Related Manuals for Gree GWH18ND-K3NNA4A
Summary of Contents for Gree GWH18ND-K3NNA4A
- Page 1 Change for Life Service Manual GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...
- Page 5 T-ON T-OFF AUTO SWING COOL SLEEP LOCK SPEED HEAT ON/OFF MODE SWING SLEEP TIMER MODE I FEEL TIMER CLOCK TIMER X-FAN TEMP TURBO SLEEP LIGHT...
- Page 6 (membrane decorative strip) (membrane decorative strip) (C panel) (with fingers protective grille) (with fingers protective grille) (cold plasma) (cold plasma)
- Page 7 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, surface with no accumulation of snow, leaves, or trash and equipment location, etc. beside.
- Page 18 Conditions Indoor:DB27℃ WB19℃ Conditions Indoor air flow: Super High Indoor:DB20℃ Indoor air flow: Super High Pipe length: 5m Pipe length: 5m 32 33 34 35 36 37 38 39 40 41 42 43 44 45 Outdoor temp.( ) Outdoor temp.( )
- Page 21 GAS SIDE 3-WAY VALVE 4-Way valve Muffler Di s charge HEAT EXCHANGE (EVAPORATOR) Suction Accumlator COMPRESSOR HEAT EXCHANGE (CONDENSER) LIQUID SIDE 2-WAY VALVE i a r t r e n Capillary i a r t r e n COOLING HEATING...
- Page 22 RECEIVER AND POWER YEGN DISPLAY BOARD FAN MOTOR ROOM TEMP. TUBE TEMP. DISPLAY SENSOR SENSOR EARTH-PLATE YEGN YEGN L101 ROOM TUBE PG PGF DISP1 DISP2 EVAPORATOR AP1 PRINTED CIRCUIT BOARD N(1) OFAN SWING TR-IN JUMP TR-OUT I I I TRANSFORMER STEPPING MOTOR...
- Page 23 RECEIVER AND POWER DISPLAY BOARD YEGN FAN MOTOR ROOM TEMP. TUBE TEMP. DISPLAY SENSOR SENSOR EARTH-PLATE YEGN YEGN L101 ROOM TUBE DISP1 DISP2 EVAPORATOR AP1 PRINTED CIRCUIT BOARD N(1) L(4) COMP(3) SWING JUMP OFAN STEPPING MOTOR RECEIVER AND POWER DISPLAY BOARD YEGN FAN MOTOR ROOM TEMP.
- Page 24 RECEIVER AND POWER YEGN DISPLAY BOARD FAN MOTOR ROOM TEMP. TUBE TEMP. DISPLAY SENSOR SENSOR EARTH-PLATE YEGN YEGN EVAPORATOR L101 ROOM TUBE PG PGF DISP1 DISP2 N(1) AP1 PRINTED CIRCUIT BOARD COMP SWING TR-OUT TR-IN JUMP OFAN I I I TRANSFORMER STEPPING MOTOR C(T,U)
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Page 25: Fan Motor
C(T,U) COMP. FAN MOTOR COMP 5YEGN YEGN R(M,V) S(W,X) (BN) (BU) CAP. CAP. YEGN N(1) RELAY 10WH(OG) TERMINAL BOARD TERMINAL BOARD... - Page 26 10 11 Connector of tube temperature sensor Connector of ambient temperature sensor Control connector of health function and control relay K116 Feedback connector of indoor Control connector of compressor and control relay 6 Connector of neutral wire 7 Control connector of indoor fan Neutral wire connector of health function 9 Auto button...
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Page 27: Top View
TOP VIEW BOTTOM VIEW... - Page 28 ON/OFF Press it to start or stop operation. MODE Press it to select operation mode(AUTO/COOL/DRY/FAN/HEAT). Press it to decrease temperature setting. Press it to increase temperature setting. Press it to set fan speed. SWING Press it to set swing angle. SLEEP TIMER Press it to set auto-on/auto-off timer.
