elapsed, continue evacuation for 20 more minutes. If the pressure does not reach - 0.1Mpa (14.5Psi) after 50 minutes has elapsed, check if there are any leaks. · Fully close the suction side of the manifold valve and turn off the vacuum pump. After 5 minutes, confirm that the gauge needle is not moving. · Turn the flare nut on the suction side valve 45° counterclockwise for 6-7 seconds. Once gas begins to come out, tighten the flare nut. Make sure the pressure display on the pressure indicator is higher than atmospheric pressure. Then remove the charge hose from the suction side valve. · Fully open the liquid side and suction side valves and securely tighten the cap on the suction side valve. 66 14.2.5. Adding Refrigerant if Pipe Length Exceeds Charge Less Pipe Length Connect the charge hose to the charging cylinder and open the liquid side and suction side valves. With the charge hose you disconnected from the vacuum pump, connect it to the valve at the bottom of the cylinder. If the refrigerant is R410A, place the cylinder bottom-up to ensure liquid charging is possible. · Purge the air from the charge hose. · Open the valve at the bottom of the cylinder and press the check valve on the charge set (be careful of the liquid refrigerant). · Place the charging cylinder onto the electronic scale and record the weight. · Turn on the air conditioner in cooling mode. · Open the valves (Low side) on the charge set. Charge the system with liquid refrigerant. · When the electronic scale displays the proper weight (refer to the table), disconnect the charge hose from the suction side valve's service port immediately and turn off the air conditioner before disconnecting the hose. · Mount the valve stem caps and the service port. Use a torque wrench to tighten the service port cap to a torque of 18N.m (13.27 ft·lbs). · Be sure to check for gas leaks. 14.2.6. Add Refrigerant after Long-Term System Operation · Connect the charge hose to the suction side service port and open the liquid side and suction side valves. · Connect the charge hose to the valve at the bottom of the cylinder. If the refrigerant is R410A, place the cylinder bottom-up to ensure liquid charge. · Purge the air from the charge hose. · Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air (be careful of the liquid refrigerant). · Place the charging cylinder onto the electronic scale and record the weight. · Turn on the air conditioner in cooling mode. · Open the valves (Low side)on the charge set and charge the system with liquid refrigerant. · When the electronic scale displays the proper weight (refer to the gauge and the pressure of the low side), disconnect the charge hose from the suction side valve's service port immediately and turn off the air conditioner before disconnecting the hose. · Mount the valve stem caps and the service port. Use torque wrench to tighten the service port cap to a torque of 18N.m(13.27 ft·lbs). · Be sure to check for gas leaks. 14.2.7. Servicing Indoor Unit Refrigeration Circuit 14.2.7.1 Collecting Refrigerant into Outdoor Unit · Confirm that both the liquid side and suction side valves are set to the opened position · Remove the valve stem caps and confirm that the valve stems are in the opened position. · Be sure to use a hexagonal wrench to operate the valve stems. · Connect the suction side charge hose to the gas valve service port. · Air purging of the charge hose - Open the suction side of the manifold valve slightly to purge air from the charge hose for 5 seconds and then close it quickly. · Set the liquid side valve to the close position. 5). Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0.1MPa (14 psi). 