Lennox GCM07N Service Manual Download Page 1

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HVAC EUROPE

SPLIT TYPE, HEAT PUMP AIR CONDITIONERS

Technical & service manual 2005

R410a Wall Mounted

[Models]

GCM07N niet leverbaar

GHM07N niet leverbaar

GCM09N

GHM09N

GCM12N

GHM12N

GCM18N

GHM18N

Summary of Contents for GCM07N

Page 1: ...HVAC EUROPE SPLIT TYPE HEAT PUMP AIR CONDITIONERS Technical service manual 2005 R410a Wall Mounted Models GCM07N niet leverbaar GHM07N niet leverbaar GCM09N GHM09N GCM12N GHM12N GCM18N GHM18N ...

Page 2: ...ents 1 Features 02 2 Specification 03 3 Dimensions 05 4 Refrigeration cycle diagram 09 5 Pressure table 10 6 Capacity table 14 7 Wiring diagram 20 8 Electronic function 25 9 Troubleshooting 33 10 Characteristic of temp sensor 36 ...

Page 3: ...2 1 Features 1 1Compact design 1 2High efficiency and quiet operation 1 3A class energy level ...

Page 4: ...noise level Hi Mi Lo dB A 35 32 30 35 32 30 37 34 31 37 34 31 Dimension W H D mm 710 250 190 710 250 190 710 250 195 710 250 195 Packing W H D mm 800 340 270 800 340 270 800 340 270 800 340 270 Indoor unit Net Gross weight Kg 8 10 8 10 8 10 8 10 Model YDK24 6T YDK24 6T YDK24 6F YDK24 6F Brand Welling Welling Welling Welling Input W 56 56 56 56 Capacitor uF 2 5 2 5 2 5 2 5 Outdoor fan motor Speed r...

Page 5: ...00 Indoor noise level Hi Mi Lo dB A 40 37 34 40 37 34 42 39 37 42 39 37 Dimension W H D mm 790 265 193 790 265 193 920 292 225 1000 353 280 Packing W H D mm 875x285x375 875x285x375 1015 368 295 1015 368 295 Indoor unit Net Gross weight Kg 9 0 11 5 9 11 13 15 13 15 Model YDK24 6F YDK24 6F YDK53 6K YDK53 6K Brand Welling Welling Welling Welling Input W 56 56 125 125 Capacitor uF 2 5 2 5 3 5 3 5 Outd...

Page 6: ...5 3 Dimensions 3 1 Indoor unit GCM 07N GHM07N GCM09N GHM09N 3 2 Indoor unit GCM 12N GHM12N ...

Page 7: ...6 3 2 Indoor unit GCM 18N GHM18N ...

Page 8: ...7 3 4 Outdoor unit GCM 07N GHM07N 3 5 Outdoor unit GCM 09N1 GHM09N GCM12N GHM12N ...

Page 9: ...8 GCM 18N GHM18N 12 5 ...

Page 10: ...9 4 Refrigeration cycle diagram ...

Page 11: ...8 4 9 2 10 1 2GHM07N Cooling mode Outdoor temperature Dry bulb temp Indoor Conditions Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D 15ºC W Pressure kg cm 2 6 2 6 7 7 2 8 0 8 5 9 4 24ºC D 17ºC W Pressure kg cm 2 6 3 6 5 7 5 8 1 8 7 9 5 27ºC D 19ºC W Pressure kg cm 2 6 1 6 8 7 7 8 2 9 0 10 0 32ºC D 23ºC W Pressure kg cm 2 7 0 7 3 7 8 8 4 9 2 10 1 Heating mode OUTDOOR CONDITIONS Indoor Conditions Pre...

Page 12: ...ndoor Conditions Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D 15ºC W Pressure kg cm 2 7 8 8 1 8 4 9 0 9 3 10 0 24ºC D 17ºC W Pressure kg cm 2 7 9 8 2 8 7 9 0 9 5 10 1 27ºC D 19ºC W Pressure kg cm 2 8 0 8 5 9 2 9 9 10 2 10 8 32ºC D 23ºC W Pressure kg cm 2 8 8 9 1 9 2 10 0 10 5 11 2 Heating mode OUTDOOR CONDITIONS Indoor Conditions Pressure 12ºC D 11ºC W 7ºC D 6ºC W 0ºC D 1ºC W 4ºC D 6ºC W 7ºC D 9º...

