Gree GMV-Pdhm280W/Na-M Installation And Operating Instruction Manual

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Installation and operating instruction manual (96 pages)

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HEAT RECOVERY D.C INVERTER MULTI VRF

Installation and Operating Instruction Manual

This Manual is applicable to following outdoor units:

Basic Model：

GMV-Pdhm224W/Na-M

GMV-Pdhm335W/Na-M

GMV-Pdhm450W/Na-M

Combined Model：

GMV-Pdhm504W2/Na-M ～ GMV-Pdhm1800W4/Na-M

Please read this Manual carefully before

installation and use.

GMV-Pdhm280W/Na-M

GMV-Pdhm400W/Na-M

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Summary of Contents for Gree GMV-Pdhm280W/Na-M

Page 1 HEAT RECOVERY D.C INVERTER MULTI VRF Installation and Operating Instruction Manual This Manual is applicable to following outdoor units: Basic Model： GMV-Pdhm224W/Na-M GMV-Pdhm280W/Na-M GMV-Pdhm335W/Na-M GMV-Pdhm400W/Na-M GMV-Pdhm450W/Na-M Combined Model： GMV-Pdhm504W2/Na-M ～ GMV-Pdhm1800W4/Na-M Please read this Manual carefully before installation and use.
Page 2 Thanks for your selection of Gree Air Conditioner Unit. Before use, please read this instruction manual carefully and keep it properly to ensure correct use of this machine. Instruction to Users Safety Considerations Selection of Installation Location and Precautions Installation of Outdoor Unit...
Page 3: Instruction To Users
Instruction to Users ☆ During using the unit under only-cooling /heating mode, the total capacity of indoor units which are running simultaneously shouldn’t be more than that of outdoor unit, or else poor cooling/heating capacity of each indoor unit will be resulted in. Under principal-cooling /heating mode, the total capacity of indoor units as principal part which are running simultaneously shouldn’t be more than that of outdoor units，or...
Page 4 ☆electric supply tolerances: (220-240V)±10%, (50±1)Hz ☆humidity :30-95% ☆installation altitude :max 1000m ☆transport/storage temperature : -25-55°C. ☆ Main switch provided by end user: main switch handle should be black or gray can be locked in “OFF” position with padlock ☆ The main disconnection device should be explained in user manual and the height should be recommended 0.6-1.7m.
Page 5: Safety Considerations
Safety Considerations 1． Please read this manual carefully before use and operate correctly as instructed in the manual. 2． You are specially warned to note the two symbols below. WARNING!: A symbol indicates that improper operation might cause human death or severe injuries.
Page 6 Safety Considerations Cautions! CAUTION FOR REFRIGERANT LEAKS (Point to note connection with refrigerant leaks) Introduction The installer and system specialist shall safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available. The GMV-Pdhm System like other air conditioning system uses R410A as refrigerants.R410A itself is an entirely safe non-toxic, non-combustible refrigerants.
Page 7 Safety Considerations 1. Calculate the amount of refrigerants (1b) charged to each system separately. Amount of refrigerants in a single unit system (amount of refrigerant with which the system is charged before leaving the factory) Additional charging amount (amount of refrigerant added locally in accordance with the length or diameter of the refrigerant piping) =total amount of refrigerants (1b) in the system.
Page 8 Please consult your GREE supplier. Before installation, please check the power supply for compliance with the ratings on nameplate. Check the power safety as well. (it shall be done by professionals)
Page 9 Safety Considerations Do not let the child to operate the air conditioner unit. Do not operate the air conditioner unit with wet hands. Please disconnect the main power before cleaning the air conditioner or replacing the air filter. Please disconnect the main power if the air conditioner unit is out of use for a long period.
Page 10: Selection Of Installation Location And Precautions
