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Gree GMV-Q1010WM/B-X Owner'S Manual Download Page 6

 

Heat Recovery DC Inverter Multi VRF Unit 

3 

2 Product Introduction 

Gree  Modular  Heat  Recovery  Multi  VRF  System  adopts  inverter  compressor  technology.  By 

changing  the  displacement  of  compressor,  stepless  capacity  regulation  can  be  realized .  Various 

product lineups are provided with capacity  range  from  22.4kW to 180kW, and indoor units within a 

same  system  can  operate  in  cooling  or  heating  mode  in  the  meantime.  This  system  can  be  widely 

used  in  commercial  and  working  area  and  is  especially  applicable  to  places  with  big  load  change. 

Gree commercial multi VRF system is absolutely your best choice.   

2.1 Names of Main Parts 

 

Figure 1 

No, 

①

 

②

 

③

 

④

 

⑤

 

Name 

Fan motor, motor 

Electric box 

assembly 

Valve interface 

Power cord 

through-hole 

Communication wire 

through-hole 

 

2.2 Combinations of Outdoor Units 

2.2.2 GMV5 HR DC Inverter Heat Recovery Multi VRF Units 

Model 

(Combined) 

GMV-Q504WM/B-X 

GMV-Q560WM/B-X 

GMV-Q615WM/B-X 

GMV-Q680WM/B-X 

Model (Single) 

GMV-Q224WM/B-X 

+ GMV-Q280WM/B-X 

GMV-Q280WM/B-X 

+ GMV-Q280WM/B-X 

GMV-Q280WM/B-X 

+ GMV-Q335WM/B-X 

GMV-Q280WM/B-X 

+ GMV-Q400WM/B-X 

 

Model 

(Combined) 

GMV-Q730WM/B-X 

GMV-Q785WM/B-X 

GMV-Q850WM/B-X 

GMV-Q900WM/B-X 

Model (Single) 

GMV-Q280WM/B-X 

+ GMV-Q450WM/B-X 

GMV-Q335WM/B-X 

+ GMV-Q450WM/B-X 

GMV-Q400WM/B-X 

+ GMV-Q450WM/B-X 

GMV-Q450WM/B-X 

+ GMV-Q450WM/B-X 

Summary of Contents for GMV-Q1010WM/B-X

Page 1: ...and retain it for future reference If you have lost the Owner s Manual please contact the local agent or visit www gree com or send email to global gree com cn or electronic version 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 m...

Page 2: ...n this manual are only for reference Manufacturer reserves the right for changes in terms of sales or production at any time and without prior notice 7 Under the standby status the unit will consume a little power for ensuring reliability of the complete unit maintaining normal communication and preheating refrigerant When the unit won t be used for a long time please cut off the power of the comp...

Page 3: ...ITS 12 4 3 INSTALLATION OF REFRIGERANT CONNECTION PIPE 21 4 4 VACUUM PUMPING REFRIGERANT ADDING 24 4 5 ELECTRIC WIRING 26 4 6 SYSTEM COMMUNICATION FEATURES 32 4 7 CONNECTION METHODS AND PROCEDURE OF COMMUNICATION SYSTEM 38 4 8 DIAGRAM OF EXTERNAL ELECTRIC WIRING 45 5 CHECK ITEMS AFTER INSTALLATION AND TEST OPERATION 47 5 1 CHECK ITEMS AFTER INSTALLATION 47 5 2 TRIAL OPERATION 47 6 COMMON MALFUNCTI...

Page 4: ... be used Otherwise it may result in water leakage electric shock or fire hazard R410A refrigerant can produce poisonous gas once it meets fire so please ventilate the room immediately if refrigerant leaks out during installation Diameter of power cord must be large enough Damaged power cord or connecting wire must be replaced by specialized electric cable After the power cord is connected please i...

Page 5: ...mpressor Volatile liquid like thinner or gasoline will damage the appearance of air conditioner Please use soft dry cloth and wet cloth with mild detergent to clean unit s outer case Under cool mode do not set the indoor temperature too low Keep the difference between indoor temp and outdoor temp within 5 If abnormal condition occurs e g unpleasant smell please turn off the unit at once and discon...

