Preface
The Blueridge Free Match System utilizes cutting-edge manufacturing technology and the globally acknowledged, environmentally-friendly R410A refrigerant, positioning it as a green product for the 21st century. Please read this manual carefully before installation and operation.
Important Instructions Before Reading:
- This unit complies with UL1995 standards.
- The Free Match System conforms to the design standard ARI 210240-2008.
- For personal safety during operation, strictly follow the instructions provided in this manual.
- The total capacity of indoor units operating simultaneously must not exceed that of the outdoor unit; otherwise, cooling (heating) performance for each indoor unit may be poor.
| Model | Minimum number of connectable indoor units | Maximum number of connectable indoor units | Minimum capacity of connectable indoor units | Maximum capacity of connectable indoor units |
|---|---|---|---|---|
| 30K | 2 | 4 | 18K Btu | 42K Btu |
| 36K | 2 | 5 | 18K Btu | 48K Btu |
| BMKH42M-NDG3 | 2 | 5 | 18K Btu | 56K Btu |
Operational Notes:
- Switch the main power on 8 hours before starting the unit to ensure a successful startup.
- It is normal for the indoor unit fan to continue running for 20-70 seconds after receiving the "stop" signal, allowing for efficient use of residual heat for the next operation.
- If the running modes of the indoor and outdoor units conflict, an indicator will appear on the wired controller within five seconds, and the indoor unit will stop. To restore normal operation, harmonize the running modes: cooling mode is compatible with dehumidifying mode, and fan mode is compatible with any other mode. If power fails during operation, the indoor unit will send a "start" signal to the outdoor unit three minutes after power recovery.
- Cautions for Debugging and Maintenance Personnel: Prior to compressor startup during debugging and maintenance, ensure the compressor's heating belt has been energized for at least eight hours. Once started, the compressor must run continuously for at least 30 minutes to prevent damage.
User Notice
This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning the appliance's use by a person responsible for their safety. Children should be supervised to ensure they do not play with the appliance.
This appliance is intended for use by expert or trained users in shops, light industry, and on farms, or for commercial use by laypersons.
DISPOSAL: Do not dispose of this product as unsorted municipal waste. Collection of such waste separately for special treatment is necessary.
Safety Precautions
⚠️ WARNING: This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
⚠️ WARNING: This mark indicates procedures which, if improperly performed, might lead to death or serious injury.
⚠️ CAUTION: This mark indicates procedures which, if improperly performed, might possibly result in personal harm or property damage.
NOTICE: Used to address practices not related to personal injury.
General Safety Instructions:
- Installation and use instructions are provided by the manufacturer with each unit.
- Installation must be performed by authorized personnel in accordance with NEC and CEC requirements.
- Before installation, verify power supply compatibility with the nameplate specifications and ensure power safety.
- Properly earth the unit after plugging it into the socket to prevent electric shock. Do not connect the ground wire to gas pipes, water pipes, lightning rods, or telephone lines.
- Use only exclusive accessories and parts to prevent water leakage, electric shock, and fire accidents.
- If refrigerant leakage occurs during installation, ventilate the area immediately. Refrigerant gas can form poisonous gas if it meets fire.
- Ensure the power cord wire size is adequate. Replace damaged power cords or connection wires with exclusive cables.
- Securely fix the electric box cover after connecting the power cord to prevent accidents.
- Always comply with nitrogen charge requirements and charge nitrogen when welding pipes.
- Never short-circuit or bypass the pressure switch to prevent unit damage.
- Connect the wired controller before energization; otherwise, it cannot be used.
- Before use, check piping and wiring for correctness to avoid water leakage, refrigerant leakage, electric shock, or fire.
- Do not insert fingers or objects into the air outlet/inlet grille.
- Ensure good ventilation by opening doors and windows when using gas/oil supplied heating equipment to avoid oxygen deficit.
- Never start or stop the air conditioner by directly plugging or unplugging the power cord.
- Turn off the unit only after it has run for at least five minutes; otherwise, compressor oil return may be affected.
- Do not allow children to operate this unit.
- Do not operate the unit with wet hands.
