Installation Manual
Page 2
... moist or uneven locatinons: Use a raised concrete pad or concrete blocks provide a solid, level foundation for Heat Pump Model): Install the outdoor unit on the air conditioner can cause dripping and water damage to prevent "sweating" that is an important part of wiring have been left inside a room to wall and floors. ... in hazards to you finish, remembering to the wiring diagram and these instructions when wiring. Provide snow...
... moist or uneven locatinons: Use a raised concrete pad or concrete blocks provide a solid, level foundation for Heat Pump Model): Install the outdoor unit on the air conditioner can cause dripping and water damage to prevent "sweating" that is an important part of wiring have been left inside a room to wall and floors. ... in hazards to you finish, remembering to the wiring diagram and these instructions when wiring. Provide snow...
Installation Manual
Page 4
... install the air conditioner. • Improper installation by a licensed electrician according to "Electric Facility Engineering Standard" and "Interior Wire Regulations" and the instructions given in this manual and always use flammable gas or combustibles near the air conditioner. • There is risk of fire, electric shock, explosion, or injury. Do not install, remove, or re-install the unit by the following instructions must be followed. Use the correctly rated breaker...
... install the air conditioner. • Improper installation by a licensed electrician according to "Electric Facility Engineering Standard" and "Interior Wire Regulations" and the instructions given in this manual and always use flammable gas or combustibles near the air conditioner. • There is risk of fire, electric shock, explosion, or injury. Do not install, remove, or re-install the unit by the following instructions must be followed. Use the correctly rated breaker...
Installation Manual
Page 5
... electric shock. Use a dedicated outlet for gas (refrigerant) leakage after installation or repair of product. • Low refrigerant levels may cause failure of control box and the panel. • If the cover and panel are used, fire or explosion may cause a problem for your neighbors. Ventilate before operating air conditioner when gas leaked out. • It may cause injury. If the air conditioner is mixed with the original refrigerant, the refrigerant...
... electric shock. Use a dedicated outlet for gas (refrigerant) leakage after installation or repair of product. • Low refrigerant levels may cause failure of control box and the panel. • If the cover and panel are used, fire or explosion may cause a problem for your neighbors. Ventilate before operating air conditioner when gas leaked out. • It may cause injury. If the air conditioner is mixed with the original refrigerant, the refrigerant...
Installation Manual
Page 6
... cause water leakage. 6 Outdoor Unit Do not block the inlet or outlet. • It may leak, generate heat, and cause a fire. Install and insulate the drain hose to operate. Be sure the installation area does not deteriorate with it is exposed to the terminals. • Inadequate connection and fastening may cause corrosion on the product. It is a consumer air conditioner, not a precision refrigeration system...
... cause water leakage. 6 Outdoor Unit Do not block the inlet or outlet. • It may leak, generate heat, and cause a fire. Install and insulate the drain hose to operate. Be sure the installation area does not deteriorate with it is exposed to the terminals. • Inadequate connection and fastening may cause corrosion on the product. It is a consumer air conditioner, not a precision refrigeration system...
Installation Manual
Page 7
... when cleaning or maintaining the air conditioner. • Be careful and avoid personal injury. Also support the outdoor unit at least 5 minutes before starting operation. • Packing materials, such as nails and other metal or wooden parts, may cause stabs or other problems. Auto-addressing should not carry the product if it cannot slip sideways. Safely dispose of the refrigerant piping during and after turning...
... when cleaning or maintaining the air conditioner. • Be careful and avoid personal injury. Also support the outdoor unit at least 5 minutes before starting operation. • Packing materials, such as nails and other metal or wooden parts, may cause stabs or other problems. Auto-addressing should not carry the product if it cannot slip sideways. Safely dispose of the refrigerant piping during and after turning...
Installation Manual
Page 8
... to downward gradient Outdoor unit foundation work The foundation must be level even Installation of outdoor unit Avoid short circuits and ensure sufficient space is allowed for service Duct work Make sure airflow is sufficient Heat insulation work Make sure no gaps are left between outdoor, indoor, remote controller, and option connections clear. (Prepare control circuit diagram) Sleeve and insert work Installation of indoor unit Refrigerant piping work Drain pipe work Take account of gradient of drain piping Check model name to...
... to downward gradient Outdoor unit foundation work The foundation must be level even Installation of outdoor unit Avoid short circuits and ensure sufficient space is allowed for service Duct work Make sure airflow is sufficient Heat insulation work Make sure no gaps are left between outdoor, indoor, remote controller, and option connections clear. (Prepare control circuit diagram) Sleeve and insert work Installation of indoor unit Refrigerant piping work Drain pipe work Take account of gradient of drain piping Check model name to...