Page 6: ...ange Gree commercial multi VRF system is absolutely your best choice 2 1 Names of Main Parts Figure 1 No Name Fan motor motor Electric box assembly Valve interface Power cord through hole Communication wire through hole 2 2 Combinations of Outdoor Units 2 2 2 GMV5 HR DC Inverter Heat Recovery Multi VRF Units Model Combined GMV Q504WM B X GMV Q560WM B X GMV Q615WM B X GMV Q680WM B X Model Single GM...

Page 7: ...GMV Q280WM B X GMV Q450WM B X GMV Q450WM B X GMV Q280WM B X GMV Q335WM B X GMV Q450WM B X GMV Q450WM B X GMV Q280WM B X GMV Q400WM B X GMV Q450WM B X GMV Q450WM B X Model Combined GMV Q1630WM B X GMV Q1685WM B X GMV Q1750WM B X GMV Q1800WM B X Model Single GMV Q280WM B X GMV Q450WM B X GMV Q450WM B X GMV Q450WM B X GMV Q335WM B X GMV Q450WM B X GMV Q450WM B X GMV Q450WM B X GMV Q400WM B X GMV Q450...

Page 8: ...outdoor unit Figure 2 3 Outdoor units of Modular DC Inverter Heat Recovery System can be connected to multi VRF indoor units including cassette type unit one way cassette type unit wall mounted unit and duct type unit as shown in figure 2 When any one of the indoor units receives operating command outdoor unit will start operation as per required capacity When all indoor units stop outdoor unit wi...

Page 9: ...2 Installation Site Never do this This symbol indicates the possibility of death or serious injury Always do this This symbol indicates the possibility of personal injury or property damage Select a location which is strong enough to hold unit s weight so that unit can stand still and erect Make sure the unit is not exposed to sun and rain And the location can resist dust typhoon and earthquake Pl...

Page 10: ...walls please refer to the following figures for space dimension 3 2 1 1 Installation space requirement for a single module Unit mm Figure 3 3 2 1 2 Installation space requirement for twin modules Unit mm Figure 4 3 2 1 3 Installation space requirement for three modules Unit mm Figure 5 ...

Page 11: ... top and the wall at least 3000mm or above When the unit is located in an open space with no obstruction from front back left and right keep the distance between the unit top and wall at least 1500mm or above See Fig 7 When the distance is limited within 1500mm or the unit is not set in an open space air return pipe is required to be installed in order to keep good ventilation See Fig 8 Unit mm Fi...

Page 12: ...eep good ventilation make sure there is no obstruction above the units When units are located in a semi open space front and left right sides are open install units as per the same or opposite direction Unit mm Figure 9 Unit mm Figure 10 3 2 4 Take seasonal wind into consideration when installing outdoor units Figure 11 ...

Page 13: ...r connection pipe requirement R410A Refrigeratn System Outer diameter mm inch Wall thickness mm Type Φ6 35 1 4 0 8 0 Φ9 52 3 8 0 8 0 Φ12 70 1 2 0 8 0 Φ15 9 5 8 1 0 0 Φ19 05 3 4 1 0 0 Φ22 2 7 8 1 2 1 2H Φ25 40 1 1 1 2 1 2H Φ28 60 9 8 1 2 1 2H Φ31 80 5 4 1 3 1 2H Φ34 90 11 8 1 3 1 2H Φ38 10 12 8 1 5 1 2H Φ41 30 13 8 1 5 1 2H Φ44 5 7 4 1 5 1 2H Φ51 4 7 4 1 5 1 2H Φ54 1 17 8 1 5 1 2H ...

Page 14: ...rence Please refer to actual products Unspecified dimensions are all in mm 4 1 Dimension of Outdoor Unit and Mounting Hole Outline and installation dimension of GMV Q224WM B X GMV Q280WM B X Unit mm Figure 13 Outline and installation dimension of GMV Q335WM B X GMV Q400WM B X GMV Q450WM B X Unit mm Figure 14 ...

