PCI Series aircore 700 Single Split
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Product Information
Specifications
- Models: PCI-2.0UFA1NQ, PCI-2.5UFA1NQ, PCI-3.0UFA1NQ,
PCI-4.0UFA1NQ, PCI-5.0UFA1NQ, PCI-6.0UFA1NQ, PCI-6.5UFA1NQ - Indoor Unit Type: 4-way Cassette Type
- Temperature Range:
- Cooling Operation: 32°C DB / 23°C WB (Maximum), 21°C DB / 15°C
WB (Minimum) - Heating Operation: 27°C DB (Maximum), 20°C DB (Minimum)
- Cooling Operation: 32°C DB / 23°C WB (Maximum), 21°C DB / 15°C
Product Usage Instructions
1. Safety Summary
Follow all safety instructions provided in the manual to ensure
safe operation of the unit.
2. Name of Parts
Refer to the manual for a detailed description of all parts of
the indoor unit.
3. Indoor Unit Installation
Proper installation is crucial for the unit’s performance.
Follow these steps:
- Unit Installation: Detailed instructions for installing the
indoor unit can be found starting from page 11 of the manual.
4. Refrigerant Piping
Ensure correct refrigerant piping to maintain the unit’s
efficiency.
FAQ
Q: Can I use the air conditioner for purposes other than
cooling or heating?
A: It is not recommended to use the air conditioner for purposes
such as drying clothes or refrigerating foods. Stick to the
intended use to ensure proper functioning and longevity of the
unit.
Q: How should I dispose of this product?
A: This product should not be disposed of with other household
wastes. To dispose of it responsibly, recycle it following local
guidelines or return it to the retailer for safe recycling.
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OPERATION INSTALLATION & MAINTENANCE MANUAL
SINGLE SPLIT INVERTER SERIES INDOOR UNITS
MODELS 4-WAY CASSETTE TYPE PCI-2.0UFA1NQ PCI-2.5UFA1NQ PCI-3.0UFA1NQ PCI-4.0UFA1NQ PCI-5.0UFA1NQ PCI-6.0UFA1NQ PCI-6.5UFA1NQ
EN OPERATION INSTALLATION AND MAINTENANCE MANUAL
Scan the code to get the electronic manual.
P02133Q
IMPORTANT NOTICE
· Hitachi pursues a policy of continuous improvement in design and performance of products. The right is therefore reserved to vary specifications without notice.
· Hitachi cannot anticipate every possible circumstance that might involve a potential hazard. · This heat pump air conditioner is designed for human comfort air conditioning only. Do not use this
heat pump air conditioner for other purposes such as drying clothes, refrigerating foods or for any other cooling or heating purposes.
· The installer and system specialist shall ensure safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available. British Standard, BS4434 or Japan Standard, KHKS0010.
· No part of this manual may be reproduced without written permission. · This manual should be considered as a permanent part of the air conditioning equipment and should
remain with the air conditioning equipment.
· Signal words (DANGER, WARNING, CAUTION and NOTE) are used to identify levels of hazard seriousness. Definitions for identifying hazard levels are provided below with their respective signal words.
DANGER indicates a hazardous situation which, if not avoided, will result in ! DANGER : death or serious injury.
! WARNING : ! CAUTION :
WARNING indicates a hazardous situation that, if not avoided, could result in death or serious injury.
CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTE :
NOTE is useful information for operation and/or maintenance.
· It is assumed that this heat pump air conditioner will be operated and serviced by persons conversant in English. If this is not the case, the distributor should add safety, caution and operating signs in the
native language.
· If you have any questions, contact your distributor or dealer of Hitachi. · This unit shall be installed in accordance with local codes and regulations. · Do not install the unit in the following places. It may cause a fire, deformation, corrosion or failure.
Places where oil (including machinery oil) may be present in quantities. Places where a lot of sulfide gas drifts such as in a hot spring. Places where flammable gas may generate or flow. Places where strong salty wind blows such as coast regions. Places with an atmosphere of acidity or alkalinity.
· This manual gives a common description and information for this heat pump air conditioner which you operate as well as for other models.
· This system has been designed and tested to operate within the indoor temperature limits as stated below. The manufacturer cannot guarantee satisfactory performance if the unit is operated for
prolonged periods outside of these limits.
(oC)
Temperature Range
Maximum
Minimum
Cooling Operation
32 DB / 23 WB
21 DB / 15 WB
Heating Operation
27 DB
20 DB
DB: Dry Bulb WB: Wet Bulb
Correct Disposal of this product
This marking indicates that this product should not be disposed with other household wastes. To prevent possible harm to environment or human health from uncontrolled waste disposal, recycle it responsibly to promote the sustainable reuse of material resources. To return your used device, please use the return and collection systems or contact the retailer where the product was purchased. They can take this product for
environmental safe recycling. -i-
CHECKING PRODUCT RECEIVED
· Upon receiving this product, inspect it for any shipping damage. Claims for damage, either apparent or concealed, should be filed immediately with the shipping company.
· Check the model number, electrical characteristics (power supply, voltage and frequency) and accessories to determine if they are correct.
The standard utilization of the unit shall be explained in these instructions. Therefore, the utilization of the unit other than those indicated in these instructions is not recommended. Please contact your local agent, as the occasion arises. Hitachi’s liability shall not cover defects arising from the alteration performed by a customer without Hitachi’s consent in a written form.
Indoor Unit Type List
Indoor Unit Type 4-way Cassette Type
Standard Capacity (HP)
2.0
2.5
3.0
4.0
5.0
6.0
6.5
: Available in ANZ : Available in ANZ and Singapore
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Table of Contents
1. Safety Summary …………………………………………………………………………………………………………………………..1 2. Name of Parts ……………………………………………………………………………………………………………………………..10 3. Indoor Unit Installation ……………………………………………………………………………………………………………….10
3.1 Unit Installation……………………………………………………………………………………………………………………..11 4. Refrigerant Piping………………………………………………………………………………………………………………………..14
4.1 Piping Connection………………………………………………………………………………………………………………….14 5. Drain Piping ………………………………………………………………………………………………………………………………..15
5.1 General Information ………………………………………………………………………………………………………………15 5.2 Drain Pipe Connection ……………………………………………………………………………………………………………16 6. Electrical Wiring…………………………………………………………………………………………………………………………..17 6.1 General Information……………………………………………………………………………………………………………….17 6.2 Electrical Wiring Connection for Indoor Unit…………………………………………………………………………….18 6.3 Settings of Dip Switches …………………………………………………………………………………………………………19 7. Remote Controller Operation ……………………………………………………………………………………………………….21 8. Installation of Optional Air Panel PHKF160PAQ1…………………………………………………………………………….21 8.1 Factory-supplied Accessories ………………………………………………………………………………………………….21 8.2 Installation…………………………………………………………………………………………………………………………….21 8.3 Wiring Connection for Air Panel……………………………………………………………………………………………….24 9. Maintenance ………………………………………………………………………………………………………………………………24 9.1 Take Out the Filter………………………………………………………………………………………………………………….24 9.2 Clean the Filter ………………………………………………………………………………………………………………………25 9.3 Reset of Filter Indication…………………………………………………………………………………………………………25 9.4 Safety and Control Device Setting……………………………………………………………………………………………25
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1. Safety Summary
1. Safety Summary
No part of this publication may be reproduced, copied, filed or transmitted in any shape or form without the permission of Hitachi-Johnson Controls. Within the policy of continuous improvement of its products, Hitachi-Johnson Controls reserves the right to make changes at any time without prior notification and without being compelled to introducing them into products subsequently sold. This document may therefore have been subject to amendments during the life of the product. Hitachi makes every effort to offer correct, up-to-date documentation. Despite this, printing errors cannot be controlled by Hitachi and are not its responsibility. As a result, some of the images or data used to illustrate this document may not refer to specific models. No claims will be accepted based on the data, illustrations and descriptions included in this manual. No type of modification must be made to the equipment without prior, written authorization from the manufacturer. During normal air conditioning system design work or unit installation, greater attention must be paid in certain situations requiring particular care in order to avoid injuries and damage to the unit, the installation or the building or property. Situations that jeopardize the safety of those in the surrounding area or that put the unit itself at risk will be clearly indicated in this manual. To indicate these situations, a series of special symbols will be used to clearly identify these situations. Pay close attention to these symbols and to the messages following them, as your safety and that of others depend on it.
