Alen AMS09 9000 BTU AND 14.5 SEER Service Manual

COVERING 16 SEER and 20 SEER FAMILY OF WAB-WYB MODELS Table of Contents 1. Precaution 2.

8 Model R L H Dimension of installation hole WB018GMFI16HLD 120mm(4.72in)100mm(3.94in)45mm (1.77in)Φ65mm (2.56in) WB018GMFI20CLD WB018GMFI20HLD

98 3) Disconnect the connector for fan motor from the electronic control board. 4) Remove the four fixing screws of the fan motor. 5) T

992) Pull out the two black wires connected with the four way valve. 3) Pull out connectors of the compressor top temp. sensor, condens

1004 Four-way valve How to remove the four-way valve. 1) Perform work of item 1,2,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remo

101 18000 BTU, Both 16 and 20 SEER Models. No. Part name Procedures Remarks Panel plate How to remove the panel plate. 1) Stop operation o

1024) Remove the screws of the front panel, including the fixing screws of motor holder and then remove the front panel. 5) Remove the scre

1032 Fan ass’y How to remove the fan ass’y. 1) After remove the panelplate following procedure 1, remove the hex nut fixing the fan and then remov

1043) Release the fan motor connector and four way valve connector. 4) Remove the four fixing screws of the fan motor. 5) Then remove the fa

1052) Release the three temp. sensor connectors. 3) Remove the connector of reactor. 4) Remove the connector of electronic expansion valv

1064 Four-way valve How to remove the four-way valve. 1) Perform work of item1,2,3. 2) Recover refrigerant from the refrigerant circuit. 3

107 18000 BTU, 16 SEER No. Part name Procedures Remarks Panel plate How to remove the panel plate. 1) Stop operation of the air conditione

9 Model W D H WB024GMFI20CLD 1450mm (57.1in) 265mm (10.43in) 340mm (10.39in) WB024GLFI20HLD

1084) Remove the screws of the front panel, including the fixing screws of motor holder and then remove the front panel. 5) Remove the scre

1092 Fan ass’y How to remove the fan ass’y. 1) After remove the panelplate following procedure 1, remove the hex nut fixing the fan and then remov

110 3) Release the fan motor connector and four way valve connector. 4) Remove the four fixing screws of the fan motor. 5) Then remove the f

1112) Release the three temp. sensor connectors. 3) Remove the connector of reactor. 4) Remove the connector of electronic expansion valve

1124 Four-way valve How to remove the four-way valve. 1) Perform work of item1,2,3. 2) Recover refrigerant from the refrigerant circuit. 3

113 24000 BTU, 16 and 20 SEER Models. No. Part name Procedures Remarks Panel plate How to remove the panel plate. 1) Stop operation of the

114 4) Remove the screws of the front panel, including the fixing screws of motor holder and then remove the front panel. 5) Remove the s

1152 Fan ass’y How to remove the fan ass’y. 1) After remove the panelplate following procedure 1, remove the hex nut fixing the fan and then remo

116 3) Disconnect the connector for fan motor from the electronic control board. 4) Remove the four fixing screws of the fan motor. 5)

117 3) Pull out connectors of the compressor top temp. sensor, condenser coil temp. sensor(T3),outdoor ambient temp. sensor(T4) and discharge temp.

103.2 Outdoor UnitMore than 60cm(23.6in)More than 70cm(27.6in)More than 30cm(11.8in)More than 60cm(23.6in)(Service spaceFence orobstaclesMore than 3

1184 Four-way valve How to remove the four-way valve. 1) Perform work of item1,2,3. 2) Recover refrigerant from the refrigerant circuit. 3

114. Refrigerant Cycle Diagram For cooling only models: INDOOR OUTDOORLIQUID SIDEGAS SIDEHEATEXCHANGE(EVAPORATOR)HEATEXCHANGE(CONDENSER)COMPRESSORCA

