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Preface 

For correct installation and operation, please read all instructions carefully. Before reading the 

instructions, please be aware of the following items: 

 

(1)  Instructions for installation and use of this product are provided by the manufacturer. 
(2)  Installation must be performed in accordance with the requirements of NEC and CEC by authorized personnel   

only. 

(3)  For the safe operation of this unit, please read and follow the instructions carefully. 
(4)  During operation, total capacity of indoor units should not exceed the total capacity of outdoor units. Otherwise, 

poor effect of cooling or heating may result. 

(5)  Direct operators or maintainers should well keep this manual. 
(6)  If this unit fails to operate normally, please contact our service center as soon as possible and provide the 

following information: 
1)  Content on the name plate (model number ,cooling capacity, production code, ex-factory date). 
2)  Malfunction details (before and after the malfunction occurs).

 

(7)  Each unit has been strictly tested and proved to be qualified before ex-factory. In order to prevent units from being 

damaged or operating normally because of improper disassembly, please do not disassemble the unit by yourself. 
If you need to disassemble and check units, please contact our service center. We will send specialists to guide 
the disassembly. 

(8)  All graphics in this manual is only for your reference. For sales or production reasons, these graphics are subject 

to change by manufacturer without prior notice. 

(9)  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 a person responsible for their safety. Children should be supervised to ensure 
that they do not play with the appliance. 

User Notice 

 

DISPOSAL: Do not dispose this product as unsorted municipal waste. Collection of 
such waste separately for special treatment is necessary.   

 

Exception Clauses

 

Manufacturer will bear no responsibilities when personal injury  or property loss is caused by the following 

reasons: 

(1)  Damage the product due to improper use or misuse of the product. 
(2)  Alter, change, maintain or use the product with other equipment without abiding by the instruction manual of 

manufacturer. 

(3)  After verification, the defect of product is directly caused by corrosive gas. 
(4)  After verification, defects are due to improper operation during transportation of product. 
(5)  Operate, repair, maintain the unit without abiding by instruction manual or related regulations. 
(6)  After verification, the problem or dispute is caused by the quality specification or performance of parts and 

components that produced by other manufacturers. 

(7)  The damage is caused by natural calamities, bad using environment or force majeure. 

Summary of Contents for GMV-36WL/C-T

Page 1: ...Owner s Manual Original Instructions Commercial Air Conditioners DC Inverter Multi VRF System Applicable Models GMV 60WL C T U GMV 48WL C T U GMV 36WL C T U...

Page 2: ...All graphics in this manual is only for your reference For sales or production reasons these graphics are subject to change by manufacturer without prior notice 9 This appliance is not intended for u...

Page 3: ...Hole 5 4 2 Connection Pipe 6 4 3 Installation of Connection Pipe 10 4 4 Disassembly of Compressor Feet 14 4 5 Vacuum Pumping Refrigerant Adding 15 4 6 Electric Wiring 17 5 Check Items after Installati...

Page 4: ...ephone line 6 Be sure to use special accessories and parts for installation to prevent water leakage electric shock and fire hazard etc 7 If refrigerant leakage happens please ventilate the room immed...

Page 5: ...tely and then contact Gree appointed service center If those abnormal circumstances still exit the unit may be damaged and it may lead to electric shock or fire hazard 27 Do not repair the unit by you...

Page 6: ...s of DC Inverter Multi VRF System can be connected to various indoor units When any one of the indoor units receives operating command outdoor unit will start operation as per required capacity When a...

Page 7: ...for heat exchange and maintenance so that unit can operate reliably with good ventilation 7 Make sure the location has space for heat exchange and maintenance so that unit can operate reliably with go...

Page 8: ...r piping work requirements R410A Refrigerant System Outer diameter mm inch Wall thickness mm inch 6 35 1 4 0 8 1 32 9 52 3 8 0 8 1 32 12 7 1 2 0 8 1 32 15 9 5 8 1 0 1 25 19 05 3 4 1 0 1 25 4 Installat...

Page 9: ...inch Model A B C D E GMV 36WL C T U GMV 48WL C T U 900 35 3 8 340 13 3 8 1345 53 572 22 1 2 378 15 GMV 60WL C T U 940 37 320 12 9 16 1430 56 1 4 632 24 7 8 350 14 7 8 4 2 Connection Pipe 4 2 1 Schemat...

Page 10: ...and Height Difference of Connection Pipe Piping parameters of GMV 36WL C T U GMV 48WL C T U GMV 60WL C T U Allowable value Fitting pipe m feet Total length actual length of fitting pipe 300 984 L1 L2...

Page 11: ...le Pipe dimension Gas pipe mm inch Liquid pipe mm inch GMV 36WL C T U 15 9 5 8 9 52 3 8 GMV 48WL C T U 15 9 5 8 9 52 3 8 GMV 60WL C T U 19 05 3 4 9 52 3 8 4 2 4 Selection of Indoor Branches Select ind...

