Gree GWH18MC-3DNA7E Service Manual Download Page 23 | Manualshive

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Summary of Contents for GWH18MC-3DNA7E

Page 1: ...18MC K3DNA7E GWH18MC K3DNA7E Electric heating belt GWH18MC K3DNA8E GWH18MC K3DNB3E GWH18MC K3DNB7E GWH18MC K3DNC1E GWH18MC K3DNC3E GWH18MC K3DNE4E GWH24MD K3DNA2E GWH24MD K3DNA3E GWH24MD K3DNA4E GWH24MD K3DNA5E GWH24MD K3DNA7E GWH24MD K3DNA7E Electric heating belt GWH24MD K3DNA8E GWH24MD K3DNB3E GWH24MD K3DNC1E Refrigerant R410A ...

Page 2: ...t 19 3 2 Outdoor Unit 20 4 Refrigerant System Diagram 21 5 Schematic Diagram 22 5 1 Electrical Data 22 5 2 Electrical Wiring 22 5 3 Printed Circuit Board 25 6 Function and Control 28 6 1 Remote Control Operations 28 6 2 Description of Each Control Operation 31 7 Installation Manual 38 7 1 Notices for Installation 38 7 2 Installation Dimension Diagram 40 7 3 Install Indoor Unit 41 7 4 Install Outdo...

Page 3: ...65 9 1 Precautions before Performing Inspection or Repair 65 9 2 Conﬁ rmation 66 9 3 Flashing LED of Indoor Outdoor Unit and Primary Judgement 66 9 4 How to Check simply the main part 71 10 Removal Procedure 91 10 1 Removal Procedure of Indoor Unit 91 10 2 Removal Procedure of Outdoor Unit 100 ...

Page 4: ...D K3DNA2E I GWH18MC K3DNA4E I GWH24MD K3DNA4E I GWH18MC K3DNA5E I GWH24MD K3DNA5E I GWH18MC K3DNB3E I GWH24MD K3DNB3E I GWH18MC K3DNC1E I GWH24MD K3DNC1E I GWH18MC K3DNE4E I GWH18MC K3DNA8E I GWH24MD K3DNA8E I GWH18MC K3DNB7E I GWH18MC K3DNC3E I GWH18MC K3DNA3E I GWH24MD K3DNA3E I ...

Page 5: ...Outdoor Unit GWH18MC K3DNA7E O GWH18MC K3DNA7E O Electric heating belt GWH24MD K3DNA7E O GWH24MD K3DNA7E O Electric heating belt YB1FA Remote Controller GWH18MC K3DNA7E I GWH18MC K3DNA7E I GWH24MD K3DNA7E I GWH24MD K3DNA7E I ...

Page 6: ... explosion or injury Make sure the ceiling wall is strong enough to bear the weight of the unit Make sure the noise of the outdoor unit does not disturb neighbors Properly insulate any tubing running inside the room to prevent the water from damaging the wall Make sure the outdoor unit is installed on a stable level surface with no accumulation of snow leaves or trash beside Follow all the install...

Page 7: ...Model of indoor unit GWH18MC K3DNA7E I Fan Type Cross ﬂow Diameter Length DXL mm ĭ98X710 Fan Motor Cooling Speed SH H M L SL r min 1350 1200 1050 900 Fan Motor Heating Speed SH H M L SL r min 1420 1250 1150 1050 Output of Fan Motor W 20 Fan Motor RLA A 0 25 Fan Motor Capacitor ȝF 1 5 Input of Heater W Evaporator Form Aluminum Fin copper Tube Pipe Diameter mm ĭ7 Row ﬁn Gap mm 2 1 4 Coil Length LXDX...

Page 8: ...F 3 5 Air Flow Volume of Outdoor Unit m3 h 2400 Fan Type Axial ﬂow Fan Diameter mm ĭ445 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Permissible Excessive Operating Pressure for the Discharge Side MPa 3 0 Permissible Excessive Operating Pressure for the Suction Side MPa 0 9 Sound Pressure Level H M L dB A 54 Sound Power Level H M L dB A 64 Dimension W...

Page 9: ...cation Area m2 23 34 Indoor Unit Model of indoor unit GWH18MC K3DNA2E I GWH18MC K3DNA3E I GWH18MC K3DNA4E I GWH18MC K3DNA5E I GWH18MC K3DNA8E I GWH18MC K3DNB3E I Fan Type Cross ﬂow Diameter Length DXL mm ĭ98X710 Fan Motor Cooling Speed SH H M L SL r min 1350 1200 1050 900 Fan Motor Heating Speed SH H M L SL r min 1420 1250 1150 1050 Output of Fan Motor W 20 Fan Motor RLA A 0 25 Fan Motor Capacitor...

