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KF(R)-70DW/NA1 Technical Service Manual

Introduction

In this technical service manual, you will find rich references to KF(R)-70DW/NA1

model including photoes, technical specifications, explosive views, spare parts lists and

circuit diagrams. Service people and engineers of Gree' s customers and distributors would

find it a very handy source of technical information of our products.

Technical Support Group

Mar.2004

Contents

Summary

Technical and specifications

Names and spare parts

Outlines and installation dimensions

Working principle diagram

Circuit diagram

PCB function manual

Disassemble procedures

Explosive view and spare parts list

Care and maintenance

Trouble shooting

Содержание KFR-70DW/NA1

Страница 1: ...Service people and engineers of Gree s customers and distributors would find it a very handy source of technical information of our products Technical Support Group Mar 2004 Contents Summary Technical...

Страница 2: ...1 KF 70DW NA1 1Ph 230V 50Hz R407C KFR 70DW NA1 Summary Model Note...

Страница 3: ...Swing Motor MP35CA Input Power of Motor W 4 Fuse A controllor5A transformer0 2A Working Capacitor uF 3 Noise dB A 48 Dimension W D H mm 1300X188X600 Dimension of Package W D H mm 1414x248x724 Indoor u...

Страница 4: ...mm 1100x450x920 Net Weight Gross Weight kg 75 87 Refrigerant Charge kg R407C 2 4 Length m 5 Liquid Pipe mm 9 52 3 8 Outer Diameter Gas Pipe mm 16 5 8 Height m 5 Connecting Pipe Max Distance Length m...

Страница 5: ...Area m2 1 042X 0 19 Swing Motor MP35CA Input Power of Motor W 4 Fuse A Controllor5A transformer0 2A Working Capacitor uF 3 Noise dB A 47 Dimension W D H mm 1300x188x600 Dimension of Package W D H mm...

Страница 6: ...mm 1100x450x920 Net Weight Gross Weight kg 75 87 Refrigerant Charge kg R407C 2 5 Length m 5 Liquid Pipe mm 9 52 3 8 Outer Diameter Gas Pipe mm 16 5 8 Height m 5 Connecting Pipe Max Distance Length m...

Страница 7: ...3 7 Namesofspareparts Indoor unit Left decoration plate Airguidelouver LEDboard Right decoration plate Frontgrill Wrappingtape Connectionpipe Valve Airout Airin Outdoorunit Wirelessremotecontrol...

Страница 8: ...100cm 30cm 60cm 60cm 150cm 8 Outlinesandinstallationdimension Outlinesanddimensionsofindoorunit or more or more or more ormore ormore...

Страница 9: ...50 572 378 412 340 70 65 106 9 Outlines and dimensions of outdoor unit Unit Handle Gas pipe Wire hole Liquid pipe Front grill More than More than Morethan Airoutlet Floor More than More than More than...

Страница 10: ...refrigerant gas into outdoor heat exchanger With the help of axial flow fan the gas transfers its latent heat into outdoor air and becomes high pressure refrigerant liquid The liquid is throttled by...

Страница 11: ...11 KFR 70DW NA1 KF 70DW NA1 Circuit diagram The circuit diagram are subject to change please refer to the ones on the machine...

Страница 12: ...oor fan motor run Indoor fanmotor and swing motor run at the setting fan speed and setting When Tamb Tset 1 compressor outdoor fan motor stop running Indoor fan runs at set fan speed When Tset 1 T amb...

Страница 13: ...it is turned off or swtich to othermode after compressor stopped for 2min the 4 way valve is powered off Conditions for anti cool wind When compressor start to run in HEAT mode the indoor fan motor do...

Страница 14: ...s 24 When Tamb 20 it will run in HEAT mode inner setting temp is 20 Tamb 24 quit HEAT mode If it is cooling only type unit when Tamb 20 it will run in FAN mode inner setting temp is 24 When each mode...

Страница 15: ...compressor stopped detected low pressure switch tripped off the unit stop and E3 displayed that cannot resume automatically need to press ON OFF to turn off the unit then repress ON OFF button can re...

Страница 16: ...rror codes E1 Compressor high pressure protection E2 Indoor anti freezing protection E3 Compressor low pressure protection E4 Air exhaust pipe high temp protection E5 Low pressure protection Functions...

Страница 17: ...the indicator flash When power suply indicator is powered on it will light when powered off it will extinguish When it is indoor anti freezing protection compressor high pressure protection low press...

Страница 18: ...s very hot SWING button When it is pressed the louvers start to rotate automatically and stop when repressed FAN button Press this button to change the fan speed of AUTOFAN COOL mode DRY mode FAN mode...

Страница 19: ...to this air conditioner will not be described below Liquid crystal displayer It shows all set contents SLEEP button PressthisbuttontosetSLEEP operationandstopwhenrepressed TIMER OFF button At stoppin...