Page 13: ...ndoor Conditions Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D 15ºC W Pressure kg cm 2 8 4 8 5 8 8 8 9 9 4 9 9 24ºC D 17ºC W Pressure kg cm 2 8 6 8 8 9 2 9 4 10 0 10 4 27ºC D 19ºC W Pressure kg cm 2 8 8 9 2 9 4 9 8 10 3 10 9 32ºC D 23ºC W Pressure kg cm 2 9 2 9 6 9 9 10 4 10 8 11 2 Heating mode OUTDOOR CONDITIONS Indoor Conditions Pressure 12ºC D 11ºC W 7ºC D 6ºC W 0ºC D 1ºC W 4ºC D 6ºC W 7ºC D 9º...

Page 14: ...ndoor Conditions Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D 15ºC W Pressure kg cm 2 8 5 8 6 8 9 9 0 9 4 9 9 24ºC D 17ºC W Pressure kg cm 2 8 7 8 9 9 3 9 5 10 0 10 5 27ºC D 19ºC W Pressure kg cm 2 8 9 9 2 9 5 9 9 10 4 10 9 32ºC D 23ºC W Pressure kg cm 2 9 3 9 7 9 9 10 5 10 9 11 3 Heating mode OUTDOOR CONDITIONS Indoor Conditions Pressure 12ºC D 11ºC W 7ºC D 6ºC W 0ºC D 1ºC W 4ºC D 6ºC W 7ºC D 9º...

Page 15: ...5 2 03 Sensitive capacity kW 1 83 1 67 1 65 1 64 1 57 1 52 32ºC D 23ºC W Input kW 0 58 0 64 0 66 0 73 0 8 0 86 6 2GHM07N SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Total capacity kW 2 04 1 94 1 7 1 61 1 53 1 41 Sensitive capacity kW 1 52 1 41 1 39 1 32 1 19 1 07 21ºC D 15ºC W Input kW 0 53 0 58 0 6 0 67 0 73 0 8 Total capacity kW 2 14 2 05 1 93 1 81 1 73 1 51 Se...

Page 16: ... OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Total capacity kW 2 42 2 41 2 24 2 03 1 87 1 75 Sensitive capacity kW 1 72 1 69 1 65 1 53 1 43 1 36 21ºC D 15ºC W Input kW 0 72 0 75 0 8 0 84 0 89 0 97 Total capacity kW 0 65 2 55 2 45 2 24 2 11 1 98 Sensitive capacity kW 1 83 1 73 1 7 1 63 1 63 1 57 24ºC D 17ºC W Input kW 0 68 0 76 0 81 0 88 0 93 1 02 Total capacity kW 2 89 ...

Page 17: ... 81 1 78 1 66 1 63 27ºC D 19ºC W Input kW 0 65 0 78 0 82 0 92 0 96 1 03 Total capacity kW 3 03 2 98 2 92 2 83 2 69 2 46 Sensitive capacity kW 2 05 1 88 1 96 1 87 1 87 1 85 32ºC D 23ºC W Input kW 0 65 0 8 0 86 0 95 0 99 1 08 WINTER OUTDOOR CONDITIONS Indoor Conditions 12ºC D 11ºC W 7ºC D 6ºC W 4ºC D 3ºC W 0ºC D 1ºC W 4ºC D 6ºC W 7ºC D 8ºC W Capacity kW 3 75 3 38 3 02 1 97 1 59 1 52 15ºC Input kW 0 ...

Page 18: ...acity kW 3 12 2 939 2 891 2 715 2 589 2 503 32ºC D 23ºC W Input kW 0 969 1 088 1 189 1 302 1 349 1 455 6 6GHM12N SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Total capacity kW 3 276 3 187 3 105 2 821 2 746 2 621 Sensitive capacity kW 2 567 2 457 2 413 2 287 2 21 2 087 21ºC D 15ºC W Input kW 0 89 1 01 1 082 1 188 1 243 1 337 Total capacity kW 3 663 3 503 3 315 3 14...

