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Service Manual MODEL: GWC18AC-D3DNA1B GWC24AC-D3DNA1B GWH18AC-D3DNA1B GWH24AC-D3DNA1B GWH18AC-D3DNA2B GWH24AC-D3DNA2B (Refrigerant R410A) GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI Table of Contents Summary and features..................................................................................1 Part 1 Safety Precautions..........................................................................................2 Part 2 Specifications.....................................................................................................3 2.1 Unit Specifications..................................................................................................3 2.2 Operation Characteristic Curve............................................................................13 2.3 Capacity Variation Ratio According to Temperature............................................14 2.4 Operation Data.....................................................................................................14 2.5 Noise criteria curve tables for both models..........................................................15 Part 3 Construction Views......................................................................................16 3.1 Indoor Unit ...........................................................................................................16 3.2 Outdoor Unit ........................................................................................................17 Part 4 Refrigerant System Diagram...................................................................18 Part 5 Schematic Diagram......................................................................................19 5.1 Electrical Data......................................................................................................19 5.2 Electrical Wiring....................................................................................................19 5.3 Printed Circuit Board.............................................................................................21 Part 6 Function and Control...................................................................................23 6.1 Remote Control Operations..................................................................................23 6.2 Changing Batteries and Notices ..........................................................................25 6.3 Description of Each Control Operation.................................................................26 6.4 Functions of Outdoor Unit....................................................................................30 Part 7 Installation Manual........................................................................................33 7.1 Important Notices.................................................................................................35 7.2 Install Indoor Unit.................................................................................................35 7.3 Install Outdoor Unit ..............................................................................................37 Part 8 Exploded Views and Parts List..............................................................39 8.1 Indoor unit.............................................................................................................39 8.2 Outdoor unit..........................................................................................................47 Part 9 Troubleshooting...............................................................................................55 Part10 Removal Procedure.......................................................................................83 10.1 Removal Procedure of Indoor Unit.....................................................................83 10.2 Removal Procedure of Outdoor Unit...................................................................86 Summary and features Summary and features Indoor Unit GWC18AC-D3DNA1B/I GWC24AC-D3DNA1B/I GWH18AC-D3DNA1B/I GWH24AC-D3DNA1B/I GWH18AC-D3DNA2B/I GWH24AC-D3DNA2B/I Outdoor Unit GWC18AC-D3DNA1B/O GWH18AC-D3DNA1B/O GWC24AC-D3DNA1B/O GWH24AC-D3DNA1B/O Remote control window YT1FF FAN MODE I FEEL CLOCK TIMER ON X-FAN TEMP TIMER OFF TURBO SLEEP LIGHT 1 Safety Precautions 1.Safety Precautions Installing, starting up, and servicing air conditioner can be Make sure the outdoor unit is installed on a stable, level hazardous due to system pressure, electrical components, and surface with no accumulation of snow, leaves, or trash equipment location, etc. beside. Only trained, qualified installers and service personnel are Make sure the ceiling/wall is strong enough to bear the allowed to install, start-up, and service this equipment. weight of the unit. Untrained personnel can perform basic maintenance functions Make sure the noise of the outdoor unit does not disturb such as cleaning coils. All other operations should be neighbors. performed by trained service personnel. When handling the equipment, observe precautions in the manual and on tags, stickers, and labels attached to the equipment. Follow all safety codes. Wear safety glasses and work gloves. Keep quenching cloth and fire extinguisher nearby when brazing. Read the instructions thoroughly and follow all warnings or cautions in literature and attached to the unit. Consult local building codes and current editions of national as well as local electrical codes. Caution Avoid contact between refrigerant and fire as it generates poisonous gas. Apply specified refrigerant only. Never have it mixed with any other refrigerant. Never have air remain in the refrigerant line as it may lead to rupture and other hazards. Make sure no refrigerant gas is leaking out when installation is completed. Should there be refrigerant leakage, the density of Recognize the following safety information: Warning Follow all the installation instructions to minimize the risk of damage from earthquakes, typhoons or strong winds. Incorrect handling could result in personal injury or death. Incorrect handling may result in minor injury, or damage to product or property. Warning refrigerant in the air shall in no way exceed its limited value, or it may lead to explosion. Keep your fingers and clothing away from any moving parts. Clear the site after installation. Make sure no foreign objects are left in the unit. Always ensure effective grounding for the unit. Caution All electric work must be performed by a licensed technician Never install the unit in a place where a combustible gas according to local regulations and the instructions given in this might leak, or it may lead to fire or explosion. manual. Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label. Provide an electric leak breaker when it is installed in a watery place. Never wash the unit with water. Handle unit transportation with care. The unit should not be Never supply power to the unit unless all wiring and tubing carried by only one person if it is more than 20kg. are completed, reconnected and checked. Never touch the heat exchanger fins with bare hands. This system adopts highly dangerous electrical voltage. Never touch the compressor or refrigerant piping without Incorrect connection or inadequate grounding can cause wearing glove. personal injury or death. Stick to the wiring diagram and all Do not have the unit operate without air filter. the instructions when wiring. Should any emergency occur, stop the unit and disconnect Have the unit adequately grounded in accordance with the power immediately. local electrical codes. Have all wiring connected tightly. Loose connection may lead to overheating and a possible fire hazard. All installation or repair work shall be performed by your dealer or a specialized subcontractor as there is the risk of fire, electric shock, explosion or injury. 2 Make a proper provision against noise when the unit is installed at a telecommunication center or hospital. Properly insulate any tubing running inside the room to prevent the water from damaging the wall. Specifications 2.Specifications 2.1 Unit Specifications Model Product Code Function Rated Voltage(V) Frequency(Hz) Total Capacity (W) Standard (Low~High) Total Capacity (Btu/h) Standard (Low~High) Power Input (W) Standard (Low~High) Rated Input (W) Rated Current (A) 3 Air Flow Volume (m /h) (SH/H/M/L) Dehumidifying Volume (l/h) EER / C.O.P (W/W) Energy Class Model of Indoor Unit Fan Motor Speed (r/min) (SH/H/M/L) Output of Fan Motor (W) GWC24AC-D3DNA1B CB11500420 COOLING CB11500440 COOLING 208-230 208-230 60 60 5275(1820~6450) 6450(2300~7680) 18000(6200~22000) 22000(7800~26200) 1500(180~2650) 1832(220~2660) 2650 2660 12 12.2 830/750/650/550 1030/800/700/600 2 2.5 3.51 3.51 SEER=20 SEER=19 GWC18AC-D3DNA1B/I GWC24AC-D3DNA1B/I 1500/1150/1050/950 1380/1000/900/750 20 35 Input Power of Heater (W) / / Fan Motor Capacitor (μF) 1.5 2.5 0.25 0.45 Cross flow fan Cross flow fan Fan Motor RLA(A) Fan Type Diameter-Length (mm) Evaporator Indoor unit GWC18AC-D3DNA1B Pipe Diameter (mm) Row-Fin Gap(mm) Coil length (l) X height (H) X coil width (L) Swing Motor Model Output of Swing Motor (W) Φ98X733 Φ98X828 Aluminum fin-copper tube Aluminum fin-copper tube Φ7 Φ7 2-1.4 2-1.5 740X304.8X25.4 836X400X25.4 MP28VB MP35XX 2.5 2.5 Fuse (A) PCB 3.15A PCB 3.15A Sound Pressure Level dB (A) (SH/H/M/L) 46/43/40/35 51/43/40/35 Sound Power Level dB (A) (SH/H/M/L) Dimension (W/H/D) ( mm) Dimension of Package (L/W/H)( mm) Net Weight /Gross Weight (kg) 56/53/50/45 61/53/50/45 960X300X195 1090X330X208 1035X390X280 1160X410X310 13/18 16/21 3 Specifications Model of Outdoor Unit GWC18AC-D3DNA1B/O Product Code Com pres sor Manufacturer/tradem ark Com pres sor Model Com pres sor Type L.R.A. (A) Com pres sor RLA(A) Com pres sor Power Input(W) Overload Protector GWC24AC-D3DNA1B/O CB115W0420 CB115W0440 China Res ources (Shenyang) Sanyo CO.,LTD C-6RZ146H1A China Res ources (Shenyang) Sanyo CO.,LTD C-6RZ146H1A Twin rotary com pres sor Twin rotary com pres sor 41 41 8.4 8.4 1640 1640 1NT11L-3979 1NT11L-3979 Throttling Method Electric expand valve Electric expand valve Starting Method Transducer starting Transducer starting 5 ≤T≤46 5 ≤T≤46 Aluminum fin-copper tube Aluminum fin-copper tube 7 7 Working Tem p Range (℃) Condenser Pipe Diam eter (mm ) Rows -Fin Gap(m m) Coil length (l)X height (H) X coil width (L) Fan Motor Speed (rpm) (H/M/L) Outdoor Output of Fan Motor (W) unit Fan Motor RLA(A) Fan Motor Capacitor(μF) 3 Air Flow Volum e of Outdoor Unit(m /h ) Fan Type Fan Diam eter (mm ) Defros ting Method Climate Type Is olation Moisture Protection Permis sible Exces s ive Operating Pres s ure for the Dis charge Side(MPa) Permis sible Exces s ive Operating Pres s ure for the Suction Side(MPa) Sound Pres sure Level dB (A) 2-1.4 2-1.4 837X660X38.1 967X748X38.1 690/500 780 60 90 0.4 0.6 / / 3200 4200 Axial fan Axial fan Φ520 Φ552 Auto defros t Auto defros t T1 T1 I I IP24 IP24 3.8 3.8 1.2 1.2 54 56 Sound Power Level dB (A) 64 66 Dim ens ion (W/H/D) ( m m ) 890X700X340 920X790X370 Dim ens ion of Package (L/W/H)( m m ) 1030X460X735 1065X485X840 50/55 54/60 R410A/1.45 R410A/1.80 8 8 Net Weight /Gross Weight (kg) Refrigerant and Charge (kg) Length (m ) Gas additional charge(g/m) Connecti Outer Diameter on Pipe Max Distance Liquid Pipe (mm ) Gas Pipe (m m) 20 30 Φ6 Φ6 Φ12 Φ16 Height (m ) 15 15 Length (m ) 30 30 The above data is subject to change without notice. Please refer to the nameplate of the unit. 4 Specifications Model GWH18AC-D3DNA1B Product Code CB11500430 COOLING Function HEATING 208-230 Rated Voltage(V) 60 Frequency(Hz) Total Capacity (W) Standard (Low~High) Total Capacity (Btu/h) Standard (Low~High) Power Input (W) Standard (Low~High) Rated Input (W) Rated Current (A) 5275(1820~6450) 7325(1200~7325) 18000(6200~22000) 25000(4100~25000) 1500(180~2650) 2700(240~2700) 2650 2700 12 Air Flow Volum e (m 3/h) (SH/H/M/L) Dehum idifying Volum e (l/h) EER / C.O.P (W/W) Energy Clas s Model of Indoor Unit Fan Motor Speed (r/m in) (SH/H/M/L) Output of Fan Motor (W) 2 3.51 2.71 HSPF=10.2(Region Ⅳ ) SEER=20 HSPF=8.8(Region Ⅴ ) GWH18AC-D3DNA1B/I 1500/1150/1050/950 1500/1200/1100/1000 20 Input Power of Heater (W) / Fan Motor Capacitor (μF) Fan Motor RLA(A) 1.5 Fan Type Diam eter-Length (m m ) Evaporator Indoor unit 12.4 830/750/650/550 Pipe Diam eter (m m ) Row-Fin Gap(m m ) Coil length (l) X height (H) X coil width (L) Swing Motor Model Output of Swing Motor (W) 0.25 Cros s flow fan Φ98X733 Alum inum fin-copper tube Φ7 2-1.4 740X304.8X25.4 MP28VB 2.5 Fuse (A) PCB 3.15A Sound Pres s ure Level dB (A) (SH/H/M/L) 46/43/40/35 Sound Power Level dB (A) (SH/H/M/L) Dim ens ion (W/H/D) ( m m ) Dim ens ion of Package (L/W/H)( m m ) Net Weight /Gros s Weight (kg) 56/53/50/45 960X300X195 1035X390X280 13/18 5 Specifications Model of Outdoor Unit GWH18AC-D3DNA1B/O CB115W0430 Product Code Com pres sor Manufacturer/tradem ark China Res ources (Shenyang) Sanyo CO.,LTD C-6RZ146H1A Com pres sor Model Twin rotary com pres sor Com pres sor Type 41 L.R.A. (A) 8.4 Com pres sor RLA(A) Com pres sor Power Input(W) 1640 Overload Protector 1NT11L-3979 Throttling Method Electric expand valve Transducer starting Starting Method Working Tem p Range (℃) Condenser 5 ≤T≤46 -15 ≤T≤30 Aluminum fin-copper tube Pipe Diam eter (mm ) 7 Rows -Fin Gap(m m) 2-1.4 Coil length (l)X height (H) X coil width (L) Fan Motor Speed (rpm) (H/M/L) Outdoor Output of Fan Motor (W) Fan Motor RLA(A) unit Fan Motor Capacitor(μF) Air Flow Volum e of Outdoor Unit(m 3/h ) Fan Type Fan Diam eter (mm ) Defros ting Method 837X660X38.1 690/500 60W 0.4 / 3200 Axial fan Φ520 Auto defros t Climate Type T1 Is olation I Moisture Protection Permis sible Exces s ive Operating Pres s ure for the Dis charge Side(MPa) Permis sible Exces s ive Operating Pres s ure for the Suction Side(MPa) Sound Pres sure Level dB (A) IP24 3.8 1.2 54 Sound Power Level dB (A) 64 Dim ens ion (W/H/D) ( m m ) 890X700X340 Dim ens ion of Package (L/W/H)( m m ) Net Weight /Gross Weight (kg) Refrigerant and Charge (kg) Length (m ) Max Distance 50/55 R410A/1.45 8 Gas additional charge(g/m) Connecti Outer Diameter on Pipe 1030X460X735 20 Liquid Pipe (mm ) Φ6 Gas Pipe (m m) Φ12 Height (m ) 15 Length (m ) 30 The above data is subject to change without notice. Please refer to the nameplate of the unit. 6 Specifications Model GWH18AC-D3DNA2B Product Code CB11500470 COOLING Function HEATING 208-230 Rated Voltage(V) 60 Frequency(Hz) Total Capacity (W) Standard (Low~High) Total Capacity (Btu/h) Standard (Low~High) Power Input (W) Standard (Low~High) Rated Input (W) Rated Current (A) 5275(1820~6450) 7325(1200~7325) 18000(6200~22000) 25000(4100~25000) 1500(180~2650) 2700(240~2700) 2650 2700 12 Air Flow Volum e (m 3/h) (SH/H/M/L) Dehum idifying Volum e (l/h) EER / C.O.P (W/W) Energy Clas s Model of Indoor Unit Fan Motor Speed (r/m in) (SH/H/M/L) Output of Fan Motor (W) 2 3.51 2.71 HSPF=10.2(Region Ⅳ ) SEER=20 HSPF=8.8(Region Ⅴ ) GWH18AC-D3DNA2B/I 1500/1150/1050/950 1500/1200/1100/1000 20 Input Power of Heater (W) / Fan Motor Capacitor (μF) Fan Motor RLA(A) 1.5 Fan Type Diam eter-Length (m m ) Evaporator Indoor unit 12.4 830/750/650/550 Pipe Diam eter (m m ) Row-Fin Gap(m