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Venting VAC-09CHSA/XA21 PLUS, Service Manual

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Venting VAC-09CHSA/XA21 PLUS Service Manual Download Page 39

 Air Conditioner Service Manual 

 

3

8

 

Resistance at 2

5℃: 

5 

kΩ.

 

 

 

 

TH1: indoor room temperature sensor and outside air temperature sensor

 

TH2: indoor exchange temperature sensor and outside exchange temperature sensor   

Before measuring resistance, disconnect connectors as shown above. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for VAC-09CHSA/XA21 PLUS

Page 1: ... PLUS VAC 12CHSA XA21 PLUS VAC 18CHSA XA21 PLUS VAC 24CHSA XA21 PLUS CONTENTS 1 IMPORTANT NOTICE 2 PRODUCT DIMENSIONS 3 REFRIGERATION CYCLE DIAGRAM 4 OPERATION DETAILS 5 WIRING DIAGRAM 6 EXPLOSION VIEW AND PART LISTS 7 PRECAUTION 8 NAMES OF PARTS 9 INSTALLATION 10 TROUBLE SHOOTING VENTING ...

Page 2: ... for the interpretation of this information nor can it assume any liability in connection with its use The information specifications and parameters are subject to change due to technical modification or improvement without any prior notice The accurate specifications are presented on the nameplate label How to order spare parts To have your order filled promptly and correctly please furnish the f...

Page 3: ...it Outdoor unit A B C D E F G H I J K VAC 09CHSA XA21 PLUS 698 255 190 600 500 230 375 276 256 52 55 VAC 12CHSA XA21 PLUS 777 250 205 700 550 256 439 2 302 277 8 48 55 VAC 18CHSA XA21 PLUS 910 292 205 760 550 256 508 302 277 8 48 55 VAC 24CHSA XA21 PLUS 1010 315 220 900 650 315 623 399 349 65 63 ...

Page 4: ...ry Compressor Accumulator Heat exchange condenser Heat exchange Evaporator 2 way valve Liquid side 3 way valve Gas side Cooling Heating Gas side 3 way valve Liquid side 2 way valve Heat exchange Evaporator Heat exchange condenser Accumulator Compressor 4 way valve Capillary Assembly Check valve ...

Page 5: ... Only then you CAN NOT preset the Heating operation with the remote controller 9 9 1 2 4 3 5 6 10 7 MODE button ECO button FAN SPEED button TEMP UP button TIMER button SLEEP button TEMP DOWN button To select the mode of operation In cooling mode press this button the temperature will increase 2 on the base of setting temperature In heating mode press this button the temperature will decrease 2 on ...

Page 6: ...able to retain and restore the original mode when being turned on or the power supply is resumed if the auto restart function activated power off after power on while if the auto restart function isn t activated the A C enters standby state Heat pump Mode Initial RT Initial ST Cooling RT 26 C 23 C Dry 26 C RT 20 C 7 C Heating RT 20 C 23 C Cooling only Mode Initial RT Initial ST Cooling RT 26 C 23 ...

Page 7: ... ST CRT 1 C the compressor is running b When ST CRT 1 C the compressor stops c When 1 C ST CRT 1 C the compressor keeps its original state 2 Outdoor fan motor and the compressor run simultaneously except for defrosting 3 The control of indoor fan motor a Indoor fan motor can operate by automatic low middle or high airflow speed circularly b Indoor fan motor automatic airflow speed control it works...

Page 8: ... Off Tim be in accord ing during d ing optiona m run into de 3 d c all require ax ᇞIPT 0min the co tion 1 the fir me should b is more than erature is le e set is 8 mi or is operatin on wind tem mpressor ope sting accordi Conditioner Se nomic opera ediately but ing Sleep F dance with o efrosting no l function st frosting onc ed to meet ompressor ru rst running ti be determine Figure 3 n or equal to...

Page 9: ...he machine runs into defrosting and last for 8 min if the accumulative totally less than 30min but accord with one of the condition option 1 3 then the machine runs into defrosting at the option 1 3 and the accumulative total time restarts from 0 Conditions for quitting defrosting 1 The quitting conditions for option 1 option 2 and 4 the machine quits from defrosting if any one below condition met...