67 · Set the suction side valve to the closed position immediately · Do this quickly so that the gauge ends up indicating 0.3 to 0.5Mpa (43 - 72 psi). · Disconnect the charge set, and tighten the liquid side and suction side valve's stem nuts. · Use a torque wrench to tighten the suction side valves service port cap to a torque of 18N.m. · Be sure to check for gas leakage. 14.2.7.2 Air Purging with Vacuum Pump · Completely tighten the flare nuts of the indoor and outdoor units, confirm that both the liquid side and suction side valves are set to the closed position. · Connect the suction side charge hose to the gas valve service port. · Connect the high side charge hose to the vacuum pump. · Fully open the suction side of the manifold valve. · Operate the vacuum pump to evacuate. · Make evacuation for 30 minutes and check whether the compound meter indicates - 0.1Mpa (500 microns). If the meter does not indicate - 0.1Mpa (500 microbars) after pumping 30 minutes, it should be pumped 20 minutes more. If the pressure can't achieve -0.1Mpa (500 microbars) after pumping 50 minutes, please check if there are some leakage points. · Fully close the suction side of the manifold valve and stop the operation of the vacuum pump. Confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump). · Turn the flare nut of the suction side valves about 45° counterclockwise for 6 or 7 seconds after the gas coming out, then tighten the flare nut again. Make sure the pressure display in the pressure indicator is a little higher than the atmosphere pressure. Then remove the charge hose from the suction side valve. · Fully open the liquid side valve and suction side valve and securely tighten the cap of the suction side. 68 14.2.8. Evacuation after Servicing the Outdoor Unit Refrigeration Circuit 14.2.8.1 Evacuation of the Complete Refrigeration Circuit, Indoor and Outdoor Unit · Confirm that both the liquid side and suction side valves are set to the opened position. · Connect the vacuum pump to suction side valve's service port. · Evacuation for approximately one hour. Confirm that the compound meter indicates - 0.1Mpa (500 Microns / 29.9 in. hg). · Close the valve (Low side) on the charge set, turn off the vacuum pump, and confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump). · Disconnect the charge hose from the vacuum pump. 14.2.8.2 Refrigerant Charging · Connect the charge hose to the charging cylinder, open the liquid side valve and the suction side valve. · Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder. If the refrigerant is R410A, make the cylinder bottom up to ensure liquid charge. · Purge the air from the charge hose · Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air (be careful of the liquid refrigerant). · Put the charging cylinder onto the electronic scale and record the weight. · Open the valves (Low side) on the charge set and charge the system with liquid refrigerant. If the system cannot be charged with the specified amount of refrigerant, charged a little at a time (approximately 150g each time) in the cooling cycle. Wait approximately one minute before repeating the procedure until it is properly charged. · When the electronic scale displays the proper weight, disconnect the charge hose from the suction side valve's service port immediately · If the system has been charged with liquid refrigerant while operating the air conditioner, turn off the air conditioner before disconnecting the hose. · Mounted the valve stem caps and the service port. Use torque wrench to tighten the service port cap to a torque of 18N·m (13.27 ft·lbs). · Always leak check after servicing the refrigerant system. · There is one master suction valve and one master liquid valve; it save time when vacuuming and recycling refrigerant. But refer to the previous instruction when vacuum and recycle refrigerant. 