m ) Coil length (l) X height (H) X coil width (L) Swing Motor Model Output of Swing Motor (W) 0.25 Cros s flow fan Φ98X733 Alum inum fin-copper tube Φ7 2-1.4 740X304.8X25.4 MP28VB 2.5 Fuse (A) PCB 3.15A Sound Pres s ure Level dB (A) (SH/H/M/L) 46/43/40/35 Sound Power Level dB (A) (SH/H/M/L) Dim ens ion (W/H/D) ( m m ) Dim ens ion of Package (L/W/H)( m m ) Net Weight /Gros s Weight (kg) 56/53/50/45 960X300X195 1035X390X280 13/18 7 Specifications Model of Outdoor Unit GWH18AC-D3DNA1B/O CB115W0430 Product Code Com pres sor Manufacturer/tradem ark China Res ources (Shenyang) Sanyo CO.,LTD C-6RZ146H1A Com pres sor Model Twin rotary com pres sor Com pres sor Type L.R.A. (A) 41 Com pres sor RLA(A) 8.4 Com pres sor Power Input(W) 1640 Overload Protector 1NT11L-3979 Throttling Method Electric expand valve Transducer starting Starting Method Working Tem p Range (℃) Condenser 5 ≤T≤46 -15 ≤T≤30 Aluminum fin-copper tube Pipe Diam eter (mm ) 7 Rows -Fin Gap(m m) 2-1.4 Coil length (l)X height (H) X coil width (L) Fan Motor Speed (rpm) (H/M/L) Outdoor Output of Fan Motor (W) Fan Motor RLA(A) unit Fan Motor Capacitor(μF) Air Flow Volum e of Outdoor Unit(m 3/h ) Fan Type Fan Diam eter (mm ) Defros ting Method 837X660X38.1 690/500 60W 0.4 / 3200 Axial fan Φ520 Auto defros t Climate Type T1 Is olation I Moisture Protection Permis sible Exces s ive Operating Pres s ure for the Dis charge Side(MPa) Permis sible Exces s ive Operating Pres s ure for the Suction Side(MPa) Sound Pres sure Level dB (A) IP24 3.8 1.2 54 Sound Power Level dB (A) 64 Dim ens ion (W/H/D) ( m m ) 890X700X340 Dim ens ion of Package (L/W/H)( m m ) Net Weight /Gross Weight (kg) Refrigerant and Charge (kg) Length (m ) Max Distance 50/55 R410A/1.45 8 Gas additional charge(g/m) Connecti Outer Diameter on Pipe 1030X460X735 20 Liquid Pipe (mm ) Φ6 Gas Pipe (m m) Φ12 Height (m ) 15 Length (m ) 30 The above data is subject to change without notice. Please refer to the nameplate of the unit. 8 Specifications Model GWH24AC-D3DNA1B Product Code CB11500450 COOLING Function HEATING Rated Voltage(V) 208-230 Frequency(Hz) Total Capacity (W) Standard (Low~High) Total Capacity (Btu/h) Standard (Low~High) 60 6450(2300~7680) 8200(1750~8200) 22000(7800~26200) 28000(6000~28000) 1832(220~2660) 2700(260~2700) Rated Input (W) 2660 2700 Rated Current (A) 12.2 Power Input (W) Standard (Low~High) 12.5 Air Flow Volum e (m 3/h) (SH/H/M/L) Dehum idifying Volum e (l/h) EER / C.O.P (W/W) Energy Clas s Model of Indoor Unit Fan Motor Speed (r/m in) (SH/H/M/L) Output of Fan Motor (W) 2.5 3.51 3.04 HSPF=10.5(Region Ⅳ ) HSPF=8.8(Region Ⅴ ) SEER=19 GWH24AC-D3DNA1B/I 1380/1000/900/750 1380/1050/950/850 35 Input Power of Heater (W) / Fan Motor Capacitor (μF) Fan Motor RLA(A) 2.5 Fan Type Diam eter-Length (m m ) Evaporator Indoor unit 1030/800/700/600 Pipe Diam eter (m m ) Row-Fin Gap(m m ) Coil length (l) X height (H) X coil width (L) Swing Motor Model Output of Swing Motor (W) 0.45 Cros s flow fan Φ98X828 Alum inum fin-copper tube Φ7 2-1.5 836X400X25.4 MP35XX 2.5 Fuse (A) PCB 3.15A Sound Pres s ure Level dB (A) (SH/H/M/L) 51/43/40/35 Sound Power Level dB (A) (SH/H/M/L) 61/53/50/45 Dim ens ion (W/H/D) ( m m ) 1090X330X208 Dim ens ion of Package (L/W/H)( m m ) 1160X410X310 Net Weight /Gros s Weight (kg) 16/21 9 Specifications GWH24AC-D3DNA1B/O Model of Outdoor Unit CB115W0450 Product Code Com pres sor Manufacturer/tradem ark China Resources (Shenyang) Sanyo CO.,LTD C-6RZ146H1A Com pres sor Model Twin rotary compress or Com pres sor Type 41 L.R.A. (A) 8.4 Com pres sor RLA(A) Com pres sor Power Input(W) 1640 Overload Protector 1NT11L-3979 Throttling Method Electric expand valve Trans ducer s tarting Starting Method Working Tem p Range (℃) Condenser 5 ≤T≤46 -15 ≤T≤30 Alum inum fin-copper tube Pipe Diam eter (mm ) 7 Rows -Fin Gap(m m) 2-1.4 Coil length (l)X height (H) X coil width (L) Fan Motor Speed (rpm) (H/M/L) Outdoor Output of Fan Motor (W) Fan Motor RLA(A) unit Fan Motor Capacitor(μF) Air Flow Volum e of Outdoor Unit(m 3/h ) Fan Type Fan Diam eter (mm ) 967X748X38.1 780 90W 0.6 / 4200 Axial fan Φ552 Defros ting Method Auto defrost Climate Type T1 Is olation I Moisture Protection IP24 Permis sible Exces s ive Operating Pres s ure for the Dis charge Side(MPa) Permis sible Exces s ive Operating Pres s ure for the Suction Side(MPa) Sound Pres sure Level dB (A) 3.8 1.2 56 Sound Power Level dB (A) 66 Dim ens ion (W/H/D) ( m m ) 920X790X370 Dim ens ion of Package (L/W/H)( m m ) Net Weight /Gross Weight (kg) Refrigerant and Charge (kg) Length (m ) Max Distance 54/60 R410A/1.80 8 Gas additional charge(g/m) Connecti Outer Diameter on Pipe 1065X485X840 30 Liquid Pipe (mm ) Φ6 Gas Pipe (m m) Φ16 Height (m ) 15 Length (m) 30 The above data is subject to change without notice. Please refer to the nameplate of the unit. 10 Specifications Model GWH24AC-D3DNA2B Product Code CB11500490 COOLING Function HEATING Rated Voltage(V) 208-230 Frequency(Hz) Total Capacity (W) Standard (Low~High) Total Capacity (Btu/h) Standard (Low~High) 60 6450(2300~7680) 8200(1750~8200) 22000(7800~26200) 28000(6000~28000) 1832(220~2660) 2700(260~2700) Rated Input (W) 2660 2700 Rated Current (A) 12.2 Power Input (W) Standard (Low~High) 12.5 Air Flow Volum e (m 3/h) (SH/H/M/L) Dehum idifying Volum e (l/h) EER / C.O.P (W/W) Energy Clas s Model of Indoor Unit Fan Motor Speed (r/m in) (SH/H/M/L) Output of Fan Motor (W) 2.5 3.51 3.04 HSPF=10.5(Region Ⅳ ) HSPF=8.8(Region Ⅴ ) SEER=19 GWH24AC-D3DNA2B/I 1380/1000/900/750 1380/1050/950/850 35 Input Power of Heater (W) / Fan Motor Capacitor (μF) Fan Motor RLA(A) 2.5 Fan Type Diam eter-Length (m m ) Evaporator Indoor unit 1030/800/700/600 Pipe Diam eter (m m ) Row-Fin Gap(m m ) Coil length (l) X height (H) X coil width (L) Swing Motor Model Output of Swing Motor (W) 0.45 Cros s flow fan Φ98X828 Alum inum fin-copper tube Φ7 2-1.5 836X400X25.4 MP35XX 2.5 Fuse (A) PCB 3.15A Sound Pres s ure Level dB (A) (SH/H/M/L) 51/43/40/35 Sound Power Level dB (A) (SH/H/M/L) 61/53/50/45 Dim ens ion (W/H/D) ( m m ) 1090X330X208 Dim ens ion of Package (L/W/H)( m m ) 1160X410X310 Net Weight /Gros s Weight (kg) 16/21 11 Specifications GWH24AC-D3DNA1B/O Model of Outdoor Unit CB115W0450 Product Code Com pres sor Manufacturer/tradem ark China Resources (Shenyang) Sanyo CO.,LTD C-6RZ146H1A Com pres sor Model Twin rotary compress or Com pres sor Type 41 L.R.A. (A) 8.4 Com pres sor RLA(A) Com pres sor Power Input(W) 1640 Overload Protector 1NT11L-3979 Throttling Method Electric expand valve Trans ducer s tarting Starting Method Working Tem p Range (℃) Condenser 5 ≤T≤46 -15 ≤T≤30 Alum inum fin-copper tube Pipe Diam eter (mm ) 7 Rows -Fin Gap(m m) 2-1.4 Coil length (l)X height (H) X coil width (L) Fan Motor Speed (rpm) (H/M/L) Outdoor Output of Fan Motor (W) Fan Motor RLA(A) unit Fan Motor Capacitor(μF) Air Flow Volum e of Outdoor Unit(m 3/h ) Fan Type Fan Diam eter (mm ) 967X748X38.1 780 90W 0.6 / 4200 Axial fan Φ552 Defros ting Method Auto defrost Climate Type T1 Is olation I Moisture Protection IP24 Permis sible Exces s ive Operating Pres s ure for the Dis charge Side(MPa) Permis sible Exces s ive Operating Pres s ure for the Suction Side(MPa) Sound Pres sure Level dB (A) 3.8 1.2 56 Sound Power Level dB (A) 66 Dim ens ion (W/H/D) ( m m ) 920X790X370 Dim ens ion of Package (L/W/H)( m m ) Net Weight /Gross Weight (kg) Refrigerant and Charge (kg) Length (m ) Max Distance 54/60 R410A/1.80 8 Gas additional charge(g/m) Connecti Outer Diameter on Pipe 1065X485X840 30 Liquid Pipe (mm ) Φ6 Gas Pipe (m m) Φ16 Height (m ) 15 Length (m) 30 The above data is subject to change without notice. Please refer to the nameplate of the unit. 12 Specifications 2.2 Operation Characteristic Curve Models:GWC18AC-D3DNA1B,GWH18AC-D3DNA1B,GWH18AC-D3DNA2B Cooling Heating 11 11 9 Current (A) 8 220V 9 8 7 6 230V 5 4 3 7 230V 6 5 240V 4 3 240V 2 220V 10 Current (A) • Conditions Indoor : DB26.7˚C/WB19.4˚C Outdoor : DB35˚C/WB23.9˚C Indoor air flow : Turbo Pipe length : 7.6m 10 • Conditions Indoor : DB21.1˚C/WB15.6˚C Outdoor : DB8.33˚C/WB6.11˚C Indoor air flow : Turbo Pipe length : 7.6m 2 1 1 0 0 0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 100 110 120 Compressor speed (rps) Compressor speed (rps) Models:GWC24AC-D3DNA1B,GWH24AC-D3DNA1B,,GWH24AC-D3DNA2B Cooling Heating 11 11 9 Current (A) 8 220V 10 220V 9 8 Current (A) • Conditions Indoor : DB26.7˚C/WB19.4˚C Outdoor : DB35˚C/WB23.9˚C Indoor air flow : Turbo Pipe length : 7.6m 10 7 6 230V 5 4 3 7 230V 6 5 240V 4 3 240V 2 • Conditions Indoor : DB21.1˚C/WB15.6˚C Outdoor : DB8˚C/WB6.11˚C Indoor air flow : Turbo Pipe length : 7.6m 2 1 1 0 0 0 10 20 30 40 50 60 Compressor speed (rps) 70 80 90 0 10 20 30 40 50 60 70 80 90 100 110 120 Compressor speed (rps) 13 Specifications 2.3 Capacity Variation Ratio According to Temperature Cooling Heat i n g 105 110 100 100 Capacity ratio (%) Capacity ratio (%) 95 90 85 80 75 70 Conditions Indoor:DB26.7℃/WB19.4℃ Indoor air flow:Turbo Pipe length:7.6m 65 60 55 50 32 33 34 35 36 37 38 39 40 41 42 90 80 70 Conditions Indoor:DB21.1℃/WB15.6℃ Indoor air flow:Turbo Pipe length:7.6m 60 50 40 –15 43 Outdoor temp. (˚C) –1 0 –5 0 5 7 Outdoor temp. (˚C) 2.4 Operation Data Cooling Temperature (°C) Indoor 26.7/19.4 condition Outdoor 35/– Model name Standard pressure P (MPa) Heat exchanger temp. pipe Compresso Outdoor fan r revolution mode (rps) T1 (°C) T2 (°C) Indoor fan mode 18K 0.9 to 1.1 12 to 14 41 to 43 High High 62 24K 0.8 to 1.0 10 to 12 43 to 45 High High 78 Model name Standard pressure P (MPa) 18K 24K Heating Temperature (°C) Indoor 21.1/– condition Outdoor 8/6.11 Heat exchanger temp. pipe Indoor fan mode Compresso Outdoor fan r revolution mode (rps) T1 (°C) T2 (°C) 2.2 to 2.4 37 to 38 2 to 4 High High 62 2.5 to 2.7 42 to 44 0 to 3 High High 80 P: The high side pressure measured from gas valve T1:The coil temperature of indoor unit T2:The coil temperature of outdoor unit NOTES : (1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bent. (Thermistor themometer) (2) Connecting piping condition : 7.6 m 14 10 Specifications 2.5 Noise criteria curve tables for both models Indoor side noise when blowing Outdoor side noise 60 50 Noise/dB(A) Noise/dB(A) 50 40 30 40 30 20 0 Low High Middle Indoor fan motor rotating speed 18K 24K 20 40 60 80 100 Super High Compressor frequency/Hz 18K 24K 15 Constrction views 3. Construction Views 3.1 Indoor Unit H D W 7cm Left Right 15cm 960 694 119 Uint:mm 147 50 300 18K 15cm 125 61 24K 1090 685 185 55 55 330 220 114 110 MODEL 18K 24K 16 W( 960 1090 ) H( 300 330 ) D( 195 208 ) Constrction views 3.2 Outdoor Unit 18K 700 890 396 963 560 368 340 Unit:mm 24K 790 920 427 1000 399 370 610 17 Constrction views 4. Refrigerant System Diagram (1)Cooling Only Models 3-Way (2)Cooling & Heating Models 3-Way valve Heat exchanger ( INDOOR ) Compressor Muffler 2-Way valve 4-Way valve Sub-accumulator Strainer Expansion valve Strainer Heat exchanger ( OUTDOOR ) Strainer Cooling Heating Models: GWC18AC-D3DNA1B GWH18AC-D3DNA1B GWH18AC-D3DNA2B Liquid:1/4”(6mm) Gas:1/2”(12mm) 18 Models: GWC24AC-D3DNA1B GWH24AC-D3DNA1B GWH24AC-D3DNA2B Liquid:1/4”(6mm) Gas:5/8”(16mm) Refrigerant System Diagram 5. Schematic Diagram 5.1 Meaning of marks Indoor Unit Symbol Color symbol WHITE WH Symbol Color symbol BROWN BN YE YELLOW BU BLUE RD RED BK BLACK YELLOW GREEN YEGN PROTECTIVE EARTH Outdoor Unit Symbol Parts name Symbol L1 L2 REACROR WH WHITE YK Four-way-Valve YE YELLOW RD RED EKV Electronic expansion valve BN SAT OVERLOAD BN BROWN COMPRESSOR BU BLUE PROTECTIVE EARTH BK BLACK YEGN YELLOW GREEN L Reactor COMP Color symbol 5.2 Electrical wiring TUBE ROOM TEM.SENSOR TEM.SENSOR DISPLAY AP2 0 0 RT1 RT2 ROOM DISP1 DISP2 N COM-OUT AC-L CAP AP1 JUMP PRINTED CIRCUIT BOARD XT N(1) 2 3 1BU 2BK 3BN 4YEGN 5YEGN PE EVAPORATOR SWING-UD PG M2 M1 PE ELECTRIC BOX OUTDOOR UNIT TUBE PGF SWING MOTOR 19 Schematic Diagram Models GWC18AC-D3DNA1B/O,GWC24AC-D3DNA1B/O 4WH 5WH SAT WARNING Please don't touch any terminal when the voltage of terminal P(DC+) and N(DC-) at AP1 is higher than 30V to prevent the risk of electrical shock! OUTTUBE OUTROOM EXHAUST TEM.SENSORTEM.SENSORTEM.SENSOR RT2 0 RT1 0 R COMP E 6YEGN S C(T) PE 1YE 2BU 3RD RT3 0 X1 15YE 16BU 17RD 14YEGN PE COMP-U COMP-V COMP-W PE PE INDOOR UNIT T-SENSOR 7BU N(1) 11BK 2 8BN 3 9BN L1 10BU L2 G 20YEGN COM-INNER OVC-COMP AP1 AC-L N HALL FA OFAN PE XT INDC1 INDC2 PFCC1 PFCC2 13OG 12WH L1 L2 POWER 18YE 19YE M EKV FAN MOTOR L YEGN C2 PE Models GWH18AC-D3DNA1B/O,GWH24AC-D3DNA1B/O 4WH 5WH SAT WARNING Please don't touch any terminal when the voltage of terminal P(DC+) and N(DC-) at AP1 is higher than 30V to prevent the risk of electrical shock! R COMP E 6YEGN OUTTUBE OUTROOM EXHAUST TEM.SENSORTEM.SENSORTEM.SENSOR RT1 0 RT2 0 S C(T) PE 1YE 2BU 3RD RT3 0 X1 15YE 16BU 17RD 14YEGN PE COMP-U COMP-V COMP-W PE PE INDOOR UNIT N(1) 7BU 11BK 2 3 8BN 9BN L1 L2 G XT T-SENSOR 10BU 20YEGN COM-INNER OVC-COMP AP1 AC-L N FA 4V HALL OFAN PE INDC1 INDC2 PFCC1 PFCC2 12WH 13OG 18YE 19YE 4YV L1 L2 POWER M EKV FAN MOTOR YEGN L C2 PE These circuit diagrams are subject to change without notice. Please refer to the one supplied with the unit. 20 Schematic Diagram 5.3 Printed Circuit Board TOP VIEW Live wire Protective tube Live wire of health function Power cord of PG motor Jumper cap Connect to up &down swing motor Feedback wire of PG motor Null wire of health function Null wire Display port Communication port to outdoor unit Temp sensor BOTTOM VIEW 21 Schematic Diagram TOP VIEW Compressor port Temp sensor HALL port of fan 4-way valve Electronic Overload protector of compressor Outdoor fan expansion valve Communication port with indoor unit Live wire Ground wire Null wire Port 2 of reactor BOTTOM VIEW 22 Port of capacitor PFC Port1 of reactor Function and Control 6. Function and Control 6.1 Remote Control Operations 1 ON/OFF Press it to start or stop operation.setting. 2 - : Press it to decrease temperature 3 + : Press it to increase temperature setting. 4 FAN Press it to set fan speed. 5 MODE Press it to select operation mode(AUTO/COOL/DRY/FAN/HEAT/I FEEL). 6 I FEEL 7 Press it to select HEALTH function ON/OFF. 1 2 4 3 7 Press it to select AIR function ON/OFF. 9 5 6 8 Press it set clock. 8 10 TIMER ON Press it to set auto-on timer. 9 10 11 11 12 13 14 12 15 CLOCK Press it set swing angle. X-FAN(X-FAN is the alternative expression of BLOW for the purpose of understanding.) 17 16 13 TEMP 14 TIMER OFF Press it to set auto-off timer 15 TURBO 16 SLEEP 17 LIGHT Press it to turn on/off the light. 1 ON/OFF : Press this button to start the unit operation .Press this button again to stop the unit operation. 2 Press this button to decrease set temperature.Holding it down above 2 seconds rapidly decreases set temperature. In . AUTO mode, set temperature is not adjustable. 3 +: Press this button to increase set temperature.Holding it down above 2 seconds rapidly increases set temperature. In AUTO mode, set temperature is not adjustable. 4 FAN : This button is used for setting Fan Speed in the sequence that goes from AUTO, , , to , then back to Auto. Auto Low speed Medium speed High speed 23 Function and Control 5 MODE : 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: FAN HEAT * COOL AUTO DRY *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 temp erature to make indoor room comfortable. 