Page 10: ...hen no changed anymore 3 The machine will automatically shut up after running 10 hours under sleep mode When Timer ON and Sleep mode are implemented at the same time the Sleep mode can not be functioned 7 T imer function The timer can preset between 10min to 24h when the time set less than 10 hours the displayed time shown by 0 5 hour as the unit when the time set more than or equal to 10 hours th...

Page 11: ...ection the compressor can t start up until it stops 3 min later except for the defrosting process c After the compressor started it s operation state remains the same within 3 min even when ST RT variation 2 Anti fro sting protection of indoor evaporator Cooling mode If IPT 0 C detected in consecutive 3 min compressor and outdoor fan motor to be stopped operation indoor fan motor runs at high spee...

Page 12: ... are several failure codes reported at the same time then failure codes appears by turns every eight seconds correspondingly 6a Sensor s failure protection when the sensor tested temperature out of the range 50 C T 110 C sensor failure is determined Once RT and or IPT sensor failure appears the compressor stops and indoor and outdoor fan motors shut off Remote controller doesn t response to any si...

Page 13: ...Air Conditioner Service Manual 12 5 Wiring diagram MODEL VAC 09CHSA XA21 PLUS VAC 12CHSA XA21 PLUS VAC 18CHSA XA21 PLUS INDOOR UNIT OUTDOOR UNIT ...

Page 14: ...Air Conditioner Service Manual 13 MODEL VAC 24CHSA XA21 PLUS INDOOR UNIT θ θ OUTDOOR UNIT ...

Page 15: ...85 Display PCB 1 14 41106 002092 Front Panel 1 15 22007 000015 Power Supply Cord 1 16 41105 000146 Electrical Box Cover 1 17 42001 000103 Cable Clamp 1 18 11304 100023 Terminal 1 19 10502 100028 Transformer 1 20 31101 000669 Main PCB 1 21 41105 000104 Electrical Box 1 22 10104 100014 Indoor Sensor Assembly 1 23 22001 000265 Indoor Motor 1 24 42003 000060 Indoor Motor Cover 1 25 42009 000011 Draina...

Page 16: ...00177 4 way Valve 1 12 92007 000816 4 way Valve Assembly 1 13 41202 000060 Base 1 14 41205 000056 Right Plate 1 15 92008 000043 Two way Valve 1 16 41204 000012 Valve Supporter 1 17 92008 000115 Three way Valve 1 18 41201 000004 Electrical Box Cover 1 19 42001 000037 Cable Clamp φ6 1 20 42001 000035 Cable Clamp φ7 1 21 11304 100007 Terminal 1 22 10303 100020 Fan Motor Capacitor 1 23 22003 000005 Co...

Page 17: ...Front Panel 1 14 22007 000055 Power Supply Cord 1 15 41201 000068 Electrical Box Cover 1 16 11304 100023 Terminal 1 17 42001 000103 Cable Clamp 1 18 10502 100028 Transformer 1 19 31101 000562 Main PCB 1 20 41105 000104 Electrical Box 1 21 10104 100014 Indoor Sensor Assembly 1 22 22001 000265 Indoor Motor 1 23 42003 000060 Indoor Motor Cover 1 24 42009 000011 Drainage Hose 1 25 22001 000313 Vane Mo...

Page 18: ...00177 4 way Valve 1 12 92007 000817 4 way Valve Assembly 1 13 41202 000046 Base 1 14 41205 000054 Right Plate 1 15 92008 000018 Two way Valve 1 16 41204 000010 Valve Supporter 1 17 92008 000131 Three way Valve 1 18 42011 000070 Electrical Box Cover 1 19 42001 000037 Cable Clamp φ6 1 20 42001 000038 Cable Clamp φ7 1 21 11304 100007 Terminal 1 22 10303 100015 Fan Motor Capacitor 1 23 22003 000004 Co...

Page 19: ...ir Filter 1 12 42003 000001 Display PCB Box 1 13 31102 000085 Display PCB 1 14 41106 002078 Front Panel 1 15 22007 000055 Power Supply Cord 1 16 41105 000146 Electrical Box Cover 1 17 42001 000103 Cable Clamp 1 18 11304 100023 Terminal 1 19 10502 100028 Transformer 1 20 31101 000667 Main PCB 1 21 10104 100014 Indoor Sensor Assembly 1 22 41105 000104 Electrical Box 1 23 22001 000268 Indoor Motor 1 ...