15. Electronic Function 15.1. Abbreviations · T1: Indoor ambient temperature · T2: Middle indoor heat exchanger coil temperature · T2B: Indoor heat exchanger exhaust coil temperature (located on the outdoor unit) · T3: Outdoor heat exchanger pipe temperature · T4: Outdoor ambient temperature · T5: Compressor discharge temperature 69 15.2. Electric Control Working Environment. · Input voltage: 230V. · Input power frequency: 60Hz. · Indoor fan standard working amp.: <1A · Outdoor fan standard working amp.: <1.5A. · Four-way valve standard amp.: <1A 16. Start-Up 16.1. Adding Refrigerant - Single-Zone Systems The outdoor unit is factory-charged with refrigerant. Calculate the additional refrigerant required according to the diameter and the length of the liquid pipe between the outdoor unit and indoor unit connections. Be sure to add the proper amount of additional refrigerant. Failure to do so may result in reduced performance. NOTE: Interconnecting pipe work between outdoor and indoor units must be 10 ft. or longer. NOTE: Do not remove refrigerant for line lengths less than 25 ft. R-410A is a blended refrigerant. If you must remove charge, it is necessary to remove the entire charge and weigh in the new charge. Table 10. Adding Refrigerant System Size (KBtu) Pipe Length 18 >25 (7.5) 24 >25 (7.5) 30 >25 (7.5) 36 >25 (7.5) 48 >25 (7.5) 60 >25 (7.5) Note: 1/4" = 0.16 oz/ft; 3/8" = 0.32 oz/ft Amount of Refrigerant to add 0.16 oz/ft (15g/m) 0.32 oz/ft (30g/m) 0.32 oz/ft (30g/m) 0.32 oz/ft (30g/m) 0.32 oz/ft (30g/m) 0.32 oz/ft (30g/m) 16.2. Adding Refrigerant - Multi-Zone Systems The outdoor unit is factory-charged with refrigerant. Calculate the additional refrigerant required according to the length of the liquid pipe (one way) between the outdoor unit and each indoor unit connection. Be sure to add the proper amount of additional refrigerant. Failure to do so may result in reduced performance. NOTE: Interconnecting pipe work between outdoor and indoor units must be 10 ft. or longer. Do not remove refrigerant for line lengths less than 25 ft. R-410A is a blended refrigerant. If you must remove charge, it is necessary to remove the entire charge and weigh in the new charge. System Two-port Three- port Four-port Five-port Pre-charge Pipe Length 50 ft. (15 m) 75 ft. (23 m) 100 ft. (30 m) 125 ft. (38 m) Table 1. Adding Refrigerant Amount of Refrigerant to add 0.16 oz [(L1 ft + L2 ft) - 50 ft] 0.005 kg [(L1 m + L2 m) - 15 m] 0.16 oz [(L1 ft + L2 ft + L3 ft) - 75 ft] 0.005 kg [(L1 m + L2 m + L3 m) - 23 m] 0.16 oz [(L1 ft + L2 ft + L3 ft + L4 ft) - 100 ft] 0.005 kg [(L1 m + L2 m + L3 m + L4 m) - 30 m 0.16 oz [(L1 ft + L2 ft + L3 ft + L4 ft + L5 ft) - 125 ft] 0.005 kg [(L1 m + L2 m + L3 m + L4 m + L5 m) - 38 m] 70 17. Single and Multi-Zone Outdoor Control Connections Inverter Outdoor PCB 24K Mono Main PCB Port Descripon CN1 Power output for 4-way valve CN6 Power output for compressor heater CN3 Port for L-in CN9 Power output for chassis heater CN4 Port for N-in CN29 N-out for IPM board CN37 L-out for IPM board CN28 Port for communicaon with indoor unit CN26 Port for test board CN21 Communicaon with IPM board CN7 Power output for discharge (T5) temperature sensor CN18 Power output for EEV Voltage 230V/AC 230V/AC 230V/AC 230V/AC 230V/AC 5V/DC 12V, 5V/DC 5V/DC 12V/AC PCB Code: 17122300001076 CN7 CN21 CN18 CN26 CN28 Main Chip EEPROM CN37 CN29 Digital Display Check Buon CN1 CN6 CN3 CN9 CN4 Figure 24. Typical Component Locations (MLB018S4M-1P, MPC024S4M-1P, MPC018S4M-2P, and MPC036S4M-1P 71 Inverter Outdoor PCB 18K/24K (Gas cooler) Alt. Port CN23 