Page 10: ...low Volume of Outdoor Unit m3 h 2400 Fan Type Axial ﬂow Fan Diameter mm ĭ445 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Permissible Excessive Operating Pressure for the Discharge Side MPa 3 0 Permissible Excessive Operating Pressure for the Suction Side MPa 0 9 Sound Pressure Level H M L dB A 54 Sound Power Level H M L dB A 64 Dimension WXHXD mm 899...

Page 11: ...n Area m2 23 34 Indoor Unit Model of indoor unit GWH18MC K3DNB7E I GWH18MC K3DNC1E I GWH18MC K3DNC3E I GWH18MC K3DNE4E I GWH18MC K3DNA7E I Fan Type Cross ﬂow Diameter Length DXL mm ĭ98X710 Fan Motor Cooling Speed SH H M L SL r min 1350 1200 1050 900 Fan Motor Heating Speed SH H M L SL r min 1420 1250 1150 1050 Output of Fan Motor W 20 Fan Motor RLA A 0 25 Fan Motor Capacitor ȝF 1 5 Input of Heater...

Page 12: ...low Volume of Outdoor Unit m3 h 2400 Fan Type Axial ﬂow Fan Diameter mm ĭ445 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Permissible Excessive Operating Pressure for the Discharge Side MPa 3 0 Permissible Excessive Operating Pressure for the Suction Side MPa 0 9 Sound Pressure Level H M L dB A 54 Sound Power Level H M L dB A 64 Dimension WXHXD mm 899...

Page 13: ...m2 27 42 Indoor Unit Model of indoor unit GWH24MD K3DNA7E I Fan Type Cross ﬂow Diameter Length DXL mm ĭ98X765 Fan Motor Cooling Speed SH H M L SL r min 1250 1100 950 800 Fan Motor Heating Speed SH H ML SL r min 1300 1100 1000 850 Output of Fan Motor W 35 Fan Motor RLA A 0 30 Fan Motor Capacitor ȝF 2 5 Input of Heater W Evaporator Form Aluminum Fin copper Tube Pipe Diameter mm ĭ7 Row ﬁn Gap mm 2 1 ...

Page 14: ... ȝF 3 5 Air Flow Volume of Outdoor Unit m3 h 3200 Fan Type Axial ﬂow Fan Diameter mm ĭ520 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Permissible Excessive Operating Pressure for the Discharge Side MPa 3 0 Permissible Excessive Operating Pressure for the Suction Side MPa 0 9 Sound Pressure Level H M L dB A 54 Sound Power Level H M L dB A 64 Dimension...

Page 15: ...rea m2 27 42 Indoor Unit Model of indoor unit GWH24MD K3DNA2E I GWH24MD K3DNA3E I GWH24MD K3DNA4E I GWH24MD K3DNA5E I Fan Type Cross ﬂow Diameter Length DXL mm ĭ98X765 Fan Motor Cooling Speed SH H M L SL r min 1250 1100 950 800 Fan Motor Heating Speed SH H ML SL r min 1300 1100 1000 850 Output of Fan Motor W 35 Fan Motor RLA A 0 30 Fan Motor Capacitor ȝF 2 5 Input of Heater W Evaporator Form Alumi...

Page 16: ... Flow Volume of Outdoor Unit m3 h 3200 Fan Type Axial ﬂow Fan Diameter mm ĭ520 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Permissible Excessive Operating Pressure for the Discharge Side MPa 3 0 Permissible Excessive Operating Pressure for the Suction Side MPa 0 9 Sound Pressure Level H M L dB A 54 Sound Power Level H M L dB A 64 Dimension WXHXD mm 9...

Page 17: ...rea m2 27 42 Indoor Unit Model of indoor unit GWH24MD K3DNA7E I GWH24MD K3DNA8E I GWH24MD K3DNB3E I GWH24MD K3DNC1E I Fan Type Cross ﬂow Diameter Length DXL mm ĭ98X765 Fan Motor Cooling Speed SH H M L SL r min 1250 1100 950 800 Fan Motor Heating Speed SH H ML SL r min 1300 1100 1000 850 Output of Fan Motor W 35 Fan Motor RLA A 0 30 Fan Motor Capacitor ȝF 2 5 Input of Heater W Evaporator Form Alumi...

Page 18: ... Flow Volume of Outdoor Unit m3 h 3200 Fan Type Axial ﬂow Fan Diameter mm ĭ520 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Permissible Excessive Operating Pressure for the Discharge Side MPa 3 0 Permissible Excessive Operating Pressure for the Suction Side MPa 0 9 Sound Pressure Level H M L dB A 54 Sound Power Level H M L dB A 64 Dimension WXHXD mm 9...