Page 15: ...erter Multi VRF Unit 12 4 2 Refrigerant Connection Pipe of Indoor and Outdoor Units 4 2 1 Schematic diagram of piping connection Figure 15 4 2 2 Schematic diagram of piping sequence GMV Q224WM B X GMV Q280WM B X Figure 16 ...

Page 16: ...en indoor and outdoor units Y type branch joint is adopted to connect indoor and outdoor units Connection method is shown below Note Length of one Y type branch is equivalent to 0 5m Figure 18 Distance from the first branch to the farthest indoor unit Distance from the first branch to the nearest indoor unit Length of indoor branch is equivalent to 0 5m ...

Page 17: ...between the pipe length from the first indoor branch to the farthest indoor unit and the pipe length from the first indoor branch to the nearest indoor unit L12 L11 40m 2 When the maximum length of the main pipe from outdoor unit to the first indoor branch 90m then adjust the size of high pressure gas pipe gas pipe and liquid pipe of main pipe according to the following table Outdoor model Diamete...

Page 18: ...e pipe diameter Φ25 4 Φ41 3 GMV Q1580WM B X No need to enlarge pipe diameter Φ25 4 Φ41 3 GMV Q1630WM B X No need to enlarge pipe diameter Φ25 4 Φ41 3 GMV Q1685WM B X No need to enlarge pipe diameter Φ25 4 Φ41 3 GMV Q1750WM B X No need to enlarge pipe diameter Φ25 4 Φ41 3 GMV Q1800WM B X No need to enlarge pipe diameter Φ25 4 Φ41 3 3 If the length between indoor unit and its nearest branch is above...

Page 19: ... distance between outdoor units exceeds 2m U type oil trap should be added at low pressure gas pipe A B 10m 4 2 5 Size requirement for branch pipe and piping main pipe 4 2 5 1 Connection sketch map of single module system Figure 21 Connection sketch map of multi module system ...

Page 20: ... Φ22 2 Φ9 52 Φ19 05 GMV Q335WM B X Φ25 4 Φ12 7 Φ19 05 GMV Q400WM B X Φ25 4 Φ12 7 Φ22 2 GMV Q450WM B X Φ28 6 Φ12 7 Φ22 2 4 2 5 2 For multi module system select appropriate branch M1 M2 M3 connected to outdoor module as per the pipe size of basic outdoor module Pipe size of basic outdoor module is shown as follows Pipe between module and outdoor branch M1 M2 M3 Basic module Size of the pipe between ...

Page 21: ...Φ25 4 96 0 Q 68 0 Φ31 8 Φ19 05 Φ28 6 135 0 Q 96 0 Φ38 1 Φ19 05 Φ31 8 Q 135 0 Φ44 5 Φ22 2 Φ38 1 4 2 5 4 Size of connection pipe L between the terminal outdoor branch and the first indoor branch Connection pipe L between outdoor unit and the first indoor branch Basic module single module system Size of connection between outdoor unit and the first indoor branch Low pressure gas pipe mm Liquid pipe m...

Page 22: ... Please refer to the following table Model selection for branch A1 A2 of mode exchanger R410A refrigerant system Total Capacity of the Downstream Indoor Unit X Model Y Type Branch Pipe X 56 FQ01Na A 56 X 220 FQ02Na A 220 X 300 FQ03Na A 300 X 680 FQ04Na A 680 X 960 FQ05Na A 960 X 1350 FQ06Na A 1350 X FQ07Na A 4 2 5 6 Piping size among upstream branches of heat pump mode exchanger n1 n2 n3 n4 Piping...

Page 23: ...oor unit e f i j Size of connection pipe between indoor branch and indoor unit should be consistent with the connection pipe of indoor unit Piping between indoor branch and indoor unit e f i j Rated capacity of indoor units Size of connection pipe between indoor branch and indoor unit Gas pipe mm Liquid pipe mm C 2 8 Φ9 52 Φ6 35 2 8 C 5 0 Φ12 7 Φ6 35 5 0 C 14 0 Φ15 9 Φ9 52 14 0 C 16 0 Φ19 05 Φ9 52...