! DANGER
· Hitachi is not able to foresee all the circumstances which may result in a potential danger. · Do not pour water in the indoor or outdoor unit. These products are fitted with electric components.
If water comes into contact with electric components, it will cause a serious electric shock.
· Do not handle or adjust the safety devices inside the indoor and outdoor units. The handling or adjustment of these devices may result in serious accident.
· Do not open the service cover or access panel of the indoor and outdoor units without disconnecting the main supply.
· In the event of fire, switch off the mains, put out the fire immediately and contact your service supplier.
· Check that the earth cable is correctly connected. · Connect the unit to a circuit breaker of the specified capacity, refer to “6.1 General Information” for
details.
· The storage of equipment should be in accordance with the manufacturer’s instructions. · Do not install pipe work with diameters that are not specified for that model. · Do not ground units to water pipes, gas pipes, telephone wires, or lightning rods as incomplete
grounding can cause a severe shock hazard resulting in severe injury or death. Additionally, grounding to gas pipes could cause a gas leak and potential explosion causing severe injury or death.
· Do not install unit in an area where flammable materials are present due to risk of explosions that can cause serious injury or death.
· Safely dispose all packing and transportation materials in accordance with federal/state/local laws or ordinances. Packing materials such as nails and other metal or wood parts, including plastic packing materials used for transportation may cause injuries or death by suffocation.
· Refrigerant gas is heavier than air and replaces oxygen. A massive leak can lead to oxygen depletion, especially in basements, and an asphyxiation hazard could occur leading to serious injury or death.
· If refrigerant gas leaks during installation, ventilate the area immediately. Refrigerant gas may produce toxic gas if it comes into contact with fire. Exposure to this gas could cause severe injury or death.
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1. Safety Summary
! WARNING
· The air conditioning system should only be installed by qualified personnel, with the necessary resources, tools and equipment, who are familiar with the safety procedures required to successfully carry out the installation. Installation must be done in accordance with this installation manual. Improper installation may result in water leakage, electric shock, or fire.
· Pipe work and wiring installation shall be in compliance with national codes (ASHRAE15 or IRC). · Use only specified accessories and parts for installation work. Failure to use specified parts may result
in water leakage, electric shock, fire, or the unit falling.
· Install the air conditioner or heat pump on a foundation strong enough that it can withstand the weight of the unit. A foundation of insufficient strength may result in the unit falling and causing injuries.
· Take into account strong winds, typhoons, or earthquakes when installing. Improper installation may result in the unit falling and causing accidents.
· Make sure that a separate power supply circuit is provided for this unit and that all electrical work is carried out by qualified personnel licensed or certified in their jurisdiction according to local, state, and national regulations. An insufficient power supply capacity or improper electrical construction may lead to electric shock or fire.
· Make sure that all wiring is secured, that specified wires are used, and that no external forces act on the terminal connections or wires. Improper connections or installation may result in fire.
· When wiring, position the wires so that the electrical wiring box cover can be securely fastened. Improper positioning of the electrical wiring box cover may result in electric shock, fire, or the terminals overheating.
· Before touching electrical parts, turn off the unit. · Do not use means to accelerate the defrosting process (if possible) or to clean, other than those
recommended by the manufacturer.
· Assure that the maximum operating pressure is checked when connecting to Outdoor UNIT. · This unit <PCI-UFA1NQ> is a PARTIAL UNIT AIR CONDITIONER, shall only be connected to an appliance
suitable for the same refrigerant.
· This unit<PCI-UFA1NQ> is a PARTIAL UNIT AIR CONDITIONER, complying with PARTIAL UNIT requirements of IEC 60335-1 and IEC 60335-2-40, and must only be connected to other units that have been confirmed as complying to corresponding PARTIAL UNIT requirements of IEC 60335-1 and IEC 60335-2-40.
· System contains oversize protective earthing (grounding) terminal which shall be properly connected. · When a fire occurs, cut off the power supply immediately.
! CAUTION
· Refrigerant leaks may hinder respiration as the gas displaces the air in the room. It is assumed that this heat pump air conditioner will be operated and serviced by English speaking people. If this is not the case, the customer should be added safely, caution and operating signs in the native language.
· Fit the indoor unit, the outdoor unit, the remote controller and the cable at a minimum of 3 meters away from sources of strong radiation from electromagnetic waves, such as medical equipment.
· Do not use sprays, such as insecticides, varnishes or enamels or any other flammable gas within a meter of the system.
· If the circuit breaker or supply fuse of the unit comes on frequently, stop the system and contact the service supplier.
· Do not carry out maintenance or inspection work yourself. This work must be carried out by qualified service personnel with suitable tools and resources for the work.
· Do not place any foreign material (branches, sticks, etc.) in the air inlet or outlet of the unit. These units are fitted with high-speed fans and contact with any object is dangerous.
· If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
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1. Safety Summary
· Means for disconnection from the supply mains, which have a contact separation in all poles that provide full disconnection under overvoltage category III conditions, must be incorporated in the fixed wiring in accordance with AS/NZS 3000.
· The maximum working pressure is 4.15 MPa. This maximum working pressure shall be considered when connecting the indoor unit to outdoor unit.
· As maximum allowable pressure is 4.15MPa, minimum allowable pressure is 2.21MPa, the wall thickness of field-installed pipes should be selected in accordance with the relevant local, state, and national regulations.
· Do not touch the electrical components with fingers, or may cause electric shock. · This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Cleaning and user maintenance shall not be made by children without supervision.
· Wear adequate personal protective equipment (protective gloves, safety glasses,…) when installing, maintaining or servicing the system.
· The heat exchanger fins are sharp enough to cut. To avoid injury, wear gloves or cover the fins while working around them.
· Do not touch the refrigerant pipes during and immediately after operation as the refrigerant pipes may be hot or cold, depending on the condition of the refrigerant flowing through the refrigerant piping, compressor, and other refrigerant cycle parts. Your hands may suffer burns or frostbite if you touch the refrigerant pipes. To avoid injury, give the pipes time to return to normal temperature or, if you must touch them, be sure to wear proper gloves.