Page 19: ...URE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Total capacity kW 4 914 4 781 4 658 4 232 4 119 3 932 Sensitive capacity kW 3 851 3 686 3 620 3 431 3 315 3 131 21ºC D 15ºC W Input kW 1 335 1 515 1 623 1 782 1 865 2 006 Total capacity kW 5 495 5 255 4 973 4 722 4 614 4 398 Sensitive capacity kW 4 377 4 149 4 088 3 836 3 680 3 501 24ºC D 17ºC W Input kW 1 373 1 550 1 682 1 842 1 917 2 051 To...

Page 20: ...629 27ºC D 19ºC W Input kW 1 416 1 572 1 720 1 880 1 968 2 139 Total capacity kW 6 323 6 150 5 768 5 402 5 252 4 970 Sensitive capacity kW 4 680 4 409 4 337 4 073 3 884 3 755 32ºC D 23ºC W Input kW 1 454 1 632 1 824 1 953 2 024 2 183 WINTER OUTDOOR CONDITIONS Indoor Conditions 12ºC D 11ºC W 7ºC D 6ºC W 4ºC D 3ºC W 0ºC D 1ºC W 4ºC D 6ºC W 7ºC D 8ºC W Capacity kW 6 669 6 396 6 198 5 757 5 003 4 958 ...

Page 21: ...a L POWER_IN PORT LOAD_COMP FUSE1 3 15A 250V L1 L1 FRESH LOAD_VALVE LOAD_FAN OUT LOAD_HEAT L 1 CN11 N 1 CN10 O2_L 1 2 CN13 ZR1 10D471K C23 0 1uF 275VAC 1 2 CN15 TRANS_IN t PTC 82RM Dsa 1 Dsb 2 Q0 3 Q1 4 Q2 5 Q3 6 GND 7 CP 8 MR 9 Q4 10 Q5 11 Q6 12 Q7 13 Vcc 14 IC8 74HC164 5V 5V COM1 COM2 COM3 SEG3 SEG4 R60 10K R59 10K 5V C24 104 SEG3 SEG4 Q8 9012 Q9 9012 Q10 9012 R44 330 R45 330 R46 330 R47 330 R48...

Page 22: ...21 7 2 Wiring diagram 7 2 1 Cooling only 7 2 1 1GCM07N GCM09N GCM12N 1 2 N Y G BLUE S RED C BLACK R BLACK CO M PRESSO R CAPACI TO R FAN M O TO R BLUE RED RED RED BLACK Y G I NDO O R UNIT OUTDO O R UNI T ...

Page 23: ...22 7 2 1 2GCM18N INDOO R UNIT CO M PRESSO R CAPACITOR CO M PRESSO R Y G W HITE S BLUE R C O VERLO AD RELAY RED O UTDOO R UNIT CAPACITO R FAN FAN M O TO R BLUE RED BLACK Y G BLACK BLACK ...

Page 24: ...23 7 2 2 Heating cooling 7 2 2 1 GHM07N GHM09N GHM12N I NDO OR UNI T O UTD OO R UNI T ...

Page 25: ...4 7 2 2 2GHM18N INDO O R UNIT O UTDO O R UNIT RED BLACK BLUE BLACK Y G CO M PRESSO R C S R W HITE BLUE CO M PRESSO R CAPACITO R FAN M O TO R RED BLUE FAN CAPACITO R BLACK BLUE 4 W AY Y G O VERLO AD RELAY ...

Page 26: ... return value THDEFROST High wind defrosting temperature difference TMDEFROST Middle wind defrosting temperature difference TLDEFROST Low wind defrosting temperature difference TE1 Anti cold wind from Fan Off to Breeze temperature TE2 Anti cold wind from Breeze to Setting Fan Speed temperature TE3 Anti cold wind from Setting Fan Speed to Breeze temperature TE4 Anti cold wind from Breeze to Fan Off...

Page 27: ...de IFAN I I5MIN Off Off After 5 Minutes Current up I5MIN I I3SEC Off Off After 3 Seconds I5MIN I I3SEC Off Off After 3 Seconds IFAN I I5MIN Off Off After 5 Minutes On On Off Heating mode IRESTORE I IFAN Low speed On On Cooling mode Current down I IRESTORE On On On If compressor turns off for continuously 4 times due to current protection in 5 minutes from Compressor On the unit stops and LED displ...