Page 19: ...door DB8 33 C WB6 11 C Indoor air flow Turbo Pipe length 5m 220V 230V 240V 220V 230V 240V 0 10 20 30 40 50 60 70 90 0 10 20 30 40 50 60 70 80 90 100 120 110 80 11 10 9 8 7 6 5 4 3 2 1 0 Compressor speed rps A t n e r r u C 11 10 9 8 7 6 5 4 3 2 1 0 Compressor speed rps A t n e r r u C Conditions Indoor DB26 7 C WB19 4 C Outdoor DB35 C WB23 9 C Indoor air flow Turbo Pipe length 5m Conditions Indoor...

Page 20: ...90 80 70 60 50 40 Outdoor temp C o i t a r y t i c a p a C Conditions Indoor DB21 1o C WB15 6o C Indoor air flow Turbo Pipe length 5m Conditions Indoor DB26 7o C WB19 4o C Indoor air flow Turbo Pipe length 5m Cooling Heating Standard pressure Indoor Outdoor P MPa T1 C T2 C 18K 0 9 to 1 1 12 to 14 70 to 42 High High 62 24K 0 8 to 1 0 10 to 12 70 to 40 High High 78 Outdoor fan mode Compressor Freque...

Page 21: ...les for Both Models Indoor side noise when blowing Outdoor side noise 18K 24K 60 60 60 80 100 50 50 40 40 40 30 30 20 20 20 10 0 0 Indoor Fan Motor Rotating Speed Noice dB A low Middle High Super High Compressor frequency Hz A B d e s i o N 18 24K ...

Page 22: ...Constrction Views 19 3 Construction Views 3 1 Indoor Unit 139 685 183 Φ55 Φ55 6 3 6 3 90 65 72 45 694 194 D 52 Φ55 Φ55 14 82 18K 24K Model W H D W 18K 940 298 200 24K 1007 315 219 Unit mm H ...

Page 23: ...Constrction Views 20 3 2 Outdoor Unit 18K 24K 955 560 897 340 396 3 6 4 7 0 0 899 818 596 378 303 343 550 ...

Page 24: ...stem Diagram Refrigerant pipe diameter Liquid 1 4 6 mm Gas 1 2 12mm 2 Way valve Strainer Strainer 3 Way valve Muffler 4 Way valve Capillary Heat exchanger INDOOR Heat exchanger OUTDOOR r o t a l u m u c c a b u S r o s s e r p m o C Cooling Heating ...

Page 25: ...e BU BLUE BN BROWN YE YELLOW BK BLACK WHITE RD RED YEGN WH YELLOW GREEN VT VIOLET PROTECTIVE EARTH OG ORANGE RT1 PRINTED CIRCUIT BOARD EARTHING PANEL EVAPORATOR YEGN BN BK BU OUTDOOR UNIT M2 ROOM TUBE AP1 RT2 BK BN 3 XT 2 N 1 BU YEGN 0 AP2 PE PE M1 CAP JUMP DISP2 PGF PG TEM SENSOR TUBE ROOM TEM SENSOR MOTOR SWING 0 AC L N COM OUT DISP1 DISPLAY SWING UD ...

Page 26: ... the aircondition stops to prevent the risk of electrical shock INDOOR UNIT PE BU BN N L PE PE N 1 2 3 XT1 BK BN BU YEGN T SENSOR YEGN AC L N PE COMP W COMP V COMP U YE BU RD U V W PE PE COM INNER 0 RT1 0 RT2 RT3 0 4V M1 L INDC1 RD WH PE OFAN OVC COMP WH WH SAT OG INDC2 COMP 4YV X1 CAP RD BN COMP YE BU WH BK TEM SENSOR OUTTUBE OUTROOM TEM SENSOR EXHAUST TEM SENSOR YEGN PE FAN MOTOR TERMINAL BLOCK ...

Page 27: ...ock L N M YEGN 20YEGN BU BK WH BN RD C1 X1 C2 PFCC1 18YE 19YE PFCC2 BU BN PE 7BU 8BN N L PE BU BN BK EKV FA INDOOR UNIT OUTTUBE TEM SENSOR OUTROOM TEM SENSOR EXHAUST TEM SENSOR COMP INDC2 13OG YEGN YEGN SAT 4WH 5WH OVC COMP OFAN PE 12WH 3RD 2BU 1YE INDC1 L M 4V 0 RT3 RT2 0 RT1 0 COM INNER1 PE PE E C W S V R U 17RD 15YE 16BU COMP U COMP V COMP W N 1 2 3 XT AP1 11BK 9BN PE 10BU 14YEGN N AC L WH BK 6...