Page 24: ...ng between indoor branch and indoor unit k Rated capacity of indoor units Size of connection pipe between indoor branch and indoor unit Gas pipe mm Liquid pipe mm 14 2 c 22 4 Φ19 05 Φ9 52 22 4 c 28 0 Φ22 2 Φ9 52 4 3 Installation of Refrigerant Connection Pipe 4 3 1 Precautions of connection pipe installation 1 Please comply with the following rules during pipe connection Connection pipe should be ...

Page 25: ...oam to wrap the uninsulated connection pipe and joints and then tie them up with plastic tape 4 Connection pipe should be supported by a bearer rather than the unit 5 The bend angle of connection pipe should not be too small otherwise connection pipe might be cracked Please use a pipe bender to bend the pipe 6 When connecting indoor unit with connection pipe do not pull the big and small joints of...

Page 26: ...ection For FQ04 branch leave at least 800mm straight pipe section 3 Thermal insulation for pipeline 1 To avoid condensate or water leak on the connection pipe the gas pipe and liquid pipe must be wrapped with thermal insulating material and tied by adhesive tape 2 Thermal insulating material shall be able to bear the pipe temperature For heat pump unit liquid pipe should bear 70 or above and gas p...

Page 27: ...r 1m 2 Protection against accidental damage should be made for outdoor pipeline If pipeline exceeds 1m a pinch plate should be added for protection 4 4 Vacuum Pumping Refrigerant Adding 4 4 1 Vacuum pumping 1 Before vacuum pumping make sure that outdoor unit s liquid valve high pressure gas valve and low pressure gas valve are completely closed Use vacuum pump to extract air inside indoor unit and...

Page 28: ...sets 3 5 3 5 4 5 5 Note Indoor outdoor unit rated capacity allocation ratio C Sum of rated cooling capacity of indoor unit Sum of rated cooling capacity of outdoor unit If all of the indoor units are GMV NX series fresh air indoor units the quantity of refrigerant added to each module is 0kg For example Example 1 The outdoor units are composed of 3 modules GMV Q280WM B X GMV Q400WM B X GMV Q450WM ...

Page 29: ...d must be large enough If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard All electrical installation must be performed by qualified personnel in accordance with local laws regulations and the corresponding user manual Units must be properly grounded and follow relevant requirements of the sales coun...

Page 30: ...15V 3N 50 60Hz 32 32 4 0 4 0 5 GMV Q400WM B X GMV Q400WM B X 380 415V 3N 50 60Hz 40 40 6 0 6 0 5 GMV Q450WM B X GMV Q450WM B X 380 415V 3N 50 60Hz 40 40 6 0 6 0 5 GMV Q504WM B X GMV Q224WM B X GMV Q280WM B X 380 415V 3N 50 60Hz 40 20 25 2 5 4 0 2 5 5 4 0 5 GMV Q560WM B X GMV Q280WM B X GMV Q280WM B X 380 415V 3N 50 60Hz 50 25 25 4 0 4 0 4 0 5 4 0 5 GMV Q615WM B X GMV Q280WM B X GMV Q335WM B X 380 ...

Page 31: ... 380 415V 3N 50 60Hz 100 25 40 40 4 0 6 0 6 0 4 0 5 6 0 5 6 0 5 GMV Q1180WM B X GMV Q280WM B X GMV Q450WM B X GMV Q450WM B X 380 415V 3N 50 60Hz 100 25 40 40 4 0 6 0 6 0 4 0 5 6 0 5 6 0 5 GMV Q1235WM B X GMV Q400WM B X GMV Q400WM B X GMV Q450WM B X 380 415V 3N 50 60Hz 125 40 40 40 6 0 6 0 6 0 6 0 5 6 0 5 6 0 5 GMV Q1300WM B X GMV Q400WM B X GMV Q450WM B X GMV Q450WM B X 380 415V 3N 50 60Hz 125 40 ...

