Gree GMV-24WL/C-T Service Manual
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Gree GMV-24WL/C-T Service Manual

Gree GMV-24WL/C-T Service Manual

Dc inverter side discharge vrf ⅱ for north america
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DC Inverter Side Discharge VRF Ⅱ for
North America
Capacity: 24 kBtu/h~60 kBtu/h
Rated Frequency: 60 Hz

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Summary of Contents for Gree GMV-24WL/C-T

  • Page 1 DC Inverter Side Discharge VRF Ⅱ for North America Capacity: 24 kBtu/h~60 kBtu/h Rated Frequency: 60 Hz...
  • Page 2 CONTENTS PRODUCT ........................... 2 1 Product List ........................2 2 Product Features ......................2 2.1 General introduction ........................ 2 3 Specifications ........................3 3.1 Outdoor Unit ..........................3 3.2 Operation range ........................5 4 Product Capacity Correction ..................... 5 4.1 Instruction of Product Capacity Correction ................5 4.2 Capacity Code .........................
  • Page 3 3.1 Check before installation ....................... 67 3.2 Selection of installation site ....................67 3.3 Carrying and installing outdoor unit ..................68 3.4 Installation notices ......................... 68 3.5 Fixing and damping of unit ....................68 3.6 Outline dimension and position of installation hole ..............68 3.7 Installation space requirement ....................
  • Page 4 DC Inverter Side Discharge VRF Ⅱ for North America GREE PRODUCT...
  • Page 5 2 Product Features 2.1 General introduction Gree DC Inverter Multi VRF System II is the latest generation of DC inverter units. One set of air-cooled outdoor unit can be connected with multiple direct evaporation indoor units that are of the same or different forms and capacity.
  • Page 6 DC Inverter Side Discharge VRF Ⅱ for North America GREE GMV-60WL/A-T(U) is up to 8.2. For the upgraded efficiency DC Inverter Multi VRF System, SEER is up to 19.5~22; HSPF of GMV-36WL/C-T(U) and GMV-60WL/C-T(U) is up to 10.5~11; HSPF of GMV-48WL/C-T(U) is up to 10.6~10.8.
  • Page 7 DC Inverter Side Discharge VRF Ⅱ for North America GREE GMV-24WL/C GMV-28WL/C GMV-36WL/A- GMV-48WL/A- GMV-60WL/A- Model -T(U) -T(U) T(U) T(U) T(U) Rated Cooling 2.00 2.70 3.25 4.47 6.45 power Heating 2.40 2.60 3.72 3.93 5.60 input 900×340×134 980×360×790 940×320×1430 Unit Dimensions...
  • Page 8 4.2 Capacity Code Instruction of capacity code GMV-24WL/C-T(U) 、 GMV-28WL/C-T(U) 、 GMV-36WL/A-T(U) 、 GMV-48WL/A-T(U) GMV-60WL/A-T(U)、GMV-36WL/C-T(U) 、GMV-48WL/C-T(U) and GMV-60WL/C-T(U) are identical in components, systems and structure, etc. While the required capacity is set through the capacity DIP switch.
  • Page 9 DC Inverter Side Discharge VRF Ⅱ for North America GREE 4.3 Capacity Correction Formula 4.3.1 Rated capacity of outdoor unit GMV-24WL/ GMV-28WL/ GMV-36WL/A-T(U) GMV-48WL/A-T(U) GMV-60WL/A-T(U) Model C-T(U) C-T(U) GMV-36WL/C-T(U) GMV-48WL/C-T(U) GMV-60WL/C-T(U) 14.1 17.6 Rated cooling capacity Btu/h 24000 28000 37500...
  • Page 10 DC Inverter Side Discharge VRF Ⅱ for North America GREE (thermostat setting is 16℃(61℉) for cooling and 30℃(86℉) for heating). Variance ratio of heating capacity NOTE: 5 Principal of Operation Components in flowcharts are presented according to the following table:...
  • Page 11 DC Inverter Side Discharge VRF Ⅱ for North America GREE In cooling, the low-temperature and low-pressure refrigerant gas from each indoor heat exchanger will be merged and inhaled by the compressor and then become high-temperature and high-pressure gas, which will later be discharged into outdoor heat exchangers. By exchanging heat with outdoor air, refrigerant will turn to liquid and flow to each indoor unit via Y-type branch or manifold.