- Page 29 TIMER: Press this button to initiate auto-on/auto-off timer. To cancel auto-timer program, press this button twice. Combination of "+" and "-" buttons: About lock Press "+" and "-" buttons simultaneously to lock or unlock the keypad. If the remote controller is locked, is displayed.
- Page 30 ON/OFF Press it to start or stop operation. Press it to decrease temperature setting. Press it to increase temperature setting. Press it to set fan speed. MODE Press it to select operation mode (AUTO/COOL/DRY/FAN/HEAT). I FEEL Press it to set HE ALTH function Press it to set AIR function.
- Page 31 SLEEP icon : is displayed by pressing the SLEEP button. Press this button again to clear the display. TEMP icon: Pressing TEMP button, (set temperature), (ambient temperature), (outdoor ambient temperature) and blank is displayed circularly. Up & down swing icon: is displayed when pressing the up &...
- Page 32 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. Press this button to set HEALTH function ON or OFF. After the unit is turned on, it defaults to HEALTH function ON. Press this button to select AIR function ON or OFF.
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Page 33: Replacement Of Batteries
Replacement of Batteries 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. Reinstall the battery cover plate. ★Notes: ●When replacing the batteries, do not use old or different types of batteries, otherwise, it may cause malfunction. -
Page 34: Overcurrent Protection
1Temperature Parameters Indoor preset temperature (Tpreset) Indoor ambient temperature (Tamb.) 2 Basic functions (The temperature in this manual is expressed by Centigrade. If Fahrenheit is used, the switchover between them is Tf=TcX1.8+32.) Once the compressor is energized, there should be a minimum interval of 3 minutes between two start-ups. But if the unit is de-energized and then energized, the compressor can restart within 3 minutes. -
Page 35: Dry Mode
2.2 Dry Mode 2.2.1 Dry Conditions and Process When Tamb. Tpreset+2 , the unit starts drying and cooling operation. In this case, the compressor and the outdoor fan operate; the indoor fan operates at low speed. When Tpreset - 2 ≤Tamb. ≤Tpreset+2 , the unit will start drying operation. In this case, th e indoor fan operates at low speed ; the compressor and the outdoor fan operate for 6 minutes and stop for 4 minutes in cycle. - Page 36 2.3.3 Protection Function s Overheating Prevention Protection If the evaporator tube temperature overheats , the outdoor fan stops operation . When the tube temperature re turn s to normal, the outdoor fa n resumes operation. Noise Silencing Protection If the unit is turned off by pressing ON/OFF button or during mode switchover , the 4 - way valve stop s with a delay of 2 min utes. 2.3.4 Overcurrent Protection This protection is the same as that in cooling m ode ( B ut indoor fan will blow residual heat).
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Page 37: Memory Function
There are 7 swing stat u s of horizontal louver: P osition s L, A, B, C and D, swing between L and D and stop at any position between L and D (angle s between L and D are equiangular). Upon turning off the unit, the horizontal louver will close at position 0 . - Page 40 Space to the ceiling 15cm Above Space to the wall 15cm Above 15cm Above Space to the wall 300cm Above Above Air outlet side Space to the floor Note:This is just the schematic plan, please refer to the actual product. Space to the obstruction Air inlet side 30cm Above...
- Page 41 Wall Wall Mark on the middle of it Gradienter Space Space to the to the wall wall 150mm 150mm above above Right Left Ф55mm Ф55mm (Rear piping hole) (Rear piping hole) Outdoor Indoor Wall pipe Seal pad Φ55 outlet pipe of indoor unit outlet pipe of drain hose...
- Page 42 External connection Gas side piping electric wire Liquid side piping Tailing 2 Gas side piping Tailing 1 Liquid side insulation Piping insulation Finally wrap it Fig.3 Water drainage pipe with tape Left Right Left rear Fig.4 Right rear Fixing hook Mounting plate Mounting...
