Gree GWC09AA Installation And Service Manual Download Page 96

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GREE Service Manual GWC09AA / K5NNA6A

Page 96

Valve

Refrigerant Hose

Manifold >Low Pressure Gauge

Connection Hose valve A > L, Outdoor Unit

Manifold > Vacuum Pump

Connection Hose valve B > Vacuum Pump

Manifold > Refrigerant Cylinder

Connection Hose valve C > R-290 Cylinder

Manifold (Vacuum Gauge)

Connection Hose valve D > Vacuum Gauge

Outdoor Unit Liquid Side (High)

Outdoor Unit Gas Side (Low)

Refrigerant Circuit—Evacuation and Charging

Indoor

Unit

Outdoor

Unit

Summary of Contents for GWC09AA

Page 1: ...GREE Service Manual GWC09AA K5NNA6A Page 1 Models GWC09AA K5NNA6A Installation and Service Manual...

Page 2: ...mer Platz 10 10785 Berlin E Mail programmbuero programmbuero klima de Phone 49 0 30 408 190 218 Fax 49 0 30 408 190 303 Internet http www international climate initiative com Support The publication w...

Page 3: ...em and its components 014 Delivery conditions of indoor outdoor unit 052 General technical specifications 014 Principle installation arrangement 053 Indoor unit 015 Tools equipment and accessories 054...

Page 4: ...Exploded views and part lists 126 Refrigerant venting 076 Exploded view of the indoor unit 126 Venting course of activities part 1 077 Part list of the indoor unit 127 Venting part 1 detailed procedu...

Page 5: ...oning HC Hydrocarbon LFL Lower flammability level OFDN Oxygen free and dry nitrogen PCB Printed Circuit Board PG motor Indoor unit fan motor PPE Personnel protective equipment RAC Refrigeration and ai...

Page 6: ...to the air conditioner unit itself Keep this manual in a location for easy access as it is needed for reference during installa tion maintenance service and operation of the unit This manual does not...

Page 7: ...r conditioning electrics and refrig erant handling of the country within which the equipment is installed Key sections and or sentences are highlighted with specific icons and symbols to the right sid...

Page 8: ...pen flames hot surfaces static electricity are strictly prohibited At the installation site no matter what kind of activities are executed smoking is strictly prohibited Likewise ensure the installati...

Page 9: ...g or the wall is solid enough to carry the weight of the sys tem which will be mounted on it Pay attention to the installation of the outdoor unit operating noise and air flow should not bother neighb...

Page 10: ...If anything irregular or conspicuous occurs such as burnt part smell loud noise etc disconnect the system immediately and isolate from the electrical supply Minimum room size HC R 290 is a flammable...

Page 11: ...nsable gases in the refrigeration system and how to eliminate them The importance of the use of oxygen free dry nitrogen OFDN for system flush ing leak test and strength test The elimination of humidi...

Page 12: ...g and interpretation of the measured parameters It is very important to make use of an electronic gas detection device Take care that the electronic gas detector is designed and certificated for the u...

Page 13: ...and check the good working of the evaporator including by making measurements during operation Functional checking of the reverse cycling control device Checking the surface of the evaporator Methods...

Page 14: ...ply Rated Voltage V 220 240 Rated Frequency Hz 50 Phases 1 4 Power Supply Mode Indoor 5 Cooling Capacity W 2650 6 Heating Capacity W NA 7 Cooling Power Input W 883 8 Heating Power Input W NA 9 Cooling...

Page 15: ...Input of Heater W NA 29 Evaporator Form Aluminium Fin copper Tube 30 Pipe Diameter mm 7 31 Row fin Gap mm 2 1 6 32 Coil Length LXDXW mm 603X264X25 4 33 Swing Motor Model MP28VB 34 Output of Swing Moto...

Page 16: ...ssor Power Input W 820 51 Overload Protector Internal 52 Throttling Method Capillary 53 Operation Temp 16 C 30 C 54 Ambient Temp Cooling 18 C 43 C 56 Condenser Form Aluminium Fin copper Tube 57 Pipe D...

