Gree VRF Fresh Air Series Owner'S Manual Download Page 1

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Thank you for choosing Air Conditioners, please read this owner’s manual carefully before

operation and retain it for future reference.

GREE reserves the right to interpret this manual which will be subject to any change due to

product improvement without further notice.

GREE Electric Appliances, Inc. of Zhuhai reserves the final right to interpret this manual.

VRF Fresh Air Series Indoor Unit

Models:
GMV-NX140P/A(X1.2)-K
GMV-NX224P/A(X2.0)-M
GMV-NX280P/A(X2.5)-M
GMV-NX280P/A(X3.0)-M
GMV-NX450P/A(X4.0)-M

Air Conditioners

Owner's Manual

Summary of Contents for VRF Fresh Air Series

Page 1: ...t to interpret this manual which will be subject to any change due to product improvement without further notice GREE Electric Appliances Inc of Zhuhai reserves the final right to interpret this manual VRF Fresh Air Series Indoor Unit Models GMV NX140P A X1 2 K GMV NX224P A X2 0 M GMV NX280P A X2 5 M GMV NX280P A X3 0 M GMV NX450P A X4 0 M Air Conditioners Owner s Manual ...

Page 2: ...tact our service center We will send specialists to guide the disassembly 7 All graphics in this manual are only for your reference For sales or production reasons these graphics are subject to change by manufacturer without prior notice User Notice This appliance can be used by children aged from 8 years and above and persons with reduced physical sensory or mental capabilities or lack of experie...

Page 3: ...ion 10 4 3 Installation and Test of Drain Pipe 10 4 4 Installation of Air Duct 13 4 5 Installation of Wired Controller 17 5 Wiring Work 17 5 1 Connection of Wire and Patch Board Terminal 17 5 2 Power Cord Connection 18 5 3 Connection of Communication Line of IDU and ODU 18 5 4 Connect Communication Wire of Wired Controller 19 5 5 Illuminate for Connection of Wired Controller and Indoor Units Netwo...

Page 4: ... specified on the nameplate And also take care of the power safety Installation should be conducted by dealer or qualified personnel Please do not attempt to install the unit by yourself Improper handling may result in water leakage electric shock or fire disaster etc Be sure to use the exclusive accessory and part to prevent the water leakage electric shock and fire accidents Before using the uni...

Page 5: ...ck or injury may happen Do not expose the unit to the moist or corrosive circumstances Volatile liquid such as diluent or gas will damage the unit appearance Only use soft cloth with a little neutral detergent to clean the outer casing of unit Open the door and window and keep good ventilation in the room to avoid oxygen deficit when the gas oil supplied heating equipment is used Turn off the unit...

Page 6: ...thin 50 100 of the capacity of outdoor unit among which the total capacity of connected fresh air indoor units cannot exceed 30 of the capacity of outdoor unit 2 Fresh air indoor units can operate independently The total capacity of connected fresh air indoor units cannot exceed 50 100 of the capacity of outdoor unit GMV NX224P A X2 0 M GMV NX280P A X2 5 M Note When fresh air series indoor units a...

Page 7: ...r Ambient Dry Bulb C Working Temperature Range 7 45 Notes The working temperature range executes relevant requirements in national standard GB T 25128 2010 The ex factory set temperature is 18 C in cooling mode and 22 C in heating mode If the user needs to change the temperature setting please contact after sales service personnel 2 4 Unit Functions Unit Functions Wired Controller XK45 Standard ac...

Page 8: ...e Sub assy 1 Set Connect drain pipe 4 Union Nut Sub assy 1 Set Connect exit pipe 5 Nut with Washer M10X8 4 PC Hang indoor unit 6 Nut M10 Type 1 Hex Nut M10X8 4 4 PC Hang indoor unit 7 Washer 10 Spring Washer M10X2 6 4 PC Hang indoor unit 8 Insulating Jacket of Header 1 PC Wrap the joint of header 9 Insulating Jacket of Liquid in Pipe 1 PC Wrap the joint of liquid in pipe 10 Sponge of Drain Pipe 2 ...