6 I FEEL: Press this button to turn on I FEEL function. The unit automatically adjust temperature according to the sensed temperature. Press this button again to cancel I FEEL function. 7 Press this button to set HEALTH function ON or OFF. After the unit is turned on, it defaults to HEALTH function ON. 8 Press this button to select AIR function ON or OFF. 9 CLOCK : Press CLOCK button, blinking. Within 5 seconds, pressing + or - button adjusts the present time.Holding down either button above 2 seconds increases or decreases the time by 1 minute every 0.5 second and then by 10 minutes every 0.5 second. During blinking after setting, press CLOCK button again to confirm the setting,and then will be constantly displayed. 10 TIMER ON : Press this button to initiate the auto-ON timer. To cancel the auto-timer program,simply press this button again. After press of this button, disappears and "ON "blinks .00:00 is displayed for ON time setting. Within 5 seconds,press + or - button to adjust the time value. Every press of either button changes the time setting by 1 minute. Holding down either button rapidly changes the time setting by 1 minute and then 10 minutes. Within 5 seonds after setting, press TIMER ON button to confirm. 11 : Press this button to set up &down swing angle, which circularly changes as below: OFF This remote controller is universal . If any command , or is sent out, the unit will carry out the command as indicates the guide louver swings as: 12 X-FAN: Pressing X-FAN button in COOL or DRY mode,the icon in order is displayed and the indoor fan will continue operation for 10 min utes to dry the indoor unit even though you have turned off the unit. After energization, X-FAN OFF is defaulted. X-FAN is not available in AUTO,FAN or HEAT mode. 13 TEMP: Pressing TEMP button, (set temperature), (indoor ambient temperature) and (outdoor ambient temperatur) is displayed circularly .The unit defaults not to display the icon. During operation of TEMP button, the set temperature is always displayed. Note: Outdoor ambient temperature is only displayed for some models. 14 TIMER OFF : Press this button to initiate the auto-off timer. To cancel the auto-timer program,simply press the button again.TIMER OFF setting is the same as TIMER ON. 15 TURBO: Press this button to activate / deactivate the Turbo function which enables the unit to reach the preset temperature in 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 24 Function and Control high fan speed. (This function is not applicable for some models) 16 SLEEP: Press this button to go into the SLEEP operation mode. Press it again to cancel. This function is available in COOL , HEAT (Only for models with heating function) or DRY mode to maintain the most comfortable temperature for you. 17 LIGHT: Press LIGHT button to turn on the display's light and press this button again to turn off the display’s light.if the light is tunrned on, is displayed. If the light is tunrned off disappears. 3 and 2 About lock Press "+ + " and "-- " buttons simultaneously to lock or unlock the keypad. If the remote controller is locked, pressing any button, 5 and 2 is displayed. In this case, blinks three times. About switch between fahrenheit and cenrigrade At unit OFF, press "MODE " and "- " buttons simultaneously to switch between ć and ̧ . 6.2 Changing Batteries and Notices 1.Remove the battery cover plate from the rear of the remote controller. (As shown in the figure) 2.Take out the old batteries. 3.Insert two new AAA1.5V dry batteries, and pay attention to the polarity. 4. Close the battery cover plate. ƾ Notes: ● When replacing the batteries, do not use old or different types of batteries,otheerwise, it may cause malfunction. ● If the remote controller will not be used for a long time, please remove batteries to prevent batteries from leaking. ● The operation should be performed in its receiving range. ● ● It should be kept 1m away from the TV set or stereo sound sets. If the remote controller does not operate normally, please take the batteries out and replace them after 30 seconds.If still not operating properly, replace the batteries. Sketch map for replacing batteries 25 Function and Control 6.3 Description of each control operation 1.Basic function of system (1)Cooling mode 1.Under this mode, fan motor, swing will work under setting status, the temp. range is 16-30 scale) (61-86 Fahrenheit 2.Outdoor unit malfunction or unit stop running, indoor unit will keep origina l running status, malfunction displayed. 3.When 0 (Tset-Tamb.), if indoor fan motor is high speed, that the fan motorist running in middle speed, the middle speed or low speed will be maintained;(this condition should be executed when compressor start up);the super , the fan will return to the setting fan speed. high speed will not rotate; When (Tamb-Tset) (2)Dehumidifying mode 1.Under this mode, fan motor will run at low speed, swing will work at setting status, setting temp. range is 16-30 (61-86 Fahrenheit scale) 2.Outdoor unit malfunction or protection, unit will stop, indoor unit will keep original running status, malfunction displayed. (3)Fan mode Under this mode, indoor fan motor could be setted at high speed, middle speed, low or auto speed, compressor, outdoor unit and four-way valve will stop to run. Under this mode, temp. range should be 16-30 (61-86 Fahrenheit scale) (4)Heating mode 1.Under this mode, temp. range should be 16-30 (61-86 Fahrenheit scale) 2.Working condition and procedure of heating mode: When unit turn on and enter into Heating mode, indoor unit enter into anti-cool wind mode, when unit is 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 a.If heating temp. meets the compressor stop running condi tion, compressors, outdoor fan motor will stop to run, the upper and lower guide louver will rotate to horizontal position L, indoor fan moto r run at setting fan speed for 60s, then the indoor fan motor will stop to run. b.Due to PG motor block running, the air guide board will keep the position when it stopping. (under each mode), other malfunction unit will stop to run, the upper and lower air guide louver will rotate to horizontal position L, indoor fan unit will run at setting fan speed and run for 60s, indoor fan unit will stop to run. (5)Auto mode: 1.When Tam 26 , select the cooling mode, at this time, the setting temp. is 25 .(77 Fahrenheit scale) 2.Cooling and heating units: Tamb (68Fahrenheit scale) 3. Cooling only unit: When Tamb 22 22 ,will runat heating mode, at this time, the setting temp. is 20 , it will run at Fan mode, the setting temp. is 25 (77 Fahrenheit scale) Tindoor amb. 25 ,firstly enter into auto mode and run at auto fan speed, other modes will 4.When 23 run at auto mode, will keep the previous running mode. (W hen entering into Dehumidifying mode, it will run at auto fan speed) (6) Auto fan speed control mode 26 Function and Control 2. Display state of indoor indicators (1) State of indoor display board 1. When the unit is powered on, all patterns will be displayed and then only power indicator is on. When the unit is turned on with a remote controller, the operating indicator is on and operation mode which is set currently is displayed. 2. In defrosting mode, "H1" is displayed on "Double 8". 3. Set temperature is displayed on "Double 8". Display of operation patterns and mode patterns When the unit is powered on, all patterns will be displayed and the standby operation indicator will become red. When the unit is turned on through a remote controller, the operation indicator is light. At the same time, operating mode patterns (mode indicators include cooling, heating and dehumidification modes) set currently are displayed, and dynamic display patterns of wind speed are displayed. If the light button is switched off, all display will be turned off. Temperature display control mode of separated air conditioner 1. When user sets the remote controller at set temperature display, currently set temperature will be displayed. 2. Only when remote signals are converted from other display states into indoor ambient temperature display state, the remote controller will display indoor ambient temperature for 5 seconds and then return to set temperature display. 3. Only when remote signals are converted from other display states into outdoor ambient temperature display state, the remote controller will display outdoor ambient temperature for 5 seconds and then return to set temperature display. 4. If the controller is lack of outdoor display functions, as the signal is received, set temperature will be displayed. 5. When the unit is turned off, temperature display will be compulsively set at given temperature by the controller. When the unit is turned on, patterns as set by remote signals will be displayed. 6. If user does not set up temperature display state, given temperature will be displayed. (2) Failure display of indoor unit 1. Requirements for failure display When multiple failures appear at the same time, failure protection codes shall be displayed alternatively. (1) Hardware failures shall be displayed immediately, referring to requirements in "Failure State Display Table"; (2) Operation states shall be displayed immediately, referring to requirements in "Failure State Display Table"; (3) Other failures shall be displayed 200s after the compressor stops, referring to requirements 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 is, during indicator blinking, failure code corresponding to such indicator shall be displayed on Double 8. 4. Method of remote calling of failure display Entering the failure remote calling mode: push the light button four times within 3s to call out relevant failure protection code; Quit the failure remote calling mode: push the light button four times within 3s or call out failure display to enter it for 5 minutes and then quit. 3. Other control targets (1) Up and down wind blow functions: model of stepping motor is MP28EA. When the unit is powered on, the up and down wind blow motor will turn a wind deflector anti-clockwise to Position 0 to shut down the air outlet. When the unit is switched on and wind blow function is not preset, under the heating mode, up and down wind blades will turn clockwise to position D; and under other modes, the up and down wind blades will turn clockwise to position L. If wind blow function is set at the same time as the unit is switched on, the wind blades will swing between position L and D. The wind blades can be kept in seven states: position L, position A, position B, position C, position D, swing between position L and D, stop at one position from L to D. When the unit is turned off, the wind deflector will be closed up to position 0. Wind blow action is effective only when wind blow commands are set and the indoor unit is running. Note: When the wind blades are set at position L to B, position A to C, or position B to D through remote setting, the wind deflector will swing between position L and D. L—A—B—C—D. (2) Buzzer When the controller is powered on, signals from a remote controller are received, or the auto button is pushed, a buzzer will give out prompt tone. (3) Auto button When the button is pushed, the unit will operate in auto mode and the indoor fan will run in auto state. When the indoor fan is running, the wind blow motor will work. When the button is pushed again, the unit will be switched off. At the same time as the button is pushed, the whole unit will be powered on and enter into fast test mode; when the unit is powered on and detects for continuous 20s (such time shall not be fast tested) that the auto button is pushed, and if the unit is currently at fast test state, the unit will quit the fast test state. 27 Function and Control (4) Sleep function This mode is effective only in cooling and heating modes. Proper sleep curves shall be selected for operation according to preset temperature. In cooling mode: (1) When initial temperature is set at 16-23 , an increase of 1 will be gained every hour after the sleep function is activated. After 3 is raised, the temperature will be maintained. After operation for 7 hours, temperature will go down by 1 , afterwards, the unit will operate at such temperature. (2) When initial temperature is set at 24-27 , an increase of 1 will be gained every hour after the sleep function is activated. After 2 is raised, the temperature will be maintained. After operation for 7 hours, temperature will go down by 1 , afterwards, the unit will operate at such temperature. (3) When initial temperature is set at 28-29 , an increase of 1 will be gained every hour after the sleep function is activated. fter 1 is raised, the temperature will be maintained. After operation for 7 hours, temperature will go down by 1 , afterwards, the unit will operate at such temperature. In heating mode: (1) When initial temperature is set at 16 , the unit will operate at such temperature. (2) When initial temperature is set at 17-20 , a decrease of 1 will be gained every hour after the sleep function is activated. After 1 is reduced, the temperature will be maintained. (3) When initial temperature is set at 21-27 , a decrease of 1 will be gained every hour after the sleep function is activated. After 2 is reduced, the temperature will be maintained. (4) When initial temperature is set at 28-30 , a decrease of 1 will be gained every hour after the sleep function is activated. After 3 is reduced, the temperature will be maintained. (5) Timing function The main board integrates general timing and moment timing. Such two timing functions can be selected through a remote controller on which different functions are arranged. 1 General timing: ○ Timing start: timing start can be set when the unit is off. When preset time is reached, the controller will operate in a preset mode. Timing can be set at an interval of 0.5 hour in a scope of 0.5 - 24 hours. Timing stop: timing stop can be set when the unit is on. When preset time is reached, the system will be turned off. Timing can be set at an interval of 0.5 hour in a scope of 0.5 - 24 hours. 