Page 28: ...aporator Temp down T TE5 5 Minutes Off Off 8 7 Dehumidifying mode 8 7 1 The 4 way valve is off in dehumidifying mode 8 7 2 Compressor and Indoor Fan actions in dehumidifying mode NO Conditions Indoor Fan Compressor and Outdoor Fan 1 TA TS 2 LOW BREEZE ON 6minutes OFF 4minutes 2 TS TA TS 2 LOW BREEZE ON 5minutes OFF 5minutes 3 TA TS LOW BREEZE ON 4minutes OFF 6minutes Repeat on and off cycle ...

Page 29: ...the defrosting mode or the end of defrost 8 8 3 Action of compressor and outdoor fan motor at heating mode compressor must run for 7 minutes after starting and then judge temperature Meanwhile other protections are still valid Condition Compressor Outdoor fan T Ts 3 Off Off Room temp up T Ts 3 On On T Ts 2 On On Room temp down T Ts 2 Off Off This parameter can be changed from 0 to 3 8 8 4 Indoor F...

Page 30: ...29 T 0 High ...

Page 31: ...EFROST Fan speed is low TLDEFROST Breeze Meet only if it is Breeze Calculate from the end of latest defrost evaporator high temp protection only closes outdoor fan with the compressor still running Add up to 90 minutes 8 9 2 Defrosting time If the temp difference condition is satisfied for less than 40 minutes this can be regarded as severe frosting The defrosting time is 10 minutes If the temp di...

Page 32: ...31 A The defrost time has reached to 7 5 or 10 minutes B The compressor current has reached to IDEFROST or above IDEROST differs in different models ...

Page 33: ... operation mode according to the room temp and set temp or reselect when the set temp varies 8 11 Forced cooling function 8 11 1 Select forced cooling function with the forced cooling button or the switch 8 11 2 The compressor is unconditionally turned on after 30 minutes cooling operation whose fan mode is set as low the A C operates at the DRY mode with a set temp of 24 8 11 3 All protections of...

Page 34: ...f function takes precedence over all The total time is 7 hours after 7 hours the unit stops 8 14 4 Auto The economic running function operates in accordance with selected running mode by auto mode The total time is 7 hours after 7 hours the unit stops 8 15 Auto restart function In case of a sudden power failure this function automatically sets the unit to previous settings before the power failure...

Page 35: ...5 2A 5 5A 5 5A 7 5A 7 5A IRESTORE 4 2A 4 2A 4 5A 4 5A 6 5A 6 5A IDEFROST 3 2A 3 5A 5 0A TE1 28 28 34 TE2 32 32 37 TE3 30 30 33 TE4 26 26 22 TE5 4 4 4 4 3 3 TE6 10 10 10 10 10 10 TE7 60 60 63 TE8 53 53 53 TE9 50 50 50 ANGLCOOL 200 200 200 200 155 155 ANGLHEAT 0 0 10 ANGLOFF 124 124 124 124 124 124 THDEFROST 17 C 17 C 20 C TMDEFROST 18 C 18 C 23 C TLDEFROST 19 C 19 C 26 C ...

Page 36: ...ings when the air conditioner is operational This indicator flashes after power is on and illuminates when the unit is in operation This indicator illuminates when TIMER is set ON OFF OPERATION indicator TIMER indicator TEMPERATURE indicator 5 Signal receptor 9 2 For all heat pump model r Extinguish Flash at 5Hz Failure phenomenon Operation lamp Timer lamp Indoor fan speed has been out of control ...

Page 37: ...conditioner can t be operated Check if AC220V power supply outputs to Indoor PCB Check if AC220V exists at the primary coil of transformer Indoor PCB is defective Check if AC14 5V exists at the secondary coil of transformer Take off the secondary plug of transformer and then check if AC14 5V exists at the secondary coil of transformer The transformer is defective Indoor PCB is defective Resetting ...

Page 38: ...d Timer lamp flashes EEROM error indoor PCB is defective 9 3 3 5 Operation lamp flashes Timer lamp flashes This is alarm signal when the main chip can t detect over zero signal When such failure occurs the main control board must have fault Operation lamp off and Timer lamp flashes Indoor PCB is defective Power supply fault Outdoor unit fault such as the compressor The voltage of power supply is t...

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