Страница 20: ...pera ture Press MODE button to select When pluged in press 1 0 button the unit will start to run Microcomputer will accord to the room sensor detected the temp and setting temp differences to start th...

Страница 21: ...indoor fan motor stop running water valve is turned off heat operation is stopped The setting range is Press SWING button the louver guide will automatically swing when repressed it once more it will...

Страница 22: ...fan speed is unavailable select the if the When room sensor detected the temp is lower than setting temp 2 or more the water valve indoor fan motor stop running When room sensor detected the temp is b...

Страница 23: ...O mode the standard cooling setting temp is 25 the standard heating setting temp is 20 When plug in press 1 0 unit will start to run 1 Press MODE button to select AUTO mode Microcomputer will achieve...

Страница 24: ...ER operation mode At stopping can set timer on each time to press TIMER ON the time will be increased 0 5h circulates as below At running can set timer off each time to press TIMER OFF the time will b...

Страница 25: ...ature Press MODE button to select modes When pluged in press 1 0 the unit will start to run In cool and dry modes set the sleep operation and run for 1 hour later the setting temp will be increased 1...

Страница 26: ...tteries Cover Never mix new and used or diff erent types of two batteries to insert Take out the batteries when the wireless remote control is not in use to avoid the the liquid damage it The operatio...

Страница 27: ...photo by screwdriver then take out the left right decoration plates along the direction of arrow Disassemble electric box assy a Screw off 2pcs bolts with screwdriver as shown in Fig 8 3 and take off...

Страница 28: ...assy To screw off 3pcs bolts in the photoes can disassemble the water tray assy Disassemble swing louver and holder assy Firstly to screw off 2pcs bolts at two ends of the swing louver holder assy by...

Страница 29: ...Right side plate foam sub assy Left side plate foam sub assy According to the direction to take out the left right sides plates foam sub assy Disassemble motor assy a Pressing the clasp position wher...

Страница 30: ...Disassemble the motor holder supporting plate Using the screwdriver to screw off the bolts in the motor holder rear side plate assy and supporting plate Disassemble the left and right plates Using the...

Страница 31: ...p cover To screw off the bolts around the top cover then lift it upward can take off the top cover As shown in Fig Disassemble the front side plate To screw off the bolts around the top cover then dow...

Страница 32: ...rear side plate assy Screw off 5pcs bolt of the rear side plate and 2pcs bolt of the rear grill can disass emble the rear side plate assy As shown in Fig Disassemble the gas valve and liquid valve To...

Страница 33: ...oint Disassemble the outdoor unit motor Toscrewoffthefixingboltofmotorandmotor support and pull out the connection wire of the motor can take off the motor Disassemble four way valve only the cooling...

Страница 34: ...ser gate then can dis assemble the capillary make sure that do not let any weld ing dregs to block the capillary As show in right fig Capillary assy Fig Fig Bottom bolts Disassemble the compressor Fir...

Страница 35: ...9 35 Explosive view of indoor unit spare parts Explosiveviewandsparepartslists...

Страница 36: ...ase 1 30 Wire Clamp 1 31 Terminal Board RS9413G RS9413G 1 32 Fuse 5A 250VAC 5A 250VAC VDE 1 33 Main PCB 6152J 6151J 1 34 Ring of Bearing 2 No Description KFR 70D NA1 24212020 24222016 10512404 2611202...

Страница 37: ...Foam 1 64 Bearing Fixing Plate 1 65 Rear Side Plate of Air Outlet 1 66 Connecting Lever 3 67 Connecting Lever 2 68 Swing Louver 22 10582009 10512028 01332405 12312405 01302405 10582008 01332407 39000...

Страница 38: ...38 Explosive view of outdoor unit spare parts...

Страница 39: ...0H5B C RN220H5B 1 35 Overload Protector 1 36 Compressor Gasket 3 37 Metal Base 1 38 Isolation Sheet Assy 1 39 Front Plate 1 07255251 03003431 430004031 01303709 26235252 75013118 76710210 06123401 071...

Страница 40: ...loth is wet please dry it after cleaned Warning Never use the benzene gasoline or something is hard to clean Never use the hot water 40 above for cleaning in order to avoid some spare part or part def...

Страница 41: ...c diagram to check the cir cuit and correctly connect The fuse of controller is melt Replace the fuse of controller Both indoor unit and outdoor unit can not start Is the wire connection current plate...

Страница 42: ...broken or damaged Wrong wiring According to circuit diagram to connect wire c orrectly The installation place of indoor unit is not suitable Indoor unit filter blocked Outdoor unit heat exchanger bloc...

Страница 43: ...the loosen bolts Outdoor pipelines collide each other To deleave the collided pipelines Indoor metal sheets collide each other 2 Stickthe dumping cushion ts between metal shee 1 Tighten the connect b...

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Gree KFR-70DW/NA1, Техническое и сервисное руководство

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