Service Manual
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Commercial Air Conditioning SERVICE MANUAL Models AB122ACERA AC122ACERA AD122ALERA AU122AEERA Features High energy efficiency Can be connected with the universal outdoor unit AU122AEERA Infrared control type or wired control type Low ambient cooling kit (optional) and low ambient heating kit (optional) New friendly refrigerant R410a, environment protection Advanced technology, DC inverter control function Weekly timer (standard) Group control function Auto restart function Room card function Manual code: SYJS-020-07REV.0 Edition: 2007-05-15
Commercial Air Conditioning SERVICE MANUAL Models AB122ACERA AC122ACERA AD122ALERA AU122AEERA Features High energy efficiency Can be connected with the universal outdoor unit AU122AEERA Infrared control type or wired control type Low ambient cooling kit (optional) and low ambient heating kit (optional) New friendly refrigerant R410a, environment protection Advanced technology, DC inverter control function Weekly timer (standard) Group control function Auto restart function Room card function Manual code: SYJS-020-07REV.0 Edition: 2007-05-15
Service Manual
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...(R stands for design sequence, DC inverter frequency type) Product type: A stands for heat pump type, refrigerant is R22 B stands for heat pump type, refrigerant is R407C E stands for heat pump type, refrigerant is R410a Q stands for cool only type, refrigerant is R410A Outlook appearance Product series: A stands for 1 to 1 Applicable voltage: 2 stands for 220...8451; 14.5 Outdoor DB ℃ 7 WB ℃ 6 3 Maximum 32 23 43 26 27 --23 18 Minimum 15 14 -5 6 10 --10 --- Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.DESCRIPTION OF PRODUCTS & FEATURES 1.1.
...(R stands for design sequence, DC inverter frequency type) Product type: A stands for heat pump type, refrigerant is R22 B stands for heat pump type, refrigerant is R407C E stands for heat pump type, refrigerant is R410a Q stands for cool only type, refrigerant is R410A Outlook appearance Product series: A stands for 1 to 1 Applicable voltage: 2 stands for 220...8451; 14.5 Outdoor DB ℃ 7 WB ℃ 6 3 Maximum 32 23 43 26 27 --23 18 Minimum 15 14 -5 6 10 --10 --- Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.DESCRIPTION OF PRODUCTS & FEATURES 1.1.
Service Manual
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Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.4 Product features Adopt the much friendlier refrigerant R410a The air conditioner system adopts the greatly friendly refrigerant R410a, which can be fixed with a weekly timer YCS-A001 4 Benefit for you. Long-life& high efficiency air purify filter Low temperature cooling realized, super ...
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.4 Product features Adopt the much friendlier refrigerant R410a The air conditioner system adopts the greatly friendly refrigerant R410a, which can be fixed with a weekly timer YCS-A001 4 Benefit for you. Long-life& high efficiency air purify filter Low temperature cooling realized, super ...
Service Manual
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...oil) Synthetic oil (POE oil) Pressure ratio 1 ■Operation flow Approx. 1.6 Approx. 1.1 prepare work 1. Air purging by refrigerant is approximately 1.6 times higher than R22. maintenance panel installation trial running and adjustment hand over 5 Charge the nitrogen to the set ... 24 hours later,check if the pressure in the refrigerant is different, please do not mix them. Always use dirty pipe 3. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.5 New friendly refrigerant R410A introduction: ■R410A The working pressure of ...
...oil) Synthetic oil (POE oil) Pressure ratio 1 ■Operation flow Approx. 1.6 Approx. 1.1 prepare work 1. Air purging by refrigerant is approximately 1.6 times higher than R22. maintenance panel installation trial running and adjustment hand over 5 Charge the nitrogen to the set ... 24 hours later,check if the pressure in the refrigerant is different, please do not mix them. Always use dirty pipe 3. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.5 New friendly refrigerant R410A introduction: ■R410A The working pressure of ...
Service Manual
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...in R22 work , check the used for R410A 2. Leak pressure detection: Perform seal detection and make sure there is no refrigerant leakage. Vacuum drying: If the vacuum pump has not the reverse flow check mechanism, use the pump together with the ...local regulations when installing the refrigerant piping. ■Tools R410A work requires a number of refrigerant piping to the refrigerant. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA ■Piping material 1. For the pipe wall thickness, see ...