Page 17: ...nsion of Package L W H mm 881X363X595 78 Net Weight kg 35 79 Gross Weight kg 39 80 Refrigerant R 290 81 Refrigerant Charge kg 0 20 Connec tion Pipe 82 Length m 5 83 Gas Additional Charge g m Not Permi...

Page 18: ...tion fixed at 5 m 3 P Suction Pressure of refrigerant measured at service port connection 4 T1 Inlet and Outlet Temperature of evaporator pipe surface Tempera ture 5 T2 Inlet and Outlet Temperature of...

Page 19: ...e The indoor unit is equipped with pre fixed and isolated refriger ant transfer pipes The length of the pipes is 5 m The indoor unit is pre charged with HC R 290 refrigerant In addition pre fixed is 1...

Page 20: ...GREE Service Manual GWC09AA K5NNA6A Page 20 Outdoor Unit...

Page 21: ...e Stop valve 7 3 way valve Stop valve and SAE service port 9 Indoor unit Pre assembled with 5 m refrigerant transfer pipes 10 Outdoor unit P1 Suction pressure R 290 low pressure gauge measuring T1 Tem...

Page 22: ...th the unit Symbol Colour Symbol Symbol Colour of Symbol BU Blue BN Brown YE Yellow WH White RD Red BK Black YEGN Yellow Green Protective Earth Symbol Parts Name Symbol Colour Symbol Symbol Colour of...

Page 23: ...Page 23 Electrical Wiring Outdoor Unit These circuit diagrams are subject to change without notice please refer to the one sup plied with the unit Do not modify electrical com ponents or wiring for re...

Page 24: ...r control 12 Indoor tube temperature sensor 4 Relay box control 13 Transformer output terminal 5 Swing motor control 14 Live wire input terminal of relay box 6 PG motor feedback 15 Fuse 7 Jumper cap 1...

Page 25: ...GREE Service Manual GWC09AA K5NNA6A Page 25 Printed Circuit Board bottom view Left Right Down Up Do not modify electrical com ponents or wiring for replacements only use OEM spare parts...

Page 26: ...GREE Service Manual GWC09AA K5NNA6A Page 26 Relay Box top view Relay Box bottom view Down Up Left Right Do not modify electrical com ponents or wiring for replacements only use OEM spare parts...

Page 27: ...GREE Service Manual GWC09AA K5NNA6A Page 27 Functional description and controls The remote control...

Page 28: ...GREE Service Manual GWC09AA K5NNA6A Page 28...

Page 29: ...GREE Service Manual GWC09AA K5NNA6A Page 29 Unit Functions...

Page 30: ...the batteries do not use used or differ ent types of batteries otherwise it may cause malfunc tion If the remote controller will not be used for a long time please remove batteries to avoid leaking M...

Page 31: ...The system starts cooling if the ambient temperature is higher or equal to the preset temperature 1 C T amb Tpreset 1 C Under this condition the compres sor and the outdoor unit fan are running adequa...

Page 32: ...set value 2 C but lower or equal to the preset value of 2 C T preset 2 C Tamb Tpreset 2 C the system starts the dehumidifying functio n So the fan of the in door unit is decelerated to LOW position Th...

Page 33: ...system exceeds the permissible stress for three consecutive seconds the system will stop every function apart from the indoor unit fan which runs further If there won t be an overvoltage metered thre...

Page 34: ...e preselected temperature AUTO MODE Opting the AUTO mode system changes to the action which considers close to the registered room condition COOLING or FAN Concerning the modes check against upside Th...

Page 35: ...osen conditions Putting the timer in OFF position in system standstill it stays de energised In case the timer is switched in OFF position during system operation it will go on until it reaches the pr...

Page 36: ...move or swing is adjusted the motor will move the air outlet flap clockwise to L If the system is energized and a swing was preselected the flap will move matching the preset between D and L position...

Page 37: ...or a period of time the unit will display LOCKED and stop running to avoid auto protection of the compressor motor If the system is energized the indoor unit will display H6 Memory function The system...

Page 38: ...rade propane is not suitable since it contains high levels of impurities which would damage the refrigeration system and may not provide the desired refrigerating capacity or efficiency The structural...