Page 28: ...oresistor 8 Jumper cap 9 Up down swing terminal 10 PG feedback terminal 11 Terminal of ambient temperature sensor 12 Terminal of tube temperature sensor 13 Connect display board DISP1 DISP2 terminals 14 High frequency transformer T1 15 Rectifier DB1 16 Strainer SF2022A 05220 17 Connect copper terminal of communication line for indoor fan 18 Supply power for control relay K4 of outdoor fan 1 2 3 4 ...

Page 29: ...10 11 12 1 Compressor interface 2 Compressor overloadprotector 3 Temperature sensor 4 Electric expansion valve 5 Outdoor fan 6 4 way valve 6 4 way valve 7 Communication interface with indoor unit 8 Live wire 9 Neutral wire 10 Earthing wire 11 Reactor interface 12 Reactor interface 2 ...

Page 30: ...tor 3 Temperature sensor 4 Electric expansion valve 5 Fan HALL interface 6 Outdoor fan 7 4 way valve 8 Communication interface with indoor unit 9 Live wire 10 Earthing wire 11 Neutral wire 12 Reactor interface 1 13 PFC capacitor interface 1 14 Reactor interface 2 Ɣ TOP VIEW Ɣ BOTTOM VIEW Ɣ Outdoor unit 24k ...

Page 31: ... CLOCK Press it to set clock X FAN is the alternative expression of BLOW for the purpose of understanding X FAN TEMP TURBO SLEEP LIGHT Press it to turn on off the light 17 15 18 19 16 20 21 23 24 22 25 MODE icon If MODE button is pressed current operation mode icon AUTO COOL DRY FAN or HEAT is only for heat pump models will show SLEEP icon is displayed by pressing the SLEEP button Press this butto...

Page 32: ...E Each time you press this button a mode is selected in a sequence that goes from AUTO COOL DRY FAN and HEAT as the following Note Only for models with heating function After energization AUTO mode is defaulted In AUTO mode the set temperature will not be displayed on the LCD and the unit will automatically select the suitable operation mode in accordance with the room temperature to make indoor r...

Page 33: ... set up the temperature displaying status that will display the setting temperature TURBO Press this button to activate deactivate the Turbo function which enables the unit to reach the preset temperature in the shortest time In COOL mode the unit will blow strong cooling air at super high fan speed In HEAT mode the unit will blow strong heating air at super high fan speed SLEEP Press this button ...

Page 34: ...stop running and indoor fan motor turns on blowing heat will act 3 Protection function under heating mode compressor will stop to run due to malfunction happened indoor fan motor will blow surplus heat 4 Defrosting control When receiving the defrosting signal from outdoor unit displayer will display H1 10s later indoor fan motor will stop to run 5 Anti coold wind function 6 Blow heat air function ...

Page 35: ... in Failure State Display Table Note in the case that the unit is switched off with the remote controller or the compressor is switched on again failure display waiting time 200s shall be cleared 4 Frequency limitation and reduction states shall be displayed by means of remote calling 3 Failure display control Indicator failure display shall be kept synchronous with Double 8 failure display that i...

Page 36: ...s at operation state the system will continue to operate if timing start is set when the system is at stop as the preset time is reached the system will start to run in preset mode Timing stop if timing stop is set when the system is at stop state the system will keep standby if timing stop is set when the system is in operation as the preset time is reached the system will stop running Timing cha...

Page 37: ...detected at other times 3 Protecting Treatments of Temperature Sensor 1 When the thermo bulb is detected to be short circuited continuously for 30 seconds It is regarded that the temperature detected by the thermo bulb is over high or unlimited then the whole machine will exert corresponding safety stops according to the over high temperature sensed by the thermo bulb and display corresponding tem...

Page 38: ...5 2 The temperature setting range is 16 30 6 Heating Mode 6 1 Conditions and processes of heating operation Tindoor ambient is the actual detection temperature of indoor environment temp sensor ΔTheating indoor ambient temperature compensation is the indoor ambient temperature compensation during heating operation 6 1 1 If the compressor stops and Tindoor ambient ΔTheating indoor ambient temperatu...

Page 39: ...if 55 Toutdoor pipe running frequency of compressor will be decreased or stop increasing 12 3 In heating mode if 64 Tindoor pipe the unit will stop if Tindoor pipe 54 and compressor has stopped for 3min the unit will resume running 12 4 In heating mode if 54 Tindoor pipe running frequency of compressor will be decreased or stop increasing 12 5 If the unit stops as overload protection for 6 times i...