Selection of Installation Location and Precautions ● Selection of Installation Location for Air Conditioner Unit The installation of air conditioner unit must be in accordance with national and local safety codes. Installation quality will directly affect the normal use of air conditioner unit. The user is prohibited from installation himself.
Page 11 Selection of Installation Location and Precautions Caution! Installation at following positions might cause trouble to the air conditioner unit. If unavoidable, please contact Authorized Service Center. A place full of machine oil; A region with saline -sodic soil near the sea;； A place with sulphide ①...
Page 12: Grounding Requirement
Power supply of circuit sectional Model area of of the (V,Ph,Hz) breaker area of earth power cord cord(N) lead (mm GMV-Pdhm224W/Na-M 380~415,3 ,50 GMV-Pdhm280W/Na-M 380~415,3 ,50 GMV-Pdhm335W/Na-M 380~415,3 ,50 10.0 10.0 GMV-Pdhm400W/Na-M 380~415,3 ,50 10.0 10.0 GMV-Pdhm450W/Na-M 380~415,3 ,50 10.0 10.0...
Page 13: Connection Of Power Cord
Selection of Installation Location and Precautions ☆ The double color (yellow and green) cable inside the unit is specially used for grounding, so it shall not be used for other purposes nor can it be cut. Do not tighten with tapping screws; otherwise it might cause risk of electric shock.
Page 14 Selection of Installation Location and Precautions Power Supply Specification of Indoor Units Sheet A: Circuit breakers below indicate total capacity of circuit breakers which are corresponding to indoor units connecting general supply in the same system. Min. Sectional Area of Min.
Page 15: Noise Control
Selection of Installation Location and Precautions If choose the indoor unit with auxiliary electric heater which decides the capacity of circuit breaker. Below is the circuit breaker models which should be specially configured. Min. Sectional Area of Min. Sectional Area of Model of Indoor Units(with Capacity of Circuit Breaker auxiliary electric)
Page 16: Installation Of Outdoor Unit
Installation dimension shall be in accordance with the installation requirements in this ☆ manual. Outdoor unit must be securely fixed to the position. The unit shall be installed by professional technicians. ☆ ● Installation of Outdoor Unit 1. Outline Dimension of GMV-Pdhm224W/Na-M、GMV-Pdhm280W/Na-M...
Page 17 Installation of Outdoor Unit Outline Dimension of GMV-Pdhm335W/Na-M、GMV-Pdhm400W/Na-M、GMV-Pdhm450W/Na-M unit:mm...
Page 18 40 during lift and movement. The below is illustration for lifting of GMV-Pdhm280W/Na-M outdoor unit, with which other outdoor unit series with outlet on top is similar.
Page 19 Installation of Outdoor Unit <40° 4. During installation, tighten the support and base of the unit by using M12 screws.
Page 20 Installation of Outdoor Unit 5. Space dimension for installation of the unit is shown below. Clearance data of single unit GMV-Pdhm224W/Na-M、GMV-Pdhm280W/Na-M Electric box and exit are on this side Air Outlet Outdoor Unit GMV-Pdhm335W/Na-M、GMV-Pdhm400W/Na-M、GMV-Pdhm450W/Na-M Clearance data of multiple unit Requirements for mounting space dimensions of single-fan and single-fan double-module outdoor units...
Page 21 Installation of Outdoor Unit Air Outlet Air Outlet Electric box and exit are on this side Electric box and exit are on this side Requirements for mounting space dimensions of single-fan three-module and double-fan double-module outdoor units Air Outlet 出风口 Air Outlet Electric box and exit are on this side Electric box and exit are on this side...
Page 22 Installation of Outdoor Unit Air outlet Air Outlet Electric box and exit are on this side 3).Take Monsoons and Snow into Consideration To ensure good ventilation, the top of unit shall be kept open and free of any obstructions. In case that the front side and left side (or right side) of the outdoor unit is open space, the unit shall be installed in the same direction.
Page 23 Installation of Outdoor Unit No restriction to wall height Front side Back side Back side Front side Max. four machines in line o another outdoor unit beside In case there are walls on four sides of the outdoor unit, it is suggested to install the unit in the same direction. No restriction to wall height Front side Back side...