12For heat pump models: CHECK VALVE(Heating Model only)CAPILIARY TUBELIQUID SIDEGAS SIDEHEAT EXCHANGE(EVAPORATOR)HEAT EXCHANGE(CONDENSER)Compres

135. Wiring Diagram 5.1 Indoor Unit 9000 BTU-12000BTU, 230V, 16 SEER Heat Pump / 12000 BTU, 230V, 20 SEER Heat Pump

149000 BTU-12000BTU, 115V, 20 SEER, Cool Only and Heat Pump

1512000 BTU, 115 VAC, 20 SEER, Heat Pump

1612000 BTU, 230V, 20 SEER Cool Only and Heat Pump

1718000 BTU, 20 SEER, Heat Pump

CONTENTS 1. Precaution ...

1818000 BTU / 24000 BTU, 16 SEER Heat Pump

1924000 BTU, 20 SEER, Cool Only and Heat Pump

205.2 Outdoor Unit 9000 BTU and 12000 BTU, 230 V, 16 SEER, Heat Pump

219000 BTU, 115V, 20 SEER Cool Only / 12000 BTU, 115V, 20 SEER Heat Pump

2212000 BTU, 230V, 20 SEER, Cool Only and Heat Pump

239000 BTU, 115V, 20 SEER Heat Pump / 12000 TU, 115V, 20 SEER Cool Only and Heat Pump

2418000 BTU, 16 AND 20 SEER, Heat Pump

2518000 BTU and 24000 BTU, 16 SEER, Heat Pump

2624000 BTU, 20 SEER, Cool Only and Heat Pump

27For 9000 BTU and 12000 BTU, 115 V, 20 SEER, Cool Only and Heat Pump

11. Precaution 1.1 Safety Precaution  To prevent injury to the user or other people and property damage, the following instructions must be observ

28For 9000 BTU and 12000 BTU, 230V, 16 SEER, Heat Pump,

29For 12000 BTU, 230 V, 20 SEER, Cool Only

30For 12000 BTU and 18000 BTU, 230 V, 20 SEER, Heat Pump

31For 12000 BTU, 230 V, 20 SEER, Heat Pump

32 For 18000 BTU, 16 SEER, Heat Pump

33For 18000 BTU and 24000 BTU, 16 SEER, Heat Pump

34For 24000 BTU, 20 SEER, Heat Pump

356 Installation Details 6.1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torqueФ6.35mm 1/4in 1500N.

36Models Standard length Max. Elevation Max. Length A Additional refrigerant WB009AMFI20CLD+AN009AMFI20RPD 7.5m (24.6ft) 10m (32.8ft) 25m (82.0ft)

376.4 Installation for the first time Air and moisture in the refrigerant system will cause undesirable effects as below: ● Pressure in the syste

2There is risk of electric shock or fire.  Stop operation and disconnect the power during storm or hurricane. If possible, further secure the prod

38After purging the air, use a torque wrench to tighten the flare nut on the 2-way valve. 4). Check for gas leakage. Check the flare connections for

39manifold hose with the push pin to the 3-way valve's gas service port. 3). Air purge of the charge hose. Open the Low side valve of the manif

402. Refrigerant charging Procedure: 1). Connect the charge hose to the charging cylinder, open the 2-way valve and the 3-way valve Connect the cha

417. Operation Characteristics Temperature Mode Cooling operation Heating operation Drying operation Room temperature ≥17℃ (62℉)

428. Electronic Function 8.1 Abbreviation T1: Indoor room temperature T2: Coil temperature of evaporator T3: Coil temperature of condenser

438.3 Main Protection 8.3.1 Three minutes delay at restart for compressor 1 minute delay for the 1st time start-up and 3 minute delay for subsequent

448.4 Operation Modes and Functions 8.4.1 Fan mode 8.4.1 Fan only mode (1) Outdoor fan and compressor stop. (2) Temperature setting function is disa

45Note: When T1-Ts stays in the same temp. zone for 3 minutes, the compressor will run as the below rules: A~E: Increase the frequency to the higher