CN414 CN17 CN18 CN19 CN5 CN16 CN60 CN3 CN27 Descripon Voltage Port for test board 5V/DC Port for DC fan 0-310V/AC Power output for condenser (T3), ambient (T4) and discharge (Tp) temperature sensors 5V/DC Power output for EEV 12V/DC Power output for chassis heater 230V/AC Power output for AC fan 230V/AC Power output for compressor heater 230V/AC Power output for 4-way valve 230V/AC Port for power cable (E,N,L,S) Port for Compressor 0-310V/AC PCB Code: 17122000048064 CN23 CN17 CN19 CN16 CN414 CN18 CN5 CN60 CN3 Recfier, FRD, IGBT and IPM CN27 NL S U VW IPM for DC Fan FUSE Recfier P N IPM - LN+ P WVU N Figure 25. Typical Component Locations (MPC018S4S-1P and MPC024S4S-1P) 72 Figure 26. Typical Component Locations (MLB048S4S-2P, MLB036S4S-2P, MLB048S4S-1P, MLB036S4S-1P, MLB048S4M-2P. MPC048S4S-1P and MPC060S4S-1P) 73 Inverter Outdoor PCB 18K/24K (Gas cooler) Port CN23 CN414 CN17 CN18 CN19 CN5 CN16 CN60 CN3 CN21 Descripon Voltage Port for test board 5V/DC Port for DC fan 0-310V/AC Power output for condenser (T3), ambient (T4) and discharge (Tp) temperature sensors 5V/DC Power output for EEV 12V/DC Power output for chassis heater 230V/AC Power output for AC fan 230V/AC Power output for compressor heater 230V/AC Power output for 4-way valve 230V/AC Port for power cable (E,N,L,S) Port for Compressor 0-310V/AC NL S PCB Code: 17122000041117 CN23 CN17 CN19 CN16 CN414 CN18 CN5 CN60 CN3 Recfier, FRD, IGBT and IPM CN21 U VW IPM for DC Fan FUSE Recfier P N IPM - LN+ P WVU N Figure 27. Typical Component Locations (MLB018S4S-1P) 74 24K/36K (1 Phase, New Gas-cooler) Main PCB CN24 EEPROM Main Chip PCB Code: 17122000047742 CN30 CN42 CN27 CN28 CN26 Port Descripon CN24 Port for test board CN27 Communicaon port with key board CN30 Port for OLP (Compressor top) CN28 Port for Hi-pressure and low-pressure switches CN42 Power for heatsink (TF) temperature sensor CN26 Power output for condenser (T3), ambient (T4) and discharge (Tp) temperature sensors CN16 Power output for EEV CN11, 12 Port for power cable (N, L) CN38 Power output for 4-way valve CN21 Power output for chassis heater CN20 Power output for compressor heater CN32 Port for DC fan UVW Port for Compressor Voltage 5V/DC 5V/DC 5V/DC 12V/DC 230V/AC 230V/AC 230V/AC 230V/AC 0-310V/AC 0-310V/AC UVW Recfier, FRD, IGBT and IPM CN32 CN16 CN11 CN12 CN38 CN21 CN20 Figure 28. Typical Component Locations (MPC036S4S-1P and MLB024S4S-1P X4 Mul Main PCB Port Descripon CN23 Port for DC fan CN24 Port for test board CN29 Port for Hi-pressure and low-pressure switches CN30 Port for OLP (Compressor top) CN26 Power output for condenser (T3), ambient (T4) and discharge (Tp) temperature sensors CN28 Communicaon port with key board CN15, 3, 13, 10 Power output for EEVs CN38 Power output for 4-way valve CN4, 2, 43, 5 Communicaon ports with indoor units CN11, 12 Port for power cable (N, L) CN21 Power output for chassis heater CN8 Power output for compressor heater CN27 Power output for evaporator outlet (T2B) temperature sensors UVW Port for Compressor Voltage 0-310V/AC 5V/DC 5V/DC 12V/DC 230V/AC 230V/AC 230V/AC 230V/AC 5V/DC 0-310V/AC PCB Code: 17122000051368 EEPROM Main Chip CN29 CN30 CN23 CN24 CN26 CN28 Recfier, FRD, IGBT and IPM CN15 CN3 CN13 CN10 CN38 CN4,2 ,43,5 CN11 CN12 UVW CN27 CN8 CN21 Figure 29. Typical Component Locations (MPC018S4M-1P) 75 18. Specifications and Operations Table 2. Electronic Functions Abbreviations T1 Indoor ambient temperature T2 Coil temperature of indoor heat exchanger T2B Coil temperature of indoor heat exchanger outlet. (Located in outdoor unit) T3 Pipe temperature of outdoor heat exchanger T4 Outdoor ambient temperature T5 Compressor discharge temperature Table 3. Electronic Control Working Environment