- Turn off the unit or cut off the power supply before cleaning to prevent electric shock or injury.
- Never spray or flush water directly at the unit, as this may cause malfunction or electric shock.
- Do not expose the unit to moist or corrosive environments.
- Energize the unit 8 hours before operation. Do not cut off power during a 24-hour short-time halt to protect the compressor.
- Volatile liquids, such as diluents, can damage the unit's appearance. Clean the outer casing with a soft cloth and a little neutral detergent.
- During cooling mode, avoid setting the room temperature too low. Maintain a temperature difference of no more than 41°F (approx. 5°C) between indoor and outdoor units.
- If any abnormality occurs (e.g., burning smell), immediately power off the unit, cut off the main power supply, and contact a Blueridge appointed service center. Continued abnormality may lead to unit damage, electric shock, or fire.
- Users are not permitted to repair the unit. Faulty service may cause electric shock or fire accidents. Contact a Blueridge appointed service center for assistance.
Blueridge is not responsible for personal injury or equipment damage caused by improper installation, commissioning, unnecessary service, or failure to follow the rules and instructions in this manual.
Product Introduction
The Blueridge Free Match System employs inverter compressor technology, enabling stepless capacity regulation from 15% to 120% based on compressor displacement changes. With a capacity range from 30K to 42K Btu, it is suitable for boarding houses, working areas, and locations with variable load changes, making it an excellent choice for commercial air conditioning.
2.1 Name of Main Parts
The outdoor unit comprises the following main components:
- (1) Motor: Powers the fan.
- (2) Fan: Circulates air.
- (3) Electric Box: Houses electrical components.
- (4) Gas valve assembly: Manages refrigerant gas flow.
- (5) Liquid valve assembly: Manages refrigerant liquid flow.
The unit features air inlets on the sides and an air outlet at the front.
2.2 Combinations for Outdoor and Indoor Units
The Free Match Series air conditioning system allows one outdoor unit to operate up to five indoor units. These indoor units can be of various types, including Wall Mounted, Duct Type, Cassette Type, and Flooring Ceiling types.
The outdoor unit operates whenever any indoor unit receives a running command. All indoor units stop when the outdoor unit is turned off.
| Indoor unit Model | Capacity Code | Outdoor unit | ||
|---|---|---|---|---|
| Cozy (Wall mounted) | 09K | 30K | 36K | BMKH42M-NDG3 |
| 12K | ||||
| 18K | ||||
| 24K | ||||
| Hansol (Wall mounted) | 09K | |||
| 12K | ||||
| 18K | ||||
| 24K | ||||
| Flooring ceiling | 09K | |||
| 12K | ||||
| 18K | 24K | |||
| Duct type | 09K | |||
| 12K | ||||
| 18K | ||||
| 21K | ||||
| Cassette type | 24K | |||
| 12K | ||||
| 18K | ||||
| Console | 24K | |||
| 09K | ||||
| 12K | ||||
| 18K |
2.3 Rated Working Condition
| Rating | Indoor side state | Outdoor side state | ||
|---|---|---|---|---|
| Dry bulb temp. °F | Wet bulb temp. °F | Dry bulb temp. °F | Wet bulb temp. °F | |
| Cooling | 80.06 | 66.92 | 95 | 75.02 |
| Heating | 69.98 | 60.08 | 47 | 43.00 |
NOTICE:
- Cooling/heating capacity and noise levels are tested before shipment.
- Parameters are tested under rated working conditions. Refer to the nameplate for any changes.
- Heating capacity parameters exclude auxiliary electric heating power.
- Performance parameters are tested according to ANSI/AHRI 1230-2010.
2.4 The Range of Production Working Temperature
| Condition | Temperature Range |
|---|---|
| Cooling Working range | Outdoor temperature 0~118°F |
| Heating Working range | Outdoor temperature -4~86°F |
Preparation before Installation
3.1 Standard Parts
Use the following standard parts supplied by Blueridge:
| Number | Name | Picture Description | Quantity | Remark |
|---|---|---|---|---|
| 1 | Owner's manual | A booklet titled "Free Match Series R410A System-Outdoor Unit Owner's Manual" | 1 | |
| 2 | Tube connector subassembly | A set of connectors for refrigerant pipes. | 30K: 8 36K: 8 42K: 9 |
3.2 Selecting Installation Site
⚠️ WARNING:
- Install the unit where it can adequately withstand its weight and will not shake or fall off.