...in R22 work , check the used for R410A 2. Leak pressure detection: Perform seal detection and make sure there is no refrigerant leakage. Vacuum drying: If the vacuum pump has not the reverse flow check mechanism, use the pump together with the ...local regulations when installing the refrigerant piping. ■Tools R410A work requires a number of refrigerant piping to the refrigerant. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA ■Piping material 1. For the pipe wall thickness, see ...
Service Manual
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...;780 Defrosting auto Noise level dB(A) 55 Type of Four way valve SHF-4-10A material of reduce noise XPE crankcase heater power Weight(Net / Shipping) Refrigerant Type / Charge Recharge quantity W kg / kg g g/m 37 39/43 R410A 1300 30 PIPING Pipe Liquid Gas mm mm 6.35 12.7 Connecting Method Between...840r/min±50 0.06 Outdoor unit Air-flow(H-M-L) m³/h 2500/-/- It is a sound pressure noise level. 8 Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Item Model Function Capacity kW Sensible heat ratio Total power input W Max.
...;780 Defrosting auto Noise level dB(A) 55 Type of Four way valve SHF-4-10A material of reduce noise XPE crankcase heater power Weight(Net / Shipping) Refrigerant Type / Charge Recharge quantity W kg / kg g g/m 37 39/43 R410A 1300 30 PIPING Pipe Liquid Gas mm mm 6.35 12.7 Connecting Method Between...840r/min±50 0.06 Outdoor unit Air-flow(H-M-L) m³/h 2500/-/- It is a sound pressure noise level. 8 Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Item Model Function Capacity kW Sensible heat ratio Total power input W Max.
Service Manual
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...cause accidents. Connect earthing wire. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA WARNING! Air-conditioner can't be connected to placed on or stand on outdoor unit. The falling of refrigerant leakage. If conditioner is removed or reinstalled, dealer should not be... use correctly-typed fuse. Don't operate the air-conditioner with inflammable gases because the inflammable gases near to prevent the refrigerant from leaking. Incorrect installation may cause water leak, electrical shock and fire hazard. Otherwise will be responsible for them. ...
...cause accidents. Connect earthing wire. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA WARNING! Air-conditioner can't be connected to placed on or stand on outdoor unit. The falling of refrigerant leakage. If conditioner is removed or reinstalled, dealer should not be... use correctly-typed fuse. Don't operate the air-conditioner with inflammable gases because the inflammable gases near to prevent the refrigerant from leaking. Incorrect installation may cause water leak, electrical shock and fire hazard. Otherwise will be responsible for them. ...
Service Manual
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sensor Tci compressor 2-way stop valve (air side) 33 sensor Te condenser outdoor ambient temp. sensor Tao assistant main capillary capillary one-way valve cooling heating 4-way valve check valve high pressure switch check valve muffle discharge temp. sensor Tai 3-way stop valve (liquid side) indoor coil temp. sensor Td low pressure switch condenser air-inlet temp. sensor Tc evaporator indoor ambient temp. Refrigerant circuit Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA defrost temp. Commercial Air Conditioner 8.
sensor Tci compressor 2-way stop valve (air side) 33 sensor Te condenser outdoor ambient temp. sensor Tao assistant main capillary capillary one-way valve cooling heating 4-way valve check valve high pressure switch check valve muffle discharge temp. sensor Tai 3-way stop valve (liquid side) indoor coil temp. sensor Td low pressure switch condenser air-inlet temp. sensor Tc evaporator indoor ambient temp. Refrigerant circuit Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA defrost temp. Commercial Air Conditioner 8.