Input voltage: 230V Input power frequency: 60Hz Indoor fan normal working amp. is less than 1A Outdoor fan normal working amp is less than 1.5A Four-way valve normal working amp is less than 1A Table 4. Main Protection Three minutes delay at restart for compressor One minute delay for the first time start-up and three minutes delay for others Temperature protection of compressor discharge When the compressor discharge is getting higher, the running frequency will be limited as below rules: If 215.6°F (102°C) < T5 < 244.4°F (115°C), decrease the frequency to the lower level every two minutes until to F1. If T5 < 244.4°F (115°C) for ten seconds, the compressor will stop and restart till T5 < 194°F (90°C) Table 5. Indoor/Outdoor Units Communication Protection If the indoor units cannot receive the feedback signal from the outdoor units for two minutes, the unit will stop and display failure. High Condenser Col Temp Protection When T3>149°F (65°C) for three seconds, the compressor will stop while the indoor fan and outdoor fan will continue. When T3<125.6°F (52°C), the protection will release and the compressor will restart after three minutes. Outdoor Unit AntiFreezing Protection When T2B< 32°F (0°C) for 250 seconds, the indoor unit capacity demand will be zero and resume to normal when T2B> 50°F (10°C). Running Rules 1. If the compressor frequency keeps lower than RET_OIL_FREQ1_ADD for RET_OIL_TIME1_ADD,the AC will rise the frequency to RET_OIL_FREQ2_ADD for RET_OIL_TIME2_ 2. During the oil return process, the EXV will keep 300p while the indoor units will keep the current running mode. Preheating permitting condition Preheating Mode Preheating Release Condition Table 6. Compressor Preheating Functions If T4 (outdoor ambient temperature)< 37.4°F (3°C) and newly powered on or if T4<37.4°F (3°C) and compressor has stopped for over 3 hours, the compressor heating cable will work. A weak current flow through the coil of compressor from the wiring terminal of compressor, then the compressor is heated without operation. If T4>41°F (5°C) or the capacity demand isn't zero, preheating function will stop. Preheating permitting condition Preheating Release Condition Table 7. Compressor Crankcase Heater When T4< 37.4°F (3°C) within 5 seconds of being plugged in, the crankcase heater will be active. When T4< 37.4°F (3°C) and the compressor is not running for 3 hours, the crankcase heater will be active. If T4>41°F (5°C) or the indoor has capacity demand, the crankcase heater will stop work. 76 19. Pressure on Service Port 19.1. Cooling Charts 19.1.1. Cooling Mode Indoor Temp. () PSI 70 PSI 75 PSI 80 19.1.2. Pressure (PSI) Table 8. 75 Cooling Charge - Cooling Mode Outdoor temp. 85 95 23.89 29.44 35 119 113 117 124 120 126 135 129 132 105 40.56 125 132 140 .PSI 174 145 115 46.11 147 155 162 70 58 75F 23.8985F 29.44 95F 35 105F 115F Outdoor temp. 40.56 46.11 19.2. Heating Chart 19.2.1. Heating Mode Indoor Temp. () PSI 55 PSI 65 PSI 75 Table 9. 57 57 (13.89) 439 471 489 Heating Charge - Heat Mode Outdoor temp. 47 37 7 (8.33) -2.78 413 367 435 386 457 403 27 (-2.78) 330 368 381 17 (-8.33) 302 339 362 77 19.2.2. Pressure (PSI) 580 507 435 362 290 55 65 217 75 57F (13.89) 47F (8.33) 37F (2.78) 27F (-2.78) Outdoor 17F t (-8.33) 19.3. Capacity Request Calculations Total capacity Request=(Norm code × HP) /10× modify rate+ correction. T1 Ts a 4 3 b 3 2 c 2 1 d 1 0 e 0 1 f Capacity Area Norm Code (N) Figure 30. Cooling Mode a b c d ef 3 2 1.5 1 .5 0 Model 6K 9K 12K 18K 24K HP 0.8 1.0 1.2 1.5 2.5 NOTE: The final result is integer. Plus all the indoor capacity request together, then modify it by T4. When there is only one indoor unit: Cooling >29°C >84.2°F Outdoor Temperature (T4) 18°C to 29°C 64.4°F to 84.2°F Modify Rate 100% 60% 78 30K 36K 3.2 4.0 <17°C <62.6°F 40% When there is more than one indoor unit: Cooling >25°C >77°F Outdoor Temperature (T4) 17°C - 25°C 62.6°F - 77°F <17°C <62.6°F Modify Rate NOTE: The final result is integer. 