  • Page 12 DC Inverter Side Discharge VRF Ⅱ for North America GREE CONTROL...
  • Page 13 DC Inverter Side Discharge VRF Ⅱ for North America GREE CONTROL 1 Units’ Control 1.1 Schematic diagram of units’ control Interpretation on the schematic diagram (1) High pressure switch is used to identify system’s high and low pressure. When pressure is too high, the switch will break off and send a signal to main board.
  • Page 14 DC Inverter Side Discharge VRF Ⅱ for North America GREE 1.2 Operation Flow Chart 1.2.1 Operation Flow Chart of Indoor Unit (1) Cooling operation (2) Heating operation (3) Drying operation (4) Operation procedure is the same as that of cooling operation...
  • Page 15 DC Inverter Side Discharge VRF Ⅱ for North America GREE 1.2.2 Operation Flow Chart of Outdoor Unit (1) Cooling operation (2) Heating operation 1.3 Unit Control Functions 1.3.1 Control functions of outdoor unit (1) Include the following contents. (2) Compressor capacity output.
  • Page 16 DC Inverter Side Discharge VRF Ⅱ for North America GREE 1.3.2 Control functions of indoor unit (1) Include the following contents (2) Cool (3) Dry (4) Heat (5) Fan (6) Heating temperature compensation (7) Anti-freezing (8) Air swing (9) Drainage pump...
  • Page 17 DC Inverter Side Discharge VRF Ⅱ for North America GREE...
  • Page 18 DC Inverter Side Discharge VRF Ⅱ for North America GREE Button Graphics...
  • Page 19 DC Inverter Side Discharge VRF Ⅱ for North America GREE 2.2 Installation and removal 2.2.1 Installation dimensions 42.5 82.5 inch 4.41 0.87 0.11 0.13 0.20 1.67 1.57 3.25 2.2.2 Installation method Above is a simple installation method of wired controller. Please pay attention to the following: (1) Before installation, disconnect power of the indoor unit.
  • Page 20 DC Inverter Side Discharge VRF Ⅱ for North America GREE If caliber of the communication cord is too large, which causes difficulty in leading or sticking the cord according to above point 2 and point 5, strip some of the sheath of the communication cable to meet the installation requirement.
  • Page 21 DC Inverter Side Discharge VRF Ⅱ for North America GREE Fig. 2.2.4.3 One wired controller controls multiple indoor units simultaneously. Fig. 3.6Two wired controllers control multiple indoor units simultaneously.
  • Page 22 DC Inverter Side Discharge VRF Ⅱ for North America GREE 3 Remote Controller (1) Remote controller YAP1F Button name and function introduction Button name Function ON/OFF Turn on or turn off the unit TURBO Set turbo function MODE Set operation mode Set up&down swing status...
  • Page 23 DC Inverter Side Discharge VRF Ⅱ for North America GREE Button name Function TOFF Set timer off function Set timer on function Set left&right swing status Set fan speed Set temperature and time (2) Remote controller YV1L1 Button name Function...
  • Page 24 This will not only improve the productivity, but also reduce cost on human resources, property and management. Gree Commissioning Tool Kits can monitor and control the 2nd generation of Gree Multi VRF. User can monitor and control units by monitoring the computer. This software is an efficient tool for the intelligent air conditioning management as well as installation and after-sales service and commissioning.
  • Page 25 Instruction manual 64134100023 Instruction manual 4.3.2 Gree USB data converter 4.3.2.1 Functions introduction Gree USB data converter will convert the RS485, HBS and CAN commucation within the air conditioners into the communication that is recognizable by computer’s USB interface. 4.3.2.2 Appearance...
  • Page 26 (8) HBS interface: When HBS converter is under HBS communication mode, connect air conditioner’s HBS data interface. HBS interface exhibits no polarity (This interface is not yet available for Gree debugger and the monitoring software). (9) RS485 interface: When RS485 converter is under RS485 communication mode, connect air conditioner’s RS485 data interface.