- Page 43 Manifold Valve Multimeter Manometer -76cmHg Hi handle Lo Handle Charging hose Low pressure valve Fig.6 Vacuum pump Drain-water hole Bottom frame Drain connecter Hose (available commercially, inner dia. 16mm) Items to be checked Possible malfunction Has the unit been fixed firmly? The unit may drop, shake or emit noise.
- Page 44 Fig. a Fig. b Air filter Healthy filter Fig. c...
- Page 45 39 40 AUTO T-ON T-OFF COOL SWING SLEEP LOCK HEAT SPEED ON/OFF MODE SWING SLEEP TIMER...
- Page 47 40 41 T-ON T-OFF AUTO SWING COOL SLEEP LOCK HEAT SPEED ON/OFF MODE SWING SLEEP TIMER...
- Page 49 T-ON T-OFF AUTO SWING COOL SLEEP LOCK HEAT SPEED ON/OFF MODE SWING SLEEP TIMER...
- Page 51 39 40 T-ON T-OFF AUTO SWING COOL SLEEP LOCK HEAT SPEED ON/OFF MODE SWING SLEEP TIMER...
- Page 60 Part Code Description GWH18ND-K3NNB1A/O Product Code CA136W0010 Front grill 22413433 Front panel B3 20012456S Chassis Sub-assy 012032134 Magnet Coil 43000400 Compressor and fittings 00120023 4-way Valve Assy 03123303 Capillary Sub-Assy 03103911 Right Side Plate Assy 0130200404 Valve 07100004 Valve 07100006 Big Handle 26233433 Valve Support...
- Page 65 (1) Malfunction of temperature sensor Start Is the wiring terminal between temperature sensor and the controller loosened or poor ly contacted? Insert the temperature sensor tightly Malfunction is eliminated. Is there short circuit due to trip-over of the par ts? Make the parts upright Malfunction is eliminated.
- Page 66 (2) PG motor (indoor fan) does not operate (H6) “H6”is displayed on the unit. Stir the fan blade with a hand when the unit is DE - ENERGIZED Reinstall the motor Does the and the blade to blade rotate make it rotate unsmoothly? smoothly.
- Page 67 (3) Jumper cap malfunction (C5) C5 is displayed on the unit. Install a matching Is there jumper cap on the jumper cap . controller? Is the malfunction eliminated? Re-insert the jumper Is the jumper cap inserted incorrectly or improperly? Is the malfunction eliminated? Replace the jumper...
- Page 68 “U8” is displayed on the unit. Re-energize 1 minute after de-erergization The unit returns to normal. Is“U8” Conclusion: U8 is displayed due to still displayed? instant energization after de- energization while the capacitor discharges slowly. The zero-cross detection circuit of the mainboard is defined abnormal.
- Page 69 Start Normal fluctuation is within 10% of the rated voltage on the Is the supply voltage unstable with big fluctuation? Malfunction is eliminated. nameplate Is the supply voltage too low with overload? Adjust the supply voltage to maintain it within normal range Malfunction is eliminated.
- Page 73 Steps Procedure 1. Remove filter Open the panel Panel Loose the clasps on filter. Clasps Push the filter inward and pull the filter upwards to remove it. Filter 2. Remove guide louver Remove the axial bush on guide louver. Axial bush...
- Page 74 Steps Procedure Bend the horizontal louver slightly and then remove the Guide Louver Guide Louver 3. Remove panel Push open the rotation shaft at both sides of panel to let it come out of the Rotation shaft groove, and then remove the panel. Panel 4.
- Page 75 Steps Procedure Electric box cover Remove the electric box cover 2 to separate the electric box cover and front case. 5. Remove front case Open the screw cap on front case and then twist off the screws on the front case with screwdriver.
- Page 76 Steps Procedure 6. Remove swing blade Loosen clasps connected the swing blade and bottom case. Clas p Remove the swing blade to separate it from the bottom case. Swing blade Remove the Finger-protecting grill. (NOTE:Only applicable for units with finger-protecting grill) Finger-protecting grill 7.