100% 80% 40% In low ambient cooling mode, modify rate is fixed as 40%. According to the final capacity request to confirm he operating frequency, as following table. Frequency (Hz) 0 Amendatory capacity demand 0 COOL_ F1 1 COOL_ ... COOL_ F2 ... 15 ... 2 15 ... COOL_ 16 16 Meanwhile the maximum running frequency will be adjusted according to the outdoor ambient temp. T4LimFre5_ADD 49 48 T4LimFre4_ADD 46 45 43 T4LimFre3_ADD 42 41 T4LimFre2_ADD 39 38 T4LimFre1_ADD 37 No limit 19.4. Heating Mode Figure 31. Heating Mode Plus all the indoor capacity request together, then multiply it by T4. When there is only one indoor unit: T1 Ts 4 3 f 3 2 e 2 1 d 1 0 c 0 b -1 a Capacity Area Norm Code (N) a b c 3 2 1.5 79 d e f 1 .5 0 Model HP Heating Modify Rate 6K 0.8 <0°C <32°F 120% 9K 12K 1.0 1.2 Outdoor Temperature (T4) <12°C <53.6°F 80% When there more than one indoor unit: Heating Modify Rate <0°C <32°F 120% Outdoor Temperature (T4) <12°C <53.6°F 100% 18K 30K 1.5 2.5 12°C to 17°C 53.6°F to 77°F 40% 12°C to 17°C 53.6°F to 62.6°F 80% 36K 4.0 17°C 62.6°F 20% 17°C 62.6°F 60% NOTE: The final result is integer. Then modify it according to T2 average (correction). NOTE: Average value of T2: Sum T2 value of all indoor units)/ (indoor units number). According to the final capacity request to confirm the operating frequency, as following table. Heating capacity improved in low ambient heating. In heating mode, when T2<T2_ExitT4LowFre_ADD , and T4<-4°C, there is frequency elevation: elevated frequency= Recent frequency * 110% When T2> T2_ExitT4LowFre_ADD-2 and T4>-6, the highest frequency can't exceed F17 When T2> T2_ExitT4LowFre_ADD-4 and T4>-8, the highest frequency can't exceed F18 When T2> T2_ExitT4LowFre_ADD-6 and T4>-10, the highest frequency can't exceed F19 In the other conditions, the highest frequency is F20. Frequency (Hz) 0 Amendatory capacity demand 0 HEAT_ F1 1 HEAT_ ... HEAT_ F2 ... 15 ... 2 15 ... HEAT_ 16 16 80 19.5. Defrost Control For defrost calculations: · T3 = Outdoor coil temperature sensor. · T30 = Minimum value of T3 during 10 to 15 minutes of run-time period. Defrost mode begins when any one of the following conditions are met: · After 29 minutes of run-time - T3 < 19.4°F (-7°C) and T3 + 4.5°F (2.5°C) T30. · After 35 minutes of run-time - T3 < 23°F (-5°C) and T3 + 5.4°F (3°C) T30. · After 40 minutes of run-time - T3 < -11.2°F (-24°C) for three minutes. · After 120 minutes of run-time - T3 < 5°F (-15°C). Run-time count starts T3 time measured and T3 temp determined 0 10 15 After 29 minutes of run-time T3 < 19.4°F and T3+5.4°F is still less than or equal to T30. After 40 minutes of run-time T3 < 11.2°F. 14 minutes 6 min 5 min 29 < 30 35 40 2 Hours After first 15 minutes of operation, if T3 < 19.4°F then defrost, otherwise monitor T3 for next 14 minutes. After 36 minutes of run-time T3 < 23°F and T3+5.4°F is still less than or equal to T30. 2 hours have passed and T3 < 5°F. This formula depends on humidy. The higher the humidity, the more frequent the defrost cycles. With no humidity, there will be less frost build-up. Defrost is a function of humidity. 