  • Page 27 5.5 meters’ long. They are only different in length. One end of the wire shall connect with air conditioner’s communication interface and the other end shall connect with CAN interface of Gree USB converter. As shown below, the wire can be connected to the communication interface of outdoor...
  • Page 28 Gree Commissioning Tool Kits is applicable to air conditioning system that comsists of multiple series and models. Later, it will be developed to cover all series of Gree central air conditioners, such as multi VRF, centrifugal chiller, screw type chiller, ground source heat pump units, modular units, fan coiled units, close control units, etc.
  • Page 29 DC Inverter Side Discharge VRF Ⅱ for North America GREE For the first time to use Gree Commissioning Tool Kits, install these programmes: .Net Framework 4.0, USB Data Converter, Access Driver (necessary for versions below OFFICE 2007), Gree Debugger. 4.4.1.2 Installation flowchart Button Graphics This flowchart describes basically the software installation process.
  • Page 30 DC Inverter Side Discharge VRF Ⅱ for North America GREE 4.4.1.3 Installation process (1) Install .Net Framework 4.0 If your computer has installed .Net Framework 4.0 or versions above, there’s no need to install again. Otherwise, click “Install .Net Framework 4.0”.
  • Page 31 DC Inverter Side Discharge VRF Ⅱ for North America GREE Click and select “I have read and accept the license terms”. Then click “Install”. Installation is in progress.
  • Page 32 DC Inverter Side Discharge VRF Ⅱ for North America GREE Click “Finish” to complete the installation. (2) Install Access Driver Before operating Gree commissioning software, please first install Access Driver (necessary for versions below OFFICE 2007). Click “Install Access Driver”.
  • Page 33 DC Inverter Side Discharge VRF Ⅱ for North America GREE Click ”Next”. Tick “I accept the terms in the License Agreement” and then click “Next”...
  • Page 34 DC Inverter Side Discharge VRF Ⅱ for North America GREE Click “Browse” to change the default folder to the expected one, or click “Install” to continue the installation. Installation is in progress.
  • Page 35 DC Inverter Side Discharge VRF Ⅱ for North America GREE Click “Ok” to complete the installation. (3) Install Gree Debugger Before installing Gree debugger, make sure that your computer is installed with .Net Framework 4.0 or versions above. Then click “Install Gree Debugger”. Click “Next”.
  • Page 36 DC Inverter Side Discharge VRF Ⅱ for North America GREE Click “Browse” to select installation folder. If no change is needed for the folder, click “Next” to continue the installation. Click “Next”.
  • Page 37 DC Inverter Side Discharge VRF Ⅱ for North America GREE Installation is in progress. Click “Close” to complete the installation.
  • Page 38 DC Inverter Side Discharge VRF Ⅱ for North America GREE (4) Install USB Converter Driver If USB converter driver is already installed in your computer, this part can be skipped. Otherwise, click “Install USB Converter Driver”. Then the following installation window will be shown.
  • Page 39 DC Inverter Side Discharge VRF Ⅱ for North America GREE This window will exit after installation is finished. (5) Install Gree USB Data Converter If converter baud rate is needed to be set, then converter configuring software must be installed. Click “Install Gree USB Data Converter”.
  • Page 40 DC Inverter Side Discharge VRF Ⅱ for North America GREE Click “Next”. Tick “I accept the agreement”. Then click “Next” to continue installation.
  • Page 41 DC Inverter Side Discharge VRF Ⅱ for North America GREE Click “Browse” to select your expected installation folder. Click “Next” to continue. Click “Browse” to change folder. Click “Next” to continue.
  • Page 42 DC Inverter Side Discharge VRF Ⅱ for North America GREE If you want to create s desktop shortcut, tick “Creat a desktop icon”. Then click “Next” to continue. Destiniation location, folder and additional task will be shown in the next step. If you need to change...
  • Page 43 DC Inverter Side Discharge VRF Ⅱ for North America GREE Installaiton is in progress. Click “Finish” to complete the installation.
  • Page 44 DC Inverter Side Discharge VRF Ⅱ for North America GREE 4.4.2 Data monitoring Gree Debugger。Start up Gree Debugger. On the original interface, user can select language and units system. Click “OK” to confirm the defaulted language and units system and start up the software.