· Install drain piping to ensure proper drainage. Improper drain piping may result in water leakage and property damage.
· Insulate piping to prevent condensation. · Be careful when transporting the product. · Do not install the air conditioner or heat pump in the following locations:
Where a mineral oil mist or oil spray or vapor is produced, for example, in a kitchen. Plastic parts may deteriorate and fall off or result in water leakage.
Where corrosive gas, such as sulfurous acid gas, is produced. Corroding copper pipes or soldered parts may result in refrigerant leakage.
Near machinery emitting electromagnetic waves. Electromagnetic waves may disturb the operation of the control system and cause the unit to malfunction.
Where flammable gas may leak, where there is carbon fiber, or ignitable dust suspension in the air, or where volatile flammables such as thinner or gasoline are handled. Operating the unit in such conditions can cause a fire.
· Servicing shall be performed only as recommended by the manufacturer and licensed or certified in their jurisdiction.
· This air conditioner has been designed for standard air conditioning for human beings. For use in other applications, please contact your Hitachi dealer or service contractor.
· Failure to observe the instructions for installation, use and operation described in this documentation may result in operating failure including potentially serious faults or even the destruction of the air conditioning system.
· It is assumed that the air conditioning system will be installed and maintained by responsible personnel trained for the purpose. If this is not the case, the customer should include all the safety, caution and operating signs in the native language of the personnel responsible.
· Do not install the unit in places where silicon gas is present. Any silicon gas deposited on the surface of the heat exchanger will repel water. As a result, the condensate water will splash out of the collection tray and into the electrical box. Water leaks or electrical faults may eventually be caused.
· 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 use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
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1. Safety Summary
NOTES:
· The air in the room should be renewed and the room ventilated every 3 or 4 hours. · The indoor unit should be positioned where the unit and interunit wires (outdoor to indoor) are at
least 1m away from any televisions or radios. (The unit may cause interference with the picture or sound.) Depending on the radio waves, a distance of 1m may not be sufficient to eliminate the noise.
· Dismantling the unit, treatment of the refrigerant, oil and additional parts must be done in accordance with the relevant local, state, and national regulations. Explanation of symbols displayed on the indoor unit or outdoor unit
These symbols show that appliance uses a flammable refrigerant. If the
WARNING refrigerant is leaked and exposed to an external ignition source, there is
A2L
a risk of fire.
CAUTION This symbol shows that the operation manual should be read carefully.
CAUTION CAUTION
This symbol shows that a service personnel should be handling this equipment with reference to the installation manual.
This symbol shows that information is available such as the operating manual or installation manual.
Precautions for R32
This air conditioner uses R32 flammable refrigerant. Air conditioner with R32 refrigerant, if not be treated carefully, may cause serious harm to the human body or surrounding things. Please read the following instructions carefully before installing, using and maintaining.
! WARNING
· The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater).
· Do not pierce or burn the refrigerant system to avoid the leakage. · Be aware that refrigerants might not contain an odour. · Do not charge R32 into system other than those designated for R32.
Do not charge R32 system with oil other than those designated for R32.
· Do not use a reclaim cylinder other than an R32 reclaim cylinder. · Be sure to only use refrigerant piping approved for use with R32 refrigerant. The use of unapproved
piping may result in explosive rupture.
· The pipe-work shall be securely mounted and guarded from physical damage. · The national gas regulations shall also be observed when field-installed refrigerant pipes are
required.
· Field-made refrigerant joints indoors shall be tightness tested. The test method shall have a sensitivity of 5 grams per year of refrigerant or better under a pressure of at least 0,25 times the maximum allowable pressure. No leak shall be detected; Mechanical connections shall be accessible for maintenance purposes.
· The joints shall not be reused, unless after re-flaring the pipe. · Joints made in the installation between parts of the refrigerating system, with outdoor part charged,
shall be made in accordance with the following. A brazed, welded, or mechanical connection shall be made before opening the valves to permit
refrigerant to flow between the refrigerating system parts. A vacuum valve shall be provided to evacuate the interconnecting pipe and/or any uncharged refrigerating system part. Mechanical connectors used indoors shall comply with ISO 14903. When mechanical connectors are reused indoors, sealing parts shall be renewed. When flared joints are reused indoors, the flare part shall be re-fabricated. Refrigerant tubing shall be protected or enclosed to avoid damage.
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1. Safety Summary
· That after completion of field piping for split systems, the field pipework shall be pressure tested with an inert gas and then vacuum tested prior to refrigerant charging, according to the following requirements:
The minimum test pressure for the low side of the system shall be the low side design pressure and the minimum test pressure for the high side of the system shall be the high side design pressure, unless the high side of the system, cannot be isolated from the low side of the system in which case the entire system shall be pressure tested to the low side design pressure.
· The appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as specified.
· The appliances are designed for use at altitudes less than 2000m, may cause serious harm to the human body or surrounding things if used at altitudes 2000m and above.
· Keep any required ventilation openings clear of obstruction, don’t block air inlet or air outlet, Otherwise, the cooling or heating capacity will be weakened, even cause system stop operating or safety hazard.
· Maintenance or repair of air conditioner using R32 refrigerant must be carried out after security check to minimize risk of incidents.
· Ensure no following objects under the indoor unit: Microwaves, ovens and other hot objects. Computers and other high electrostatic appliances. Sockets that plug frequently.
· Installation, maintenance, service, repairing, removing and disposal operations, shall only be performed by the qualified personnel or recommended by the manufacturer.
· Every working procedure that affects safety means shall only be carried out by competent persons. Examples for such working procedures are: breaking into the refrigerating circuit; opening of sealed components; opening of ventilated enclosures.
· Precautions shall be taken to avoid excessive vibration or pulsation to refrigerating piping for the transport and installation.
· Protection devices, piping and fittings shall be protected as far as possible against adverse environmental effects, for example the danger of water collecting and freezing in relief pipes or the accumulation of dirt and debris.
· When installing or repairing the air conditioner and the connecting line is not long enough, the entire connecting line shall be replaced with the connecting line of the original specification; extension is not allowed.
· Refrigerating systems shall be so installed as to minimize the likelihood of hydraulic shock damaging the system.
· The appliance shall be stored and installed so as to prevent mechanical damage from occurring. · Work shall be undertaken under a controlled procedure so as to minimise the risk of a flammable gas
or vapour being present while the work is being performed.
· All maintenance staff and others working in the local area shall be instructed on the nature of work being carried out. Work in confined spaces shall be avoided.
· The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the non-existence of potentially toxic or flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with all applicable refrigerants, i.e. nonsparking, adequately sealed or intrinsically safe.
· If any hot work is to be conducted on the refrigerating equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO2 fire extinguisher adjacent to the charging area.
· No person carrying out work in relation to a refrigerating system which involves exposing any pipe work shall use any sources of ignition in such a manner that it can lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repairing, removing and disposal, during which refrigerant can possibly be released to the surrounding space. Prior to work taking place, the area around the equipment is to
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1. Safety Summary
be surveyed to make sure that there are no flammable hazards or ignition risks. “No Smoking” signs shall be displayed.
· Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it
externally into the atmosphere.
· Anti-static precautions is necessary for installing and maintenance, for example, wear pure cotton clothes and gloves.
· If R32 refrigerant leakage occurs during the installation, operators shall immediately detect the concentration in indoor environment until it reaches a safe level. If the leakage affects the performance of the machine, please immediately stop the operation, and the air conditioner must be vacuumed firstly and be returned to the maintenance station for processing.
· Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times the maintenance and service guidelines of this manual shall be followed. If in doubt, consult the manufacturer’s technical department for assistance. The following checks shall be applied to installations using R32:
The refrigerant charge is in accordance with the room size within which the refrigerant containing parts are installed.
The ventilation machinery and inlets and outlets are operating adequately and are not obstructed; and shall keep away from heat source, flammable or explosive conditions.
Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected.
Refrigerating pipe or components are installed in a position where they are unlikely to be exposed to any substance which can corrode refrigerant containing components, unless the components are constructed of materials which are inherently resistant to being corroded or are suitably protected against being so corroded.
· Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be reported to the owner of the equipment so all parties are advised. Initial safety checks shall include:
that capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking. that no live electrical components and wiring are exposed while charging, recovering or purging the
system. that there is continuity of earth bonding.
· Sealed electrical components shall not be repaired. · Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges
or any other adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans.
· Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used.
· Air-tightness test shall be carried out as guaranteed. Charging oxygen, acetylene or other flammable and toxic gases during leakage inspection and air-tightness test may lead to explosions. It recommended to use nitrogen gas for this test.
· The following leak detection methods are deemed acceptable for all refrigerant systems.
Electronic leak detectors may be used to detect refrigerant leaks but, in the case of flammable refrigerants, the sensitivity can be inadequate, or can need re-calibration. (Detection equipment shall be calibrated in a refrigerant-free area.) Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed, and the appropriate percentage of gas (no more than 25 %) is confirmed.
The fluid used in leak detection is applicable to most refrigerants. But do not use chloride solvents to prevent the reaction between chlorine and refrigerants and the corrosion of copper pipeline.
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1. Safety Summary
If a leak is suspected, all naked flames shall be removed/extinguished. If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered
from the system, or isolated in a part of the system remote from the leak. Removal of refrigerant shall be according to this manual.
· When breaking into the refrigerant circuit to make repairs or for any other purpose conventional procedures shall be used. However, for flammable refrigerants it is important that best practice is followed since flammability is a consideration. The following procedure shall be adhered to: safely remove refrigerant following local and national regulations; evacuate; purge the circuit with inert gas; continuously flush with inert gas when using flame to open circuit; open the circuit.
· The refrigerant charge shall be recovered into the correct recovery cylinders. · Purging of the refrigerant circuit shall be achieved by breaking the vacuum in the system with inert
gas and continuing to fill until the working pressure is achieved, then venting to atmosphere, and finally pulling down to a vacuum. This process shall be repeated until no refrigerant is within the system. The system shall be vented down to atmospheric pressure to enable work to take place.
· Ensure that the outlet of the vacuum pump is not close to any potential ignition sources and that ventilation is available.
· In addition to conventional charging procedures, the following requirements shall be followed.
Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as possible to minimise the amount of refrigerant contained in them.
Cylinders shall be kept in an appropriate position according to the instructions. Ensure that the refrigerating system is earthed prior to charging the system with refrigerant. Label the system when charging is complete (if not already labelled). Extreme care shall be taken not to overfill the refrigerating system.
· Prior to recharging the system, it shall be pressure-tested with the appropriate purging gas. The system shall be leak-tested on completion of charging but prior to commissioning. A follow up leak test shall be carried out prior to leaving the site.
· Before carrying out the decommissioning procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of recovered refrigerant. It is essential that electrical power is available before the task is commenced. Become familiar with the equipment and its operation. Isolate system electrically. Before attempting the procedure, ensure that: (a) mechanical handling equipment is available, if required, for handling refrigerant cylinders; (b) all personal protective equipment is available and being used correctly; (c) the recovery process is supervised at all times by a competent person; (d) 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. Make sure that the cylinder is situated on the scales before recovery takes place. Start the recovery machine and operate in accordance with instructions. Do not overfill cylinders (no more than 80% volume liquid charge). Do not exceed the maximum working pressure of the cylinder, even temporarily. 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. Recovered refrigerant shall not be charged into another refrigerating system unless it has been cleaned and checked.
· Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label shall be dated and signed. For appliances containing flammable refrigerants, ensure that
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1. Safety Summary there are labels on the equipment stating the equipment contains flammable refrigerant.
· When removing refrigerant from a system, either for servicing or decommissioning, it is required to follow good practice so that all refrigerants are removed safely.
· When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge is available. All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant (i.e. special cylinders for the recovery of refrigerant). Cylinders shall 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.
· The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for the recovery of the flammable refrigerant. Consult manufacturer if in doubt. In addition, a set of calibrated weighing scales shall be available and in good working order. Hoses shall be complete with leak-free disconnect couplings and in good condition.
· The recovered refrigerant shall be processed according to local legislation in the correct recovery cylinder, and the relevant waste transfer note arranged. Do not mix refrigerants in recovery units and especially not in cylinders.
· If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain that flammable refrigerant does not remain within the lubricant. The compressor body shall not be heated by an open flame or other ignition sources to accelerate this process. Draining of oil from a system shall be carried out safely.
· Disposal of equipment shall follow the national regulations. · The storage of the appliance should be in accordance with the applicable regulations or instructions,
whichever is more stringent.
· The maximum number of pieces of equipment permitted to be stored together notes by each product package information and standard follows ISO 780-2015 or local regulation.
· After completing the installation work, check that the refrigerant gas does not leak throughout the system.
· When installing or relocating the air conditioner, do not let any other substances besides R32, such as air, enter the refrigerant circuit. The presence of air or foreign matter in the refrigerant circuit causes an abnormal pressure rise, which may result in equipment damage and even injury.
· Refrigerant R32 in the system must be kept clean, dry, and tight.
Clean and Dry — Foreign materials (including mineral oils such as SUNISO oil or moisture) should be prevented from getting into the system.
Tight — R32 does not contain any chlorine, does not destroy the ozone layer, and does not reduce the earth’s protection again harmful ultraviolet radiation. R32 can contribute to the greenhouse effect if it is released.
· Only use tools for R32, such as a gauge manifold, charge hose, gas leak detector, reverse flow check valve, refrigerant charge base, vacuum gauge, or refrigerant recovery equipment.
· If the conventional refrigerant and refrigerator oil are mixed in R32, the refrigerant may deteriorate.
-8-
1. Safety Summary
· The pipe-work shall not be installed in an unventilated space, if that space is smaller than Amin(minimum required room area) in table below, where installed pipe-work shall has no connecting
joints.
· Appliance shall be installed, operated and stored in a room with a floor area larger than Amin in table below.