Page 24 Installation of Outdoor Unit Incorrect Correct Correct Protective cover Fresh air Fresh air Fresh air suction side suction side suction side (back side) (back side) (back side) Fresh air suction side (back side) The defrost time will be extended under this condition. 5).
Page 25 Installation of Outdoor Unit Type of anchoring bolt:JA Size M12 Spring washer 4 bolts required Support Screws protruding out Drainage ditch Construction method for anchoring bolt Incline smoothly downward for 1/50 approx. Drainage ditch uilt on ground When foundation is built on floor 型槽...
Page 26: Electrical Cable Connection
Installation of Outdoor Unit ● Electrical Cable Connection Cautions: ☆ Outdoor unit and indoor unit may be of unified power supply or separate power supply. But the indoor units must be of unified power supply. ☆ Be sure install a circuit breaker that can cut off the power of complete system. ●...
Page 27 Connection of Indoor and Outdoor Unit ●Installation requirements of refrigerant piping 1. Specification of Connecting Pipes R410A refrigerant system External Diameter(mm/inch) Thickness(mm) Type ≥ 0.8 Φ6.35(1/4) ≥ 0.8 Φ9.52(3/8) ≥ 0.8 Φ12.70(1/2) ≥ 1 Φ15.88(5/8) ≥ 1 Φ19.05(3/4) 1/2H ≥ 1.5 Φ22.2(7/8) 1/2H ≥...
Page 28 Connection of Indoor and Outdoor Unit 3. Selection of Diameter of Branch Pipe and Connection Pipe System Piping Schematics: Connection pipes between the branch piping of outdoor unit and indoor unit Connection pipe between the branch piping of outdoor unit and the first branch pipe on the indoor side Connection branch piping between outdoor units Connecting pipe between the branch piping...
Page 29 The diameter of connection pipes for basic module outdoor unit is as below: Piping Connections Liquid Suction Gas Discharge Gas Basic Model (mm) (mm) (mm) Φ9.5 Φ22.2 Φ19.1 GMV-Pdhm224W/Na-M GMV-Pdhm280W/Na-M Φ9.5 Φ22.2 Φ19.1 GMV-Pdhm335W/Na-M Φ12.7 Φ28.6 Φ19.1 GMV-Pdhm400W/Na-M Φ12.7 Φ28.6 Φ22.2 GMV-Pdhm450W/Na-M Φ12.7 Φ28.6...
Page 30 Piping Connections Lquid Low-pressure High-pressure pipe gas pipe gas pipe (mm) (mm) (mm) Multple Model Uses combination of GMV-Pdhm224W/Na-M GMV-Pdhm504W2/Na-M GMV-Pdhm280W/Na-M Φ15.9 Φ28.6 Φ22.2 GMV-Pdhm280W/Na-M GMV-Pdhm560W2/Na-M GMV-Pdhm280W/Na-M Φ15.9 Φ28.6 Φ28.6 GMV-Pdhm280W/Na-M GMV-Pdhm615W2/Na-M GMV-Pdhm335W/Na-M Φ15.9 Φ28.6 Φ28.6...
Page 31 GMV-Pdhm280W/Na-M GMV-Pdhm400W/Na-M GMV-Pdhm1130W3/Na-M GMV-Pdhm450W/Na-M Φ19.1 Φ41.3 Φ34.9 GMV-Pdhm280W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm1180W3/Na-M GMV-Pdhm450W/Na-M Φ19.1 Φ41.3 Φ34.9 GMV-Pdhm400W/Na-M GMV-Pdhm400W/Na-M GMV-Pdhm1250W3/Na-M GMV-Pdhm450W/Na-M Φ19.1 Φ41.3 Φ34.9 GMV-Pdhm400W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M Φ19.1 Φ41.3 Φ34.9 GMV-Pdhm1300W3/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm1350W3/Na-M GMV-Pdhm450W/Na-M Φ19.1 Φ41.3 Φ34.9 GMV-Pdhm280W/Na-M GMV-Pdhm280W/Na-M GMV-Pdhm400W/Na-M GMV-Pdhm1410W4/Na-M GMV-Pdhm450W/Na-M Φ22.2...
Page 32 GMV-Pdhm280W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M Φ25.4 Φ54.1 Φ41.3 GMV-Pdhm1630W4/Na-M GMV-Pdhm400W/Na-M GMV-Pdhm400W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm1700W4/Na-M GMV-Pdhm450W/Na-M Φ25.4 Φ54.1 Φ41.3 GMV-Pdhm400W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm1750W4/Na-M GMV-Pdhm450W/Na-M Φ25.4 Φ54.1 Φ41.3 GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M Φ25.4 Φ54.1 Φ41.3 GMV-Pdhm1800W4/Na-M Note: 1）For outdoor unit with total rated capacity less than 20.0kW...
Page 33 Connection of Indoor and Outdoor Unit 3）. Selection of the branch pipe of indoor unit Branch pipes between indoor units shall be selected based on the total capacity of downstream indoor units in accordance with the following table. R410A refrigerant Total Capacity of the Model system...
Page 34 Connection of Indoor and Outdoor Unit Model Capacity of Indoor High-pressure Low-pressure Liquid Unit Gas Pipe Gas Pipe Pipe (mm) (mm) (mm) CHS22 Φ9.52 Φ9.52 Φ6 22、25、28 CHS36 Φ9.52 Φ12.7 Φ6 32、36、40、45、 CHS71 Φ12.7 Φ15.9 Φ9.52 56、63、71、80 CHS90 Φ12.7 Φ15.9 Φ9.52 90、100、112、125 Note:...