2 Moment timing ○ Timing start: if timing start is set when the system is 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 change: When the system is in timing mode, start and stop can be set through the On/Off button on the remote controller; or timing time can be reset and the system will operate according to the latest setting. When the system is in operation and both timing start and stop are set, the system will stay at currently set operation state. When preset timing stop time is reached, the system will stop working. When the system is at stop state and both timing start and stop are set, the system will keep at stop state. When preset timing start time is reached, the system will start operation. From then on, the system will operate in preset mode at a preset start time and stop at a preset stop time everyday. If timing stop time is set as the same as timing start time, a stop command will be executed. (6) Dry and mildew proof function Dry and mildew proof function can be set in cooling and dehumidification modes. (7) Control of indoor fan Indoor fan can be set at four levels, super-high, high, middle and low, with a remote controller. When one level is set, the fan will thus operate at such level. The fan can also be set at auto state. (8) Power off Memory Function What will be memorized includes modes, up and down wind blow, light, preset temperature, preset wind speed, general timing (no memory for moment timing), and Fahrenheit /Celsius degree. When the unit is powered on again after power failure, operation continues according to memorized content. If timing is not set by the last remote control command, the system will memorize the last remote control command and operate in the mode specified in the last remote control command. If timing is set by the last remote control command and power failure happens before the preset time, the system, as powered on again, will memorize the timing function set by the last remote control command. Timing will be re-counted from the time at which the system is powered again. If timing is set by the last remote control command and timing of start or stop is reached before power failure, the system, as powered on again, will memorize operation state before power failure and will not perform timing action. Moment timing is out the range of memory. 28 Function and Control (9) Locked Protection of PG Motor When starting up the fans, if the motor has run at a lower speed continuously for a period, for preventing automatic protection of the motor, stop running, and display the locked operation; if the machine is running at present, the code of the locked fault---H6 of double-eight digital tubes will be displayed; if the machine is shut down at present, the information of the locked fault will not be displayed. (10) Super Power Function In cooling and heating modes (automatic, dehumidifying and air-supplying modes are without strong power), press the button of Super Power, the wind speed on the remote controller is displayed as super-high air flow, and the inner fans are also turned to super-high air flow; (11) Health Function When the inner fans are running, the remote controller is set at the Health function at this time (if there is no Health button on the remote controller, the Health On order is defaulted), then start the Health function device. 5. Fault Detection of Temperature Sensor (1) Indoor Environment Temperature Sensor: Detect the fault of thermo-bulb at any time; (2) Indoor Pipe Temperature Temperature Sensor: During the defrosting period, the fault of the thermo-bulb will be not detected, which shall be detected in 5 minutes after defrosting is completed; the fault of the thermo-bulb will be 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 temperature safety stops and faults of the thermo-bulb simultaneously. 2. When the thermo-bulb is detected in open circuit continuously for 30 seconds: stop the machine in protection, directly display corresponding faults of the thermo-bulb. 6. Forced Running Function of the Inner Units (It is refrigerants reclaiming function which is used for the condition that refrigerants cannot be reclaimed by cooling operation in the season with low temperature.) (1) Enter into Forced Running Control Within 5 minutes after power-up, press the Lights Off button on the remote controller continuously for three times within 3 seconds to enter into the fluorine collecting mode, and display Fo, send the fluorine-collecting mode for 25 minutes continuously, each load will be treated as cooling when starting the machine (set the air flow as High, set the temperature as 16 ). (2) Exit from the Forced Running Control After receiving any remote signal, or signal of keys, the fluorine-collecting mode will exit, and operate in accordance with the current orders set; or exit the fluorine-collecting mode after running for 25 minutes, and the machine will be shut down automatically. Outdoor Units 1. Input Parameter Compensation and Calibration (1) Check the ambient temperature compensation function Indoor ambient temperature compensation function a. In cooling mode, the indoor ambient temperature participating in computing control = (Tindoor ambient temperature – Tcooling indoor ambient temperature compensation) b. In heating mode, the indoor ambient temperature participating in computing control= (Tindoor ambient temperature – Theating indoor ambient temperature compensation) (2) Check effective judgment controls of parameters Effective judgment function of the outdoor exhaust temperature thermo-bulb When conditions a and b are satisfied, the outdoor exhaust temperature thermo-bulb is judged not to be connected into place, the mainboard of outer units will display failure of the outdoor exhaust temperature thermo-bulb (not connected into place), stop the machine for repairing, and resume the machine by remote controls of ON/OFF. a. Judgment of exhaust detection temperature change: After the compressor starts up and runs for 10 minutes, if the compressor frequency f ≥ 40Hz, and the rising value Texhaust (Texhaust (after start-up for 10 minutes) - Texhaust (before start-up)) < 2 , the outdoor exhaust temperature thermo-bulb can be judged not to be connected into place (judging once when the power is on the first time). b. Comparative judgment of exhaust detection temperature and condenser detection temperature (Tpipe temperature = Toutdoor pipe temperature in cooling mode, Tpipe temperature = Tindoor pipe temperature in heating mode): After the compressor starts up and runs for 10 minutes, if the compressor frequency f ≥ 40Hz, and Tpipe temperature ≥ (Texhaust + 3 ), the outdoor exhaust temperature thermo-bulb can be judged not to be connected into place (judging once when power is on the first time). 29 Function and Control 6.4 Functions of Outdoor Unit 1. Input Parameter Compensation (1) Input parameter compensation function As the structure feature of split unit, concerning the comfort, in heating mode, when compressor stops, the indoor ambient temperature is higher than preset temperature for 3 ℃. 2. Check parameters to effectively make judgment and control Insert the outdoor discharge temp sensor into corresponding temp sensor jacket of discharge pipe in order to protect safe and reliable operation of the unit, so that the control system can accurately detect the discharge temp as well as effectively control and protect it. Otherwise, the unit will stop and display the trouble of “outdoor discharge temp sensor failure ( not be inserted correctly)” which can be recovered by pressing ON/OFF button. 3. Cooling Mode 3.1 Conditions and processes of cooling operation: 3.1.1 If the compressor stops, and [Tpreset – (Tindoor ambient – ΔTcooling indoor ambient temperature compensation)] ≤0.5 ℃, start up the unit for cooling operation; 3.1.2 During cooling operation, if 0℃ ≤ [Tpreset – (Tindoor ambient –ΔTcooling indoor ambient temperature compensation)]< 2℃, keep the cooling operation; 3.1.3 During cooling operation, if 2℃ ≤ [Tpreset – (Tindoor ambient –ΔTcooling indoor ambient temperature compensation)], the cooling operation will stop after reaching to the setting temperature. 3.2 Temperature setting range 3.2.1 If Toutdoor ambient ≥ [Tlow-temperature cooling], the temperature can be set at: 16~30℃ (Cooling at roomemperature); 3.2.2 If Toutdoor ambient < [Tlow-temperature cooling], the temperature can be set at: 25~30℃ (Cooling at low temperature), that is, the minimum setting temperature to be judged by outdoor unit is 25℃. 4. Dry Mode 4.1 Conditions and processes of dry operation: same as the cooling mode; 4.2 The temperature setting range is: 16~30℃; 5. Fan Mode 5.1 The compressor, outdoor fan and four-way valve are switched off; 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 temperature compensation) –Tpreset]≤ 0.5℃, start the unit to enter into heating operation; 6.1.2 During heating operation, if 0℃ ≤ [(Tindoor ambient –ΔTheating indoor ambient temperature compensation)–Tpreset] < 2℃, keep the heating operation; 6.1.3 During heating operation, if 2℃ ≤ [(Tindoor ambient –ΔTheating indoor ambient temperature compensation)–Tpreset], the heating operation will stop after reaching the setting temperature. 6.2 The temperature setting range in this mode is: 16~30℃. 7. Defrosting Control (heating) 7.1 After the time for defrosting is judged to be satisfied, if the temperature for defrosting is satisfied for continuous 3minutes, the defrosting operation will start. 7.2 Start defrosting: Compressor stops and starts up 55S later; 7.3 Finish of Defrosting: Compressor stops and starts up 55S later; 7.4 The defrosting operation can exit when any of the conditions below is satisfied: 7.4.1 Toutdoor pipe≥ 12℃; 7.4.2 Toutdoor ambient<-5℃, and the Toutdoor pipe≥ 6℃ last more than 80S; 7.4.3The continuous running time of defrosting reaches. 8. Compressor Control 8.1. The frequency of compressor will be controlled according to the relationship of ambient temperature and preset temperature as well as changing speed of ambient temperature; 8.2 Start the compressor after starting cooling, heating, dry operation, and the outdoor fan for 5s; 8.3 When the unit is off, in safety stops and switching to fan mode, the compressor will stop immediately; 8.4 In all modes: once the compressor starts up, it will not be allowed to stop within 7 min. (Note: except the cases that require stop of the compressor such as fault protection, remote shutdown, mode switching etc.); 30 Function and Control 8.5 In all modes: once the compressor stops, it can’t restart within 3-minute (Note: The indoor units with memory function can be restarted after remote shutdown and powering on again without delay). 9. Outdoor Fan Control 9.1 When the unit is off by remote control、in safety stops or stops after reaching the setting temperature, 1min later,the outdoor fan will stop; 9.2 In fan mode: The outdoor fan stops; 9.3 Start of defrosting: Outdoor fan will stop after compressor stops for 50S; 9.4 Finish of defrosting: Outdoor fan will start up when the compressor stops. 10. 4-way valve control 10.1 The 4-way valve is off under the modes of Cooling, dry and fan; 10.2 In heating mode, the 4-way valve is energized; 10.3 When the unit is off in heating mode or heating mode shifts to other modes, the 4-way valve will be de-energized after compressor stops for 2min; 10.4. After protection stops, the 4-way valve will be de-energized after 4min; 10.5 Start of defrosting: when entering defrosting mode, 4-way valve will be de-energized after the compressor stops for 50s; 10.6 Finish of defrosting: The 4-way valve will be energized after the compressor stops for 50s. 11. Anti-freezing protection 11.1 In cooling and dry mode, if Tindoor pipe<0 is detected for 3min continuously, the unit will stop; if 6℃ <Tindoor pipe, and compressor has stopped for 3min, the unit will resume running; 11.2 In cooling and dry mode, if Tindoor pipe<6℃, running frequency of compressor will be decreased or stop increasing; 11.3 If the unit stops as anti-freezing protection for 6 times, it can not resume running automatically and display trouble code, it can resume by pressing ON/OFF button. During operation, if the compressor operates for over 10min, the times of anti-freezing protection stop will be cleared to zero. When the unit is off/ fan/ heating mode, the malfunction and malfunction times will be cleared to zero. (If the malfunction can not be removed) 12. Overload protection 12.1 In cooling and dry mode: if 65℃ ≤Toutdoor pipe, the unit will stop; if Toutdoor pipe<55℃, and compressor has stopped for 3min, the unit will resume running; 12.2 In cooling and dry mode: 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, it can not resume running automatically and display malfunction. It can resume running by pressing ON/OFF.During operation, if the compressor has operated for over 10 min, the times of overload protection stop will be cleared to zero. When the unit is off or in Fan mode or shifts to heating mode, the malfunction and malfunction times will be cleared to zero immediately. (If the malfunction can not be removed) 13. Compressor discharge temperature protection 13.1 If 115 ℃≤Tdischarge, the unit will stop; if Tdischarge<97 ℃, and compressor has stopped for 3min, the unit will resume running; 13.2 If 97 ℃≤Tdischarge, running frequency of compressor will be decreased or stop increasing; 13.3 If the unit stops as protection of compressor discharge temperature for 6 times, it can not resume running automatically and malfunction will be displayed. It can resume running by pressing ON/OFF. During operation, if the compressor has operated for over 10min, the time of compressor discharge temperature stop will be cleared to zero.When the unit is off/ shifts to fan mode, the malfunction and malfunction times will be cleared. (If the malfunction can not be removed) 14. Current protection 14.1. If 12A≤I alternating-current, running frequency of compressor will be decreased or stop increasing; 14.2. If 17A≤I alternating-current, the unit will stop; and after compressor has stopped for 3min, the unit will resume running; 14.3 If the unit stops as protection for compressor discharge temperature for 6 times, it can not resume running automatically and malfunction will be displayed. It can resume by pressing ON/OFF button. During operation, if the compressor has operated for over 10 min, the time of compressor discharge temperature stop will be cleared to zero. 15. Drop off voltage During compressor operation, the system will stop and malfunction of drop off voltage will occur if voltage downward fluctuates rapidly, and it will re-start up automatically 3min later. 31 Function and Control 16. Communication malfunction If the unit does not receive correct signal from indoor unit for 3min continuously, the unit will stop as communication malfunction protection; if communication malfunction has removed and compressor has stopped for 3min, the unit will resume running. 17. IPM module protection When the compressor starts, if there is overcurrent or low control voltage for IPM module due to some abnormal results, IPM will detect module protection signal as the unit is on. Once the module protective signal is detected, stop the unit with module protection immediately. If the module protection is removed and compressor has stopped for 3min, the unit will be allowed to operate.If the module protection continuously occurs for three times, it can not be removed automatically, and you should press the ON/OFF button to resume operation. If the running time of compressor exceeds 10 min, the module protection times will be cleared. 18. Module overheating protection 18.1 If 80 ℃ ≤Tmodule, 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 exceeds compressor running time, the time of module overheating protection stop will be cleared. When the unit is off or shifts to fan mode,the malfunction and malfunction times will be cleared. (If the malfunction can not be removed). 19 Compressor overload protection 19.1 If detect that the overload switch breaks within continuous 3S, the system will stop as protection; 19.2 If detect that the protection has removed and the compressor has stopped for 3min, the unit will be allowed to operate. 