Page 32: ... 6 0 5 GMV Q1750WM B X GMV Q400WM B X GMV Q450WM B X GMV Q450WM B X GMV Q450WM B X 380 415V 3N 50 60Hz 160 40 40 40 40 6 0 6 0 6 0 6 0 6 0 5 6 0 5 6 0 5 6 0 5 GMV Q1800WM B X GMV Q450WM B X GMV Q450WM B X GMV Q450WM B X GMV Q450WM B X 380 415V 3N 50 60Hz 160 40 40 40 40 6 0 6 0 6 0 6 0 6 0 5 6 0 5 6 0 5 6 0 5 Please refer to the following table for circuit breaker and air switch of indoor units Ca...

Page 33: ...type 6 1 0 1 0 56 63 71 80 cassette type 10 1 0 1 0 90 112 125 140 cassette type 6 1 0 1 0 Note Selection of circuit breaker and power cord in the above table is based upon unit s maximum power maximum current Specification of power cord is based on the working condition where ambient temperature is 40 and multi core copper cable working temperature is 90 e g power cable with YJV cross linked copp...

Page 34: ...ng 1 Water pipe 2 Gas pipe 3 Drain pipe 4 Other places that are deemed as not reliable by professional personnel Power cord and communication wire cannot be twisted together They shall be laid separately in a distance of more than 20cm otherwise units communication may not work properly Procedure and figure of power cord connection 1 Knock off the wire through hole used for leading the external po...

Page 35: ... units includes 1 Communication among outdoor basic modules 2 Communication between outdoor unit and mode exchanger 3 Communication among mode exchangers 4 Communication between mode exchanger and indoor unit 5 Communication among indoor units 6 Communication between indoor unit and wired controller 7 Connection between indoor unit and receiver board ...

Page 36: ...ts and communication among indoor units 4 6 3 Material selection and connection method for heat recovery communication 4 6 3 1 Material selection Note If unit is installed in a place with strong electromagnetic interference shielded wire must be used as the communication wire between indoor unit and wired controller and shielded twisted pair line as the communication wire between indoor unit and a...

Page 37: ...s Figure 32 2 Selection of communication wire between outdoor unit and mode exchanger among mode exchangers and mode exchanger and indoor unit respectively Type of wire Total length of communication wire between indoor unit and another indoor outdoor unit L m Wire diameter mm2 Material standard Remarks Light Ordinary polyvinyl chloride sheathed cord 60227 IEC 52 60227 IEC 53 L 1000 2 0 75 IEC 6022...

Page 38: ...Heat Recovery DC Inverter Multi VRF Unit 35 Figure 33 4 6 3 2 Connection of communication wire 1 Communication wires of heat recovery units must be connected in series instead of in star mode Figure 34 ...

Page 39: ...Heat Recovery DC Inverter Multi VRF Unit 36 Figure 35 Figure 36 ...

Page 40: ...with another wire by peeling away its outer layer crimp connection or soldering connection must be adopted 4 6 4 Setting of communication address Auto addressing technology is adopted for heat recovery indoor and outdoor units Only the address of master control unit and the central control address are needed to be set Central control address is to be set when central control of multiple refrigerat...

Page 41: ... communication between indoor and outdoor units Communication between indoor and outdoor units is connected via terminal D1 D2 on the terminal block XT2 Connection method for single module and multi module systems is shown below Figure 39 Connection of communication for single module system and single moudle converter system ...

Page 42: ...Heat Recovery DC Inverter Multi VRF Unit 39 Figure 40 Connection of communication for multi module system and multi module converter system ...

Page 43: ...e long enough It s not recommended to connect wire by peeling away its outer layer Heat pump mode exchanger must be connected in series and the last mode exchanger must be connected with a matching resistance provided among the accessory parts of outdoor unit Connect the matching resistance to the D1 D2 terminals of wiring board XT2 of mode exchanger Adopt the one to one connection method for the ...

Page 44: ...ts at the different branches of heat pump converter When the mode exchanger connects to an indoor unit whose capacity is larger than 14kw keep the indoor unit and either one of the corresponding two branches connected Please confirm that these two branches are corresponding to the 1st number of SA2 DIP switch that directs to digital terminal on main board 4 7 2 Connection of communication between ...