Page 20: ...way Valve 1 12 92007 005092 4 way Valve Assembly 1 13 41202 000055 Base 1 14 41205 000054 Right Plate 1 15 92008 000018 Two way Valve 1 16 41204 000010 Valve Supporter 1 17 92008 000124 Three way Valve 1 18 41201 000005 Electrical Box Cover 1 19 42001 000037 Cable Clamp φ6 1 20 42001 000038 Cable Clamp φ10 1 21 11304 100007 Terminal 1 22 10303 100021 Fan Motor Capacitor 1 23 22003 000004 Compresso...

Page 21: ...2 000085 Display PCB 1 14 41106 002088 Front Panel 1 15 41105 000146 Electrical Box Cover 1 16 11304 100025 Terminal 1 17 42001 000103 Cable Clamp 1 18 10502 100021 Transformer 1 19 31101 000504 Main PCB 1 20 10104 100014 Indoor Sensor Assembly 1 21 41105 000104 Electrical Box 1 22 22001 000271 Indoor Motor 1 23 42003 000045 Indoor Motor Cover 1 24 42009 000011 Drainage Hose 1 25 22001 000321 Vane...

Page 22: ...4 way Valve 1 12 92007 000796 4 way Valve Assembly 1 13 41202 000019 Base 1 14 41205 000057 Right Plate 1 15 92008 000018 Two way Valve 1 16 41204 000013 Valve Supporter 1 17 92008 000116 Three way Valve 1 18 41201 000005 Electrical Box Cover 1 19 42001 000106 Cable Clamp 1 20 11304 100010 Terminal 1 21 10303 100017 Fan Motor Capacitor 1 22 22003 000006 Compressor Capacitor 1 23 42001 000030 Capac...

Page 23: ... accordance with the wiring rules z The air conditioner must be installed by professional or qualified persons Do not install the appliance at a distance of less than 50 cm from inflammable substances alcohol etc Or from pressurized containers e g spray cans z If the appliance is used in areas without the possibility of ventilation precautions must be taken to prevent any leaks of refrigerant gas ...

Page 24: ...res z The user is responsible for having the appliance installed by a qualified technician who must check that it is earthed in accordance with current legislation and insert a thermomagnetic circuit breaker z The batteries in remote controller must be recycled or disposed of properly Disposal of Scrap Batteries Please discard the batteries as sorted municipal waste at the accessible collection po...

Page 25: ...2 Air filter 3 Special filter option 4 Display PCB 5 Vertical vane 6 Horizontal vane 7 Remote controller 8 Names of parts Outdoor unit No Name 8 Air outlet grille 9 Electronic box cover 10 2 way valve 11 3 way valve 1 2 3 4 6 5 7 INDOOR UNIT 8 9 10 11 OUTDOOR UNIT 24 ...

Page 26: ...ion g Bg m A 5m VAC 09CHSA XA21 PLUS 3 0 25 20g m VAC 12CHSA XA21 PLUS 3 5 25 20g m VAC 18CHSA XA21 PLUS 5 0 25 30g m VAC 24CHSA XA21 PLUS 5 0 25 30g m Connecting cables The power cord should be selected according to the following specifications sheet Appliance Amps Wire Size 5 AWG21 0 75 mm2 10 AWG18 1 0 mm2 13 AWG15 1 5 mm2 18 AWG14 1 6 mm2 25 AWG12 2 0 mm2 30 AWG10 2 5 mm2 Outdoor unit Pipe len...

Page 27: ...DOOR UNIT Do not install the outdoor unit near sources of heat steam or flammable gas Do not install the unit in too windy or dusty places Do not install the unit where people often pass Select a place where the air discharge and operating sound level will not disturb the neighbours Avoid installing the unit where it will be exposed to direct sunlight other wise use a protection if necessary that ...