19.3 If the unit stops as compressor overload protection occurred for 3 times continuously, it can not resume running automatically and malfunction will be displayed. It can resume operation by pressing ON/OFF button; and the times of compressor overload protection will be cleared after the compressor has run for 30min. 32 Installation Manual 7. Installation Manual 7.1 Important Notices 1.The unit installation work must be done by qualified personnel according to the local rules and this manual. 2.Before installating, please contact with local authorized maintenance center, if unit is not installed by the authorized maintenance center, the malfunction may not solved,due to discommodious contacts. 3.When removing the unit to the other place, please firstly contact with the authorized Maintenance Center in the local area. Basic Requirements For Installation Position Install in the following place may cause malfunction. If it is unavoidable contact with service center please: ● Place where strong heat sources, vapors, flammable gas or volatile objuct are emitted. ● Place where high-frequency waves are generated by radio equipment, welders and medical equipment. ● Place where a lot of salinities such as coast exists. ● Place where the oil (machine oil) is contained in the air. ● Place where a sulfured gas such as the hot spring zones is generated. ● Other place with special circumstance. Indoor Unit Installation Position Selection 1.The air inlet and outlet vent should be far from the obstruction, make sure that the air can be blown through the whole room. 2.Select a position where the condensing water can be easily drained out, and the place is easily connected for outdoor unit. 3.Select a location where the children can not reach. 4.Can select the place where is strong enough to withstand the full weight and vibration of the unit. And will not increase the noise. 5.Be sure to leave enough space to allow access for routine maintenance. The height of the installed location should be 250cm or more from the floor . 6.Select a place about 1m or more away from TVset or any other electric appliances. 7.Select a place where the filter can be easily taken out. 8.Make sure that the indoor unit installation should accord with installation dimension diagram requirements. 9.Do not use the unit in the immediate surroundings of a laundry a bath a shower or a swimming pool. Outdoor Unit Installation Position Selection 1.Select a location from which noise and outflow air emitted by unit will not inconvenience neighbors, animals, plants. 2.Select a location where there should be sufficient ventilation. 3.Select a location where there should be no obstructions cover the inlet and outlet vent. 4.The location should be able to withstand the full weight and vibration of the outdoor unit and permit safe installation. 5.Select a dry place, but do not expose under the direct sunlight or strong wind. 6.Make sure that the outdoor unit installation dimension should accord with installation dimension diagram, convenient for maintenance, repair. 7.The height difference of connecting the tubing within 15m, the length of connecting the tubing within 30m. 8.Select a place where it is out of reach for the children. 9.Select a place where will not block the passage and do not influence the city appearance. 33 Installation Manual Safety Requirements For Electric Appliances 1. The power supply should be used the rated voltage and AC exc lusive circuit,the power cable diameter should be satisfied. 2.Don't drag the power cable emphatically. 3.It should be reliably earthed,the installation work should be operatedbythe professional. The air switch must have the functions of magnetic tripping and heat tripping, in order to protect the short circuit and overloading. 4. The min. distance from the unit and combustive surface is 1.5m. 5. The appliance shall be installed in accordance with national wiring regulations. 6.An all-pole disconnection switch having a contact separation of at least 3mm in all poles should be connected in fixed wiring. Note: Make sure that the Live wire or Zero line as well as the earth wire in the family power socket can not be wrong connected, there should be reliable and no short circuit in the diagram. Wrong connection may cause fire. Earthing requirements 1. Air conditioner is type I electric appliance, thus please do conduct reliable earthing measure. 2. The yellow-green two-color wire in air conditioner is earthing wire and cannot be used for other propose. It cannot be cut off and be fix it by screw, otherwise it would cause electric shock. 3. The earth resistance should accord to the National Criterion 4. The user power must offer the reliable earthing terminal. Please don't connect the earthing wire with the following place: ķTap water pipe ĸGas pipe Ĺ Contamination pipe ĺ Other places that professional personnel consider them unreliable 5.The model and rating values for fuses according the silk print on fuse cover or related PCB board. Other 1.The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the copper tube. 2. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by aperson responsible for their safety. 3. Children should be supervised that they do not play with the appliance. 34 Installation Manual 7.2 Install indoor unit Install the rear panel 1.Always mount the rear panel horizontally. Due to the water tray of indoor unit has been adopted the both-way drainage design, the outlet of water tray should be adjusted slightly down when installing, that is taking the outlet of the water tray as the center of a circle, the included angle between the evaporator and level should be 0 or more, that is good for condensing water drainage. Wall 2.Fix the rear panel on the wall with screws. Wall Mark on the middle of it Gradienter Space Space (Where is pre-covered with plastic granula) 3.Be sure that the rear panel has been fixed firmly enough to withstand the weight of an adult of 60kg, further more, the weight should be evenly shared by each screw. to the wall 150mm above to the wall 150mm above Right Left Ф55mm Ф55mm Fig.5 (Rear piping hole) (Rear piping hole) Install the piping hole Indoor 1.Make the piping hole (Ф55) in the wall at a slight downward slant to the outdoor side. Wall pipe 2.Insert the piping-hole sleeve into the hole to prevent the connection piping and wiring from being damaged when passing through the hole. Outdoor Seal pad Ф55 Install the water drainage pipe 1.For well draining, the drain hose should be placed at a downward slant. Wrenched Bent 2.Do not wrench or bend the drain hose or flood its end by water. 3.When the long drainage hose passing through indoor, should wrap the insulation materials. Flooded Connect indoor and outdoor electric wires 1.Open the surface panel. 2.Remove the wiring cover (Fig.6). 3.Route the power connection cord from the back of the indoor unit and pull it toward the front through the wiring hole for connection. 4.Reassemble the clampand wiring cover. 5.Recover the surface panel. Heat pump type Wiring Cover blue yellowgree black brown Connection wire Fig.6 35 Installation Manual NOTE: When connecting the electric wire if the wire length is not enough, please contact with the authorized service shop to buy a exclusive electric wire that is long enough and the joint on the wire are not allowed. ƽThe electric wiring must be correctly connected, wrong connection may cause spare parts malfunction. ƽTighten the terminal screw in order to prevent loose. ƽAfter tighten the screw, slight pull the wire and confirm whether is it firm or not. ƽIf the earth wire is wrong connection, that may cause electric shock. ƽThe cover plate must be fixed, and tighten the connection wire, if it is poor installed, that the dust, moisture may enter in or the connection terminal will be affected by outside force, and will cause fire or electric shock. Install the indoor unit Gas side pipe ƽThe piping can be lead out from right, right rear, left left rear. 1.When routing the piping and wiring from the left or right side of indoor unit, cut off the tailings from the chassis in necessary(Show in Fig.7) Ł Cut off the tailings 1 when routing the wiring only; ł Cut off the tailings 1 and tailings 2 when routing both the wiring and piping. 2. Take out the piping from body case, wrap the piping electric wire, water pipe with tape and pull them through the piping hole (As show in Fig.8) 3. Hange the mounting slots of the indoor unit on the upper tabs of the rear panel and check if it is firm enough.(As show in Fig.9) 4. The height of the installed location should be 2.5m or more from the floor. Tailing 2 Tailing 1 Fig.7 External connection electric wire Liquid side piping Gas side piping insulation Liquid side Piping insulation Finally wrap it Water drainage pipe with tape Left েৢ Left rear Right Right rear Fixing hook Mounting plate Fig.8 Mounting baord Fig.9 Install the connection pipe 1. Align the center of the piping flare with the relevant valve. 2. Screw in the flare nut by hand and then tighten the nut with spanner and torque wrench refer to the following: Hex nut diameter Ф6 Ф 9.52 Ф 12 Ф 16 Ф 19 Tightening torque (N ·m) 15̚20 31̚35 50̚55 60̚65 70̚75 Indoor unit piping Spanner Taper nut Piping Torque wrench NOTE: Firstly connect the connection pipe to indoor unit, then to outdoor unit; pay attention to the piping bending, do not damage the connection pipe; the joint nut couldn't tighten too much, otherwise it may cause leakage. 36 Installation Manual 7.3 Install of Outdoor Unit El ectric wiring 1. Disassemble the handle on the outdoor unit right side plate. 2 .Take off wire clamp. Connect and fix power connect cord to terminal of line bank. Wiring should fit that of indoor unit. 3. Fix the power connection cable and power cord with wire clamp,(for cooling and heating unit, use the wire clamp to fix the power connection cable and the signal control wire), then connect the corresponding connector. 4. Ensure wire has been fixed well. Power G 5. Install the handle. Handle Power cord Power connection wire NOTE: ● Wrong wiring may cause spare parts malfunction. ● After the cable fixed, make sure there should be a free space between the connection and connection and fixing place on the lead wire. 37 Installation Manual Air purging and leakage test 1. Connect charging hose of manifold valve to charge end of low pressure Manifold Valve valve (both high/low pressure valves must be tightly shut). Multimeter Manometer 2. Connect joint of charging hose to vacuum pump. -76cmHg 3. Fully open handle handle of Lo manifold valve. Hi handle Lo Handle 4. Open the vacuum pump to evacuate. At the beginning, slightly loosen joint nut of low pressure valve to check if there is air coming inside. (If noise of vacuum pump has Charging hose been changed, the reading of multimeter is 0) Then tighten the nut. Low pressure valve 5. Keep evacuating for more than 15mins and make sure the reading of multi-meter is -1.0X105 pa Vacuum pump (-76cmHg) . 6. Fully open high/low pressure valves. 7. Remove charging hose from charging end of low pressure valve. 8. Tighten bonnet of low-pressure valve. (As shown in Fig.10) Fig.10 Condensate drainage of outdoor unit (no for cooling only) The condensate and defrosting water formd during heating in the outdoor unit can be properly discharged by drainage pipe . Installation method:set the drain connection in Ф25 hole of the chassis has been installed and then connect drainage pipe with drain nozzle,so that condensate and defrosting waer can be properly discharged 38 Drain connection Chassis Drainage Plug Exploded Views and Parts list 8. Exploded Views and Parts List 8.1 Indoor Unit Models GWC18AC-D3DNA1B/I GWH18AC-D3DNA1B/I 8 9 10 11 12 13 14 15 16 17 18 19 20 7 6 21 22 5 23 24 4 25 3 26 27 2 28 29 1 FA N MODE I FEEL CLOC K 41 40 30 TIMER ON X-FA N TEMP TIMER OFF TURBO SLEEP LIGH T 39 38 37 36 35 34 33 32 31 39 Exploded Views and Parts list Description NO. Part Code GWC18AC-D3DNA1B/I GWH18AC-D3DNA1B/I CB115N0420 CB115N0430 1 2 Display Cover Front Panel Assy 20122042 2001201213 20122042 2001201213 1 1 3 Filter Sub-Assy 11124096 11124096 2 4 Screw Cover 24252017 24252017 3 5 Front Case Assy 20012011 20012011 1 6 Evaporator Support 24212109 24212109 1 7 Evaporator Assy 0100291201 0100291201 1 8 9 Guide Louver Lef Axile Bush 10514096 10542704 10514096 10542704 1 1 10 Rear Grill 01472019 01472019 1 11 Louver Clamp 26112127 26112127 5 12 Air Louver(manual) 10512097 10512097 2 13 Swing lever 10584085 10584085 1 14 Water Tray Assy 2018210510 2018210510 1 15 16 Drainage hose O-Gasket sub-assy of Bearing 0523001406 76512051 0523001406 76512051 1 1 17 Cross Flow Fan 10352016 10352016 1 18 Swing blade (Round hole) 10512099 10512099 8 19 Rear Case assy 22202139 22202139 1 20 Wall Mounting Frame 01252218 01252218 1 21 Pipe Clamp 26114095 26114095 1 22 23 Axile Bush Rubber Plug (Water Tray) 10542008 76712012 10542008 76712012 2 1 24 Fan Motor 15012718 15012718 1 25 Motor Press Plate 26114094 26114094 1 26 Capacitor CBB61 33010002 33010002 1 27 Step Motor 15012086 15012086 1 28 Crank 10582070 10582070 1 29 30 Display Board Tube Sensor 30565002 390000591 30565002 390000591 1 1 31 Ambient Temperature Sensor 390000451 390000451 1 32 Electric Box 2011210001 2011210001 1 33 Electric Box Assy 2020219602 20202196 1 34 Main Board 30138178 30138177 1 35 Jumper 4202300112 4202300112 1 36 37 Terminal Board Display Box 42011233 20122041 42011233 20122041 1 1 38 Electric Box Cover1 2011400801 2011400801 1 39 Shield cover of Electric Box 01412010 01412010 1 40 Remote Controller 305100501 305100501 1 41 Electric Box Cover2 2011400904P 2011400904P 1 The above data are subject to change without notice. 40 Qty Product Code Exploded Views and Parts list Models GWC24AC-D3DNA1B/I GWH24AC-D3DNA1B/I 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 11 10 9 8 7 6 28 29 5 30 4 3 31 2 32 33 1 FA N 34 MODE I FEEL CLOC K TIMER ON X-FA N TEMP TIMER OFF TURBO SLEEP LIGH T 35 36 43 42 41 40 39 38 37 41 Exploded Views and Parts list Des cription NO. Part Code GWC24AC-D3DNA1B/I GWH24AC-D3DNA1B/I Product Code 1 Front Panel As s y 2 Screw Cover 3 Filter Sub-As s y 4 Front Cas e As s y 5 Evaporator Support CB115N0440 CB115N0450 2001207105 2001207105 1 24252017 24252017 4 11124097 11124097 2 2001207001 2001207001 1 24214081 24214082 1 1 6 Evaporator As s y 01002567 01002567 7 Left Axile Bus h 10542704 10542704 1 8 Guide Louver 10512153 10512153 10542008 01472020 1 9 Axile Bus h 10542008 10 11 Rear Grill Louver Clam p 01472020 26112158 26112158 2 6 12 Bearing Holder s ub-as s y 26152028 26152028 1 2 13 Swing lever 10584086 10584086 2 14 O-Gas ket s ub-as s y of Bearing 76512051 76512051 1 15 Cros s Flow Fan 1 10354002 10354002 1 10 10512099 10512099 0523001403 0523001403 1 Rear Cas e as s y 22202096 22202096 1 19 Cros s Flow Fan 2 10354003 10354003 1 16 Swing blade (Round hole) 17 Drainage hos e 18 20 Rubber Plug (Water Tray) 76712012 76712012 1 21 Wall Mounting Fram e 01252229 01252229 1 22 Water Tray As s y 2018211106 2018211106 26112156 1 23 Pipe Clam p 26112156 24 25 Crank Step Motor 10582070 1521300101 1521300101 1 1 26 Fan Motor 1501209801 1501209801 1 27 Motor Pres s Plate 26112182 26112182 1 28 Air Louver(m anual) 10512097 10512097 2 29 Electric Box As s y 2020219603 2020219601 1 10582070 1 30 Am bient Tem perature Sens or 390000451 390000451 1 31 Tube Sens or 390000591 390000591 1 32 Electric Box 2011210001 2011210001 1 1 33 Main Board 30138182 30138181 34 Term inal Board 42011233 42011233 1 35 Jum per 4202300113 4202300113 1 1 1 36 Dis play Board 30565002 30565002 37 Dis play Box 20122041 38 39 Electric Box Cover1 Shield cover of Electric Box 20122041 2011400801 2011400801 01412010 01412010 1 1 40 Rem ote Controller 305100501 305100501 1 41 Electric Box Cover2 2011400904P 2011400904P 1 42 Dis play Cover 20122042 20122042 1 24212094 24212094 1 43 s tay bar s ub-as s y The above data are subject to change without notice. 