Page 45: ...ntroller cannot exceed 16 All the connected indoor units must be in the same branch of the same heat pump mode exchanger The secondary wired controller can be set when unit is turned on or off Keep pressing Function button for 5 seconds on the wired controller that is to be set as the secondary wired controller Temperature zone will display C00 Continue to press Function button for 5 seconds and t...

Page 46: ...ard of indoor unit Type of indoor unit Connection type Corresponding main board interface of indoor unit Duct type indoor unit Inter board connection 17 cores Dsp1 interconnecting with the 8 core interface Dsp2 interconnecting with the 9 core interface Figure 46 Note Wired controller and remote control receiver board can be used at the same time If remote control receiver board is selected please ...

Page 47: ...Heat Recovery DC Inverter Multi VRF Unit 44 Figure 47 ...

Page 48: ... for protection against short circuit and overload A main circuit breaker shall also be set respectively for indoor and outdoor units in order to connect or disconnect power for all the units 4 8 1 External wiring for a single unit Figure 48 Note The maximum number n of connectable indoor units is dependent on the capacity of outdoor ...

Page 49: ...efer to sections of combination of units 4 8 2 External wiring for modular units Figure 49 Note The maximum number N of connectable outdoor units and the maximum number n of connectable indoor units are dependent on the combination way of outdoor units For details please ...

Page 50: ...units and wired controller correct The unit cannot run normally Communication malfunction might happen Has the communication line been connected correctly The unit cannot run normally Communication malfunction might happen Is the piping connection and valve status correct The unit cannot run normally The unit might be damaged Is the phase sequence of external power cord correct The unit cannot run...

Page 51: ...o current ambient temperature 1 If outdoor ambient temperature is above 20 the debugging mode is complete cooling mode 2 If outdoor ambient temperature is below 20 the debugging mode is complete heating mode 3 Before debugging please make sure the cut off valve of each outdoor basic module is completely open 4 During debugging the front panel of outdoor unit must be closed completely Otherwise the...

Page 52: ...confirm if the quantity is correct manually db On 04 On OC On System has confirmed the quantity of IDU Next step will start automatically 05_Internal communicati on detection db On 05 On C2 On Communication between master ODU and inverter compressor driver has error db On 05 On C3 On Communication between master ODU and inverter fan driver has error db On 05 On CH On Rated capacity ratio between I...

Page 53: ...g db On 15 On AC On Debugging for cooling mode Debugging operation mode the system will select automatically with no need of manual setting db On 15 On Relate d error code On Malfunction occurs when debugging for cooling mode db On 15 On J0 On Malfunction of other module occurs when debugging for cooling mode db On 15 On U9 On Pipeline or valve of outdoor unit is faulty db On 15 On XXXX U8 On Syst...

Page 54: ...power for all indoor units Make sure all IDUs are power on Then all outdoor modules will display Debugging not enabled Step 5 Find the module with 01 module address to be the master module Hold SW7 button on the master module for at least 5s to enable debugging Step 6 Wait Unit will then start progress 01 and 02 in progress 01 if master unit is not correctly set progress 01 will show the following...

Page 55: ...oard of each module will display Debugging code Progress code Status code Progress LED1 LED2 LED3 Code Display status Code Display status Code Display status 04_Confirm the quantity of IDUs db On 04 On Quantity of connected IDUs Blink If the quantity displayed is the same with actual quantity then press SW7 confirmation button on the master unit to confirm it Unit will start next progress Debuggin...

Page 56: ...s to be solved manually Below is relevant error Debugging code Progress code Status code Meaning Progress LED1 LED2 LED3 Code Display status Code Display status Code Display status 06_Detect outdoor electrical components db On 06 On Error code On System detects error in outdoor electrical components Elimination methods of above error can be found in Troubleshooting Step11 progress 07 is Detect ind...