Page 40: ...e running frequency of compressor will be decreased or stop increasing 18 2 If 95 Tmodule the unit will stop if Tmodule 87 and compressor has stopped for 3min the unit will resume running 18 3 If the unit stops as module overheating protection occurs for 6 times it can not resume running automatically and malfunction will be displayed it can resume by pressing ON OFF During operation if the time e...

Page 41: ...nstruction concerning use of the appliance by a person responsible for their safety Children should be supervised to ensure that they do not play with the appliance 7 1 1 Installation Site Instructions Proper installation site is vital for correct and efficient operation of the unit Avoid the following sites where strong heat sources vapours flammable gas or volatile liquids are emitted high frequ...

Page 42: ...clusive earth device by the professionals 4 The air switch must have the functions of magnetic tripping and heat tripping to prevent short circuit and overload 5 The minimum distance between the unit and combustive surface is 1 5m 6 The appliance shall be installed in accordance with national wiring regulations 7 An all pole disconnection switch with a contact separation of at least 3mm in all pol...

Page 43: ...50cm Above 50cm Above 30cm Above 30cm Above 30cm Above 15cm Above 300 cm 250 cm Space to the obstruction Air outlet side Space to the wall Air inlet side The dimensions of the space necessary for proper installation of the unit include the minimum permissible distances to adjacent parts ƽ Schematic diagram being reference only outdoor unit is with variation please refer to real product for authent...

Page 44: ...onnect and fix power connection cord to the terminal board shown in Fig 2 3 Make the power connection cord pass through the hole at the back of indoor unit 4 Reinstall the cord anchorage and wiring cover 5 Reinstall the front panel 55 Indoor Outdoor Wall pipe Seal pad Unit mm Above 150 from the celling Above 150 from the wall Above 150 from the wall Ф Ф Above 150 from the celling Above 150 from th...

Page 45: ...e related valve 2 Screw in the flare nut by hand and then tighten the nut with spanner and torque wrench by referring to the following NOTE Connect the connection pipe to indoor unit at first and then to outdoor unit Handle pi ping bending with care Do not damage the connection pipe Ensure that the joint nut is tightened firmly otherwise it may cause leakage N m Ф6 Ф 9 52 Ф 12 31 35 15 20 50 55 Ф ...

Page 46: ...ed out The hole diameter 25 must be plugged Whether to plug other holes will be determined by the dealers according to actual conditions Fig 6 Manifold Valve Multimeter 76cmHg Lo Handle Charging hose Manometer Hi handle Vacuum pump Low pressure valve 7 5 1 Check after Installation Items to be checked Possible malfunction Has the unit been fixed firmly The unit may drop shake or emit noise Have you...

Page 47: ...ction and then remove the air filter as shown in Fig a 2 Attach the healthy filter onto the air filter as shown in Fig b 3 Install the air filter properly along the arrow direction in Fig c and then close the panel 7 6 2 Cleaning and Maintenance 7 6 3 Service Life Remove the healthy filter and reinstall it after cleaning according to the installation instruction Don t use brush or hard things to c...

Page 48: ...Exploded Views and Parts list 45 8 Exploded Views and Parts List 8 1 Indoor Unit 18K 16 14 13 15 10 9 7 5 2 30 32 33 27 26 25 24 18 28 8 31 29 3 1 11 17 19 20 21 23 22 40 39 34 35 38 4 6 12 37 36 ...

Page 49: ...1 16 Evaporator Assy 1002937 1002937 1 17 Wall Mounting Frame 1252218 1252218 1 18 Motor Press Plate 26112178 26112178 1 19 Fan Motor 15012116 15012116 1 20 Pipe Clamp 26112164 26112164 1 21 Drainage hose 5230014 5230014 1 22 Step Motor 15012086 15012086 1 23 Crank 10582070 10582070 1 24 Display Board 30565042 30565042 1 25 Guide Louver 10512115 10512115 1 26 Axile Bush 10542008 10542008 1 27 Elec...

Page 50: ...6 Evaporator Assy 01002937 1002937 1 17 Wall Mounting Frame 01252218 1252218 1 18 Motor Press Plate 26112178 26112178 1 19 Fan Motor 15012116 15012116 1 20 Pipe Clamp 26112164 26112164 1 21 Drainage hose 05230014 5230014 1 22 Step Motor 15012086 15012086 1 23 Crank 10582070 10582070 1 24 Display Board 30565093 30565042 1 25 Guide Louver 10512115 10512115 1 26 Axile Bush 10542008 10542008 1 27 Elec...

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