Page 39: ...plosive air vapour mixture at ambient temperatures Vapour is heavier than air and may travel to remote sources of ignition e g along drainage systems into basements etc Liquid releases generate large...

Page 40: ...is breathing but unconscious place them in the recovery position Obtain medical assistance immediately Skin In case of cold burns flush with water to normalize temperature Cover the burns with sterile...

Page 41: ...ould be used to assist approach to the source of the fire Large fires should only be handled by Fire Brigade DO NOT USE WATER JET Small fire Use dry powder extinguisher DO NOT USE WATER OR FOAM Specia...

Page 42: ...done first 2 It is recommended to isolate the working environment in order to keep out any unauthorised personnel 3 It is useful to set up signs such as no smoking or access denied 4 It is prohibited...

Page 43: ...ete volume by liquid refrig erant The pressure must be controlled in order to ensure that the permissible pressure of the cylinder is not exceeded at any time After filling the cylinder must be marked...

Page 44: ...porary repairing Based on the results of the systems examination suitable measures need to be identified in order to avoid a recurrent appearance of the leak Before embarking on the repair ensure that...

Page 45: ...ted Instructions for calibration can be found in the instruction manual of the detector or upon request from the manu facturer A possible re calibration must be done within an area which is free of re...

Page 46: ...depending on the size of system charged with refrigerant and use the smallest size of cylinder available 10 For recovery of R 290 only use cylinders which are allowed to be filled with R 290 11 Make s...

Page 47: ...the emergency measures in case of accident or emergency 3 Always carry a fire extinguisher during transportation with you It should be a dry powder fire extinguisher with a capacity of at least of 2...

Page 48: ...9 12 84 26 14 8 195 89 1 96 28 41 95 89 0 96 13 91 25 13 203 43 2 03 29 51 103 43 1 03 15 00 24 11 2 211 19 2 11 30 63 111 19 1 11 16 13 23 9 4 219 18 2 19 31 79 119 18 1 19 17 29 22 7 6 227 39 2 27 3...

Page 49: ...5 37 77 83 11 51 8 654 81 6 55 94 97 554 81 5 55 80 47 12 53 6 673 40 6 73 97 67 573 40 5 73 83 17 13 55 4 692 38 6 92 100 42 592 38 5 92 85 92 14 57 2 711 75 7 12 103 23 611 75 6 12 88 73 15 59 731...

Page 50: ...4 1466 71 14 67 212 73 1366 71 13 67 198 23 44 111 2 1500 23 15 00 217 59 1400 23 14 00 203 09 45 113 1534 31 15 34 222 54 1434 31 14 34 208 03 46 114 8 1568 96 15 69 227 56 1468 96 14 69 213 06 47 11...

Page 51: ...Dismantling The main concern for involved service personal is to avoid the release of any refrigerant during in stallation maintenance repair and service of the HC R 290 air conditioning system The fo...

Page 52: ...e installed condition With delivery the two main components indoor and outdoor unit are pressurised and con tain the complete HC R 290 refrigerant charge amount of the functional AC sys tem For instal...

Page 53: ...ping and electrical cable pre assembled 4 Drain pipe 5 Indoor wall mounted unit 6 Quick coupler for refrigerant transfer tube connections 7 Air Inlet evaporator 8 Air outlet evaporator 9 Shadow zone f...

Page 54: ...d to close the stop valves at the outdoor unit 15 Leak detector HC R290 To detect gas leaks and for the use as PPE 16 Gauge set HC R290 To test and to check the system pressure after installation 17 R...

Page 55: ...itched off during installation For installation service and repair always provide a dry powder fire extinguisher within the work area Before installation The system contains exactly 200 grams of HC R...

Page 56: ...nger of outer influences for a risk of malfunction or failure In cases when in stallation to these sites is unavoidable first contact the GREE Co service part ner 1 Places with strong heat sources com...

Page 57: ...of split air conditioning units may apply The installation site indoor unit Choose an installation site according to the dimensions see page 58 diagram 1 Make sure that condensate can flow out easily...