- Avoid direct sunshine and rainfall. Install the unit in a location protected from dust, typhoons, and earthquakes.
- Keep the unit away from combustible, inflammable, and corrosive gases or exhaust gases.
- Ensure sufficient space for heat exchange and servicing to guarantee normal operation.
- Position indoor and outdoor units close to each other, considering pipe length and bends.
- Prevent children from approaching the unit and take measures to avoid contact.
When the outdoor unit is surrounded by walls, follow the installation space requirements shown in Fig. 3:
Fig. 3 Description: Installation space diagram for an outdoor unit surrounded by walls, showing dimensions in inches: 78 3/4 inches height, 39 3/8 inches width, with 19 2/3 inches clearance on the sides.
3.3 Piping Connection
The maximum pipe length is detailed in the table below. Exceeding these limits may affect normal unit operation.
| Model | Connecting Pipe (inch) | Max. Pipe length(ft) | Max. Height Difference between Indoor Unit and Outdoor Unit (ft) | |
|---|---|---|---|---|
| Liquid | Gas | |||
| 30K | 1/4" | 3/8" | 229.6 | When the outdoor unit is above, maximum height difference is up to 49.2ft; When the indoor unit is above, maximum height difference is up to 49.2ft. |
| 36K | 1/4" | 3/8" | 246.1 | |
| BMKH42M-NDG3 | 1/4" | 3/8" | 246.1 | |
NOTICE:
- Use water-proof insulating pipe.
- Pipe wall thickness should be 0.019-0.039 inches, with a bearing pressure of 3.0MPa.
- Longer connection pipes may decrease cooling and heating capacity.
Installation Instruction
4.1 Outline and Dimension of the Outdoor Unit
For 30K Model:
Fig. 4 Description: Outline and mounting hole dimensions for the 30K outdoor unit, shown in inches. Front view shows width approx. 38 3/7 inches. Side view shows height approx. 31 inches and depth approx. 15 5/7 inches. Top view shows width approx. 36 2/9 inches and depth approx. 17 1/3 inches.
For 36K and BMKH42M-NDG3 Models:
Fig. 5 Description: Outline and mounting hole dimensions for the 36K and BMKH42M-NDG3 outdoor units, shown in inches. Front view shows width approx. 42 1/2 inches. Side view shows height approx. 43 3/7 inches and depth approx. 15 3/4 inches. Top view shows width approx. 40 inches and depth approx. 17 1/3 inches.
4.2 Installation of the Connection Pipe
Connecting piping for indoor and outdoor units is done in a manifold mode, as illustrated in Fig. 6.
Fig. 6 Description: Diagram showing refrigerant piping connecting one outdoor unit to multiple indoor units (wall-mounted, duct, cassette, flooring ceiling types).
4.2.1 Piping between the Indoor and Outdoor Units
- If liquid and gas stop valves (A, B, C, D, E) are not connected to indoor units, turn off the screw cap with a spanner to ensure airtightness.
- Refer to Fig. 7 for screw tightening torque moments.
- Align the flare end of the copper pipe with the screw and tighten by hand.
- Subsequently, tighten the screw using a torque wrench until it clicks, as shown in Fig. 7.
- Avoid bending the pipe at excessively small angles, which could cause cracking. Use a pipe tube bender for all bends.
- Wrap exposed refrigerant pipes and joints with sponge and secure with plastic tape.
Fig. 7 Description: Diagram illustrating the connection of a pipe, flare nut, spanner, and torque wrench. A table lists pipe diameters (1/4", 3/8", 1/2", 5/8"), copper tube thickness (≥0.0315 inch or ≥0.0394 inch), and corresponding tightening torque values (e.g., 11-22 ft·lbf for 1/4" pipe).