Page 35 It is connected with Φ12.7mm copper pipe,anΦ13.0mm oil balancing connection three-way valve is needed when there are more than two units combined together. 8）. Outdoor unit piping sequence diagram A.GMV-Pdhm224W/Na-M、GMV-Pdhm280W/Na-M B.GMV-Pdhm335W/Na-M、GMV-Pdhm400W/Na-M、GMV-Pdhm450W/Na-M...
Page 36 Connection of Indoor and Outdoor Unit C. Three-dimensional Diagram of valves Cut-off valve for equalized Cut-off Cut-off valve valve of oil pipe pressure gas pipe liquid pipes Cut-off valve Gas-liquid Cut-off valve of high seperator of low pressure pressure gas pipes refrigerants cycle...
Page 37 Connection of Indoor and Outdoor Unit 4. Design requirements for oil trap If the height difference between the indoor unit and outdoor unit exceeds 6m, one oil trap shall be installed every 6m from lower to upper on the vertical section of high-pressure pipe and low-pressure pipe. The oil trap shall be fabricated into two U-type elbows or one return-type elbow.
Page 38 Connection of Indoor and Outdoor Unit Oil trap Oil trap Oil trap Outdoor unit is higher than indoor unit e. Fabrication dimension of oil trap is as shown below: B(mm) C(mm) inch Φ19.0 ≥34 ≤150 Φ22.2 ≥31 ≤150 Φ25.4 ≥45 ≤150 ≥45 ≤150...
Page 39 Connection of Indoor and Outdoor Unit 5 INSTALLATION OF MODE EXCHANGER 5.1 Selection of installation site The mode exchanger sub-assembly shall be installed close to the manhole or return air inlet(Notes: The precondition for installation close to return air inlet is that it will not affect the normal air inlet of the unit and can ensure repair of the components).
Page 40 Connection of Indoor and Outdoor Unit Ceiling Manhole Standard position No.3 If the installation site of mode exchanger is far from the manhole of indoor unit due to construction structure, the mode exchanger must be provided with a manhole separately. 5.2 Dimensions Data The dimensions data of CHS22~ CHS90:...
Page 41 Connection of Indoor and Outdoor Unit 5.3 Cautions for Installation A. The mode exchanger must be installed by using hanger rod. During installation, the components must be kept vertically upright according to the indicated direction; B. During installation, enough space shall be considered for removal of the components. The pipe shall not be jammed between the components.
Page 42 Connection of Indoor and Outdoor Unit Ceiling Fixing hanger rod must be added. Manhole G. After completing the welding, use the strap to bundle the control wires along the pipeline. H. After airtight test of the system, the mode exchanger must be thermally insulated. There shall be no copper tube exposed;...
Page 43 Connection of Indoor and Outdoor Unit Torque Sheet for Tightening Nuts Pipe Diameter Wall Thickness Tightening Torque (N·m) （mm）（mm） Ø6.35 ≥0.5 15-30 Ø 9.52 ≥0.71 30-40 Ø 12.7 ≥1 45-50 Ø 15.9 ≥1 60-65 Ø 19.05 ≥1 70-75 Caution: 1.
Page 44 Connection of Indoor and Outdoor Unit ☆ Y-type branch pipe is equipped with auxiliary tubes to adjust the diameter of different pipes. If the dimension of the pipe selected for site use is different from the dimension of branch pipe joint, use the pipe cutter to cut from the middle of the pipe with different dimensions, and deburr it as well.
Page 45 Connection of Indoor and Outdoor Unit Caution: ● For multi-split air conditioner system, each pipe shall be pasted with label to identify the pipe for each system and avoid wrong connection. ● Installation of Protective Layer on Connection Pipe 1. To avoid condensate dew or water leakage on connecting pipe, the high pressure gas pipe, low pressure gas pipe and liquid pipe must be wrapped with heat preservation material and adhesive pipe for insulation from the air.
Page 46 Communication of the System Ⅰ. Communication system of GREE Heat Recovery D.C Inverter Multi-VRF includes: 1. Communication between the indoor unit and the outdoor unit; 2. Communication among the indoor units 3. Communication among the outdoor units( in modules combination) 4.