· The installation of pipe-work shall be kept to a room with a floor area larger than Amin in table below. · The unit has requirements on the minimum required room area (Amin) used with different refrigerant
charging amount (m). The total amount of refrigerant charged in the system corresponds to the room area installed in the table below. The calculation result is based on the cassette-mounted unit, and the installation height is no less than 2.2m.
Minimum required room area for each refrigerant amount charged
m(kg) 1.842 1.843
4-Way Cassette (for single room)
Installation Height: 2.2m
Amin(m2) –
m(kg) 2.80
Amin(m2) 8.291
m(kg) 4.00
5.458 3.00 8.884 4.20
Amin(m2) 11.845 12.437
2.00 5.922 3.20 9.476 4.40 13.029
2.20 6.515 3.40 10.068 4.60 13.622 2.40 7.107 3.60 10.660 4.80 14.585
2.60 7.699 3.80 11.253 5.00 15.826
-9-
2. Name of Parts
10
89 6 5
4 3 7 15
14
12
11
13
17 16
19 18 20
950
40
2. Name of Parts
Item.
Part Name
Unit : mm
1 Fan 2 Fan Motor
3 Heat Exchanger
4 Distributor
5 Strainer
6 Protective Cover(PCI(4.0-6.5) only)
7 Electrical Box
8 Refrigerant Gas Pipe Connection
9 Refrigerant Liquid Pipe Connection
10 Drain Pipe Connection
11 Drain Discharge Mechanism
2
12 Float Switch
950
13 Drain Pan
14 Rubber Plug for Drain
1
15 Air Panel PHKF160PAQ1
16 Air Inlet Grille
17 Air Filter
18 Air Outlet
C
19 Air Inlet
20 Cover for Corner Pocket
C PCI(2.0-3.0):238 PCI(4.0-6.5):288
3. Indoor Unit Installation
! DANGER
· Check to ensure that the accessories are packed with the indoor unit. · Do not install the indoor units outdoors. If installed outdoors, an electric hazard or electric leakage will
occur.
· Consider the air distribution from each indoor unit to the space of the room, and select a suitable location so that uniform air temperature in the room can be obtained. The unit must not be installed below 2.5 meters from the floor level, with a recommend installation height between 2.5 and 3 meters. If the unit is installed higher than 3 meters, it is also recommended that a fan be utilized to obtain uniform air temperature in the room.
· Avoid obstacles which may hamper the air intake or the air discharge flow. · Pay attention to the following points when the indoor units are installed in a hospital or other places
where there are electronic waves from medical equipment, etc.
· Do not install the indoor units where electromagnetic wave is directly radiated to the electrical box, remote control cable or remote control switch.
· Prepare a steel box and install the remote control switch in it. Prepare a steel conduit tube and wire the remote control cable in it. Then connect the ground wire with the box and tube.
· Install a noise filter when the power supply emits harmful noises. · This unit is exclusive nonelectrical heater type indoor unit. It is prohibited to install an electrical heater
in the field.
· Do not put any foreign material into the indoor unit and check to ensure that none exist in the indoor unit before the installation and test running. Otherwise, a fire or failure, etc., may occur.
! CAUTION
· Do not install the indoor units in a flammable environment to avoid a fire or an explosion. · Do not install the indoor unit in the laundry. · Check to ensure that the ceiling slab is strong enough. If not strong enough, the indoor unit may fall
-10-
3. Indoor Unit Installation
down on you.
· Do not install the indoor units in a machinery shop or kitchen where vapor from oil or mist flows to the indoor units. The oil will deposit on the heat exchanger, thereby reducing the indoor unit performance, and may deform. In the worst case, the oil damages the plastic parts of the indoor unit.
· To avoid any corrosive action to the heat exchangers, do not install the indoor units in an acid or alkaline environment.
· When lifting or moving the indoor unit, use appropriate slings to avoid damage and be careful not to damage the insulation material on units’ surface.
3.1 Unit Installation
3.1.1 Factory-supplied Accessories
Accessory Washer with insulation material (M10)
Washer (M10)
Qty.
Purpose
4 For unit installation
4
Accessory Pipe insulation Pipe insulation
Drain hose Hose clamp
1 For drain hose connection
1
Cord clamp Cord clamp
Ring core
1
Wire clamp
1
Wire Harness
1
CN33
*: Factory-supplied in Singapore only.
For antielectromagnetic interference of transmission cables between outdoor and indoor units
For fixing wirings (only in PCI 2.0 / 2.5/ 3.0UFA1NQ) For human sensor panel installation, connected on CN33 port of main board
Insulation (5Tx 50 x200)
Insulation (5Tx 270 x270)
Screw (M4x10)
Wireless remote controller* (PC-LH8QE)
Qty. Purpose
1 For refrigerant piping
1 connection
For fixing 2 remote control
switch wiring, louver sensor 7 and insulation of piping
For covering 1 wiring
connection
For covering 1 drain
connection
For fixing wire
2
clamps(only in PCI 2.0 / 2.5/
3.0UFA1NQ)
1
For controlling the unit
3.1.2 Initial Check
1. Install the indoor unit with a proper clearance around it. Pay careful attention of installation direction for the piping, wiring and maintenance working space as shown below.
2. Provide a service access door near the unit piping connection area on the ceiling.
Piping Connection
(mm)
1500
1500
1500
1500 1500
1500
3000
1500
1500
Service
1500
1500
Service
Access Door
Access Door
Condensate Pipe
Connection
3. Check space between ceiling and false ceiling is enough as indicated below. -11-
3. Indoor Unit Installation
4. Check the ceiling surface is flat for the air panel installation work.
Clearance: 10-20mm
Unit High In False Ceiling
Unit (HP) 2.0 to 3.0 4.0 to 6.5
A(mm) 238 288
A
5. Check down slope Pitch of Drain Piping is following the specifications indicated in chapter “5. Drain Piping”.
Opening of false ceiling
· Cut out the area for the indoor unit in the false ceiling and install suspension bolts, as shown below.
Dimension of opening
(mm)
20
860 to 910
20
840(Unit size)
4- 12 × 32 Holes
760
(Dimension of suspension bolts)
20
(for suspension bolt)
860 to 910
Dimension of opening
840 (Unit size)
760 (Dimension of suspension bolts)
20
Piping connection side
Drain piping connection side
4-Positions of suspension bolts
(M10 or W3/8)
(Field-supplied)
· Check to ensure that the ceiling is horizontally level, otherwise water can not flow. · Strength the opening parts of the false ceiling.
3.1.3 Installation
Mounting of suspension bolts
· Mount suspension bolts using M10 (W3/8) as size, as shown.
(mm)
For concrete slab:
For steel beam:
150 to 160
Insert(100 to 150kg)
Steel
Concrete Anchor Bolt(W3/8 or M10)
I-Beam
Suspension Bolt (W3/8 or M10)
Mounting of indoor unit
· Mount the nuts and the washers to the suspension bolts. Put the washer so that the surface with insulation can face downwards as shown below. (mm) Suspension Bolts(Field-supplied) Nut(Field-supplied) Washer with Insulation(Accessary)
Suspension Bracket(Attached Indoor Unit) Washer(Accessary) Nut(Field-supplied)
50
Approx.