Installation Manual
Page 12
... install unit to prevent environment pollution. CAUTION: • The wall thickness of the piping should comply with R22. Select the Best Location Select space for installing outdoor unit, which bears weight of unit • Note that drain flows out of unit when heating • With space for the designed pressure 3.8MPa • Since R410A is a mixed refrigerant, the required additional refrigerant must not be used...
... install unit to prevent environment pollution. CAUTION: • The wall thickness of the piping should comply with R22. Select the Best Location Select space for installing outdoor unit, which bears weight of unit • Note that drain flows out of unit when heating • With space for the designed pressure 3.8MPa • Since R410A is a mixed refrigerant, the required additional refrigerant must not be used...
Installation Manual
Page 24
If not, oxidized film can harm the copper piping or refrigerant oil. Refrigerant piping installation 12. WARNING When installing and moving the air conditioner to another site, be damaged. - Always use a non-oxidizing brazing material for brazing the parts and do not operate it until the refrigerant piping for the Outdoor and Indoor Units has been connected, a refrigerant leakage test has been performed and the evacuation process has been...
If not, oxidized film can harm the copper piping or refrigerant oil. Refrigerant piping installation 12. WARNING When installing and moving the air conditioner to another site, be damaged. - Always use a non-oxidizing brazing material for brazing the parts and do not operate it until the refrigerant piping for the Outdoor and Indoor Units has been connected, a refrigerant leakage test has been performed and the evacuation process has been...
Installation Manual
Page 37
... satisfied, then follow the following equation for human safety. Reconfirmation of refrigerant 4. Reduction of the amount of Outdoor Unit capacity and piping length 3. Total amount of the next 1. Adoption of effective opening part 2. Installation Manual 37 Installation of ventilation system : choose ordinary ventilation system or building ventilation system - Selection of air conditioning system: select one of refrigerant in piping work : Prepare for gas leakage) -
... satisfied, then follow the following equation for human safety. Reconfirmation of refrigerant 4. Reduction of the amount of Outdoor Unit capacity and piping length 3. Total amount of the next 1. Adoption of effective opening part 2. Installation Manual 37 Installation of ventilation system : choose ordinary ventilation system or building ventilation system - Selection of air conditioning system: select one of refrigerant in piping work : Prepare for gas leakage) -
Installation Manual
Page 44
... refrigerant or air is mixed with the service valve closed.) * Never perform air purging using refrigerant. • Vacuum drying: Use a vacuum pump that can measure down to 0.22 lb). To use a charge cylinder. Refrigerant piping installation (2) Vacuum Vacuum drying should be executed if there is set, all valves of refrigerant. (For the refrigerant additional charge) Too much or too little refrigerant will be opened.) WARNING When installing and moving the air conditioner...
... refrigerant or air is mixed with the service valve closed.) * Never perform air purging using refrigerant. • Vacuum drying: Use a vacuum pump that can measure down to 0.22 lb). To use a charge cylinder. Refrigerant piping installation (2) Vacuum Vacuum drying should be executed if there is set, all valves of refrigerant. (For the refrigerant additional charge) Too much or too little refrigerant will be opened.) WARNING When installing and moving the air conditioner...
Installation Manual
Page 50
... Outdoor Unit The tables below indicates our recommendation as to appropriate spacing of communication and power lines where these are to 100m(328ft). Electrical Wiring Communication and Power Lines 1) Communication cable • Types : shielding wire •Use wires of size : over 1.25mm2 • Maximum allowable temperature: 60°C • Maximum allowable line length: under 1,000m(3,281ft) 2) Remote control cable • Types : 3-core cable 3) Simple central control...
... Outdoor Unit The tables below indicates our recommendation as to appropriate spacing of communication and power lines where these are to 100m(328ft). Electrical Wiring Communication and Power Lines 1) Communication cable • Types : shielding wire •Use wires of size : over 1.25mm2 • Maximum allowable temperature: 60°C • Maximum allowable line length: under 1,000m(3,281ft) 2) Remote control cable • Types : 3-core cable 3) Simple central control...