CAUTION:
- When connecting indoor units and refrigerant pipes, do not pull any joints by force to prevent cracking of capillary or other pipes, which could lead to leakage.
- Support refrigerant pipes with brackets; do not let the unit bear their weight.
- If the piping connection size of the outdoor unit differs from the indoor unit, use the indoor unit's connection dimension and appropriate different-diameter joints.
- For the Free Match system, label each pipe to identify its corresponding system and avoid incorrect piping.
4.2.2 Allowable Pipe Length and Drop Height
No additional refrigerant is required if the total refrigerant pipe length (liquid pipe) is within the limits specified in Table 6.
| Model | Total Liquid Pipe Length (a+b+c+d+e) |
|---|---|
| 30K | 131.2ft |
| 36K | 131.2ft |
| BMKH42M-NDG3 | 131.2ft |
Fig. 8 Description: Diagram illustrating equivalent length of the farthest fitting pipe (Lx) and height differences (H1, H2, H3) between indoor and outdoor units. It shows an outdoor unit connected to multiple indoor units (a-e) with pipe segments (L1-L5).
| Parameter | Allowable Value | 30K | 36K | BMKH42M-NDG3 | Fitting Pipe | |
|---|---|---|---|---|---|---|
| Total length (actual length) of fitting pipe | 229.6ft | 246.1ft | 246.1ft | L1+L2+...+LM (M≤5) | ||
| Length of farthest fitting pipe (ft) | 82ft | 82ft | 82ft | Lx (X=1,2,3,4,5) | ||
| Height difference between outdoor unit and indoor unit | Outdoor unit at upper | 49.2ft | 49.2ft | 49.2ft | H1 | |
| Outdoor unit at lower | 49.2ft | 49.2ft | 49.2ft | H3 | ||
| Height difference between indoor units (m) | 24.6ft | 24.6ft | 24.6ft | H2 |
4.2.3 Installation of the Protection Layer of the Refrigerant Pipe
- Insulate the refrigerant pipe with insulating material and plastic tape to prevent condensation and water leakage.
- Wrap the joints of the indoor unit with insulating material, ensuring no gaps, as shown in Fig. 9.
Fig. 9 Description: Cross-section of a refrigerant pipe joint showing the application of thermal insulating layer and plastic tape, emphasizing the need for "No gap".
After adequate pipe protection, avoid bending it at sharp angles to prevent cracking or breaking.
(3) Wrap the Pipe with Tape:
- Bundle the refrigerant pipe and electric wire together with tape, separating them from the drain pipe to prevent condensate overflow.
- Wrap the pipe from the bottom of the outdoor unit to where it enters the wall. Overlap the previous wrap by half.
- Secure the wrapped pipe to the wall using clamps.
CAUTION:
- Do not wrap the pipe too tightly, as this can weaken the insulation effect. Ensure the drain hose is kept separate from the pipe.
- After installation, seal the hole in the wall with sealing material to prevent wind and rain ingress.
4.2.4 Support and Protection for Pipeline
Provide support for hanging connection pipes. The distance between supports should not exceed 1 meter.
4.3 Air Purging and Refrigerant Charge
4.3.1 Air Purging
- The outdoor unit is pre-charged with refrigerant before shipment; additional refrigerant is needed for the refrigerant pipe during field installation.
- Ensure the liquid and gas valves of the outdoor unit are fully closed.
- Expel air from the indoor unit and refrigerant pipe using a vacuum pump, as depicted in Fig. 10.
Fig. 10 Description: Diagram illustrating the air purging process. It shows a setup with a liquid valve ("LO" Knob), gas valve ("HI" Knob), two manometers, a vacuum pump, and a connection hose.
(4) With the compressor not running, charge R410A refrigerant into the pipe via the outdoor unit's liquid valve (not the gas valve).
4.3.2 Additional Refrigerant Charging
Refrigerant Charge in the Outdoor Unit before Shipment
NOTICE:
- The outdoor unit is pre-charged with refrigerant before delivery. This charge does not include any additional refrigerant added to the indoor unit or refrigerant pipe.
- The amount of additional refrigerant charge depends on the diameter and length of the liquid refrigerant pipe, determined by installation requirements.