Page 58: ...GREE Service Manual GWC09AA K5NNA6A Page 58 Installation Dimension Diagram...

Page 59: ...nd according the local requirements 11 Installation area is well ventilated 12 There are no sources of ignition within the range of two metres 13 Warning signs are placed 14 Fire extinguisher is prese...

Page 60: ...ng must be done whilst obeying the local rules and regulations 4 The earthing resistance must not exceed 4 Ohms Otherwise an operation with combustible refrigerants is not allowed 5 The connection to...

Page 61: ...he tools for mounting the system start mounting the indoor unit The Mounting Plate Install the mounting plate where the indoor unit will be placed Place the mounting plate horizontally ensuring there...

Page 62: ...her bent nor kinked Both bent and kinked could obstruct the correct flow of the condensate If it is not possible to realise a descent condensate pump must be installed If condensate is drained to the...

Page 63: ...indoor unit The connec tion must be fixed with adhesive tape 2 Insert the condensing pipe into the piping hole sleeve 3 Lag the piping hole sleeve with a wide adhesive tape in order to prevent it fro...

Page 64: ...ead the main power cable with socket from the right or from the left side cut off the tailings 1 on the operational side 2 Cut off tailing 2 if you want to lead out both the main power cable the in do...

Page 65: ...e consistency of the wall Use vibration dampers to prevent a transmission of oscillations and vibrations from the unit to the wall Make sure to mount the outdoor unit with a maximum descent not exceed...

Page 66: ...Other wise this would lead to short circuits or fire Do not exceed the maximum torque of the connection in order to avoid leakage Make the connection of the refrigerant piping as mentioned below 1 Rem...

Page 67: ...consists of Suction Line L 1 Stop valve at outdoor unit stem to be activated by Allen key with SAE connection 2 Service port 1 4 SAE connection with internal Schrader valve 3 Male Quick Coupler part...

Page 68: ...This is to ensure that all installation activities are made prop erly that the system is wired correctly and that the unit operates with the in tended performance 1 Ensure that any tools and installat...

Page 69: ...side of the system again 7 Put back again the sealing caps to the valves and the service port 8 Finally carry out the search for refrigerant leakage After switching off the system check for the electr...

Page 70: ...imum of 15 MINUTES Measure air inlet T1 and air outlet T2 temperature at the indoor unit The temperature difference should be at least 8 K Electrical Data Power Supply Voltage Overall Ampere Reading C...

Page 71: ...hing and protection gloves made of cotton 5 Should it be demanded to leave the room dur ing maintenance for example in order to get spare parts make sure that no unauthorised persons enter the room du...

Page 72: ...smooth running 2 Examine the compressor for functionality and smooth running 3 Check that the fixings and vibration dampers of the compressor are in good condition 4 Check the heat exchanger condenser...

Page 73: ...smooth operation Housing Outdoor air temperature C Intake Outlet Compressor Compressor fixing and dampers Operational noise Drawn current Refrigerant discharge temperature C Ref suction gas temperatu...

Page 74: ...o the high site of the system In anticipation of the maximum quantity of refrig erant that may be released during such a procedure such as disconnecting a hose whilst it is full of liquid refrigerant...

Page 75: ...fic service activities like charging of refrigerant or evacuation of the system If specific valves have to be activated or refrigerant hoses to be connected the letter indicates the posi tion in the d...

Page 76: ...k into any adjacent buildings and that it will not migrate to a location below ground level 6 The hose is made of material that is compatible for use with HC refriger ants and oil 7 A device is used t...

Page 77: ...cific case as an oil separator The vent line is connected at the gas valve of the recovery cylinder The release of refrigerant transfers lubricant from the outdoor unit will now remain in the recover...

Page 78: ...of a minimum of 5 metres actual needed length will be according to installation site condition and an inner diameter of a minimum of 12 mm 13 E L Assure that the refrigerant transfer hose with the co...

Page 79: ...Disconnect the recovery cylinder oil separator from the system and install the vent line to the exhaust port of the vacuum pump The free end of the vent line remains on the stand as described on the p...