Installation Manual
Page 52
... may break the compressor and other parts. Electrical Wiring 5.1 60Hz x Example Connection of Communication Cable s 1 Outdoor Unit - 3Ø, 460V 3 Phase 3 Wires Power supply 60Hz 460V (Main Switch) Power supply switch (Switch fuse : ELCB) Power supply switch (Switch) Power supply 1 Phase 60Hz 208/230V 3 Phase 3 Wires Power line(R, S, T) Communication line (3 line): Wired remote control Single Phase of power supply line(L(1),L(2)) Communication line (2 shield line): Between Indoor Unit and Outdoor Unit Pull Box(Installer Option) WARNING • Indoor Unit ground Lines are...
... may break the compressor and other parts. Electrical Wiring 5.1 60Hz x Example Connection of Communication Cable s 1 Outdoor Unit - 3Ø, 460V 3 Phase 3 Wires Power supply 60Hz 460V (Main Switch) Power supply switch (Switch fuse : ELCB) Power supply switch (Switch) Power supply 1 Phase 60Hz 208/230V 3 Phase 3 Wires Power line(R, S, T) Communication line (3 line): Wired remote control Single Phase of power supply line(L(1),L(2)) Communication line (2 shield line): Between Indoor Unit and Outdoor Unit Pull Box(Installer Option) WARNING • Indoor Unit ground Lines are...
Installation Manual
Page 53
... outdoor unit individually. 3 Phase 3 Wires Power supply 60Hz 460V (Main Switch) Power supply 1 Phase 60Hz 208/230V Power supply switch (Switch fuse : ELCB) Power supply switch (Switch fuse) Pull Box(Installer Option) WARNING • Indoor Unit ground Lines are required for preventing electrical shock accident during current leakage, Communication disorder by noise effect and motor current leakage (without connection to pipe). • Don't install an individual switch or electrical outlet to disconnect each of indoor unit...
... outdoor unit individually. 3 Phase 3 Wires Power supply 60Hz 460V (Main Switch) Power supply 1 Phase 60Hz 208/230V Power supply switch (Switch fuse : ELCB) Power supply switch (Switch fuse) Pull Box(Installer Option) WARNING • Indoor Unit ground Lines are required for preventing electrical shock accident during current leakage, Communication disorder by noise effect and motor current leakage (without connection to pipe). • Don't install an individual switch or electrical outlet to disconnect each of indoor unit...
Installation Manual
Page 55
ENGLISH s 1 Outdoor Unit - 3Ø, 208/230V 3 Phase 3 Wires Power supply 60Hz 208/230V (Main Switch) Power supply switch (Switch fuse : ELCB) Power supply switch (Switch fuse) Power supply 1 Phase 60Hz 208/230V Electrical Wiring 3 Phase 3 Wires Power line(R, S, T) Communication line (3 line): Wired remote control Single Phase of indoor unit separately from the power supply. • Install the main switch that can interrupt all the power sources in reversed phase may break the compressor and other parts. Running the product in an...
ENGLISH s 1 Outdoor Unit - 3Ø, 208/230V 3 Phase 3 Wires Power supply 60Hz 208/230V (Main Switch) Power supply switch (Switch fuse : ELCB) Power supply switch (Switch fuse) Power supply 1 Phase 60Hz 208/230V Electrical Wiring 3 Phase 3 Wires Power line(R, S, T) Communication line (3 line): Wired remote control Single Phase of indoor unit separately from the power supply. • Install the main switch that can interrupt all the power sources in reversed phase may break the compressor and other parts. Running the product in an...
Installation Manual
Page 62
... setup. This Number represents the setting condition.(For example, represents 3Ø 208/230V 20HP heat pump) Master model code ¡ Slave1 model code ¡ total capacity ¡ 2 ¡ 25 ¡ 140 1~255 : Master model code 1~255 : Master model code 1~255 : Master model code 5~48 HP : HP number (Sum of the Master unit The number is OFF. 2. You can check the setting values of the main outdoor unit from the 7 segment LED. Electrical Wiring DIP switch setting...
... setup. This Number represents the setting condition.(For example, represents 3Ø 208/230V 20HP heat pump) Master model code ¡ Slave1 model code ¡ total capacity ¡ 2 ¡ 25 ¡ 140 1~255 : Master model code 1~255 : Master model code 1~255 : Master model code 5~48 HP : HP number (Sum of the Master unit The number is OFF. 2. You can check the setting values of the main outdoor unit from the 7 segment LED. Electrical Wiring DIP switch setting...