Page 9: ...Return Air pipe Work area Air supply pipe Return Air pipe Ceiling 95 Notes Installation of the unit must be in accordance with National Electric Codes and local safety regulations Improper installation will affect unit s performance so do not install the unit by yourself Please contact local dealer to arrange professional technicians for the installation Do not connect power until all installation...

Page 10: ...re mm2 Minimum Sectional Area of Power Cord mm2 GMV NX140P A X1 2 K 220 240V 50Hz 6 1 0 1 0 GMV NX224P A X2 0 M 380 415V 3N 50Hz 6 1 0 1 0 GMV NX280P A X2 5 M 380 415V 3N 50Hz 6 1 0 1 0 GMV NX280P A X3 0 M 380 415V 3N 50Hz 6 1 0 1 0 GMV NX450P A X4 0 M 380 415V 3N 50Hz 6 1 0 1 0 Notes The size of circuit breaker and power cord in above sheet is selected based on the max power max current of unit A...

Page 11: ... hanging the unit For the convenience of maintenance the service port should be on one side of the electric box and below unit s lower level GMV NX140P A X1 2 K 1155 207 420 250 1278 1382 Fig 4 1 1 GMV NX224P A X2 0 M GMV NX280P A X2 5 M GMV NX280P A X3 0 M Air outlet Air return 1194 1194 1560 910 292 342 Fig 4 1 1 GMV NX450P A X4 0 M Air outlet 1040 868 1780 347 555 1450 Air return Fig 4 1 1 ...

Page 12: ...ole according to the hole site 60 70mm Fig 4 1 4 Fig 4 1 5 2 Insert the expansion bolt M10 into the hole and then drive the iron nail into the bolt as shown in Fig 4 1 6 Note The length of bolt can be based on the height of room Bolt should be prepared by the user Expansion bolt Fig 4 1 6 4 1 3 Lift the Unit Lift up the unit to the ceiling and secure it on the bolt Use specialized nut to secure th...

Page 13: ...r unit wrench torque wrench flaring nut pipe joint Torque for tightening nut Pipe diameter mm Torque N m Ф6 35 15 30 Ф9 52 35 40 Ф12 7 45 50 Ф15 9 60 65 Fig 4 2 3 The pipe should not be bent too much or it may crack Use a pipe bender when bending the pipe 4 Use a sponge to wrap the uninsulated connection pipe and the joint Then tie it tight with a plastic tape 4 3 Installation and Test of Drain Pi...

Page 14: ...nce between screw nut and hose smaller than 4mm metal clamp accessory drain hose accessory 3 Use sealing plate to make the pipe clamp and hose insulated as shown in Fig 4 3 3 metal clamp accessory thermal sponge accessory 1 2 3 4mm 1 2 Fig 4 3 2 Fig 4 3 3 4 When connecting several drain pipes follow the instruction as indicated in Fig 4 3 4 Choose the drain collecting pipe that matches with unit c...

Page 15: ...pipe connection Fig 4 3 7 Fig 4 3 8 Fig 4 3 9 10 The installation height of drain lifting pipe should be less than 850mm It is suggested that the drain lifting pipe should be 1 2 angle downward to drain direction If the drain lifting pipe shall form a right angle with the unit the lifting height must be less than 800mm Drain Hose Accessory Clamp Accessory Drain Lifting Pipe Roof Hanger 1000 1500mm...

Page 16: ...erate automatically 2 If electrical wiring of unit hasn t been done please open the electric box cover Connect one phase power cord 220V 50Hz at L1 N or L N of wiring board Connect the grounding wire securely and then put on the electric box cover after making sure it is connected securely About 60s after connecting power supply indoor unit will report C0 communication malfunction In this case the...