Page 12: ...otal capacity of downstream indoor units C Btu h Pipe mm inch Liquid pipe mm inch C 19000 12 7 1 2 6 35 1 4 19000 C 48500 15 9 5 8 9 52 3 8 48500 C 76400 19 05 3 4 9 52 3 8 4 2 6 Dimension of Pipe bet...

Page 13: ...le is not allowed 3 When laying the pipe be careful not to distort it Radius of bending parts should be over 200mm 8inch Note that pipes cannot be repeatedly bent or stretched otherwise the material w...

Page 14: ...of nut will get damaged if the flared nut is twisted forcibly 3 Use torque wrench to twist on the flared nut tightly until the wrench gives out a click sound Hold the handle of wrench and make it at r...

Page 15: ...ht or rear side Fig 4 13 2 Pipe connection for GMV 60WL C T U As shown in Fig 4 14 and Fig 4 15 open the outermost soundproof cotton and place a fire barrier between compressor and straight pipe Use a...

Page 16: ...d remove burrs as well See Fig 4 17 3 Y type branch must be installed vertically or horizontally Fig 4 17 Branch shall be isolated by insulating material that can bear 120 C 248 F or even higher tempe...

Page 17: ...perature For heat pump unit liquid pipe should bear 70 C 158 F or above and gas pipe should bear 120 C 248 F or above For cooling only unit both liquid pipe and gas pipe should bear 70 C 158 F or abov...

Page 18: ...ds to be charged with additional refrigerant 2 Confirm whether outdoor liquid and gas valves are closed 3 Use vacuum pump to withdraw the air inside indoor unit and connection pipe from the outdoor va...

Page 19: ...Quantity of IDU 2 0 3 kg 10 58oz First confirm that there is no leakage from the system When compressor is not working charge additional R410A with specific amount to the unit through the filling ope...

Page 20: ...function and thermal trip function so that system can be protected from short circuit and overload 6 Air conditioner belongs to class I electrical appliance so it must be securely grounded 7 The yell...

Page 21: ...ot being supplied to the indoor unit and outdoor unit 2 Match the terminal block numbers and connection cord colors with those of the indoor unit side Erroneous wiring may cause burning of the electri...

Page 22: ...condition changes please adjust the specification according to national standard 3 Specification of circuit breaker is based on the working condition where ambient temperature of circuit breaker is 40...

Page 23: ...DC Inverter Multi VRF System 20 Fig 4 26 Fig 4 27...

Page 24: ...placing the main board of outdoor unit it is necessary to perform test operation and debugging Otherwise unit won t be able to work 2 Test operation and debugging must be performed by professional tec...

Page 25: ...mmunication wire of IDU is correctly connected After the check connect power and start debugging from progress 01 If the number is then correct press main board s SW3 button to confirm Then the displa...

Page 26: ...ts 08_ Confirm preheated compressor 08 U0 Display circularly Preheat time for compressor is less than 8 hours Display will be as in the left until the preheat time reaches 8 hours Press main board s S...

Page 27: ...in this process through the L VALVE 15_ Cooling debugging 15 AC Display circularly Debugging for cooling mode If no malfunction occurs for 50min when compressor is running then the system is certifie...

Page 28: ...ient temp is 25 35 C 77 95 F in cool mode system s high pressure value will be within 44 53 C 111 127 F In heat mode if ambient temp is above 5 C 23 F system s high pressure value is within 40 52 C 10...

Page 29: ...or EXV varies within 40 480PLS 15 Communication parameters Communication data Number of IDUs detected by software is the same with the actual number No communication error 16 Drainage system Indoor un...

Page 30: ...locked and dirty Clean the filter If problem cannot be solved after checking the above items please contact Gree service center and describe the cases and models Following circumstances are not malfun...

Page 31: ...rossing malfunction of PG motor dU Malfunction of drainage pipe temperature sensor of generator LU Indoor unit s branch is not inconsistent for one to more unit of heat recovery system db Debugging st...

Page 32: ...of outlet tube temperature sensor of condenser PA Malfunction of drive storage chip of compressor bJ High pressure sensor and low pressure sensor are connected reversely PH High voltage protection of...

Page 33: ...en main control and DC DC controller U6 Alarm because valve is abnormal C2 Communication malfunction between main control and inverter compressor driver U7 Power grid DRED0 response protection C3 Comm...

Page 34: ...connection pipe of ODU An Child lock status Ay Shielding status 8 Maintenance and Care Regular check maintenance and care can extend unit s service life Please have specialized person in charge of the...

Page 35: ...ix oxygen C2H2 or other dangerous gas into the refrigerant circuit Otherwise it may lead to danger Use nitrogen or refrigerant to conduct the tests 9 After sales Service If there s quality defect or o...

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