- Record the additional refrigerant charge for future maintenance.
(2) Calculation of the Additional Refrigerant Charge:
Additional Refrigerant Charge = (Length of Liquid Pipe × 0.375 × 54 + Length of Liquid Pipe × 0.25 × 22) - 880
The maximum allowable additional refrigerant charge is 800g. If the calculated value exceeds 800g, use 800g. If it is less than 800g, use the calculated value.
4.4 Electric Wiring
4.4.1 Wiring Precautions
- Installation must comply with national wiring regulations.
- Use only power cords with the correct voltage rating and dedicated circuits for the air conditioning.
- Do not pull the power cord forcefully.
- Electrical installation should be performed by a technician according to local laws, regulations, and this manual.
- The power cord diameter must be sufficient; replace any damaged cord with a dedicated one.
- Ensure reliable earthing by connecting the earth wire to a dedicated building device. Equip the system with an air switch and a leakage current protection switch that have adequate capacity and magnetic/thermal tripping functions for short circuits and overloads.
| Models | Power Supply | Capacity of the Air Switch (A) | Recommended Cord (pieces × sectional area) |
|---|---|---|---|
| 30K | 208/230V~60Hz | 30 | 3×0.0062 sq in |
| 36K | 208/230V~60Hz | 35 | 3×0.0062 sq in |
| BMKH42M-NDG3 | 208/230V~60Hz | 40 | 3×0.0062 sq in |
Fig. 11 Description: Wiring diagram for the 30K model, showing connections from the power supply to the outdoor unit terminals (XT, XTA, XTB, XTC, XTD) and then to indoor units A, B, C, and D, including grounding (G).
Fig. 12 Description: Wiring diagram for the 36K and BMKH42M-NDG3 models, showing connections from the power supply to the outdoor unit terminals (XT, XTA, XTB, XTC, XTD, XTE) and then to indoor units A, B, C, D, and E, including grounding (G).
4.4.2 Earthing Requirements
- The air conditioner is classified as Class I appliance; reliable earthing is mandatory.
- The yellow-green wire is the earth line and must not be used for other purposes, cut off, or fixed with tapping screws, as this poses a risk of electric shock.
- Provide a reliable earth terminal. Do not connect the earth wire to running water pipes, coal gas pipes, sewage pipes, or other locations deemed unreliable by professionals.
4.4.3 Electrical Cable Connection
CAUTION:
- Incorrect wiring can lead to malfunction. After wiring, ensure wires have sufficient slack between connection and fixed points.
- Connect piping and wiring for each indoor unit according to instructions.
- Electrical installation must be performed by a technician following local laws, regulations, and this manual.
- The installation location should be dry and protected from direct sunlight or strong breezes.
- Install a breaker in the circuit to shut off the main power supply. An air switch with leakage current protection is also required.
4.4.4 Wiring of the Power Cord
- Open the side plate.
- Connect the power cord to terminals "L1", "L2", and the earthing screw. Connect the wiring terminals "N(1), 2, 3" of the indoor unit to the outdoor unit correspondingly. Use the green bonding screw for the earthing cord, as shown in Fig. 13.
- Secure the power cord with wire clips.
- Route the power cord through the rubber ring.
CAUTION: If the supply cord is damaged, it must be replaced by the manufacturer, its service agent, or a similarly qualified person to avoid hazards.
Fig. 13 Description: Detail showing the connection of the power cord to the terminal block, highlighting the location to "Tighten the green bonding screw here" for the earthing cord.
Troubleshooting
⚠️ WARNING: In case of abnormal conditions (e.g., strange smell), immediately shut off the main power supply and contact a Blueridge appointed service center. Continued abnormal operation can damage the unit and pose risks of electric shock or fire.
Do not attempt personal repairs; contact qualified personnel at a Blueridge appointed service center, as incorrect repairs can cause electric shock or fire hazards.