  • Page 45 DC Inverter Side Discharge VRF Ⅱ for North America GREE Select system of units. If units you want to monitor are already connected, and able to communicate normally, with correct COM and protocal, then you may click “Connect” to enter the interface of numbers. Otherwise, connect...
  • Page 46 DC Inverter Side Discharge VRF Ⅱ for North America GREE COM selection: the serial port in your computer can be detected automatically. You just need to select your desired serial port. Protocal selection: This is to select the communication method of your units. Currently, CAN is...
  • Page 47 DC Inverter Side Discharge VRF Ⅱ for North America GREE After the selection, click “Connnect”. If units can communicate normally with computer, then the interface of numbers will be shown soon. Otherwise, “Connecting” will be shown. There are several display zones on this interface. You can hide devices information and system...
  • Page 48 DC Inverter Side Discharge VRF Ⅱ for North America GREE On the display zone of devices information, you may click to select and view units that need monitoring.
  • Page 49 DC Inverter Side Discharge VRF Ⅱ for North America GREE 4.4.3 Project debugging Click icon of “Debug” on the menu bar and the interface will be switched to project debugging, where auto debugging will be started from up to down and from left to right. Note: Debugging function is only applicable to a single-system network.
  • Page 50 DC Inverter Side Discharge VRF Ⅱ for North America GREE Confirmation, the preheat time will be displayed. See the following marked with circle). Icon indicates that there is problem found during debugging. Debugging will not be completed unless problem is solved (after problem is solved, step without “OK” button will switch to the next step automatically, otherwise user needs to click “OK”...
  • Page 51 DC Inverter Side Discharge VRF Ⅱ for North America GREE then debugging will be finished step by step. For No.10 ODU Valves Check Before Startup, there are “Back” and “Skip” buttons. If there is error in this step, you can back to step No.9 and click “OK” to restart debugging on step No.10.
  • Page 52 DC Inverter Side Discharge VRF Ⅱ for North America GREE Take indoor unit as an example. Click “IDU Settings” and a dialog box will pop up. Tick the indoor units that need setting in the IDU selection zone or you may click “Select All” to select all of them or “Select Inverted”...
  • Page 53 DC Inverter Side Discharge VRF Ⅱ for North America GREE 4.4.5 Other functions (1) Capture screen Click icon of “Capture Screen” to print the interface. If you want to open the interface, click “Open”.
  • Page 54 DC Inverter Side Discharge VRF Ⅱ for North America GREE (2) Search for database folder Click icon of “Open Data Folder” on the menu bar to open database folder.
  • Page 55 DC Inverter Side Discharge VRF Ⅱ for North America GREE (3) Conversion of pressure value Click icon of “Others” on the menu bar and then click “Display Settings” to select “High Low Pressure Value” and “Refrigerant Type”. Select “Temperature” and the pressure parameter displayed on the interface will be temperature.
  • Page 56 DC Inverter Side Discharge VRF Ⅱ for North America GREE (4) Database saving of multiple systems Click icon of “Others” on the menu bar and click “Database Save Settings” to select which system that needs to save database. Because there is a large quantity of data in a network that contains multiple...
  • Page 57 DC Inverter Side Discharge VRF Ⅱ for North America GREE (5) Change database saving path and rebuild database Change of database saving path and rebuilding of database should be set before the software starts monitoring (see below interface). Click “Change database saving path” and click “Browse” to change the saving path.
  • Page 58 LEDs. Notice: If it’s the first time your PC uses Gree USB data converter, in order to prevent Gree USB data converter from being mistaken by your computer as other devices and make sure your mouse can work well, it is necessary to turn off the Serail Enumerator of computer after Gree USB data converter is connected.
  • Page 59 DC Inverter Side Discharge VRF Ⅱ for North America GREE Step 2: In the pop-up window, select “Device Manager” in the left column and then find “Port (COM and LPT)” in the right column. Click its...
  • Page 60 DC Inverter Side Discharge VRF Ⅱ for North America GREE Step 3: Right-click ”USB Serial Port (COM6) and then click ”Properties”. The dialog box of properties will then pop up. Step 4: Then click ”Port Settings” in the dialog box...