100
Approx.50
Surface of Ceiling
-12-
3. Indoor Unit Installation
· Consider piping connection side before lifting indoor unit. · Lift the indoor unit by hoist and do not put any force on the drain pan. · Secure the indoor unit using the nuts and washers.
Suspension bolt
Suspension bracket
Drain pan
NOTES:
· If a false ceiling has already been installed, complete all piping and wiring work inside the ceiling before hooking-up the indoor unit.
· Secure the indoor unit using the nuts, and flat washers.
Adjusting of space between indoor units and false ceiling opening
Adjust the indoor unit to the correct position while checking with the pattern for installation.
Checking Scale for Dimension of Opening Pattern Board for Installation
Packing(Corrugated Board)
For ceiling already completed with panels
Attach this side of the scale to the inner side of the opening of the ceiling Indoor Unit
Attach this side of the scale to the lower side of the unit
Indoor Unit
Attach this side of the scale to the outer side of
the unit Checking Scale
Ceiling Panel
Checking Scale
Attach this side of the scale to the ceiling panel
Check the dimension of opening at each side of the unit
Ceiling not completed with panels yet
Check the height of the ceiling at each corner of the unit
Suspension Bolt
Pattern Paper for Installation
Dimension for Opening
Dimension for Opening
Surface of Ceiling
Screw(M6)
Unit
Pattern Board for Installation
-13-
4. Refrigerant Piping
Tighten the nuts of the suspension brackets after the adjustment is completed. Apply LOCK-TIGHT paint to the bolts and nuts in order to prevent them from loosening. If not done, abnormal noises or sounds may occur and the indoor unit may come loose.
4. Refrigerant Piping
4.1 Piping Connection
4.1.1 Piping Positions
(mm) Gas pipe connection Liquid pipe connection
84 90(Liquid pipe) 76(Gas pipe) 157(Liquid pipe) 140(Gas pipe)
30 95(Gas pipe) 160(Liquid pipe)
4.1.2 Size of Piping Connection
Piping size
Model PCI-2.0 to 3.0UFA1NQ PCI-4.0 to 6.5UFA1NQ
Liquid piping (mm(in.)) 6.35 (1/4) 9.53 (3/8)
Thickness of copper pipes
(mm(in.)) 6.35(1/4) 9.53(3/8) 12.7(1/2) 15.88(5/8)
Thickness (mm) 0.80 0.80 0.80 1.00
Gas piping(mm(in.)) 12.70 (1/2) 15.88 (5/8)
Torque (N·m(lbf.ft.)) 20(14.8) 40(29.5) 60(44.3) 80(59.0)
Flare Pipe Dimensions
90º+ 2º 45 º+ 2 º
A
0.4 ~ 0.8R
d
Diameter d
6.35(1/4) 9.53(3/8) 12.7(1/2) 15.88(5/8)
Unit: mm(in.) A +0
-0.4
R32 9.1 13.2 16.6 19.7
Flare Nut Dimensions
Nominal diameter (in.(mm)) 6.35(1/4) 9.53(3/8) 12.7(1/2) 15.88(5/8)
-14-
B (mm)
17 22 26 29
5. Drain Piping
5. Drain Piping
5.1 General Information
INCORRECT Incorrect: Upward Slope
CORRECT
1/25 to 1/100 Down-slope
Min.100mm (higer as possible)
Vinyl chiloride pipe(VP25)
This drain piping shall be separating from others pipes
Incorrect: Rising Part
Drain piping of unit side
Commmon drain piping(Min.VP30) (Down slope from rising part)
! CAUTION
· Do not create an upper-slope or rise for the drain piping, since drain water will flow back to the unit and leakage to the room will occur when the unit operation is stopped.
· Do not connect the drain pipe with sanitary or sewage piping or any other drainage piping. · When the common drain piping is connected with other indoor units, the connected position of each
indoor unit must be higher than the common piping. The pipe size of the common drain pipe must be large enough according to the unit size and number of unit.
· Drain piping will require insulating if the drain is installed in a location where condensation forming on the outside of drain pipe may drop and cause damage. The insulation for the drain pipe must be selected to insure vapor sealing and prevent condensation forming.
· Drain trap should be installed next to indoor unit. This trap must be designed to good practice and be checked with water (charged) and tested for correct flow. Do not tie or clamp the drain pipe and refrigerant pipe together.
NOTES:
· Install drainage in accordance with national and local codes. · After performing drain piping work and electrical wiring, check to ensure that the water flows
smoothly as in the following procedure.
Checking with drain-up mechanism and float switch
· Switch ON the power supply. · Pour approximately 2.0 to 2.5 liters of water gradually into the drain pan, then float switch up and
drain pump start working automatically.
· Check to ensure that the water flows smoothly inside the transparent drain pipe connection whether no water leakage occurs. When water cannot be found at the end of the drain piping, pour more water smoothly into the drain pan.
· If the water overflows from the drain pan, recheck the drain piping. · Switch OFF the power supply after.
NOTE:
· Pay attention to the thickness of the insulation when the left side piping is performed. If it is too thick, piping can not be installed in the unit.
-15-
5.2 Drain Pipe Connection
1. The position of the drain pipe connection is shown below.
(mm)
82
55
5. Drain Piping
184
2. Prepare a polyvinyl chloride pipe with a 32mm outer diameter. 3. Fasten the tubing to the drain hose with an adhesive and the factory-supplied clamp.
Hose band(accessory) Tightening torque:
3.0-3.5 N·m
Vinyl tape
Drain pipe connection for checking drainage
(transparent)
Elbow or vinyl chloride VP25 (Field-supplied)
Drain hose (accessory)
28mm
20±5mm Max. 300mm
Use vinyl chloride type adhesive
4. The drain piping must be performed with a down-slope pitch of 1/25 to 1/100. 5. a+b+c1100mm.
Ceiling
Hose band (accessary)
a(Max.300mm)
1 to 1.5m Support part
Max.850mm b
c~300mm 1/25 to 1/100 Down-slope
Drain hose(accessary)
6. Do not apply excessive force to the Drain Pipe connection. It could cause a damage. 7. Do not use a bent or twisted Drain Hose, it will cause water leakage. 8. Insulate the drain pipe after connecting the drain hose.
(mm)
Insulation (5T×270×270)(accessory) Wrap up the drain hose completely to cover the hose band.
NOTE:
· If there is excessive clearance between the drain pipe connection and the drain hose, add a sealing material between both parts in order to fit and not deform the drain hose.
Hose band(accessory)
-16-
6. Electrical Wiring
6. Electrical Wiring
6.1 General Information
! DANGER
· Turn OFF the main power switch to the indoor unit and the outdoor unit and wait for more than 10
minutes before electrical wiring work or a periodical check is performed.
· Check to ensure that the indoor fan and the outdoor fan have stopped before electrical wiring work or
a periodical check is performed.
·
Protect the wires, drain pipe, electrical parts, etc. from rats or other small animals. If not protected, rats may gnaw at unprotected parts and at the worst, a fire will occur.
· ·
The ground wire must be longer than the current-carrying conductor when installing the power cord. Using the air conditioner power terminal to transfer the power cord is strictly prohibited. A power distribution box can be used to expand the power distribution on the indoor unit.