Page 47 8×16＝128 台；Max. 8 pinboards can be equipped in each system and theoretically, max. quantity of indoor units can be: 8×16＝128 sets; 3. Extra pinboards are needed when indoor units of the system are more than that of pinboards connecting. Added pinboards can directly connect to previous pinboards. ⅣConnection of communication lines 1.
Page 48 Communication of the System Communication interface port CN4 of pinboards 1.2 When single module is applied in the outdoor unit and the Qty of indoor units are greater than 16sets and less than or equal to 32 sets: When the Qty of indoor units are greater than 16sets and less than or equal to 32 sets, the indoor units that each pinboard connects cannot exceed 16sets and the corresponding interface port of pinboards is CN4.
Page 49 Communication of the System Communication interface port CN4 of pinboards 1.3 When the qty of modules for outdoor units is two or above and the Qty of indoor units is less than or equal to 16sets. One communication line connecting pinboard of one of outdoor modules is enough for communication of all indoor units,...
Page 50 Communication of the System It is acceptable to connect with pinboard of other module. 1.4 2 modules or above are applied to outdoor units and the Qty of the indoor units is less than or equal to （N×16）: When the Qty of indoor units is less than or equal to （N×16）, there is no need for extra pinboards. The Qty of indoor units that each pinboards connects should less than or equal to 16 sets and the interface port of corresponding pinboard is CN4.
Page 51 Communication of the System Communication interface port CN4 of pinboards 1.5 2 modules or above are applied to outdoor units and the Qty of the indoor units is greater than （ N×16） : When the Qty of indoor units is greater than （N×16）, the extra pinboards should be added. The Qty of adding pinboards is :[ total indoor units –(N×16）]/16.
Page 52 Communication of the System Added pinboards For example: there are total 2 modules in outdoor units and each module equips one pinboard which can connect max, 16 indoor units So there are 32 sets indoor units can be connected. But the actual Qty of indoor units is 45 sets in this project, so one pinboard should be added:( 45-32）/16＝0.81 2.
Page 53 Communication of the System Communiation line 2 of indoor units Communiation line 1 of indoor units Communication among different pinboard prohibited...
Page 54 Communication of the System 3. Connection of communication lines of outdoor modules. By directly connecting mainboard with the dual-core and four-port communication line, communication of outdoor modules can be realized. Communication interface in mainboard is CN16. Mainboard of the outdoor unit Module Communication communication...
Page 55 Communication of the System Module address code SW3 Mainboard of outdoor units Module Qty code SW2 Address code SA1 of pinboard 1. Address setting of indoor untis Cautions as setting address of indoor units 1） . Indoor units connected with a same pinboard whose address can be set as 1~16 # but addresses cannot be reduplicative.
Page 56 Communication of the System Indoor units connected with the same pinboard Addresses of indoor Units connected with the Same pinboard can not be repulicative. Addresses of indoor units Indoor units connected with connected with the same the same pinboard pinboard can not be repulicative.
Page 57 Communication of the System 2. Address Setting of Wired Controller Caution: When setting the communication address of wired controller, the address has to be the same as the mainboard address of connecting indoor units, or communication error code “E6” will be displayed. Mainboard address of indoor units Address of...
Page 58 Communication of the System Module Qty code SW2 Qty code of each module should be the same. The Qty code in this example is “3” 4. Qty code of each module should be the same. The Qty code in this example is “3”...
Page 59 Communication of the System When there is module combination system in outdoor units, each module in the same cooling system has to set the module address code which cannot be reduplicative or communication error code” E6” will be displayed. The setting sequence of module address has to be as the follows: If the total modules in the same cooling system is 4, module sequence must be: 1＃，...