Page 57: ... On 08 On U0 On Preheat time for compressor is less than 8h Step 13 progress 09 is Refrigerant judgments before startup If the refrigerant quantity inside the system meets the requirement of operation startup system will display as below and start next progress Debugging code Progress code Status code Meaning Progress LED1 LED2 LED3 Code Display status Code Display status Code Display status 09_Re...

Page 58: ... Calculate refrigerant quantity manually No need to operate System will start next progress Step 16 progress 12 is Confirm debugging startup In order to make sure all preparation work is done before startup this step is designed for user to confirm the startup again Operate as below If master unit displays as below system is waiting for confirmation signal Debugging code Progress code Status code ...

Page 59: ...6_Heating debugging db On 16 On AH On Debugging for heating mode Debugging operation mode the system will select automatically with no need of manual setting db On 16 On Error code On Malfunction occurs when debugging for heating mode db On 16 On J0 On Malfunction of other module occurs when debugging for heating mode db On 16 On U9 On Pipeline or valve of outdoor unit is faulty db On 16 On XXXX U...

Page 60: ...ng top temp of inverter compressor 1 4 Discharge tube temp of inverter compressor 2 Valid value for all inverter series 5 Casing top temp of inverter compressor 2 Valid value for all inverter series 6 Discharge tube temp of fixed speed compressor 1 7 Defrosting temp 1 In cooling mode defrosting temp 1 is 5 11 lower than system high pressure value In heating mode defrosting temp 1 is about 2 differ...

Page 61: ...mes of power voltage For example if 3 phase power voltage is 390v then the bus voltage after rectification is 390v 1 414 551v It s normal if actual voltage varies 15v from the calculated voltage Valid value for all inverter series 19 Operating frequency of motor 1 Hz Changes in 0 65Hz according to system s pressure 20 Current of motor 1 A 21 Operating frequency of motor 2 Hz Changes in 0 65Hz acco...

Page 62: ...ver Too many people in the room Too many heat resources in the room Reduce heat resources Filter is blocked for dirt Clean the filter Note If problem cannot be solved after checking the above items please contact Gree service center and show phenomena and models Following circumstance are not malfunction Malfunction Reason Unit doesn t run When unit is started immediately after it is just turned o...

Page 63: ...ater full protection Abnormal power supply for wired controller Freeze prevention protection d Indoor PCB is poor Malfunction of lower water temperature sensor of water tank Malfunction of ambient temperature sensor Malfunction of entry tube temperature sensor Outdoor E Malfunction of ODU High pressure protection Discharge low temperature protection Low pressure protection High discharge temperatu...

Page 64: ...s number of IDU is inconsistent For single control over multiple units IDU series is inconsistent Alarm due to bad air quality d Malfunction of exit tube temperature sensor Malfunction of humidity sensor Malfunction of water temperature sensor Malfunction of jumper cap Web address of IDU is abnormal PCB of wired controller is abnormal Outdoor E F Malfunction of discharge temperature sensor of comp...

Page 65: ...utlet temperature sensor Malfunction of indoor CO2 sensor Malfunction of upper water temperature sensor of water tank Malfunction of backwater temperature sensor Malfunction of inlet tube temperature sensor of generator Outdoor E F Current sensor of compressor 2 is abnormal Current sensor of compressor 3 is abnormal Current sensor of compressor 4 is abnormal Current sensor of compressor 5 is abnor...

Page 66: ...tatus Malfunction of solar power temperature sensor Malfunction of swing parts Outdoor E F Malfunction of casing top temperature sensor of compressor 1 Malfunction of casing top temperature sensor of compressor 2 Malfunction of exit tube temperature sensor of mode exchanger Malfunction of inlet tube temperature sensor of mode exchanger J b Malfunction of temperature sensor of oil return 3 Malfunct...

Page 67: ...is installed firmly If there is something abnormal please contact the GREE appointed service center 8 4 Maintenance after Seasonal Use 1 Cut off main power supply of the unit 2 Clean filter and indoor and outdoor units 3 Clean the dust and sundries on the indoor and outdoor units 4 In the event of rusting use the anti rust paint to stop spreading of rust 8 5 Parts Replacement Purchase parts from G...

Page 68: ...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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