46For other models, when the compressor is running, the indoor fan will run at setting fan speed. When the setting temp. is reached, the indoor fan

47+5.0+4.5+3.5+3.0+2.5+2.0+1.5+1.0HGHFEDCBA+0.5While the zones of A,B,C... are corresponding to different compressor running frequency. ΔT=0℃ as de

3 Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal injury.  Replace the all batteries in the r

48For 9000 BTU, 12000 BTU, 20 SEER Cool Only and Heat Pump models, the anti-cold (Warm Start) function is as below for : 44383734T233SettingLowBre

49than 5℃ or not. Condition of ending defrosting: If any one of the following items is satisfied, the defrosting will end and the machine will turn

50and cooling, the compressor will keep stopping for 15 minutes and then choose mode according to T1-Ts. If the setting temperature is modified, the

51temperature stops rising and indoor fan is fixed as low speed. (Warm-Start function has the priority) 8.4.8.3 Timer setting is available 8.4.8.4 W

52the air conditioner can be as lower as 8℃, which keeps the room temperature steady at 8℃ and prevents household things freezing when t

539.1 Indoor Unit Error Display For All Models, (EXCEPT 18000 BTU, 16 SEER, Heat Pump). Display LED STATUS E0 Indoor unit EEPROM parameter error E1

54For 18000 BRY, 16 SEER Heat Pump Display LED STATUS E0 Indoor unit EEPROM parameter error E1 Indoor / outdoor units communication error E2 Zero

559.2 Outdoor unit error display For 9000 BTU and 12000 BTU, 115V, 20 SEER, Cooling Only and Heat Pump

56For 9000 BTU and, 12000 BTU, 230V, 16 SEER, Heat Pump. After power on, LED1(Blue color) will be slow flash(0.2Hz) when the unit is in standby and

57For 12000 BTU, 230V, 20 SEER, Cool Only.

42. Part Names And Functions 2.1 Model Names of Indoor/Outdoor units Series Capacity Indoor units Outdoor units Inverter 9k WB009AMFI20CLD AN009

58For 12000 BTU and 18000 BTU, 230V, 20 SEER, Heat Pump. After power on, LED3(Blue color) will be slow flash(0.2Hz) when the unit is in standby and

59For 12000 BTU, 230 V, 20 SEER, Heat Pump After power on, LED1(Blue color) will be slow flash(0.2Hz) when the unit is in standby and quick flash

60 For 18000 BTU, 16 SEER, Heat Pump After power on, LED3(Blue color) will be slow flash(0.2Hz) when the unit is in standby and quick flash (2.5Hz)

61For 18000 BTU and 24000 BTU, 20 SEER, Heat Pump After power on, LED1(Blue color) will be slow flash(0.2Hz) when the unit is in standby and quick f

62For 24000 BTU, 16 SEER, Heat Pump

639.3 Diagnosis and Solution 9.3.1 EEPROM parameter error diagnosis and solution(E0/F4) Error Code E0/F4 Malfunction decision conditions Indoor or ou

649.3.2 Indoor / outdoor unit’s communication diagnosis and solution(E1) Error Code E1 Malfunction decision conditions Indoor unit does not receive

65Remark: Use a multimeter to test the DC voltage between L2 (or N for 115V) port and S port of outdoor unit. The red pin of multimeter connects with

669.3.3 Zero crossing detection error diagnosis and solution(E2) Error Code E2 Malfunction decision conditions When PCB does not receive zero crossi

679.3.4 Fan speed has been out of control diagnosis and solution (E3/E7/F5) Error Code E3 Malfunction decision conditions When indoor fan speed keep

52.2 Part names of Indoor/Outdoor units

68Index 1: 1.Indoor or Outdoor DC Fan Motor (control chip is in fan motor) Measure the resistance value of each winding by using the tester. If an

699.3.5 Open circuit or short circuit of temperature sensor diagnosis and solution (E5) Error Code E5 Malfunction decision conditions If the sampli

709.3.6 IPM malfunction or IGBT over-strong current protection diagnosis and solution (P0) Error Code P0 Malfunction decision conditions When the v