Page 60 Communication of the System Address code of each pinboard is SA1. Each pinboard address cannot be reduplicative and address codes in this example are “1”,”2 ”,”3”...
Page 61 Communication of the System Ⅶ. Code Table Model of Code Silk Control Tyoe Screen of Dialing Method Note Device Code Capac Code Position 22.4K .Gluing already Code 28.0K factory according to model of the module unit 33.5K capacity correction (Capacity) needless.
Page 62 Addre The code shall be Code Position increased from “0” and there is no requirement sequence address Fan Board each module independent. The code factory and there need correction.
Page 63 Communication of the System Ⅷ.Definition Table for Interface Ports of the Mainboard 2. A electric expansion 4.communication 1. transformer input valve A 3. transformer output interface of drive plate 5.Not Used 7.communication 6.communication interfaces other interface of pinboards modules 8. Status LED 9.
Page 64 17. temp. sensor on the 18. temp. sensor on the 19. temp. sensor on the top of the shell for fixed top of the shell for fixed top of the shell for the 16.Not Used speed 2 speed 1 inverter 20.
Page 65 power input 56. 4-way valve A mainboard...
Page 66 Notice for Project Installation ●Pressure Maintaining and Leak Detection Pressure maintaining and leak detection is required during installation of connecting pipe. After connection of connecting pipe with indoor/outdoor unit, it should be performed once again. Operation Procedure: （1）Charge 3.8Mpa of nitrogen and maintain the pressure for 24 hours. （2）Observe if the pressure change in 24 hours.
Page 67 Notice for Project Installation ● Pipe Installation Pipe installation of refrigerants is very important. Keep inner pipe dry, clean and sealed. Three important points for pipe installation of refrigerants Clean Sealed No water in pipe No impurities in pipe No leakage in pipe leakage impurities Illustration...
Page 68 Filling of Refrigerant and Test Run ● Filling of Refrigerant(it shall be done by professionals) 1. Before shipped out from manufacturer, the outdoor unit has been filled with refrigerant. Additional refrigerants may be filled when carrying out site connection of pipelines. 2.
Page 69 Filling of Refrigerant and Test Run 2. Method of Calculating Mass of Additional Refrigerant to Be Filled (Based on the Liquid Pipe) Mass of Additional Refrigerant to Be Filled =∑ Length of Liquid Pipe × Amount of Additional Refrigerant to Be Filled Per Meter of Liquid Pipe Amount of Additional Refrigerant to Be Filled Per Meter of Liquid Pipe （...
Page 70 Operating Principle of Muti-split and Heat-recovered Air-Conditioning Unit ● Operating Principle of Muti-Split and Heat-recovery Air-Conditioning Unit GMV-Pdhm224W/Na-M、GMV-Pdhm280W/Na-M GMV-Pdhm335W/Na-M、GMV-Pdhm400W/Na-M、GMV-Pdhm450W/Na-M If different indoor units perform cooling and heating operation at the same time, the appliances will enter heat-recovery operation, which will save energy consumption.
Page 71 Operating Principle of Muti-split and Heat-recovered Air-Conditioning Unit air which needs to cool; Refrigerants through refrigerant heat exchanger from high-pressure pipe exchanges heat with indoor air which needs to heat, which makes the purpose of heating of indoor unit realized. At last, all refrigerant through low-pressure gas pipe returns into compressor for next work circularly for air conditioning.
Page 72 Types of Indoor Units to Be Integrated Diagram of System Integration Outdoor unit cooling and heating cooling and heating mode exchanger mode exchanger ducted-type indoor unit cassette-type indoor unit (rectangular air outlet) Heat Recovery D.C Inverter Multi-VRF consists of one/two/ three modular outdoor units and multiple indoor units.
Page 73: Maintenance Measures