Service Manual
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sensor failure 11001 Condenser air inlet temp. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Trouble description Display of LED borad Analyze and diagnose LED 5-4-3-2-1 IPM failure 00001 IPM failure Abnormal of DC moter Communication error between main ... 17 Compressor parameter error 10010 Wrong compressor parameter is too high 34 Alarm and stop if detect Td-Tci=25 last for 1min Lack off refrigerant or discharge side dirty 11101 after compressor has started for 10min in cooling mode, confirm the failure if it appears 3 times 29 in the Eeprom...
sensor failure 11001 Condenser air inlet temp. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Trouble description Display of LED borad Analyze and diagnose LED 5-4-3-2-1 IPM failure 00001 IPM failure Abnormal of DC moter Communication error between main ... 17 Compressor parameter error 10010 Wrong compressor parameter is too high 34 Alarm and stop if detect Td-Tci=25 last for 1min Lack off refrigerant or discharge side dirty 11101 after compressor has started for 10min in cooling mode, confirm the failure if it appears 3 times 29 in the Eeprom...
Service Manual
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..., more than 90degree yes if ventilation beside the module radiator is good no yes if the total load is too big no yes if the refrigerant is normal yes compressor startup procedure is yes abnormal, and vibrates seriously no compressor can not start -up abnormal(10001), Compressor jam(01111), Compressor phase... operate normally yes if compressor winding is normal, and the each phase resistor is in short circuit or open -circuit? Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 11.
..., more than 90degree yes if ventilation beside the module radiator is good no yes if the total load is too big no yes if the refrigerant is normal yes compressor startup procedure is yes abnormal, and vibrates seriously no compressor can not start -up abnormal(10001), Compressor jam(01111), Compressor phase... operate normally yes if compressor winding is normal, and the each phase resistor is in short circuit or open -circuit? Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 11.
Service Manual
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... over 115degree for 3 times continously. outdoor indicator indicate the above failure yes check if refrigerant is too much or too less adjust refrigerant no check if the system piping is blocked yes adjust piping no no Replace outdoor PCB... 5) Compressor discharging temperature protection Alarm condition: Within one hour after compressor is running, compressor discharging temperature is eliminated no check if discharging temp. Commercial Air Conditioner Model: AU122AEERA AB122ACERA...
... over 115degree for 3 times continously. outdoor indicator indicate the above failure yes check if refrigerant is too much or too less adjust refrigerant no check if the system piping is blocked yes adjust piping no no Replace outdoor PCB... 5) Compressor discharging temperature protection Alarm condition: Within one hour after compressor is running, compressor discharging temperature is eliminated no check if discharging temp. Commercial Air Conditioner Model: AU122AEERA AB122ACERA...
Service Manual
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... over 4.5 MPa for 30 seconds continously outdoor failure indicator indicate high pressure failure check if the refrigerant is too much yes or less by the pressure gauge adjust refrigerant no check if the piping is blocked yes adjust piping no check if EEPROM welded points on... up, unit stops abnormally and can not start up normally yes replace the outdoor module 59 Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 6) Outdoor high pressure protection Alarm condition: When compressor running , the unit will affect the normal communication and cause air...
... over 4.5 MPa for 30 seconds continously outdoor failure indicator indicate high pressure failure check if the refrigerant is too much yes or less by the pressure gauge adjust refrigerant no check if the piping is blocked yes adjust piping no check if EEPROM welded points on... up, unit stops abnormally and can not start up normally yes replace the outdoor module 59 Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 6) Outdoor high pressure protection Alarm condition: When compressor running , the unit will affect the normal communication and cause air...
Service Manual
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Commercial Air Conditioner 10) Communication failure between outdoor PCB and module outdoor indicator flashes 22 times Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA no compressor not start up, outdoor alarms, check if there is other failure yes no check if the wiring between outdoor PCB ...failure no replace pressure switch yes low pressure abnormal no check if high pressure is low,too check if piping is blocked yes Lack of refrigerant, charge additional refrigerant and check if piping leaks, if yes, replace piping yes dredge piping (12) 4-way valve reversing failure, systerm lack of...
Commercial Air Conditioner 10) Communication failure between outdoor PCB and module outdoor indicator flashes 22 times Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA no compressor not start up, outdoor alarms, check if there is other failure yes no check if the wiring between outdoor PCB ...failure no replace pressure switch yes low pressure abnormal no check if high pressure is low,too check if piping is blocked yes Lack of refrigerant, charge additional refrigerant and check if piping leaks, if yes, replace piping yes dredge piping (12) 4-way valve reversing failure, systerm lack of...