·
Install a Power Source Main Switch in accordance with relevant local laws and regulations. The distance between switch contacts should large than 3.5mm when the switch is off.
! CAUTION
·
Use the ELB(Electric Leakage Breaker) which is above medium reaction speed (residual-current circuit breaker, action time of 0.1s or less). Otherwise, it may lead to electric shock or fire.
·
Use twisted shielded pair cable or shield pair cable for transmission cables between the indoor and the outdoor units, and connect the shielded part to the earth screw in the electrical box of the indoor
unit as shown below.
·
Wrap the field-supplied insulation around the wires, and plug the wiring connection hole with the seal material to protect the product from any condensate water or insects.
· · ·
Tightly secure the wires with the cord clamp inside the indoor unit. Lead the wires through the knockout hole in the side cover when using conduit. Secure the cable of the remote control switch using the cord clamp inside the electrical box.
General check 1. Make sure that the field-selected electrical components (main power switches, circuit breakers, wires,
conduit connectors and wire terminals) have been properly selected. Make sure that the components follow local codes and regulations. 2. Check to ensure that the power supply voltage is within ±10% of the rated voltage. 3. Check the capacity of the electrical wires. If the power source capacity is too low, the system cannot
be started due to the voltage drop. 4. Select the wire sizes according to the European Standard IEC 60335-1. Use the wires which are not
lighter than the ordinary tough rubber sheathed flexible cord (code designation H05RR-F) or ordinary polychloroprene sheathed flexible cord (code designation H05RN-F) when get power from outside.
Field Minimum Wire Sizes for Power Source
Model
PCI-2.0UFA1NQ PCI-2.5UFA1NQ PCI-3.0UFA1NQ PCI-4.0UFA1NQ PCI-5.0UFA1NQ PCI-6.0UFA1NQ PCI-6.5UFA1NQ
Power Source 220-240V ~50Hz
Maximum Current (A)
0.39 0.39 0.48 0.83 1.03 1.03 1.18
Power Cord Size IEC 60335-1
2.5mm2
Transmitting Cable Size IEC 60335-1
0.75mm2
Current(A)
i<6 6<i10 10<i16 16i25
Wire Size (mm2)
2.5 2.5 2.5 4
Current(A)
25<i32 32<i40 40<i63
63<i
*1 In the case that current exceeds 63A, do not connect cables in series. 5. Check to ensure that the ground wire is connected.
-17-
Wire Size (mm2)
6 10 16 *1
6. Electrical Wiring
6.2 Electrical Wiring Connection for Indoor Unit
1. The electrical wiring connection for the indoor unit is shown below.
Cord clamp
Wiring support plate
Electrical box
PCB (Printed circuit
board)
Piping cover
Wiring connection hole
Screw for wiring support plate under piping cover
Transition cable between indoor unit and outdoor unit Wiring for IR Receiver
Electrical box
Wiring support plate
Cord clamp
Electrical box cover
Screw (for electrical box cover)
Terminal board (white) DC 5V
Terminal board (black)
Earth wiring connection screw
Screw for wiring support plate
Power cord
2. Remove the electrical box cover (1 screw). 3. Loosen two (2) screws for the wiring support plate. 4. Connect the cable of an optional remote controller or an optional extension cable to the terminals
inside the electrical box through the connecting hole in the cabinet. 5. Connect the power cord and earth wirings to the terminals in the electrical box. 6. Connect the wirings between the indoor unit and the outdoor unit to the terminals in the electrical
box.
Outdoor Unit
N
Indoor Unit
L
TB2 (Transmission)
Transmission R,S,C
1
2
A
B
1
2
Communication cable
Power Supply (220-240V ~50Hz)
Earthing for Power Cord
Power Cord 220-240V~50Hz
Ring Core
1
/Transmissio2n
A /R.C.S B
/Transmission
Supply Terminal Block(TB1)
1 2
/R.C.S
A
B
EFS1 PCN7
EFR1
L5
DM1
TR1 CN1
CN25
Electrical Box
CN2 EF2
L1
L3
ON 12
ON 123456
ON 1234
ON 12
ON 123456 ON 123456
DSW3
DSW6
DSW9
TP
DSW5
DSW4
CN28
IC1
THM1 THM2 THM3
CN36 CN8
CN7 THU1
THM5
CN33
CN9
CN5
CN14 CN4 CN3
CN10 CN6
CN17 CN11
DSW7
Transmission Cable
Insert the transmission cable into the ring core and wrap it around ring core 3 times
Earthing for Transmission Cable and Wired Controller Wiring for IR Receiver
Communication Terminal Block(TB2)
· The ring core needs to be installed on the transmission cable between the fixed wire clamp and TB2, where additional insulation rubber is peeled off.
[Procedure] Insert the transmission cable into the ring core as shown in the below figure before connecting to the terminal board. Wrap the transmission cable around the ring core 3 times. Fix the cable and the ring core by using the band (accessory) in the electrical box.TB2
1
2
/ Transmission
A
B
/ R. C. S
Band
Transmission Cable
-18-
Ring Core
6. Electrical Wiring
6.3 Settings of Dip Switches
Quantity and position of dip switches
DSW4 DSW9
DSW5 DSW6
DSW3 DSW7
! CAUTION
· Before setting dips switches, firstly turn off power source and set the position of the dips switches. If the switches are set without turning off the power source, the contents of the setting are invalid. NOTES:
· The mark” “indicates position of dips switches. Figures show setting before shipment or after selection.
· Indication position of rotatory switches.
DSW3: capacity code setting
This dip switch is utilized for setting the capacity code which corresponds to the Horse Power of the
indoor unit.
DSW3
Factory setting:
2.0
2.5
3.0
4.0
5.0
6.0
6.5
DSW4: unit model code setting
This switch is utilized for setting the model code which corresponds to the indoor unit type.
Factory setting:
DSW4
-19-
DSW5: refrigerant cycle No. setting
Setting is required
DSW5
Factory setting:
DSW5 can be set from 0 to 63.
6. Electrical Wiring
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
21
21
21
21
2)) 2)) 2)) 2))
DSW6: unit No. setting, low air volume setting
Setting is required.
DSW6 (1st , 2nd digit) Unit number setting Set the position
ON
Set the position
OFF
1 23456
DSW6 (6th digit) Low air volume setting
Set the position
ON OFF 1 23456
Before delivery, the 1st and 2nd digit of DSW6 are set to “0”.
Before delivery, the 6th digit of DSW6 is set to “0”. Set the 6th digit of DSW6 to”1″ when setting low air volume.
No.1 Unit No.2 Unit No.3 Unit No.4 Unit
DSW6(4th digit), RWS1: regional identification
DSW6 (4th digit)
RSW1 (units digit)
Set the position
ON Set the position
OFF
1 2 34 56
901
Insert a flat head screw driver into the set position in the trench
1
ANZ/SG DSW6
ON OFF 2 34 56
78 78
45 6
23 23
Set No. 4 to OFF
Before delivery, DSW6 and RSW1 are set according to the regional requirement. When the a er-sales replacing PCBs, DSW6 and RSW1 should be set according to the regional requirement.