Maintenance Measures Warning! ● Before cleaning the air-conditioning unit, the unit must stop and the main power supply of the unit must be cut off. ● Do not wet the air-conditioning unit otherwise there will be danger of electric shock. Never use water to wash the air-conditioning unit.
Page 74 The reclaiming work shall be done by prefessionals GREE heat recovery DC inverter multi-connected units system is designed as 3-pipe system. Thus, when refrigerant on the indoor side is needed to be reclaimed to the outdoor side in the treatment of after-sales problems, the following operation matters must be paid attention to.
Page 75 Reclaim refrigerant Shut off gas-liquid Shut off oil separator equalized valve Low pressure Shut off valve on high refrigerant pressure gas piping circulating valve Step 2: Valve on the liquid piping of one of the modules shall be shut off, and after 1.5 minute, valve on the low pressure gas piping of the module shall be shut off, and then power supply of the module shall be turned off by turning off the air switch of the module.
Page 76 Reclaim refrigerant Step 3: when low pressure temperature of the refrigerant recovery system of the last module reaches -45 , ℃ valve on the low pressure piping shall be shut off immediately and power supply of the unit shall be switched off immediately.
Page 77: Troubleshooting
Troubleshooting Warning! In case of abnormal conditions (such as unpleasant smell), stop the unit and turn off the general power supply immediately, and then contact the service center. Keep on operating after abnormal conditions occur may cause damage to the air-conditioning unit and the accident of electric shock or fire. Do not repair the air-conditioning unit by yourself, as wrong repair may cause electric shock or fire.
Page 78 Troubleshooting ●Note If the cause of failure cannot be found after all the above items have been inspected, contact the service center and offer the symptom of failure and the model of air-conditioning unit. ●The following conditions are not failures: “Failure”...
Page 79 Troubleshooting Trouble and State Display of Mainboard LED of Outdoor Unit。 Definition: LED6： Power lamp (red), bright when energized. LED5： Operation lamp (green), bright if no error, which indicates that the unit is started; “Dark” indicates the unit is stopped. LED4、LED3、LED2、LED1：...
Page 80 Troubleshooting 2. Controlling trouble Display of Display of LED Trouble name wired remote LED6 LED5 LED4 LED3 LED2 LED1 controller Capacity dial-up of outdoor unit is ○ ● ● ○ No display wrong Drive error of outdoor fan / module ○...
Page 81: After Sales Service
E6 displayed on indoor unit under Inconsistency of Dial-up quantity ○ ● ○ ○ adaptor board failing with communication quantity to communicate with the master board Communication error between ○ ● ● master board of outdoor unit and adaptor board Communication error between ○...
Page 82 Operating Temperature Range and Rated Work Conditions of the Unit ●Outdoor Operating Temperature Range of the Air-conditioning Unit Running mode Outdoor dry-bulb temp（℃） Cooling -10 ~48 Heating -20 ~27 Cooling and Heating -10 ~20 Note: Cooling and Heating mode includes principle-cooling mode, principle-heating mode and heat-recovered only mode.
Page 83 2. All the parameters in the tables below are measured under the rated work condition. Such parameters in the specifications are subject to change so the data on the nameplate shall govern. ● Performance Parameters of the Outdoor Unit GMV-Pdhm224W/Na-M GMV-Pdhm280W/Na-M GMV-Pdhm335W/Na-M Basic Model 3phase,380～415V,50HZ,4wires system Power Supply 22.4...
Page 84 Performance Parameters of the Unit GMV-Pdhm400W/Na-M GMV-Pdhm450W/Na-M Basic Model 3phase,380～415V,50HZ,4wires system Power Supply 40.0 45.0 Cooling 136,480.0 153,540.0 Btu/h Capacity 45.0 50.0 Heating 153,540.0 170,600.0 Btu/h 12.45 14.3 Cooling Power Input 11.20 13.9 Heating 3.21 3.14 Cooling 4.02 3.60 Heating Cooling &...
Page 85 Performance Parameters of the Unit GMV-Pdhm504W2/Na-M GMV-Pdhm560W2/Na-M GMV-Pdhm615W2/Na-M Multple Model GMV-Pdhm224W/Na-M； GMV-Pdhm280W/Na-M； GMV-Pdhm280W/Na-M； Uses combination of GMV-Pdhm280W/Na-M GMV-Pdhm280W/Na-M GMV-Pdhm335W/Na-M 3phase,380～415V,50HZ,4wires system Power Supply 50.4 56.0 61.5 Cooling 171,964.8 191,072.0 209,838.0 Btu/h Capacity 56.5 63.0 69.0 Heating 192,778.0 214,956.0 235,428.0 Btu/h 13.0...