  • Page 61 DC Inverter Side Discharge VRF Ⅱ for North America GREE Step 5: Click ”Advanced” and then a new dialog box will pop up. Find the ”Serial Enumerator” in the miscellaneous options and cancel the tick. Click ”OK” to exit.
  • Page 62 DC Inverter Side Discharge VRF Ⅱ for North America GREE (2) Usage of converter configuring software: When the converter is working, hold the button ”SET” for 5 sec. Function LED will be flickering, indicating that the converter has enter the baud rate setting mode. Then you can use the converter configuring software to set the baud rate of converter.
  • Page 63 DC Inverter Side Discharge VRF Ⅱ for North America GREE Select the function that is to be set and the corresponding baud rate (refer to the look-up table) in the “Converter Setup”.Then click “Set”.
  • Page 64 DC Inverter Side Discharge VRF Ⅱ for North America GREE If you want to restore ex-factory settings, click “Default” to restore the default settings. Click “Get” to get the current setting details of converter.
  • Page 65 DC Inverter Side Discharge VRF Ⅱ for North America GREE Switchover of Software Languages...
  • Page 66 DC Inverter Side Discharge VRF Ⅱ for North America GREE INSTALLATION...
  • Page 67 DC Inverter Side Discharge VRF Ⅱ for North America GREE INSTALLATION 1 Engineering Installation Preparation and Notice 1.1 Installation notice Personnel and property safety are highly concerned during the entire installation process. Installation implementation must abide by relevant national safety regulations to ensure personnel and property safety.
  • Page 68 DC Inverter Side Discharge VRF Ⅱ for North America GREE Installation Problem Possible Consequence Insufficient refrigerant circulating in the system decreases the cooling performance of the air conditioner. Long-term operation under such The refrigerant pipe leaks. circumstance may cause an overheating compressor or even damage the compressor.
  • Page 69 DC Inverter Side Discharge VRF Ⅱ for North America GREE (3) Test report: Certifications and quality test reports must be provided. (4) The tensile strength must be at least 240 kgf/mm² . (5) Specifications requirement R410A Refrigerant System OD (mm/inch)
  • Page 70 DC Inverter Side Discharge VRF Ⅱ for North America GREE Total Length of Communication Cable Material Type Wire size Remarks between IDU Unit and IDU (ODU ) Unit L(m/feet) 1） If the wire diameter is enlarged to 2×AWG16, the total communication line length can reach 1500 m (4921-1/4feet).
  • Page 71 DC Inverter Side Discharge VRF Ⅱ for North America GREE 3.3 Carrying and installing outdoor unit When carrying the outdoor unit, hang the unit in four directions with two sufficient ropes. In order to avoid excursion from the center, the angel of ropes must be smaller than 40º during hanging and moving.
  • Page 72 DC Inverter Side Discharge VRF Ⅱ for North America GREE Fig.1 Unit:mm（inch） Model GMV-24WL/C-T(U) GMV-28WL/C-T(U) (38 6/19) (14 3/16) (31 2/16) (25 3/5) (15 5/9) Fig.2...
  • Page 73 DC Inverter Side Discharge VRF Ⅱ for North America GREE Unit:mm（inch） Model GMV-36WL/A-T(U) 1345 （35 7/16） （13 3/8） （53） （22 1/2） （15） GMV-48WL/A-T(U) 1430 GMV-60WL/A-T(U) (37) (12 9/16) (56 1/4) (24 7/8) (14 7/8) GMV-36WL/C-T(U) 1345 （35 3/8） GMV-48WL/C-T(U) (13 3/8)
  • Page 74 DC Inverter Side Discharge VRF Ⅱ for North America GREE Fig.5 Allowable Length and Height Difference of Connection Pipe Piping parameters of GMV-24WL/C-T(U)、GMV-28WL/C-T(U): Allowable Fitting pipe value(m/feet) Total length (actual length) of fitting pipe 250(820) L1+L2+L3+a+b+c+d Actual length 100(328) Length of farthest fitting pipe (m)
  • Page 75 Dimension of pipe from ODU to the 1st indoor branch will be determined by the dimension of outdoor connection pipe. Fig.6 Dimension of outdoor connection pipe: Pipe dimension Basic module Gas pipe Liquid pipe (mm/inch) (mm/inch) Φ15.9 Φ9.52 GMV-24WL/C-T(U) (Φ5/8) (Φ3/8) Φ15.9 Φ9.52 GMV-28WL/C-T(U) (Φ5/8) (Φ3/8) Φ15.9 Φ9.52 GMV-36WL/A-T(U) (Φ5/8) (Φ3/8)
  • Page 76 DC Inverter Side Discharge VRF Ⅱ for North America GREE 5.3 Selection of Indoor Branches Select indoor branches according to the total capacity of downstream indoor units. if the capacity exceeds that of the outdoor unit, capacity of outdoor unit prevails.