45 6
RSW1
901
Set to “0”
-20-
7. Remote Controller Operation
DSW9: Iconic panel setting
Iconic panel is an accessory part.
DSW9(3rd digit) Iconic Panel Setting
Refer to the right picture for the setting. Set the position
Before delivery, the setting of the 3rd digit is “0”. When installing iconic panel, the setting is changed to be “1”.
7. Remote Controller Operation
Please refer to the Installation and Operation manual of wired remote controller or wireless remote controller.
Region ANZ
Singapore
Wireless Remote Controller PC-LH8QE(optional) PC-LH8QE
Wired Remote Controller PC-ARFG2-Z
PC-ARFG2-A(optional)
8. Installation of Optional Air Panel PHKF160PAQ1
8.1 Factory-supplied Accessories
! CAUTION
When the air panel is unpacked, place it on insulation material, etc. to protect the sealing insulation from scratches. Check to ensure that the accessories are packed with the air panel.
Accessory Long Screw (M6 Cross Screw)
PHKF160PAQ1 4
Purpose For fixing air panel
If any of these accessories are not packed in the packing, please contact your contractor.
Region
ANZ Singapore
Wireless Remote Control Not Supported*1
Supported
Air Panel
Wired Remote Control Supported
Not Supported*2
*1: Can be supported by wireless remote controller(PC-LH8QE)+ IR receiver(PC-ALH5Q) bought seperately. *2: Can be supported by wired remote controller(PC-ARFG2-A) bought seperately.
8.2 Installation
Check the indoor unit height from the false ceiling surface
Check the distance between the indoor unit and the false ceiling. It is 12+5mm as shown below.
Indoor unit
Ceiling surface If not, adjust the distance by using the checking scale with maintaining the levelness of the indoor unit.
-21-
8. Installation of Optional Air Panel PHKF160PAQ1
Removing air intake grille from air panel 1. Push both ends of knobs at the air inlet grille toward the arrow direction, open the air inlet grille until
the angle of approximately 45° from the air panel surface. After lifting the air inlet grille keeping it inclined, draw the air inlet grille forward. (Remove the filament tape (4 portions) fixing the air filter.).
Air panel Air inlet grille
Corner pocket cover (4 portions)
Supporting string
Knob
2. Lift the grille keeping it inclined. 3. Draw the grille towards the open space after lifting.
NOTE:
· Perform the attaching work in the reverse procedure of removing for install the air intake grille. The air inlet grille can be attached from any 4 directions by rotating it. The air grille direction can be selected freely.
Installing air panel 1. Remove the cover of the corner pocket (4 portions). Remove pulling A part toward the arrow direction.
2. Pull down the U-shaped hook (at 2 positions) located at the indoor unit side. 3. Mount the air panel temporarily. Fit the corner position of the refrigerant pipe connection at the
indoor unit and the position stamped as “Ref. Pipe” Then, catch the C-shaped hinges (2 portions) onto the U-shaped hooks (2 portions). 4. Fix the air panel to the fixing plate by factory-supplied long screws (M6 cross screws).
Electrical box
Indoor unit
Refrigerant pipe connections
Fixing plate
Stamp refrigerant pipe
U-shaped hook Air panel
C-shaped hinge
Long screws(Q’ty 4)
-22-
8. Installation of Optional Air Panel PHKF160PAQ1
5. Tighten the long screws until touching the stopper to the fixing plate. Check to ensure that the distance between the fixing plate undersurface and the corner panel undersurface is 26mm.
6. When tightening the long screws to prevent air leakage and to be no gap between the false ceiling surface and the indoor unit, the inner circumference of the air panel (the position to attach the air inlet grille) may be slightly deformed. However, it is not abnormality.
Indoor unit
Fixing plate (indoor unit)
26
+5 0
12
False ceiling
Corner Long panel screw
! CAUTION
· If tighten long screws insufficient, may cause something wrong as below.
Air leakage
Smudge
Dewing
· If any gap has even though tighten long screws sufficient, readjust the height of indoor unit.
No gap shall exist
· It’s able to adjust the indoor unit height by using wrench from the corner pocket.
Wrench
· Too considerable adjustment of height cause dewing from drain-pan. · Do not turn the air louver by hand. If moved, the louver mechanism would be damaged.
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9. Maintenance
8.3 Wiring Connection for Air Panel
1. The following connectors are used in the air panel. Remove the tape fixing the wiring connectors on the air panel and pull out them as shown in the figure below. Connect them with the wiring connectors on the indoor unit.
Condition without air intake grille
Motor wiring for auto louver(on air panel) (connector for low voltage: 18 poles, white)
N L
/Transmission
1 2
/R.C.S
A
B
Electrical box
Motor wiring for auto louver(on indoor int) (connector for low voltage: 18 poles, white)
IR receiver wiring 2. After connecting the wire connection of the air panel, attach the air inlet grille. Perform the attaching
work in the reverse procedure of removing.
9. Maintenance
When the indication, ” ” is shown on the display of the remote control switch, take out the air filter according to the indicated steps for each unit. Do not operate the system without the air filter to protect the indoor unit heat exchanger against being clogged. Turn OFF the main power switch before taking out the filter. (The previous operation mode may appear.)
9.1 Take Out the Filter
1. Open the air inlet grille after pushing the two knobs toward the arrow mark.
Air inlet grille
Knob 2. Hold the lower side of the air inlet grille keeping it inclined. Remove the hooks of air filter from the air
inlet grille and remove the air filter.
Upper part of filter Hook
Air inlet grille Air filter
Hook Lower part of filter
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9. Maintenance
9.2 Clean the Filter
Clean the air filter according to the following steps. 1. Use a vacuum cleaner or let water flow onto the air filter to
removing the dirt from the air filter.
! CAUTION
· Do not use hot water higher than approximately 40oC.
2. Dry the air filter in the shade after shaking of moisture. 3. Do not use cleaner or other chemicals. 4. After the air filter is dried, attach and close correctly to the air inlet grille.
9.3 Reset of Filter Indication
After cleaning the air filter, reset the filter sign according to the remote control procedure.
9.4 Safety and Control Device Setting
Indoor Unit Capacity (HP) The fuse capacity on the control circuit of an indoor unit Protective temperature for freeze-proofing protection
Set the temperature difference
250V A OFF °C ON °C
°C
2.0-6.5 10 0 14 2
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MEMO
1184258
Hitachi-Johnson Controls Air Conditioning, Inc.
Add: 1-16-1, Kaigan Minato-ku, Tokyo, Japan
Specifications in this manual are subject to change without notice, in order that Hitachi-Johnson Controls may bring the latest innovations to customers.
2025.01 V05 Printed in China
Documents / Resources
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HITACHI PCI Series aircore 700 Single Split [pdf] Instruction Manual PCI-2.0UFA1NQ, PCI-2.5UFA1NQ, PCI-3.0UFA1NQ, PCI-4.0UFA1NQ, PCI-5.0UFA1NQ, PCI-6.0UFA1NQ, PCI-, 6.5UFA1NQ, PCI Series aircore 700 Single Split, aircore 700 Single Split, Single Split, Split |