42 Qty Exploded Views and Parts list Model GWH18AC-D3DNA2B/I 7 8 9 10 11 12 13 14 15 16 17 18 19 6 5 4 20 21 22 3 23 2 24 25 26 1 27 28 FA N MODE 29 I F EEL C LOC K TIMER ON X- FA N T EMP T URBO 40 39 TIMER OFF LIGH T SLEEP 38 37 36 35 34 33 32 31 30 43 Exploded Views and Parts list Description NO. GWH18AC-D3DNA2B/I Qty Product Code CB115N0470 1 Front Panel Assy 2001209804 1 2 Filter Sub-Assy 11124096 2 3 Screw Cover 24252017 3 4 Front Case Assy 20012011 1 5 Evaporator Support 24212109 1 6 Evaporator Assy 0100258401 1 7 Guide Louver 1051409605P 1 8 Axile Bush 10542008 2 9 Rear Grill '01472019 1 10 Louver Clamp 26112127 5 11 Air Louver(manual) 10512097 2 12 Swing lever 10584085 1 13 Water Tray Assy 2018210510 1 14 Drainage hose 0523001406 1 15 O-Gasket sub-assy of Bearing 76512051 1 16 Cross Flow Fan 10352016 1 17 Swing blade (Round hole) 10512099 8 18 Rear Case assy 22202139 1 19 Wall Mounting Frame 01252218 1 20 Pipe Clamp 26114095 1 21 Axile Bush 10542704 1 22 Rubber Plug (Water Tray) 76712012 1 23 Fan Motor 15012718 1 24 Motor Press Plate 26114094 1 25 Capacitor CBB61 33010002 1 26 Step Motor 15012086 1 27 Crank 10582070 1 28 Display Board 30545053 1 29 Tube Sensor 390000591 1 30 Ambient Temperature Sensor 390000451 1 31 Electric Box 2011210001 1 32 Electric Box Assy 2020219604 1 33 Main Board 30138177 1 34 Jumper 4202300112 1 35 Terminal Board 42011233 1 36 Display Cover 2 20122058 1 37 Electric Box Cover1 38 Shield cover of Electric Box 39 40 2011400801 1 01412010 1 Remote Controller 30510050 1 Electric Box Cover2 2011400904P 1 The above data are subject to change without notice. 44 Part Code Exploded Views and Parts list Model GWH24AC-D3DNA2B/I 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 11 10 9 8 7 6 28 5 29 30 4 3 31 2 32 33 1 FA N 34 MODE I FEEL CLOC K TIMER ON X-FA N TEMP TIMER OFF TURBO SLEEP LIGH T 41 40 39 38 35 36 37 45 Exploded Views and Parts list Description NO. GWH24AC-D3DNA2B/I Qty Product Code CB115N0490 1 Front Panel Assy 2001214801 1 2 Screw Cover 24252017 4 3 Filter Sub-Assy 4 Front Case Assy 5 11124097 2 2001207001 1 Evaporator Support sub-assy 24214082 1 6 Evaporator Assy 01002567 1 7 Axile Bush 10542704 1 8 Guide Louver 1051215304P 1 9 Axile Bush 10542008 2 10 Rear Grill 01472021 2 11 Louver Clamp 26112158 6 12 Bearing Holder sub-assy 26152028 1 13 O-Gasket sub-assy of Bearing 76512051 1 14 Swing lever 10584086 2 15 Cross Flow Fan 1 10354002 1 16 Swing blade (Round hole) 10512099 10 17 Drainage hose 18 Rear Case assy 19 Cross Flow Fan 2 10354003 1 20 Rubber Plug (Water Tray) 76712012 1 21 Wall Mounting Frame 22 Water Tray Assy 23 Pipe Clamp 0523001403 1 22202096 1 01252229 1 2018211106 1 26112156 1 24 Crank 10582070 1 25 Step Motor 1521300101 1 26 Fan Motor 1501209801 1 27 Motor Press Plate 26112182 1 28 Air Louver(manual) 10512097 2 29 Electric Box Assy 2020219605 1 30 Ambient Temperature Sensor 390000451 1 31 Tube Sensor 390000591 1 32 Electric Box 2011210001 1 33 Main Board 30138181 1 34 Terminal Board 42011233 1 35 Jumper 4202300113 1 36 Display Board 30545053 1 37 Display Cover 2 38 Electric Box Cover1 39 Shield cover of Electric Box 40 41 20122058 1 2011400801 1 01412010 1 Remote Controller 30510050 1 Electric Box Cover2 2011400904P 1 The above data are subject to change without notice. 46 Part Code Exploded Views and Parts list 8.2 Outdoor Unit Model GWC18AC-D3DNA1B/O 10 9 11 12 13 14 15 16 17 18 19 20 8 7 6 5 4 3 2 21 22 1 23 24 25 36 35 34 33 32 31 30 29 28 27 26 47 Exploded Views and Parts list Des cription NO. Product Code Qty CB115W0420 1 Rear Grill 01473043 1 2 Fan Motor 15015064 1 3 Electric box (fireproofing) 01413148 1 4 Term inal Board 42010255 1 5 Electric Box 20113008 1 6 Radiator 49013024 1 7 Main Board 30138166 8 Electric Box Cover Sub-As s y 02603217 1 9 Electric Box Ass y 10 left handle 11 Left Side Plate 12 Motor Support Sub-As sy 01705020 1 13 Supporting board(condenser) 01795010 1 14 Top Cover 01255005P 1 15 Reactor 43130021 1 16 Clapboard Sub-Ass y 17 Condenser As s y 18 Front Grill 01473049 1 19 Wiring clam p 26115004 1 20 Temperature Sens or 3900030901 1 21 Capacitor CBB65 33000065 1 0260306604 1 26235401 1 01305041P 1 01232902 1 0111338601 1 22 Capacitor Clam p s ub-as sy 01413098 1 23 Electric expand valve fitting 4300876704 1 24 handle As s y 02113109 1 25 Cut-off Valve 07130239 1 26 Valve cover 22245002 1 27 Cut-off valve Sub-Ass y 28 Valve s upport as s y 07133060 1 01715010P 1 29 Right Side Plate 0130505303P 1 30 Electronic Expans ion Valve 07133183 1 31 Inhalation Tube Sub-As s y 03733084 1 32 Dis charge Tube Sub-As sy 03733083 1 33 Com pres sor and fittings 34 Chass is Sub-as sy 35 Axial Flow Fan 36 Cabinet The above data are subject to change without notice. 48 Part Code GWC18AC-D3DNA1B/O 00103501 1 0120371401P 1 10335008 1 01433047P 1 Exploded Views and Parts list Model GWH18AC-D3DNA1B/O 9 10 11 12 13 14 15 16 17 18 19 20 8 7 6 5 4 3 21 22 2 23 1 24 25 38 37 36 35 34 33 32 31 30 29 28 27 26 49 Exploded Views and Parts list Des cription NO. Product Code Qty CB115W0430 1 Rear Grill 01473043 1 2 Fan Motor 15015064 1 3 Electric box (fireproofing) 01413148 1 4 Term inal Board 42010255 1 5 Electric Box 20113008 1 6 Radiator 49013024 1 7 Main Board 30138167 1 8 Electric Box Cover Sub-As s y 02603217 1 0260306605 1 26235401 1 9 Electric Box Ass y 10 left handle 11 Left Side Plate 01305041P 1 12 Motor Support Sub-As sy 01705020 1 13 Supporting board(condenser) 01795010 1 14 Top Cover 01255005P 1 15 Reactor 43130021 1 16 Clapboard Sub-Ass y 01232902 1 17 Condenser As s y 01113386 1 18 Front Grill 01473049 1 19 Wiring clam p 26115004 1 20 Temperature Sens or 3900030901 1 21 Capacitor CBB65 33000065 1 22 Capacitor Clam p s ub-as sy 01413098 1 23 Electric expand valve fitting 4300876704 1 24 Handle as s y 02113109 1 25 Cut-off valve Sub-Ass y 07133058 1 26 Valve cover 22245002 1 27 Cut-off valve Sub-Ass y 07133060 1 28 Valve s upport as s y 29 Right Side Plate 30 Electronic Expans ion Valve 31 4-way Valve As sy 32 Magnet Coil 33 Com pres sor and fittings 34 Chass is Sub-as sy 01715010P 1 0130505303P 1 07133556 1 03123245 1 4300040045 1 00103501 1 0120371401P 1 35 Drainage Connecter 06123401 1 36 Drainage Plug 06813401 3 37 Axial Flow Fan 10335008 1 38 Cabinet 01433047P 1 The above data are subject to change without notice. 50 Part Code GWH18AC-D3DNA1B/O Exploded Views and Parts list Model GWC24AC-D3DNA1B/O 8 9 10 11 12 13 14 15 16 17 18 19 7 6 5 4 3 20 2 21 1 22 23 24 37 36 35 34 33 32 31 30 29 28 27 26 25 51 Exploded Views and Parts list Des cription NO. Product Code Qty CB115W0440 1 Rear Grill 01475013 1 2 Fan Motor 15014034 1 3 Electric box (fireproofing) 01413426 1 4 Electric Box 20113008 1 5 Radiator 49010252 1 6 Main Board 30138168 1 7 Electric Box Cover Sub-As s y 8 Electric Box Ass y 02603217 1 0260306610 1 9 Term inal Board Support Sub-As s y 01715016 1 10 Term inal Board 42010255 1 11 left handle 26235401 2 12 Left Side Plate 01305043P 1 13 Top Cover 01255006P 1 14 Motor Support Sub-As sy 01705025 1 15 Clapboard Sub-Ass y 01233110 1 16 Condenser As s y 01113487 1 17 Front Grill 01473050 1 18 Wiring clam p 19 Temperature Sens or 20 21 26115004 1 3900030901 1 Reactor 43130021 1 Capacitor CBB65 33000039 1 22 Right Side Plate 0130504402P 1 23 Handle as s y 02113109 1 24 Cut-off valve Sub-Ass y 07133603 1 25 Valve cover 22245003 1 26 Valve Support Sub-Ass y 0171501201P 1 27 Baffle (valve s upport) 01365435P 1 28 Cut-off Valve 07130239 1 29 Electronic Expans ion Valve 07133182 1 30 Electric expand valve fitting 4300876704 1 31 Dis charge Tube Sub-As sy 03733092 1 32 Inhalation Tube Sub-As s y 03733093 1 33 Com pres sor and fittings 34 Chass is Sub-as sy 35 Axial Flow Fan 36 Front Side Plate 37 Cabinet The above data are subject to change without notice. 52 Part Code GWC24AC-D3DNA1B/O 00103501 1 01203779P 1 10335005 1 01305072P 1 0143500401P 1 Exploded Views and Parts list Model GWH24AC-D3DNA1B/O 8 9 10 11 12 13 14 15 16 17 18 19 7 6 5 4 3 2 1 20 21 22 23 24 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 53 Exploded Views and Parts list Des cription NO. Product Code Qty CB115W0450 1 Rear Grill 01475013 1 2 Fan Motor 15014034 1 3 Electric box (fireproofing) 01413426 1 4 Electric Box 20113008 1 5 Radiator 49013024 1 6 Main Board 30138169 1 7 Electric Box Cover Sub-As s y 8 Electric Box Ass y 02603217 1 0260306611 1 9 Term inal Board Support Sub-As sy 01715016 1 10 Term inal Board 42010255 1 11 left handle 26235401 2 12 Left Side Plate 01305043P 1 13 Top Cover 01255006P 1 14 Motor Support Sub-As sy 01705025 1 15 Clapboard Sub-Ass y 01233110 1 16 Condenser As s y 01113446 1 17 Front Grill 01473050 1 18 Wiring clam p 19 Temperature Sens or 20 21 26115004 1 3900030901 1 Reactor 43130021 1 Capacitor CBB65 33000039 1 22 Right Side Plate 0130504402P 1 23 Handle As sy 02113109 1 24 Cut-off valve Sub-Ass y 07133603 1 25 Valve cover 22245003 1 26 Valve Support Sub-Ass y 0171501201P 1 27 Baffle (valve s upport) 01365435P 1 28 Cut-off Valve 07130239 1 29 Electronic Expans ion Valve 07133174 1 30 Electric expand valve fitting 4300876704 1 31 4-way Valve As sy 03123275 1 32 Magnet Coil 4300040045 1 33 Com pres sor and fittings 00103501 1 34 Drainage Connecter 06123401 1 35 Chass is Sub-as sy 01203779P 1 36 Drainage Plug 06813401 2 37 Axial Flow Fan 38 Front Side Plate 39 Cabinet The above data are subject to change without notice. 54 Part Code GWH24AC-D3DNA1B/O 10335005 1 01305072P 1 0143500401P 1 Troubleshooting 9. Troubleshooting Note: When replacing the controller, make sure insert the wire jumper into the new controller, otherwise the unit display C5 The breaker trips at once when it Measure insulation resistance to ground to see if there is any leakage. is set to "ON". Trip of breaker or blow of fuse The circuit or the part of the air conditioner has malfunction. They heat and break the insulation and lead to short circuit or creepage. Measure The breaker trips in few minutes when it is set to "ON" the insulation resistance or eliminate the malfunction one by one. If the breaker itself has malfunction, then replace the breaker. Air conditioner can not start up No power Check power supply circuit. Power plug is not well plugged in and poor connection Check if the plug is properly plugged in and make the loose contact firm. The air conditioner does not react after it is powered ( after Fuse of controller burnt out Change controller fuse The transformer connection is loose or has bad contact or the transformer has malfunction Fasten the wiring; measure the output voltage of the transformer, if it is incorrect, change the transformer the plug is inserted, the buzzer does not sound and the remote startup has no response) Controller is broken Check remote controller Remote controller is short of power Change batteries The remote controller does not receive signals (after it is Remote controller malfunction powered, the buzzer will sound, unless it Receiver loose or poor connection has malfunction) Receiver is broken First, press the manual switch button AUTO, if there is no response,check based on the above methods. If it runs normally after pressing the button,check again whether the installation position and the connection wire of the reception head is correct. If it is correct,then replace the receiver or the remote controller. Power voltage is too low Check the voltage. If it is lower than 10% of the rated voltage, check the cause, improve the power supply condition and add the stabilized voltage power supply. 55 Troubleshooting Improper set of temperature Adjust set temperature If cooling (heating) load is proper Check the forecasted load of cooling (heating) The refrigerant has leakage or is insufficient Malfunction of refrigerant flow Leakage between the high pressure and the low pressure inside the compressor Malfunction of four-way valve Poor COOL(HEAT) operation Local block of capillary Blockage of cooling system Heat insulation for the connection pipes of the indoor unit and the outdoor unit is bad. Check and fill the leakage, then vacuumize it and supplement the refrigerant as required Replace the compressor Replace the four-way valve Replace the capillary Judge whether the system is blocked by observing the condensation of evaporator and the pressure value of the high pressure manometer and take measures to deal with the system. Make sure that heat insulation for the thick and thin pipes is good. Heat insulation must also be provided for the joint andthe exposed part of the copper pipe . Block of outdoor heat exchanger Clean the dust accumulated on the surface of the heat exchanger. Air filter were blocked Clean the filter To set the fan speed to high or Fan speed was set too slow Air circulation is insufficient Fan rotation speed becomes low The installation position of the outdoor unit is not appropriate. The outdoor temperature is too high. The air tightness is not enough. People come in and out too frequently. There are heating devices indoors. 56 middle speed Capacitor damage Replace the capacitor Motor damage Replace the motor Good ventilation must be provided for the installation position of the outdoor unit. Properly install the rainproof plate or the sunproof plate. If the maximum cool air still can not meet the requirement, it is suggested to replace the air conditioner. Keep certain air tightness indoors, try not to use electricalappliance with large quantity of heat Troubleshooting The indoor fan motor is burned or breaks or has the heat protector malfunction. The fan does not run when it is set to supply air. In the cooling and heating mode, the compressor runs, but the outdoor fan does not run. The built-in heat protector of the motor breaks frequently because the motor is abnormal. Replace the fan motor Wrong connection Make the correction connection based on the circuit drawing. The fan capacitor has open circuit or is damaged. Replace the fan capacitor of the same type and same specification. The outdoor fan motor is damaged. Replace the fan motor Wrong connection Make the correct connection based on the circuit drawing. The outdoor fan capacitor is damaged. Replace the fan capacitor Malfunction of compressor When cooling or heating, outdoor fanruns,compressor doesn't run. The compressor is too hot and leads to the action of the protector. Replace the fan motor or the defective part. Replace the compressor Breakage of running capacitor of compressor Replace the capacitor The voltage is too low or too high. Manostat is recommended. Wrong wire connection Connect the circuit diagram correctly The protector itself has malfunction. Use the multimeter to check whether the contact of the compressor is on when it is not overheated. If it is not on, then replace the protector The refrigerant is not enough or is too much. Adjust the volume of the refrigerant The capillary is blocked and the temperature rises. Replace the capillary The compressor does not run smoothly or is stuck. The air discharge valve is damaged Replace the compressor The protector itself has malfunction. Replace the protector The torque of the swing motor is not enough The swing fan does not run. wrong connection First, check whether the connection is wrong. If no,replace the parts The controller is damaged IC2003 is damaged, the swing relay can not close, etc 57 Troubleshooting In cool, heat mode, the outdoor unit and compressor will not run. Controller malfunction (IC2003 broken,creepage of parallel capacitor of relay loop,relay is broken etc.) Change controller Wire loose or wrong connection Correctly wire according to the drawing Improper setting of temperature Adjust setting temp. Drainage pipe blocked or broken Change drainage pipe Wrap of refrigerant pipe joint is not close enough. Re-wrap and make it tight. Fan of indoor unit contacts other parts. Adjust fan location. Foreign object in indoor unit Take out the foreign object. Compressor shakes too much. Adjust support washer of compressor, and tighten loosen screws. Touch of pipeline of outdoor unit Separate the touching pipeline. Touch of inner plates 1. Tighten connect screw. 