Page 28: ...the hole in the wall for the piping if necessary according to the position of the mounting plate 2 Install a flexible flange through the hole in the wall to keep the latter intact and clean The hole must slope downwards towards the exterior Note Keep the drain pipe down towards the direction of the wall hole otherwise leakage may occur 9 2 3Electrical connections Indoor unit 1 Lift the front panel...

Page 29: ...ipe is bent or pulled too often it will become stiff Do not bend the pipe more than three times at one point z When extending the rolled pipe straighten the pipe by unwinding it gently as shown in the picture 9 2 6 Connections to the indoor unit 1 Remove the indoor unit pipe cap check that there is no debris inside 2 Insert the fare nut and create a flange at the extreme end of the connection pipe...

Page 30: ...ening procedures described for the indoor unit Note If the tightening torque is not sufficient there will probably be some leakage With excessive tightening torque there will also be some leakage as the flange could be damaged 9 2 10 Bl eeding Air and humidity left inside the refrigerant circuit can cause compressor malfunction After having connected the indoor and outdoor units bleed the air and ...

Page 31: ...t does not operate at all Power supply voltage check Connector contact check Power trans output voltage PCB assembly check Power receptable voltage Product input voltage PCB assembly Power input voltage Driving load terminal Display PCB connector AC about 12 3V 30 ...

Page 32: ...tail check Operation mode check PCB ass y check Check Motor driving circuit Relay output Check Motor output connector Motor capacitor Check Motor bearing inserted state Fan Blower fixed state Fan Blower contact state Replace motor or PCB ass y Connector contact check Sensor resistance check Main PCB check and replace Replace the sensor Connect again OK OK No No ...

Page 33: ...Freon short of system and display E4 10 5 System protection E5 High low pressure protection model Start unit Check the pressure of system Check the resistance of pipe sensor Check the main PCB Check leak place and add the Freon OK OK Replace the sensor Replace the main PCB Start unit Check the pressure of system Check hight low pressure switch Replace hight low pressure switch Check PCB Replace PC...

Page 34: ...ature sensor open short check Thermistor and evaporator surface contact check Clearance is needed 5mm Connector check Contact power Connector check Contact power Disconnection short circuit check of connecting wire OLP High pressure switch Low pressure switch check Electric wire connection check for outdoor side Operation mode dehumidifying check Compressor motor detail check PCB assembly check Ch...

Page 35: ...hort circuit mal connection Vane motor check PCB assembly check vane motor driving circuit Replace the vane motor Replace the PCB Heating operation ON by remote controller Connector check If the 4 way valve is ON tick sounds PCB assembly 4 way valve connection check outdoor unit connecting wire check Check the voltage of 4 way valve coil 4 way valve coil resistance check 34 ...

Page 36: ...2 Room temperature sensor IRT and Indoor pipe coil temperature sensor IPT damage short or broken Solution check the resistance of the sensor R 25 5 kΩ if short or broken please replace it 3 The PCB fail Solution Replace the indoor main PCB 10 9 2 Display E6 Reasons 1 The indoor motor connection terminal loose or not plugged in Solution Check the connecter of indoor motor and slot CN3 and CN4 if lo...

Page 37: ...Air Conditioner Service Manual 36 2 The indoor motor damage Solution Check and replace the motor 3 The indoor main PCB damage Solution Replace the indoor main PCB ...

Page 38: ...1 3 981 2 192 76 0 895 0 746 13 26 239 4 186 32 3 836 2 146 77 0 869 0 728 12 24 984 4 152 33 3 697 2 101 78 0 843 0 710 11 23 795 4 117 34 3 563 2 057 79 0 819 0 692 10 22 671 4 082 35 3 435 2 012 80 0 795 0 675 9 21 606 4 045 36 3 313 1 969 81 0 773 0 658 8 20 598 4 008 37 3 195 1 926 82 0 751 0 641 7 19 644 3 969 38 3 082 1 883 83 0 729 0 625 6 18 732 3 930 39 2 974 1 842 84 0 709 0 610 5 17 88...

Page 39: ...Resistance at 25 5 kΩ TH1 indoor room temperature sensor and outside air temperature sensor TH2 indoor exchange temperature sensor and outside exchange temperature sensor Before measuring resistance disconnect connectors as shown above ...

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