19.6. Defrost Theory Figure 32. Defrost Calculations Tdef = The unit must run for a minimum of 11 minutes or longer in order for it to go into defrost mode. At that time it will look at one of the following five conditions to determine when to go into defrost. Those conditions are: · Condition 1: After 29 minutes of accumulated run-time: Coil temperature 19.4ºF and coil temperature Tdef 5.4ºF. · Condition 2: After 35 minutes of accumulated run-time: Coil temperature 23ºF and coil temperature Tdef - 2.7ºF · Condition 3: After 40 minutes of accumulated run-time: Coil temperature 10ºF for three minutes. · Condition 4: After 120 minutes of accumulated run-time: Coil temperature 5ºF. · Condition 5: If T3 is less than 37ºF after 120 minutes of continuous run-time and T3 is less than 27ºF for three minutes, it will start defrost. NOTE: T3 = Outdoor Coil Sensor 19.7. Defrost Termination If any of the following conditions are met, the unit will exit defrost mode and return to normal heating mode. · Condition 1: Coil temperature is higher than 70ºF. · Condition 2: Coil temperature is higher than 55ºF for continuous 80 seconds. · Condition 3: Defrost run-time of 10 minutes. This also includes any manual defrost update by using a remote control. 81 19.8. Outdoor Fan Control 19.8.1. Cooling Mode Normally the system will choose the running fan speed according to ambient temperature: T4 28 A DC_FAN_HI_SPD_ADD 26 25 B DC_FAN_MID_SPD_ADD 23 22 C DC_FAN_MIN_SPD_ADD 20 19 D DC_FAN_SLOW_SPD_ADD 17 E DC_FAN_SSLOW_SPD_ADD When low ambient cooling is valid: High 27 25 20 Low 15 low ambient cooling Outdoor fan speed control logical (low ambient cooling). When T4 <15°C (59°F) and T3 < 30°C (86°F), the unit will enter into low ambient cooling mode. The outdoor fan will choose speed according to T3. When T338°C (100.4°F) or when T420°C (68°F), the outdoor fan will choose the speed according to T4 again. Exit low ambient cooling mode, run with high fan 38 for 1 minute 30 27 Low 23 off 82 19.8.2. Heating Mode Normally the system will choose the running fan speed according to ambient temperature: T4 21 19 18 16 15 13 12 10 E DC_FAN_SSLOW_SPD_ADD D DC_FAN_SLOW_SPD_ADD C DC_FAN_MIN_SPD_ADD B DC_FAN_MID_SPD_ADD A DC_FAN_HI_SPD_ADD 19.9. Four-Way Valve Control In heating mode, four-way valve is opened. In defrosting, four-way valve operates according to defrosting action. In other modes, four-way valve is closed. When the heating mode to other modes, the four-way valve is off after compressor is off for 2 minutes. Failure or protection (not including discharge temperature protection, high and low pressure protection), four-way valve immediately shuts down. 19.10. Electronic Expansion Valve (EXV) Control a. EXV will be fully closed when turning on the power. Then EXV will be standby with 350P open and will open to target angle after compressor starts. b. EXV will close with -160P when compressor stops. Then EXV will be standby with 350P open and will open to target angle after compressor starts. c. The action priority of the EXVs is A-B-C-D. d. Compressor and outdoor fan start operation only after EXV is initialized. 19.10.1. Cooling mode The initial open angle of EXV is 250P, adjustment range is 100-350p. When the unit operates for three minutes, the outdoor will receive indoor units( of capacity demand) T2B information and calculate the average of them. After comparing each indoor's T2B with the average, the outdoor gives the following modification commands: If the T2B>average, the relevant valve opens 16p (pulses) more. If the T2B= average, the relevant valve's open range remains; If the T2B<average, the relevant valve closes 16p (pulses) more. This modification will be carried out every 2 minutes. 