- Page 77 Steps Procedure Loosen the clasps between electric box cover and electric box. Clasp Fan motor signal wire Pull out the plug on motor connection wire. Pull out the plug on connection wire of stepping motor. Plugof stepping motor Twist off the 2 screws on displayer with screwdriver.
- Page 78 Steps Procedure 8. Remove press board of connection pipe Pipe Clamp Auxiliary Piping Screw Twist off the screws on press board of connection pipe with screwdriver. Pipe Clamp Remove the press board of connection pipe to separate it from the bottom case.
- Page 79 Steps Procedure Stepping Motor 10. Remove motor and axial flow blade Twist off the screws on stepping motor with screwdriver and then remove the stepping motor. Motor press plate Twist off the screws on motor press plate with screwdriver, and then remove the motor press plate.
- Page 80 1.Remove b ig handle Before disassembly. Handle Remove 1 connection screw fixing handle and then remove the handle. 2. Remove t op panel Top panel Remove connection screws among top cover, front panel and right side plate.
- Page 81 3.Remove f ront grill and front panel Remove 2 connection screws of front grill and front panel. Then remove front grill. Front grill Remove 5 connection screws among front panel, chassis ad motor support. Then remove the front panel. Front panel 4.Remove r ight side plate Right side plate Removal 6 connection screws among right...
- Page 82 5.Remove a xial flow fan and motor Remove nuts of axial flow fan and then re- move it. Axial flow fan Motor support Remove self-threading screws of motor and then remove leading wire of motor. Remove the motor and self-threading screws fixing motor support.
- Page 83 7.Removal of isolation sheet Remove 3 screws of isolation sheet and then remove the sheet. Isolation sheet 8.Remove s ound-proof sponge Remove sound-proof sponge wrapping compressor. Sound-proof sponge 9.Remove m agnetic coil Remove screws of magnetic coil and then remove it Magnetic coil...
- Page 84 10.Remove c ompressor Unsolder weld point between capillary and out- let pipes of valve and condenser. Then remove capillary. Don’t block capillary with welding slag when replacing the capillary. (Note: make sure there is no refrigerant Liquid valve inside the compressor before unsoldering compressor or any pipe.) Remove 2 screws of gas valve and unsolder weld point connecting gas valve to air return...
- Page 85 Step s Procedur e 1. Before dis a s s embl y 2 . R e mo ve ha nd l e Remov e the s c re w fi xin g the han dle an d then remov e th e han dl e. 3.
- Page 86 Procedur e Step s 4. Remove front panel and rear guard grille rear guard grille screws panel Remove screws fixing the front panel and the rear guard grille respectively, and then remove the front panel and the rear guard grille. screws screws 5.
- Page 87 Steps Procedure 7. Remove motor and motor support motor support Remove screws on the motor and the motor motor support, and then remove the motor and the motor support. screws 8. Remove electric box electric box assy Remove the 2 screws fixing the electric box;...
- Page 88 Steps Procedure 10. Remove solenoid coil Remove the screw on the solenoid coil, and then remove the solenoid coil. solenoid coil screw 11. Remove compressor 4-way valve assy Unsolder the pipes (including the soldering joint among 4-way valve, compressor, the condenser, the gas valve and the liquid valve) connected to the compressor compressor...
- Page 89 Steps Procedure 12. Remove isolation sheet Remove the 3 screws fixing the isolation sheet and then remove the isolation sheet. isolation sheet screws 13. Remove valve support and condenser Remove screws fixing the valve support condenser and then remove the valve support; Remove the screw fixing the condenser and then pull the condenser upwards to remove it.
- Page 90 Add: West Jinji Rd, Qianshan, Zhuhai, Guangdong, China, 519070 Tel: (+86-756) 8522218 Fax: (+86-756) 8669426 E-mail: gree@gree.com.cn www.gree.com For continuous improvement in the products, Gree reserves the right to modidy the product specification and appearance in this manual without notice and without incurring any obligations.