2. Stick absorbing clay between plates. Louver of outdoor unit touched outer case. Adjust location of louver. Abnormal sound inside compressor Chan ge compressor Water leakage Abnormal sound and shake 58 Troubleshooting Appearance of Controller of Indoor Unit Note: When replacing the controller, make sure insert the wire jumper into the new controller, otherwise the unit display C5. The PCB above is subject to change without notice. 59 Troubleshooting • The key testing spots(BOTTOM) Test Point No. Test 1 Test 2 Test 3 Test 4 Test Point between two points between two points between two points between two points Relevant Component weak-current power weak-current power Test result under normal conditions N/L line 230VAC ±10% N/L line 230VAC ±11% The PCB above is subject to change without notice. 60 5V 12V Troubleshooting Key Test Point (Bottom) Test4 Test9 Test2 Test3 C Test F G L D H B A E J I K Test5 Test7 Test6 Tset8 Test10 Test11 GND M N S Q R Test14 Test15 O P Test12 Test13 T Test16 61 Troubleshooting Test Serial Test spot No. Test1 Between A and C Test2 Between B and C Test3 Between D and E Test4 Between F and G Test5 Diode D10 terminal Test6 Capacitor C56 terminal Test7 Capacitor C58 terminal Test8 Capacitor C83 terminal Test9 Capacitor C80 terminal Test10 Between M and Ground of the PCB Test11 Between N and Ground of the PCB Test12 O Test13 P Test14 Q Test15 R Test16 62 Corresponding components Power Supply L N Power Supply L N Test value under circumstances 160V~265V 160V~265V normal Electrolytic Capacitor for DC-Bus 180VDC~380VDC Electrolytic Capacitor for SMPS 180VDC~380VDC Diode D10 Capacitor C56 14.5V~15.6VDC 12V~13VDC C58 5VDC C83 3.3VDC C80 15~18VDC - Vibrate Between 0 and 3.3V - Vibrate Between 0 and 3.3V Data Receive Data Transmit Data Transmit Data Receive Power for Communication Circuit Vibrate Between 0.3~1.7V Vibrate Between 0~1.1V Vibrate Between 0~1.1V Vibrate Between 0~24V 56VDC Troubleshooting Appearance of Controller of Outdoor Unit (Top) Appearance of Controller of Outdoor Unit (Bottom) 63 Troubleshooting Malfunctions Normally,diagnose troubles according to the trouble diagnosis procedure as described below.(Refer to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.) No. Troubleshooting procedure 1 Confirmation 2 Judgement by Flashing LED of Indoor/Outdoor Unit 3 How to Check simply the main part NOTE: A large-capacity electrolytic capacitor is used in the outdoor unit controller(inverter).Therefore,if the power supply is turned off,charge(charging voltage DC280V to 380V)remains and disc harging takes a lot of time.. After turning off the power source,if touching the charging section before discharging, an electrical shock may be caused. Discharge the electrol ytic capacitor completely by using soldering iron,etc. <Discharging method> (1) remove the inverter cover(Outdoor Unit) Inverter cover P.C.board (Soldered surface) (2) As shown below,connect the discharge resistance(approx.100Ω20W)or plug of the sold ering iron to voltage between + - terminals of the electrolytic capacitor (test3 “D ” and “E” point) on PC Board for 30s, and then peformedischarging. 64 Troubleshooting 1.Confirmation 1 Confirmation of Power Supply Confirm that the power breaker operates(ON) normally; (2)Confirmation of Power Voltage Confirm that power voltage is AC 220–230–240 ±10%. If power voltage is not in this range, the unit may not operate normally. 2.Flashing LED of Indoor/Outdoor Unit and Primary Judgement Indoor unit displaying method Name of NO. malfunction Double 8 code display Indicator display(LED blinks 0.5s-ON/0.5s -OFF) 2 3 System high pressure protection Anti-freezing protection Compressor air exhaust high temp. protection □ OFF ■ ON AC status Malfunctions Blinks Running LED 1 Outdoor unit display (LEDs have 3 status) Cooling LED Heating LED D40 D41 D42 D43 /D5 /D6 /D16 /D30 3s off blink once cooling,dehumidifying, except the indoor fam motor is runnig,others will stop to run.heating;all stop running High pressure of system,might be: 1.Refrigerant is too much; 2.Poor heating exchanging for units (including heat exchanger is dirty and unit heating radiating ambient is poor); 3.Ambient temp.is too high. E2 3s off blink twice cooling,dehumidifying, compressor,outdoor fan motor will stop running, indoor fan motor will keep running. 1.Poor indoor unit air returning; 2.Indoor fan motor rotating speed abnormal; 3.Evaporator is dirty; E4 3s off blink four times E1 cooling,dehumidifying, compressor,outdoor fan motor will stop running, indoor fan motor works. heating:all stop running. Pls refer to rtouble shoot (air exhaust protection,overload) 65 Troubleshooting 66 Cooling,dehumidifying,compr 1.power supply is essor,outdoor fan motor will stable,fluctuation is too much stop,indoor fan will 2.Power supply is too work.heating;all will stop low,overload is too much. 4 AC overload protection Off 3s blink 5 times E5 5 Indoor and outdoor units communication malfunction E6 Off 3s blink 6 times Cooling,compressor will stop,indoor fan motor works,Heating:all will stop Please refer to troubleshooting 6 Anti-high temp.protection E8 Off 3s blink 8 times Cooling,compressor will stop,indoor fan motor works,Heating:all will stop Please refer to troubleshooting 7 Indoor unit motor no feedback H6 Off 3s blink 11 times Whole unit will stop to run 1.Poor insert for GPF 2.Indoor control board AP1 malfunction 3.Indoor motor M1 malfunction 8 Jump wire cap malfunction protection C5 Off 3s blink 15 times Whole unit will stop to run Indoor control board AP1 jump cap poor connected,please reinsert or replace the jump cap. 9 Indoor ambient sensor open circuit,short circuit F1 Off 3s blink once Cooling,dehumidifying:indoor fan motor is runing,other overloads will stop;Heating,whole unit will stop to run. 1.Room temp.sensor is not connected with the control panel AP1 2.Room temp.sensor is damaged 10 Indoor evaporator sensor ciruit open,short circuit F2 Off 3s blink twice Cooling,dehumidifying;indoor fan motor runing,other overload will stop;Heating,whole unit will stop. 1,Tube temp.sensor is not connected with the conrtol panel AP1 2.Tube tmep.sensor is damaged 11 Outdoor ambient sensor circuit open,circuit short F3 Off 3s blinks three times Outdoorroom temp.sensor Cooling,dehumidifying;compr hasn't connected well,or essor will stop,indoor fan damaged,please refer to the motor will work.Heat:all will sensor resistance value for stop checking. 12 Outdoor condemsor sensor open circuit,short circuit F4 Off 3s blinks 4 times Outdoorroom temp.sensor Cooling,dehumidifying;compr hasn't connected well,or essor will stop,indoor fan damaged,please refer to the motor will work.Heat:all will sensor resistance value for stop checking. 1.Exhaust temp sensor hasn't connected well,or damaged,plwease refer to the sensor resistance value for checking. 2.Sensor head hasn't insert into the copper tube. 13 Outdoor air exhaust sensor open circuit,short circuit F5 Off 3s blinks 5 times Cooling,dehumidifying;after runing for 3mins later,the compressor will stop to run,indoor fan motor will start to run.heating:after run 3 mins later,all will stop to run. 14 Overload limit/descending frequency F6 Off 3s blinks 6 times Overload mormal Please refer to operation,compressor is troubleshooting runing,frequency descending 15 Over current need frequency descending F8 Off 3s blinks 8 times 1.Input power supply is too Overload mormal low operation,compressor is 2.System voltage is too runing,frequency descending high,over is too much 16 Air exhaust over high need frequency descending F9 Off 3s blinks 9 times 1.Overload is too much,ambient temp.is too Overload mormal high operation,compressor is 2.Refrigerant is short runing,frequency descending 3.Electric expansion malfunction 17 DC generatrix voltage PH Off 3s Cooling,dehumidifying,compr 1.Testing wire terminal L and essor stop running N position Troubleshooting i s too hi gh Bl i nk 11 times If higher than 265VAC, please cut off the power supply and restart until back to normal Fan motor works. Heating: all will stop Whole unit’s 18 current testing malfunction U5 Compressor 19 current overcurrent protection P5 20 Defrosting H1 21 Electrostatic dedust protection H2 Off 3s blink 13 times □ Off 3s blink 15 times □ ■ ■ □ □ Off 3s blink once 2. If input voltage is normal, testing the voltage of electrolytic capacitor on AP1 after turn on the unit. There may be some problem and replace the AP1 if the electrolytic capacitor voltage range at 200-280V Cooling, dehumidifying; compressor stops running, indoor fan motor works. Heating: all will stop running Cooling, dehumidifying; compressor stops running, indoor fan motor works. Heating: all will stop running Please refer to troubleshooting (IPM protection, compressor lose steps, compressor current overcurrent protection) Under the heating mode, It is normal compressor running, indoor function The circuit on AP1 has malfunction, replace the outdoor unit AP1 /outdoorfan motor stop working Off 3s blink twice 1. Wire terminal OVCCOMP loosen or circuit, Compressor 22 overload protection H3 Off 3s blink 3 times □ □ Cooling, dehumidifying; compressor stops running, indoor fan motor works. Heating: all will stop running has problem, the resistance of SAT should be lower than 1 ohm. 2.Please refer to troubleshooting (exhaust/overload protection) System 23 abnormal H4 Off 3s blink 4 times 24 IPM protection H5 Off 3s blink 5 times ■ □ 25 PFC protection HC Off 3s blink 6 times □ ■ Compressor lose steps H7 Off 3s blink 7 times □ 27 Heating, anti-high temp. declines H0 Off 3s blink 10 ■ times 28 Startsup fail Lc Off 3s blink 11 times □ □ U1 Off 3s blink 13 times □ ■ EEPROM 30 malfunction EE Off 3s blink 15 □ times □ □ ■ Capacitor 31 charge malfunction PU Off 3s blink 17 times □ ■ □ ■ P7 Off 3s blink 18 times □ □ ■ P8 Off 3s blink 19 times 26 Compressor current 29 testing circuit malfunction 32 Module sensor circuit diagram Module temp. 33 over high protection ■ ■ ■ ■ Overload normal works, compressor running, frequency declines Cooling, dehumidifying; compressor stops running, indoor fan motor works. Heating: all will stop running □ □ Cooling, dehumidifying; compressor stops running, indoor fan motor works. Heating: all will stop running Cooling, dehumidifying; compressor stops running, indoor fan motor works. Heating: all will stop running Cooling, dehumidifying; compressor stops running, indoor fan motor works. Heating: all will stop running Cooling, dehumidifying; compressor stops running, indoor fan motor works. Heating: all will stop running □ ■ Pls refer to troubleshooting Pls refer to troubleshooting Pls refer to troubleshooting Pls refer to troubleshooting Pls refer to troubleshooting Pls refer to troubleshooting Replace the outdoor control board AP1 Cooling, dehumidifying; compressor stops running, indoor fan motor works. Heating: all will stop running Cooling, dehumidifying; compressor stops running, indoor fan motor works. Heating: all will stop running Cooling, dehumidifying; compressor stops running, indoor fan motor works. Heating: all will stop running Cooling, dehumidifying; compressor stops running, indoor fan motor works. Heating: all will stop running Replace the outdoor control board AP1 Pls refer to Part 3 capacitor charging fault of troubleshooting Replace the outdoor control board AP1 To check whether the ambient Temp. of IPM is too high or the heat-sinhing of IPM is dirty else replace the outdoor baord AP1 67 Troubleshooting 34 DC Bus voltage dips 35 Low DC Bus voltage protection 36 IPM temp.is too high limit/decrease frequency 37 Four-way valve abnormal Outdoor unit 38 zero-cross U3 PL EU Off 3s blink 20 times Off 3s blink 21 times □ □ ■ ■ ■ ■ ■ ■ ■ □ ■ Anti-freezing 68 Fan module protection Cooling,dehumidifying; compressor will stop,indoor fan motor works.Heating:all will stop. 1.Check the Input voltage if the Voltage is lower than 150VAC,restart the machine when the power supply is mormal. 2.Checking the reactor L connection. Over load normal works, compressor runing frequency declines Whole unit break for 20 mins and discharge,to check the outdoor control board AP1’s IPM module coolant whether is short,the radiator is tightened.If above phenomenon is not OK,Please improve or replace the control board AP1 1.Power supply voltage is lower than AC175V 2.Wire terminal 4V loosen or wire break 3.4V damaged,replace 4V U7 ■ □ □ U9 ■ ■ □ Cooling:compressor will stop,indoor fan motor works. Heating:all will stop. Replace the outdoor control board AP1 FH ■ ■ □ All loads work normally but the running frequency limited or decrease Indoor unit air return is poor or fan speed is to low. □ Cooling:outdoor fan motor, compressor stop running; indoor fan works. Heating:outdoor fan motor, compressor,indoor fan motor stop running. 1.The wire terminal of outdoor fan motor is loosed,fix the terminal. 