Check before Contacting Service Center
| Check Items | Conditions Might Happen | Check |
|---|---|---|
| Has the unit been fixed firmly? | The unit may drop, shake, or emit noise. | |
| Have you done the gas leakage test? | It may cause insufficient cooling/heating capacity. | |
| Is the unit get proper thermal insulation? | It may cause condensation and dripping. | |
| Does the unit drain well? | It may cause condensation and dripping. | |
| Is the voltage in accordance with the rated voltage specified on the nameplate? | It may cause malfunction or damage the part. | |
| Is the electric wiring and piping connection installed correctly and securely? | It may cause malfunction or damage the part. | |
| Has the unit been earthed securely? | It may cause electrical leakage. | |
| Is the power cord specified? | It may cause malfunction or damage the part. | |
| Has the inlet and outlet been blocked? | It may cause insufficient cooling/heating capacity. |
NOTICE! If the air conditioner continues to run abnormally after these checks, please contact a local appointed service center and provide a description of the error and the unit model.
6 The Conditions Listed Below Are Not Classified Into Errors
| Condition | Cause |
|---|---|
| The unit does not run | When restart the unit soon after it is stopped: The overload protection switch delays startup for three minutes. As soon as power is on: The unit will stand by for approximately one minute. |
| The unit blows out mist | When the cooling operation starts: High-humidity indoor air is cooled rapidly. |
| The unit generates noise | The unit "clatters" as soon as it starts running: Sound generated during electronic expansion valve initialization. The unit "swishes" during cooling operation: Sound of refrigerant gas flowing inside the unit. The unit "swishes" when it is started or stopped: Sound of refrigerant gas stopping. The unit "swishes" when it is in and after running: Sound from the draining system operating. The unit "squeaks" when it is in and after running: Sound from panel expansion due to temperature changes. |
| The unit blows out dust. | When the unit restarts after a long period of shutdown: Dust inside the unit is blown out. |
| The unit emits odors. | When the unit is running: Odors absorbed by the unit are blown out. |
NOTICE! If problems persist after checking these items, contact the Blueridge service center with the observed phenomena and unit models.
Following Circumstances Are Not Malfunction
| Malfunction Description | Reason |
|---|---|
| Unit doesn't run | When unit is started immediately after it is just turned off: Overload protection switch makes it run after 3 minutes delay. When power is turned on: Standby operating for about 1 minute. |
| Mist comes from the unit | Under cooling: Indoor high humidity air is cooled rapidly. |
| Noise is emitted | Slight cracking sound when just turned on: Noise from electronic expansion valve initialization. There is consecutive sound when cooling: Sound of gas refrigerant flowing in the unit. There is sound when unit starts or stops: Sound of gas refrigerant stopping flow. There is slight and consecutive sound when unit is running or after running: Sound from the drainage system. Cracking sound when unit is operating and after operating: Sound caused by expansion of panel and other parts due to temperature change. |
| The unit blows out dust. | When unit runs after no operation for a long period: Dust in the indoor unit is blown out. |
| The unit emits odor. | Operating: Room odor absorbed by the unit is blown out again. |
| Indoor unit still runs after switch off | After every indoor unit receives "stop" signal, fan will keep running 20-70s to utilize residual cooling/heating and prepare for next operation. |
Mode Conflict
Condition: COOL or HEAT mode cannot be operated.
Reason: When the indoor operating mode conflicts with the outdoor unit's mode, the indoor fault indicator will flash, and the conflict will be displayed on the wired controller after 5 minutes. The indoor unit will stop running and adjust its operating mode to match the outdoor unit. The unit will then return to normal. COOL mode does not conflict with DRY mode. FAN mode does not conflict with any mode.
7 Troubleshooting
Error codes will be displayed on the wired controller and the main board of the outdoor unit. The meaning of each error is shown in Table 12.