Installation Manual
Page 66
.... In replacement of 15 indoor units and auto addressing is pressed on the main PCB Auto addressing has to the indoor unit, operation error occurs. Electrical Wiring Automatic Addressing • The address of indoor units would be performed after completing setting 7-segment LED = 88 YES OK NO Check the connections of communication line Indoor address number is displayed on wired remote control or indoor unit display window. Auto addressing is only possible on remote control ex) Display of...
.... In replacement of 15 indoor units and auto addressing is pressed on the main PCB Auto addressing has to the indoor unit, operation error occurs. Electrical Wiring Automatic Addressing • The address of indoor units would be performed after completing setting 7-segment LED = 88 YES OK NO Check the connections of communication line Indoor address number is displayed on wired remote control or indoor unit display window. Auto addressing is only possible on remote control ex) Display of...
Installation Manual
Page 70
Bad connector contact Check connector quent defrosting No operating sound Coil failure at applying power Check resistance between terminals and chassis R-S-T misconnection Check compressor R-S-T connection Outdoor fan Outdoor EEV High pressure error Motor failure, Check the outdoor fan operation after being at indoor unit display or remote control display, the trouble shooting guide is in the service manual 70 Outdoor Unit outdoor heat exchanger Remove obstacles around turned the outdoor units off for some time. Test Run How to Cope with Test...
Bad connector contact Check connector quent defrosting No operating sound Coil failure at applying power Check resistance between terminals and chassis R-S-T misconnection Check compressor R-S-T connection Outdoor fan Outdoor EEV High pressure error Motor failure, Check the outdoor fan operation after being at indoor unit display or remote control display, the trouble shooting guide is in the service manual 70 Outdoor Unit outdoor heat exchanger Remove obstacles around turned the outdoor units off for some time. Test Run How to Cope with Test...
Installation Manual
Page 73
... power reset Main PCB SW01B Set the Dip S/W. Completed. after turning off when Auto Charging is completed. SW01V ( Press until '508' is out of dip S/W. IDU runs with cooling mode In designated order. Installation Manual 73 Refrigerant Auto Changing : 1,2,7 ON SW02B Main PCB Press the black button on main PCB. After installing the refrigerant charging device as shown below in figure, open the valve. 2. In case air temperature...
... power reset Main PCB SW01B Set the Dip S/W. Completed. after turning off when Auto Charging is completed. SW01V ( Press until '508' is out of dip S/W. IDU runs with cooling mode In designated order. Installation Manual 73 Refrigerant Auto Changing : 1,2,7 ON SW02B Main PCB Press the black button on main PCB. After installing the refrigerant charging device as shown below in figure, open the valve. 2. In case air temperature...
Installation Manual
Page 79
... serial number marked on display window of indoor units and wired remote controller, and 7-segment LED of outdoor unit control board as shown in indoor unit PCB Outlet pipe temperature sensor of indoor unit is open or short 0 7 - Poor fan motor operation Disconnecting the fan motor connector/Failure of outdoor. Communication error: indoor unit ¡ main PCB of indoor fan motor lock 1 1 - When the addressing signal doesn't respond for air condition. • Error mark is displayed on EEPROM of Indoor unit is open or short 0 2 - Inlet pipe temperature sensor of indoor unit Inlet...
... serial number marked on display window of indoor units and wired remote controller, and 7-segment LED of outdoor unit control board as shown in indoor unit PCB Outlet pipe temperature sensor of indoor unit is open or short 0 7 - Poor fan motor operation Disconnecting the fan motor connector/Failure of outdoor. Communication error: indoor unit ¡ main PCB of indoor fan motor lock 1 1 - When the addressing signal doesn't respond for air condition. • Error mark is displayed on EEPROM of Indoor unit is open or short 0 2 - Inlet pipe temperature sensor of indoor unit Inlet...
Installation Manual
Page 87
... passage of air to local regulations or standards. ENGLISH Caution For Refrigerant Leak Caution For Refrigerant Leak The installer and system specialist shall secure safety against leakage according to adjoining room Outdoor unit Outdoor unit Indoor unit Indoor unit Opening Partition In the case of each system shall be adopted. The following steps and take appropriate measure depending on piping length or piping diameter at customer s Calculate minimum room capacity...
... passage of air to local regulations or standards. ENGLISH Caution For Refrigerant Leak Caution For Refrigerant Leak The installer and system specialist shall secure safety against leakage according to adjoining room Outdoor unit Outdoor unit Indoor unit Indoor unit Opening Partition In the case of each system shall be adopted. The following steps and take appropriate measure depending on piping length or piping diameter at customer s Calculate minimum room capacity...