Page 80: ...B at the manifold gauge set 27 Operate the vacuum pump for about 20 minutes to remove most of the remaining R 290 refrigerant from the AC system 28 End of the HC refrigerant recovery and venting proce...

Page 81: ...taminants and e g to free blocked components and capillaries from obstructions 5 Purging of air from pipe work before heating and during brazing to pre vent formation of copper oxides on the inner sur...

Page 82: ...r Pressure Cylinder Connection Pressure Regulator Outlet Valve OFDN Transfer Hose Connection Pressure Adjusting Knob Example Connection to pressure regulator Control valve Scale for strength test valu...

Page 83: ...rt to the compa nies repair shop or an on site specific components replacement at a later date an OFDN holding charge should be supplied to the refrigerant circuit This is in general to avoid that air...

Page 84: ...valve 12 N L Remove the OFDN transfer hose from the service port 13 Carefully open the service ports Schrader valve using a valve pin depressor e g small screw driver and blow out the Nitrogen charge...

Page 85: ...mable refrigerants Finally the most important concern handing over a safe and efficient system to the client which has to be hermetically sealed and contains exactly the lowest amount of refrigerant c...

Page 86: ...pressure switch and sensors 4 Corrosion and oil leaks 5 Vibration abnormal noise ice formation 6 Insufficient cooling capacity Having these preconditions of a sealed system in mind in case of malfunct...

Page 87: ...have a pen brush to apply the solution to the suspected point of leakage A small brush is the best cleanest way to work with soapy water on RAC systems Some brands may provide weak soap water solutio...

Page 88: ...ssible to use a reference leak source for calibration 2 Know your gas detector s capabilities and also what it is not capable of de tecting 3 Carbon monoxide and alcohol can affect the sensitivity of...

Page 89: ...to have an intermediate pressure gauge equipped with control valve within the Nitrogen transfer hose N to be separated from the pressure regulator and the OFDN gas cylinder This arrangement will enab...

Page 90: ...azed joints mechani cal unions or piping with the weak soapy water solution and carefully search for bubbles Additionally the amount of discharging Nitrogen will indicate a leak with creating a ventin...

Page 91: ...tivity and for that reason a false alarm is not possible from external gases Since Hydrogen gas has a smaller density than air 14 times lighter it always rises and makes tracing above pipes possible T...

Page 92: ...leakages Provide a filled Forming Gas Cylinder containing the H2 N2 mixture gas equipped with reliable pressure regulator and transfer hose T having a SAE female adapter and with Schrader valve core...

Page 93: ...essure equalisation and 5 bar 72 5 PSI is indicated Watch the gauge for pressure loss 11 Close the pressure regulators outlet valve 12 Carry out the Leak Test and hold the sensor head of the trace gas...

Page 94: ...between pressure regulator and AC outdoor unit for pressure monitoring Do not use the manifold gauge set for strength test pressure monitoring This is a dangerous practice and may cause violation Ens...

Page 95: ...est value of 44 bar 4 4 MPa is reached close the pressure regulators outlet valve and the cylinder valve Listen for any au dible pressure loss and watch and note the pressure at the gauge Wind the pre...

Page 96: ...Outdoor Unit B Manifold Vacuum Pump F Connection Hose valve B Vacuum Pump C Manifold Refrigerant Cylinder G Connection Hose valve C R 290 Cylinder D Manifold Vacuum Gauge I Connection Hose valve D Va...

Page 97: ...C systems compressor can be damaged by operation in a vacuum Favourable equipment specifications for system evacuation are as follows 1 Always use a dual stage vacuum pump equipped with gas ballast va...

Page 98: ...tain the desired vacuum level To ensure that there is no leak left in the system the desired vacuum level should be held without any significant rise during a 30 minutes time span whilst isolated valv...

Page 99: ...trical socket is outside the 2 m safety area This will avoid sparking within the safety area with the operation of the ON OFF switch 10 B C D Open manifold gauge valves vacuum pump refrigerant cylin...

Page 100: ...vacuate and dehydrate the system see pages 96 to 99 8 Recharge the system with the specified amount of 0 2 kg of HC R 290 refrig erant following the given guideline within this chapter 9 A follow up l...