2.Motor damaged,replace the motor 3.Fan motor module on mainboard is damaged;replace the mainboard AP1 ■ frequency 40 Power voltage is not stable This malfunction happened, only in heating mode,all will stop to run. detecting error 39 lImit/decrease Cooling,dehumidifying compressor will stop,indoor fan motor works.Heating:all will stop L3 ■ □ □ Troubleshooting (1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel) Main Check Points: Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC. If the reactor (L) is correctly connected? If the connection is loose or fallen? If the reactor (L) is damaged? Fault diagnosis process: Turn on the unit and wait 1 minute Use DC voltmeter to measure the voltage on the two ends of electrolytic capacitor (test3) Voltage higher than 200V? Y Fault with the voltage testing circuit on control panel AP1 Replace the control panel AP1 N Measure the AC voltage between terminal L and N on wiring board XT(power supply) Voltage within 210VAC~250VAC? N Shut down the power and repair the power supply to restore the range 210VAC~250VAC power on and restart the unit If the fault is eliminated? Y Y Shut down the power and wait 20 minutes; or use DC voltmeter to measure the voltage on the two ends of capacitor (test3), until the voltage is lower than 20V N Check the connection of reactor (L in the Electrical Wiring Diagram) If the wiring of reactor L is normal? N Connect the reactor L according to Electrical Wiring Diagram correctly Re-energize and turn on the unit If the fault is eliminated? Y Y Replace the control panel AP1 N End 69 Troubleshooting (2) IPM Protection, Out-of-step Fault, Compressor Phase Overcurrent (AP1 below refers to the outdoor control panel) Main check points: If the connection between control panel AP1 and compressor COMP is secure? If loose? If the connection is in correct order? If the voltage input of the machine is within normal range? (Use AC voltmeter to measure the voltage between terminal L and N on the wiring board XT) If the compressor coil resistance is normal? If the insulation of compressor coil against the copper tube is in good condition? If the working load of the machine are too high? If the radiation is good? If the charge volume of refrigerant is correct? Fault diagnosis process: 70 Troubleshooting Energize and switch on IPM protection occurs after the machine has run for a period of time? Y Use AC voltmeter to measure the voltage between terminal L and N on the wiring board XT) If the voltage between terminal L and N on wiring board XT is within 210VAC~250VAC? N Check the supply voltage and restore it to 210VAC~250VAC Y Restart the unit. Before protection occurs, use DC voltmeter to measure the voltage between the two ends of electrolytic capacitor on control panel AP1 (test3) Voltage between the two ends of electrolytic capacitor (test3) is higher than 250V Y Please confirm: 1. If the indoor and outdoor heat exchangers are dirty? If they are obstructed by other objects which affect the heat exchange of indoor and outdoor unit. 2. If the indoor and outdoor fans are working normally? 3. If the environment temperature is too high, resulting in that the system pressure is too high and exceeds the permissible range? 4. If the charge volume of refrigerant is too much, resulting in that the system pressure is too high? 5. Other conditions resulting in that the system pressure becomes too high. The connection of capacitor C2 is loose. Y Reconnect the capacitor C2 according to Electrical Wiring Diagram. Then, Restart the unit. Y N Remove the wires on the two ends of capacitor C2. Then, use capacitance meter to measure the capacitor C2. Verify as per the Parameters Sheet. Stop the unit and disconnect the power supply. Wait 20 minutes, or use DC voltmeter to measure the voltage between the two ends of capacitor C2, until the voltage is lower than 20V If capacitor C2 is failed? Replace the capacitor C2. Then, energize and start the unit. Y Replace the control panel AP1 N If there is any abnormality described above? Y Y Take corrective actions according to Technical Service Manual, and then energize and start the unit. Connect the control panel AP1 and compressor COMP correctly according to the Electrical Wiring Diagram. Then, energize and start the unit. If the resistance is normal? N N If the unit can work normally? If the unit can work normally? Y Y N Replace the control panel AP1 N Use ohmmeter to measure the resistance between the three terminals on compressor COMP, and compare the measurements with the compressor resistance on Service Manual. If the unit can work normally? N Stop the unit and disconnect the power supply. Then, check the connection of capacitor C2 according to Electrical Wiring Diagram. Refer to the Electrical Wiring Diagram and check if the connection between AP1 and COMP is loose and if the connection order is correct. If the connection between AP1 and COMP is unsecure or the connection order is wrong? N If the unit can work normally? If the unit can work normally? Y N Y Replace the compressor COMP N Use ohmmeter to measure the resistance between the two terminals of compressor COMP and copper tube. Resistance higher than 500MΩ? Y Replace the control panel AP1 END 71 Troubleshooting (3) High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ● ● ● Is outdoor ambient temperature in normal range? Are the outdoor and indoor fans operating normally? Is the heat dissipation environment inside and outside the unit is good? Overheat and high temperature protection Y Is outdoor ambient temperature higher than 53? Normal protection, please operate it after the outdoor ambient temperature is normalized. N 20 minutes after the complete unit is powered off. Is heat dissipation of the indoor unit and outdoor unit abnormal? Y Improve the heat dissipation environment of the unit N Does the outdoor fan work normally? N 1. Check if the fan terminal OFAN is connected correctly 2. Resistance between any two terminals is measure by an ohm gauge and should be less than 1K Ohm. Y Replace the control panel Replace the fan capacitor C1 AP1 Replace the outdoor fan End 72 Troubleshooting (4) Start-up failure (following AP1 for outdoor unit control board) Mainly detect: Whether the compressor wiring is connected correct? Is time for compressor stopping enough? Is compressor broken? Power on the unit Is stop time of the compressor longer than 3 minutes? N Restart it up after 3 minutes Y Does startup fail? Y Are the wires for the compressor connected correctly? Is connection sequence right? N Connect the wires as per the connection diagram Y Replace the control panel AP1 N If the fault is eliminated? N Replace the compressor Y End 73 Troubleshooting (5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: Whether the system pressure is too high? Whether the input voltage is too low? Out of step occurs once the unit is powered on. Out of step occurs in operation Is stop time of the compressor longer than 3 minutes? Is the outdoor fan working normally? Is the outdoor unit blocked by foreign objects? Are the wires for the compressor connected correctly? Is connection sequence right? Is the connection made in clockwise direction? Replace the control panel AP1 Connect the wires correctly Replace the control panel AP1 If the fault is eliminated? If the fault is eliminated? Replace the compressor Replace the compressor End End 74 Check if the fan terminal OFAN is connected correctly Replace the fan capacitor C1 Replace the outdoor fan Remove foreign objects Troubleshooting (6)Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board) Mainly detect: Wether the PMV is connected well or not? Is PMV damaged? Is refrigerant leaked? 20 minutes after the complete unit is powered off Is the terminal FA for the PMV connected correctly? N Connect the wires correctly Resistances between the first four pins close to the terminal hole and the fifth pin are almost the same, less than 100 ohm. Replace the PMV If the fault is eliminated? Replace the control panel AP1 If the fault is eliminated? Coolant leakage, refilling the coolant End 75 Troubleshooting (7) Power factor correct or (PFC) fault (a fault of outdoor unit) (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: Check if the reactor (L) of the outdoor unit and the PFC capacitor are broken The failure diagnosis process is as follows: Start Check wiring of the reactor (L) of the outdoor unit and the PFC capacitor Whether there is any damage or short-circuit? Y Replace it as per the wiring diagram and reconnect the wires If the fault is eliminated? N Remove the PFC capacitor and measure resistance between the two terminals. N Y Is the resistance around zero? The capacitor is short circuited and the capacitor should be replaced Restart the unit If the fault is eliminated? Y N Disconnect the terminals for the reactor and measure the resistance between the two terminals of the reactor by an ohmmeter Whether there is any damage or short-circuit? N Y Replace the reactor Restart the unit If the fault is eliminated? Y N Replace the control panel AP1 N Y End 76 Troubleshooting (8) Communication malfunction: (following AP1 for outdoor unit control board) Mainly detect: Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any damage? Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged? The flow chart for malfunction detect: Start Y N Did the equipment operate normally before the failure occurs? Check wiring inside of the indoor and outdoor units Y Check the wiring of the indoor and outdoor units with reference to the wiring diagram N Is the connection right? N The AP1 voltage detection circuit is at fault Y Correctly connect the corresponding wires for the indoor and outdoor units with reference to the wiring diagram Are wires broken? N If the fault is eliminated? N Check the communication circuit of the outdoor unit If the fault is eliminated? The communication circuit is abnormal Y N Replace the main board of the indoor unit Replace the main board AP1 of the outdoor unit If the fault is eliminated? N Y Y End Y 77 Troubleshooting (9) Flow chart for outdoor communitcation circuit detecting: Start Measure voltage at the Test 10 position as shown in the diagram with a voltmeter Value jumping N Y Measure voltage at the Test 15 position as shown in the diagram with a voltmeter Y Value jumping N Y Fault with outdoor unit Measure voltage at the Test 11 position as shown in the diagram with a voltmeter Value jumping N Y Measure voltage at the Test 12 position as shown in the diagram with a voltmeter N Value jumping Y The communication circuit of the outdoor unit is normal 78 End Troubleshooting Appendix 1: form for indoor/outdoor unit's ambient sensor numerical value of resistance Temp. Resistance Temp. Resistance Temp. Resistance Temp. Resistance 79 Troubleshooting Appendix 2: form for indoor/outdoor unit's tube temperature sensor numerical value of resistance Temp. 80 Resistance Temp. Resistance Temp. Resistance Temp. Resistance Troubleshooting Appendix 3: form for indoor/outdoor unit's air exhaust temperature sensor numerical value of resistance Temp. Resistance Temp. Resistance Temp. Resistance Temp. Resistance Notice: The above information is only for reference. 81 Removal Procedure 10. Removal Procedure 10.1 Removal Procedure of Indoor Unit 1. Disassembly of front panel and filter Open the front panel and draw it outward along the groove which fixes the panel to remove it. Push the filter upward to release it from the bottom groove to remove the filter. Front panel Filter 2. Disassembly of Horizontal Louver and Front Case Bend the horizontal louver to release the clasp of it and then remove it. Unscrew the screws fixing the front case and release the clasp on the back of the front panel. Then remove the front case. Screw 3. Disassembly of electric box cover Remove screws on electric box cover and the earth wire to remove the electric box cover. Screw Earth line 82 Removal Procedure Screw 4. Disassembly of electric box Remove earth wire of evaporator and then remove the temp sensor. Remove screws on both sides of electric box to remove the electric box. Earth line Temp sensor 5. Disassembly of evaporator Remove screws on both sides of evaporator and take out the evaporator with caution. Screw Screw 83 Removal Procedure 6. Disassembly of motor Remove screws on press board of motor to remove the press board.Then Unscrew retaining screws on right sleeve of cross flow fan and then remove the motor and the fan blade. Screw 84 Removal Procedure 10.2 Removal Procedure of Outdoor Unit(1) Note: 18K, take heat pump unit for example 1. Disassembly of top cover Unscrew retaining screw of the handle and then push it downward to remove the handle. Remove screws on top cover and then remove the cover. Top cover Handle Screw 2. Disassembly of grill and right side plate Remove screws of the grill and then remove the grill. Remove screws on right side plate and support of the valve. Then lift the right side plate to remove it. right side plate Grill electric box 3. Disassembly of electric box Remove screws on electric box cover and then unplug the temp sensor. Finally, remove electric box. Temp sensor 85 Removal Procedure 4. Disassembly of axial flow fan Remove retaining nut, spring washer, plain washer And then remove the axial flow fan. Retaining nut Axial flow fan Motor support 5. Disassembly of motor and motor support Remove retaining screws and then the motor Remove the screws on motor support and then lift the motor support to remove it. Self-threading screw Motor 4-way valve Electric expansion valve 6. Disassembly of electric expansion valve and 4-way valve Unsolder weld points of electric expansion valve and then remove electric expansion valve. Unsolder weld points of 4-way valve and then remove the 4-way valve. 86 Removal Procedure Liquid valve 7. Disassembly of gas valve and liquid valve Remove screws on gas valve and liquid valve Unsolder weld points connecting gas valve and Return-air pipe, Then remove gas valve and liquid valve. Screw Gas valve 8. Disassembly of compressor Loose the nut with washer of the compressor. Unsolder suction pipe, discharge pipe. Then remove the pipes and take out the compressor. Screw of compressor 87 Removal Procedure 10.2 Removal Procedure of Outdoor Unit(2) Note: 24K, take heat pump unit for example 1. Disassembly of top cover and front side plate Unscrew retaining screws of the handle and push it downward to remove the handle. Remove screws of the top cover and then remove the cover. Remove screws of front side plate and then remove the front side plate. Top cover Handle Screw front side plate Grill 2. Disassembly of grill and right side plate Remove screws of right side plate, side plate of condensator and valve support. Then, remove the right side plate. right side plate Screw electric box 3. Disassembly of electric box Remove screws on electric box cover and unplug temp sensor. Then remove electric box. Temp sensor 88 Removal Procedure 4. Disassembly of axial flow fan Remove nut, spring washer and plain washer. Then remove axial flow fan. Retaining nut 5. Disassembly of motor and motor support Remove retaining screws and then the motor. Remove screws on motor support and then Axial flow fan Motor support lift the motor to remove it. Self-threading screw 6. Disassembly of 4-way valve Unsolder weld points of 4-way valve to Remove 4-way valve sub-assy. 4-way valve Weld point 89 Motor Removal Procedure 7. Disassembly of gas valve and liquid valve Remove screws on gas valve and liquid valve Unsolder weld points connecting gas valve and Return-air pipe, Then remove gas valve and liquid valve. Gas valve Screw Liquid valve 8. Disassembly of compressor Loose the nut with washer of the compressor. Unsolder suction pipe, discharge pipe. Then remove the pipes and take out the compressor. Screw of compressor 90 GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI Add:Jinji west Rd.Qianshan Zhuhai Guangdong China Tel:86-756-8522219 (After sale Service Dept) Post code:51907 0
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