Page 17: ...4 6 8 3 7 5 1 2 3 Return air Supply air Return air Fig 4 4 1 No Name No Name 1 Hanger Rod 5 Static Pressure Box 2 Return Air Duct 6 Filter Screen 3 Canvas Duct 7 Main Supply Air Duct 4 Return Air Inlet 8 Supply Air Outlet 2 Installation of Circular Duct 1 2 4 3 5 6 7 8 9 Fig 4 4 2 No Name No Name 1 Return Air Duct 6 Transition Pipe 2 Canvas Duct 7 Supply Air Duct 3 Return Air Blinds 8 Diffuser 4 H...

Page 18: ... 2 The following figure is applicable for the models GMV NX224P A X2 0 M GMV NX280P A X2 5 M GMV NX280P A X3 0 M Size of air outlet opening 292 1194 Fig 4 4 5 Size of air return opening 342 1194 Fig 4 4 6 3 The following figure is applicable for the models GMV NX450P A X4 0 M Size of air outlet opening 868 347 Fig 4 4 7 ...

Page 19: ...turn duct to the air return opening of indoor unit The other end of air return duct connects with the air return louver In order to adjust the height conveniently you can make a folded canvas duct and have it strengthened by 8 iron wire 4 Air return from the bottom will produce more noise than air return from the back So we suggest you to add a noise damper and static pressure case to lower noise ...

Page 20: ... hazard Keep the wires away from refrigerant pipe compressor and fan Do not alter the inner wires of air conditioner Manufacturer does not assume responsibility for damage or abnormal operation due to this reason If the unit is installed in places with strong electromagnetic interference it s recommended to use twin twisted shield wire During wire connection please pay attention that the metal shi...

Page 21: ...mmunication XT2 Wiring board of power XT1 Wiring board of communication XT2 Fig 5 2 Remark The maximum number of indoor units that can be connected depends on the capacity of outdoor unit For specific details please refer to the capacity configuration part 1 For air conditioner that uses single phase power 1 Remove the cover of electric box of indoor unit 2 Lead the power cord across the rubber ri...

Page 22: ...1 Open electric box cover of indoor unit 2 Let the communication wire go through the rubber ring 3 Connect the communication wire to terminal H1 and H2 of indoor 4 bit wiring board 4 Fix the communication wire with wire clip on the electric box 5 Wiring instructions of remote receiving light board and wired controller 1 Fig 5 4 1 shows the installation of wired controller Standard H1 H2 DSP1 DSP2 ...

Page 23: ...ts at the same time the indoor units must be of the same model Fresh air indoor unit cannot share the same wired controller with other types of VRF indoor unit When two wired controllers are controlling the indoor units you need to set an address for each wired controller Address No 1 refers to master wired controller while address No 2 refers to sub master wired controller They should not share t...

Page 24: ...Multi Variable Air Conditioners Duct Type Indoor Unit 21 D1 D2 H1 H2 D1 D2 H1 H2 D1 D2 H1 H2 D1 D2 H1 H2 D1 D2 H1 H2 D1 D2 H1 H2 D1 D2 H1 H2 D1 D2 H1 H2 D1 D2 D1 D2 Fig 5 5 ...

Page 25: ...a vacuum cleaner to remove dust If the filters are dirty wash them with warm water and mild detergent and dry the filters in the shade 2 If the unit used in the environment with much dust please clean it regularly usually once every two weeks 6 2 Maintenance before the Seasonal Use 1 Check if the air inlet and air outlet of indoor and outdoor unit are blocked 2 Check if securely grounded 3 Check i...

Page 26: ...ase check the following table first before asking for service Phenomenon Troubleshooting The unit can t start Power supply is not connected Circuit breaker tripping caused by leakage of electricity Input voltage is too low Operation button is off Error of control loop The unit stops after running for a while There is obstacle in front of condenser Error of control loop Perform cooling when outdoor...

Page 27: ...GREE ELECTRIC APPLIANCES INC OF ZHUHAI 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 ...

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