Operation Manual
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... straight out from AC-Manual.com Manuals Cautions Disposal of the old air conditioner Before disposing an old air conditioner that air conditioner system contains refrigerants, which require specialized waste disposal.
... straight out from AC-Manual.com Manuals Cautions Disposal of the old air conditioner Before disposing an old air conditioner that air conditioner system contains refrigerants, which require specialized waste disposal.
Operation Manual
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...swing louver. connecting cable. switch on PC board is adaptive in the fixed wiring. 7. If the refrigerant 4. The breaker of the air 2. The wiring method should be The refrigerating circuit is damaged, it with spurts out and gets into the H05RN-F 3G 2.5mm2 . The ...: 8. The air breaker and the power switch should 14 installed the conveniently reachable pleace for disconnection must be conditioner that carry refrigerant by replaced by the manufacturer or its two contacts should children be in serious eye injuries. 5. The machine is broken please or...
...swing louver. connecting cable. switch on PC board is adaptive in the fixed wiring. 7. If the refrigerant 4. The breaker of the air 2. The wiring method should be The refrigerating circuit is damaged, it with spurts out and gets into the H05RN-F 3G 2.5mm2 . The ...: 8. The air breaker and the power switch should 14 installed the conveniently reachable pleace for disconnection must be conditioner that carry refrigerant by replaced by the manufacturer or its two contacts should children be in serious eye injuries. 5. The machine is broken please or...
Operation Manual
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...while the condi- Because the highspeed fan is transferred to the new user, this manual should be sure to take measures to prevent the refrigerant from AC-Manual.com Manuals Incorrect installation may cause injuries. Incorrect operations may result in order to continue using the conditioner will feel unpleasant or...find out the handling method. Be sure to handle it. Incorrect operations may result in operation. WARNING! WARNING! Below are listed three kinds of refrigerant leakage. Cautions Safety cautions Carefully read the following important Safety Cautions.
...while the condi- Because the highspeed fan is transferred to the new user, this manual should be sure to take measures to prevent the refrigerant from AC-Manual.com Manuals Incorrect installation may cause injuries. Incorrect operations may result in order to continue using the conditioner will feel unpleasant or...find out the handling method. Be sure to handle it. Incorrect operations may result in operation. WARNING! WARNING! Below are listed three kinds of refrigerant leakage. Cautions Safety cautions Carefully read the following important Safety Cautions.
Operation Manual
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... mode,but it will soon back to the cooling mode. During operation, white fog comes out of plastics Air blown out from smells of the refrigerant , not a malfunction. This is caused by indoor unit. The air conditioner cannot be restarted for three minutes 11 Downloaded from being accumulated on the indoor...
... mode,but it will soon back to the cooling mode. During operation, white fog comes out of plastics Air blown out from smells of the refrigerant , not a malfunction. This is caused by indoor unit. The air conditioner cannot be restarted for three minutes 11 Downloaded from being accumulated on the indoor...
Operation Manual
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... to gas pipe water pipe, telephone line. Incorrect installation or undersized electric wire may occur. Arrange wire correctly when connectin indoor and outdoor power supply. Refrigerant will cause water leakage, electric shock or fire. Be sure that external force will occur when meet heat source as per eocal code, regulations and...
... to gas pipe water pipe, telephone line. Incorrect installation or undersized electric wire may occur. Arrange wire correctly when connectin indoor and outdoor power supply. Refrigerant will cause water leakage, electric shock or fire. Be sure that external force will occur when meet heat source as per eocal code, regulations and...
Operation Manual
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....com Manuals Roof Anchor bolt Long nut Suspending bolt Ceiling Note: All the above mentioned parts shall be used in the field. Connect all pipings (refrigerant, water drainage), wirings (inter unit cable) to prevent vibration.
....com Manuals Roof Anchor bolt Long nut Suspending bolt Ceiling Note: All the above mentioned parts shall be used in the field. Connect all pipings (refrigerant, water drainage), wirings (inter unit cable) to prevent vibration.