71 P-U P-V

72P-W P-N

739.3.7 High temperature protection of compressor top diagnosis and solution (P2) Error Code P2 Malfunction decision conditions If the sampling volt

749.3.8 Inverter compressor drive error diagnosis and solution (P4) Error Code P4 Malfunction decision conditions An abnormal inverter compressor dr

75Main parts check 1. Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Temperat

76Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (℃--K) ℃ ℉ K Ohm ℃ ℉ K Ohm ℃ ℉ K Ohm ℃ ℉ K Ohm -20 -4 115.266 20 68

77Appendix 2 Temperature Sensor Resistance Value Table for T5 (℃--K) ℃ ℉ K Ohm ℃ ℉ K Ohm ℃ ℉ K Ohm ℃ ℉ K Ohm -20 -4 542.7 20 68 68.66

63. Dimension 3.1 Indoor Unit WDH Model W D H WB009GMFI16HLD 790mm (31.1in) 198mm (7.8in) 265mm (10.43in) WB009AMFI20CLD 920mm (36.22in) 223mm (

78Appendix 3: ℃ 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 ℉ 50 50 52 54 56 58 60 62 64 66 68 70 72 74 7

792.Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value DA108X1C-20FZ3 DA150S1C-20

803. IPM continuity check Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digit

815: Pressure On Service Port Cooling chart: ℉(℃) IDT ODT 75 （23.89） 85 （29.44） 95 （35） 105 （40.56） 115 （46.11） BAR 70/59 8.2 7.8 8.1

82Heating Chart: ℉(℃) IDT ODT 57/53 (13.89/11.67) 47/43 (8.33/6.11) 37/33 (2.78/0.56) 27/23 (-2.78/-5) 17/13 (-8.33/-10.56) BAR 55 30.3

8310. Exploded Views: (Available as a separate Document)

8411. Disassembly Instructions Note: This part is for reference, the photos may have slight difference with your machine. 11.1 Indoor unit No. Parts

852 Electrical parts How to remove the electrical parts. 1) After remove the front panel from procedure 1, pull out the room temp. sensor and evapo

863 Evaporator How to remove the evaporator. 1) After remove the front panel ass’y and electrical parts following procedure 1 and procedure 2, r

874 Fan and motor How to remove the fan and motor. 1) After remove the evaporator ass’y following procedure 1, procedure 2 and procedure 3, remove

7LRH Model R L H Dimension of installation hole WB024GMFI20CLD 150mm(5.91in)100mm(3.94in)45mm (1.77in)Φ65mm (2.56in) WB024GLFI20HLD Model R L

8811.2 Outdoor unit  12000 BTU, 230 V, 20 SEER and 9000 / 12000 BTU, 115V, 20 SEER Heat Pumps. No. Part name Procedures Remarks

891 Panel plate How to remove the panel plate. 1) Stop operation of the air conditioner and turn “OFF” the power breaker. 2) Refer to the

90the fixing screws of motor holder and then remove the front panel. 5) Remove the screws of the right side plate and remove the right side pl

912 Fan ass’y How to remove the fan ass’y. 1) After remove the panel plate following procedure 1, remove the hex nut fixing the fan and then remo

92 3) Disconnect the connector for fan motor from the electronic control board. 4) Remove the four fixing screws of the fan motor. 5)

932) Pull out the two black wires connected with the four way valve. 3) Pull out connectors of the compressor top temp. sensor, condens

944 Four-way valve How to remove the four-way valve. 1) Perform work of item 1,2,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remov

95 9000 BTU and 12000 BTU, 230V, 16 SEER No. Part name Procedures Remarks 1 Panel plate How to remove the panel plate. 1) Stop operation of t

96 4) Remove the screws of the front panel, including the fixing screws of motor holder and then remove the front panel. 5) Remove the screw

972 Fan ass’y How to remove the fan ass’y. 1) After remove the panelplate following procedure 1, remove the hex nut fixing the fan and then remov