Page 86 Performance Parameters of the Unit GMV-Pdhm680W2/Na-M GMV-Pdhm730W2/Na-M GMV-Pdhm800W2/Na-M Multple Model GMV-Pdhm280W/Na-M； GMV-Pdhm280W/Na-M； GMV-Pdhm400W/Na-M； Uses combination of GMV-Pdhm400W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm400W/Na-M 3phase,380～415V,50HZ,4wires system Power Supply 68.0 73.0 80.0 Cooling 232,016.0 249,076.0 272,960.0 Btu/h Capacity 76.5 81.5 88.0 Heating 261,018.0 278,078.0 300,256.0 Btu/h 20.0...
Page 87 Performance Parameters of the Unit GMV-Pdhm850W2/Na-M GMV-Pdhm900W2/Na-M GMV-Pdhm960W3/Na-M Multple Model GMV-Pdhm280W/Na-M； GMV-Pdhm400W/Na-M； GMV-Pdhm450W/Na-M； Uses combination of GMV-Pdhm280W/Na-M； GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm400W/Na-M 3phase,380～415V,50HZ,4wires system Power Supply 85.0 90.0 96.0 Cooling 290,020.0 307,080.0 327,552.0 Btu/h Capacity 95.0 100.0 108.0 Heating 324,140.0 341,200.0 368,496.0 Btu/h 26.8...
Page 88 Performance Parameters of the Unit GMV-Pdhm1010W3/Na-M GMV-Pdhm1070W3/Na-M GMV-Pdhm1130W3/Na-M Multple Model GMV-Pdhm280W/Na-M； GMV-Pdhm280W/Na-M； GMV-Pdhm280W/Na-M； Uses combination of GMV-Pdhm280W/Na-M； GMV-Pdhm335W/Na-M； GMV-Pdhm400W/Na-M； GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M 3phase,380～415V,50HZ,4wires system Power Supply 101.0 107.0 113.0 Cooling 344,612.0 363,378.0 385,556.0 Btu/h Capacity 113.0 119.0 126.5 Heating 385,556.0 406,028.0...
Page 89 Performance Parameters of the Unit GMV-Pdhm1180W3/Na-M GMV-Pdhm1250W3/Na-M Multple Model GMV-Pdhm1300W3/Na-M GMV-Pdhm280W/Na-M； GMV-Pdhm400W/Na-M； GMV-Pdhm400W/Na-M； Uses combination of GMV-Pdhm450W/Na-M； GMV-Pdhm400W/Na-M； GMV-Pdhm450W/Na-M； GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M 3phase,380～415V,50HZ,4wires system Power Supply 118.0 125.0 130.0 Cooling 402,616.0 426,500.0 443,560.0 Btu/h Capacity 131.5 138.5 145.0 Heating 448,678.0 472.562.0...
Page 90 Performance Parameters of the Unit GMV-Pdhm1350W3/Na-M GMV-Pdhm1410W4/Na-M Multple Model GMV-Pdhm1460W4/Na-M GMV-Pdhm280W/Na-M; GMV-Pdhm280W/Na-M; GMV-Pdhm450W/Na-M; GMV-Pdhm280W/Na-M; GMV-Pdhm280W/Na-M; GMV-Pdhm450W/Na-M; Uses combination of GMV-Pdhm400W/Na-M; GMV-Pdhm450W/Na-M; GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M 3phase,380～415V,50HZ,4wires system Power Supply 135.0 141.0 146.0 Cooling 460,620.0 481,092.0 498,152.0 Btu/h Capacity 150.0 158.0 163.0 Heating 511,800.0...
Page 91 Performance Parameters of the Unit GMV-Pdhm1515W4/Na-M GMV-Pdhm1580W4/Na-M Multple Model GMV-Pdhm1630W4/Na-M GMV-Pdhm280W/Na-M; GMV-Pdhm280W/Na-M; GMV-Pdhm280W/Na-M; GMV-Pdhm335W/Na-M; GMV-Pdhm400W/Na-M; GMV-Pdhm450W/Na-M; Uses combination of GMV-Pdhm450W/Na-M; GMV-Pdhm450W/Na-M; GMV-Pdhm450W/Na-M; GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M 3phase,380～415V,50HZ,4wires system Power Supply 151.5 158.0 163.0 Cooling 516,918.0 539,096.0 556,156.0 Btu/h Capacity 176.5 181.5 Heating 576,628.0...
Page 92 Performance Parameters of the Unit GMV-Pdhm1700W4/Na-M GMV-Pdhm1750W4/Na-M Multple Model GMV-Pdhm1800W4/Na-M GMV-Pdhm400W/Na-M; GMV-Pdhm400W/Na-M; GMV-Pdhm450W/Na-M; GMV-Pdhm400W/Na-M; GMV-Pdhm450W/Na-M; GMV-Pdhm450W/Na-M; Uses combination of GMV-Pdhm450W/Na-M; GMV-Pdhm450W/Na-M; GMV-Pdhm450W/Na-M; GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M GMV-Pdhm450W/Na-M 3phase,380～415V,50HZ,4wires system Power Supply 170.0 175.0 180.0 Cooling 580,040.0 597,100.0 614,160.0 Btu/h Capacity 187.5 195.0 200.0 Heating 639,750.0...
Page 96 This product must not be disposed together with the domestic waste. This product has to be disposed at an authorized place for recycling of electrical and electronic appliances. GREE ELECTRIC APPLIANCES，INC.OF ZHUHAI Address : Jinji West Road, Qianshan, Zhuhai, Guangdong Tel: (0756) 8617555 (Customer Service Center) Postcode: 519070 GREE 66174319-04 （...

Gree GMV-Pdhm280W/Na-M Installation And Operating Instruction Manual

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