Page 101: ...transferred charged refrigerant amount 12 C Close the refrigerant charging valve of the manifold gauge set 13 Switch on the unit to COOLING MODE bearing in mind that there is a time delay of 3 minutes...

Page 102: ...inimum of 15 Minutes Measure air inlet T1 and air outlet T2 temperature at the indoor unit The tempera ture difference should be at least 8 K Electrical Data Power Supply Voltage Overall Ampere Readin...

Page 103: ...This System is charged with the natural and environmentally protective Refrigerant R 290 Refrigerant Charge in kg 0 20 Lubricant Type Charge Date Signature Service Label to be place at the outdoor uni...

Page 104: ...rdance with national State regulatory requirements When a refrigeration or air conditioning system is to be decommissioned taken out of use and dismantled or sold intact the user who no longer require...

Page 105: ...op eration the complete unit stops opera tion 1 The wiring terminal between outdoor ambient tem perature sensor and controller is loosened or poorly contacted 2 There s short circuit due to the trip...

Page 106: ...GREE Service Manual GWC09AA K5NNA6A Page 106 Trouble Shooting for the Temperature Sensor According to the below provided diagram identify the possible malfunction related to the tempera ture sensor...

Page 107: ...vice Manual GWC09AA K5NNA6A Page 107 Trouble Shooting for the PG motor According to the below provided diagram identify the possible malfunction related to the indoor fan PG motor and H6 error code in...

Page 108: ...GREE Service Manual GWC09AA K5NNA6A Page 108 Trouble Shooting for Jumper Cap Malfunction According to the below provided diagram identify the possible malfunction related to the Jumper Cap...

Page 109: ...ce Manual GWC09AA K5NNA6A Page 109 Trouble Shooting for Freeze Protection According to the below provided diagram identify the possible malfunction related to the freeze pro tection and E2 error code...

Page 110: ...K5NNA6A Page 110 Trouble Shooting for Compressor Low Pressure Protection According to the below provided diagram identify the possible malfunction related to the compressor low pressure protection an...

Page 111: ...GREE Service Manual GWC09AA K5NNA6A Page 111 Trouble Shooting for PCB According to the below provided diagram identify the possible malfunction related to the controller and U8 error code indication...

Page 112: ...GREE Service Manual GWC09AA K5NNA6A Page 112 Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Unit...

Page 113: ...GREE Service Manual GWC09AA K5NNA6A Page 113 Resistance Table of Heat Exchanger Temperature Sensor for Indoor and Outdoor Unit...

Page 114: ...GREE Service Manual GWC09AA K5NNA6A Page 114 Resistance Table of Compressor Discharge Temperature Sen sor Outdoor Unit...

Page 115: ...lectric Company or representatives Other spare parts than OEM parts will violate the Air Conditioner s safety classification and certification status and may keep the unit in a dangerous operational s...

Page 116: ...GREE Service Manual GWC09AA K5NNA6A Page 116 Disassembling Procedures Indoor Unit Be sure to wait 10 minutes or more after turning off all power supplies before starting disassembling works...

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Page 121: ...GREE Service Manual GWC09AA K5NNA6A Page 121 Disassembling Procedures Outdoor Unit Be sure to wait 10 minutes or more after turning off all power supplies before starting disassembling works...

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Page 126: ...GREE Service Manual GWC09AA K5NNA6A Page 126 Exploded View of the GREE HC R 290 AC Split System Indoor Unit...

Page 127: ...GREE Service Manual GWC09AA K5NNA6A Page 127 Part List Indoor Unit...

Page 128: ...GREE Service Manual GWC09AA K5NNA6A Page 128 Exploded View of the GREE HC R 290 AC Split System Outdoor Unit...

Page 129: ...GREE Service Manual GWC09AA K5NNA6A Page 129 Part List Outdoor Unit...

Page 130: ...GREE Service Manual GWC09AA K5NNA6A Page 130 Recommended Equipment and Tools for Hydrocarbon Refrigerants Servicing...

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