| Name of Malfunction | The Indicator Display | ||
|---|---|---|---|
| Yellow light | Red light | Green light | |
| Compressor runs | Flash once | ||
| Defrost | Flash twice | ||
| Anti-freezing protection | Flash 3 times | ||
| IPM protection | Flash 4 times | ||
| AC over-current protection | Flash 5 times | ||
| Over-burden protection | Flash 6 times | ||
| Compressor exhaust high temperature protection | Flash 7 times | ||
| Compressor overload protection | Flash 8 times | ||
| Power protection | Flash 9 times | ||
| EEPROM reads and write protection | Flash 11 times | ||
| Low PN voltage protection | Flash 12 times | ||
| Over voltage protection for PN | Flash 13 times | ||
| PFC protection | Flash 14 times | ||
| PFC module temperature protection | Flash 15 times | ||
| Low pressure protection | Flash 17 times | ||
| High pressure protection | Flash 18 times | ||
| Limit/decline frequency (electric current) | Flash 1 time | ||
| Frequency limit (exhaust) | Flash 2 times | ||
| Frequency limit (Over-burden) | Flash 3 times | ||
| Outdoor ambient sensor malfunction | Flash 6 times | ||
| Outdoor tube sensor malfunction | Flash 5 times | ||
| Exhaust sensor malfunction | Flash 7 times | ||
| Attain the temperature of switch on | Flash 8 times | ||
| Frequency limit (power) | Flash 13 times | ||
| Outdoor fan malfunction | Flash 14 times | ||
| Frequency limit (PFC module temperature) | Flash 15 times | ||
| PFC module sensor malfunction | Flash 16 times | ||
| Liquid pipe temperature sensor malfunction of A | Flash 17 times | ||
| Gas pipe temperature sensor malfunction of A | Flash 18 times | ||
| Liquid pipe temperature sensor malfunction of B | Flash 19 times | ||
| Gas pipe temperature sensor malfunction of B | Flash 20 times | ||
| Liquid pipe temperature sensor malfunction of C | Flash 21 times | ||
| Gas pipe temperature sensor malfunction of C | Flash 22 times | ||
| Liquid pipe temperature sensor malfunction of D | Flash 23 times | ||
| Gas pipe temperature sensor malfunction of D | Flash 24 times | ||
| Liquid pipe temperature sensor malfunction of E | Flash 25 times | ||
| Gas pipe temperature sensor malfunction of E | Flash 26 times | ||
| Exit of the condenser tube sensor malfunction | Flash 27 times | ||
| Correspondence is normal | Flash n times (n=indoor unit number) | ||
| Communication failure between indoor unit and outdoor unit | Often bright (indoor unit all Communication failure) | ||
Maintenance
Regular checks, maintenance, and care should be performed by professional personnel to prolong the unit's lifespan.
8.1 Outdoor Heat Exchanger
Clean the outdoor heat exchanger every two months. Use a vacuum cleaner with a nylon brush to remove dust and debris. Compressed air can be used to blow away dust if available. Never use water to wash the heat exchanger.
8.2 Drain Pipe
Regularly check the drain pipe for clogs to ensure smooth condensate drainage.
8.3 Notice before Seasonal Use
- Check if the inlet/outlet of the indoor/outdoor unit is clogged.
- Verify that the ground wire is reliably earthed.
- Check if the remote wireless controller's batteries have been replaced.
- Ensure the filter screen is securely fitted.
- After a long period of shutdown, turn on the main power switch 8 hours before re-operation to preheat the compressor crankcase.
- Check if the outdoor unit is installed firmly. If any abnormality is found, contact the Blueridge appointed service center.
8.4 Maintenance after Seasonal Use
- Turn off the unit's main power supply.
- Clean the filter screen and both indoor and outdoor units.
- Remove dust and debris from the indoor and outdoor units.
- If rusting occurs, apply anti-rust paint to prevent its spread.
8.5 Parts Replacement
Purchase replacement parts from a Blueridge appointed service center or dealer as needed.
NOTICE! During airtight and leakage tests, never mix oxygen, ethyne, or other dangerous gases into the refrigeration circuit. For safety, use nitrogen or refrigerant for such tests.
9 After-sales Service
For any quality issues or inquiries regarding your purchased air-conditioning unit, please contact the local after-sales service agency designated by Blueridge.
Warranty Requirements:
- The initial startup of the unit must be performed by professional personnel from a Blueridge appointed service center.
- Only Blueridge manufactured accessories may be used on the machine.
- All instructions provided in this manual must be followed.
- The warranty will be automatically void if any of the above conditions are not met.