19.10.2. Heating mode The initial open angle of EXV is 250P, adjustment range is 100-350p. When the unit start to work for 3 minutes, the outdoor will receive indoor units (of capacity demand) T2 information and calculate from subject received, size and categories. After comparing each indoor's T2 with the average, the outdoor gives the following modification commands: If the T2>average+2, the relevant valve needs closes 16p (pulses) more. If average+2the T2 average-2, the relevant valve's open range remains. If the T2<average-2, the relevant valve opens 16p (pulses) more. This modification will be carry out every 2 minutes. 83 20. Error Codes The error code display is located on the main controller board of all multi-zone outdoor units. Table 10. MLB and MPC Multi-Zone Outdoor Unit Error Codes Table 10. MLB and MPC Multi-Zone Outdoor Unit Error Codes Display Malfunction and Protection Indication Display Malfunction and Protection Indication EL01 FL14 Communication malfunction between indoor and outdoor units. Capability mismatch between indoor unit and outdoor unit EC50 EC51 EC52 EC53 EC54 Outdoor temperature sensor error. Outdoor EEPROM error. Condenser coil temperature sensor (T3) malfunction. Outdoor ambient temperature sensor (T4 ) malfunction. Compressor discharge temperature sensor TP is in open circuit or has short circuited EC55 Outdoor IPM module temperature sensor malfunction EC56 Outdoor T2B sensor error. PC40 PC42 Communication error between outdoor main chip and compressor driven chip Compressor start failure of outdoor unit PC43 Outdoor compressor lack phase protection PC44 Outdoor unit zero speed protection PC45 Outdoor unit IR chip drive failure PC46 Compressor speed has been out of control PC49 Compressor over-current failure PCA1 Condensation protection of refrigerant pipe PH90 High temperature protection of Evaporator EC57 Refrigerant pipe temperature sensor error. PH91 Low temperature protection of Evaporator EC07 Outdoor DC fan motor malfunction/fan speed out of control. LC06 High temperature protection of Inverter module (IPM) EC71 Over current failure of outdoor DC fan motor. EC72 Lack phase failure of outdoor DC fan motor. PC00 Inverter module (IPM) protection. PC02 Top temperature protection of compressor. PC06 Discharge temperature protection of compressor. PC08 Outdoor over-current protection. PC0A High temperature protection of condenser. PC0F PFC module protection. PC0L Low temperature protection of outdoor unit. PC10 Outdoor unit low AC voltage protection. PC11 PC12 Outdoor unit main control board DC bus high voltage protection. Outdoor unit main control board DC bus high voltage protection / 341 Machine Check Error (MCE) error. PC30 System high pressure protection PC31 System low pressure protection 84 85 86 87 Index A Adding Refrigerant Multi-Zone System 70 Single Zone System 70 Alarm Device 25 B Blower Data - MMDB Indoor Units 11 C Centralized Controller 24 Clearances M22A and M33C Indoor Unit 10 Outdoor Units 41 D Decommissioning 6 Defrost Control 81 Defrost Termination 81 Defrost Theory 81 Dimensions M22A Indoor Unit 9 Multi-Zone Outdoor Units 40 Single-Zone Outdoor Units 39 F Fan Control - Outdoor 82 Fire Extinguisher 3 Flammable Refrigerant Detection 5 L LEDs Multi-Zone Outdoor Units 71 Line Sets MLB and MPC Single Zone Units 49 Multi-Zone Piping Limitations 52 Single Zone Piping Limitations 52 M Master Valves 3 to 5 Zone Outdoor Units 54 Model Number M22A and M33C Indoor Units 7 Single and Multiple Zone Outdoor Units 30 O ON/OFF Device 24 R Recovering Refrigerant 6 Recovery Equipment 6 Refrigerant Charging Procedures 5 Remove/Evacuate Refrigerant 5 Repair Seal Components 4 Repair to Instrinsically Safe Components 4 S Safety Precautions Refrigerant Presence Fire Extinguisher 3 Specifications M22A 7, 32 Start-Up 70 T Terminal Connections 22 U Unit Clearance Indoor Unit 10 Outdoor Units 42 V Ventilated Workspace 4 W Wiring Communication 17, 62 Main Power 17, 62 Multi-Zone Requirements 21 Single Zone Requirements 20 88