  • Page 77 DC Inverter Side Discharge VRF Ⅱ for North America GREE Total capacity of downstream indoor units Pipe Liquid pipe C (Btu/h) (mm/inch) (mm/inch) Φ12.7 Φ6.35 C ≤19000 (Φ1/2) (Φ1/4) Φ15.9 Φ9.52 19000<C≤48500 (Φ5/8) (Φ3/8) Φ19.05 Φ9.52 48500<C≤76400 (Φ3/4) (Φ3/8) 5.5 Dimension of Pipe between Indoor Branch and IDU Dimension of pipe between indoor branch and IDU should be consistent with the dimension of indoor pipe.
  • Page 78 DC Inverter Side Discharge VRF Ⅱ for North America GREE 6 Installation of Connection Pipe Conform to the following principles during pipe connection: Connection pipe should be as short as possible, so is the height difference between indoor and outdoor units. Keep the number of bends as little as possible. Radius of curvature should be as large as possible.
  • Page 79 DC Inverter Side Discharge VRF Ⅱ for North America GREE 6.1.2 Indoor Pipe Connection (1) Remove pipe cover and pipe plug. (2) Direct the flared part of copper pipe to the center of screwed joint. Twist on the flared nut tightly by hand, as in Fig.
  • Page 80 DC Inverter Side Discharge VRF Ⅱ for North America GREE Fig. 15 (2) Pipe connection for GMV-60WL/C-T(U)、GMV-60WL/C-T(U) As shown in Fig.16 and Fig.17, open the outermost soundproof cotton and place a fire barrier between compressor and straight pipe. Use a soldering gun to unsolder straight pipe 1 and straight pipe 2.
  • Page 81 During engineering installation, the connection pipe inside the unit must be wrapped by insulation sleeve. Below is the piping diagram of GMV-24WL/C-T(U)、GMV-28WL/C-T(U). According to customer requirement or space limit, outlet pipe can be installed from the front, right or rear side.
  • Page 82 DC Inverter Side Discharge VRF Ⅱ for North America GREE Fig. 19 (2) Y-type branch has several pipe sections with different dimension, which facilitates to match with various copper pipes. Use pipe cutter to cut in the middle of the pipe section that is of proper dimension and remove burrs as well.
  • Page 83 DC Inverter Side Discharge VRF Ⅱ for North America GREE Thermal insulating material shall be able bear the pipe temperature. For heat pump unit, liquid pipe should bear 70℃(158℉) or above and gas pipe should bear 120℃(248℉) or above. For cooling only unit, both liquid pipe and gas pipe should bear 70℃(158℉) or above.
  • Page 84 DC Inverter Side Discharge VRF Ⅱ for North America GREE Fig. 23 6.3.2 Refrigerant Adding (1) Refrigerant quantity of outdoor unit before delivery: GMV-24WL/C-T GMV-28WL/C-T GMV-36WL/A-T GMV-48WL/A-T GMV-60WL/A-T Model Refrigerant Qty (kg/oz) (84.7) (84.7) (176) (176) (229) GMV-36WL/C-T GMV-48WL/C-T GMV-60WL/C-T...
  • Page 85 NOTICE! L iquid pipe that is within 20m(65-5/8feet) doesn’t need to be added with refrigerant. Therefore, the minimum quantity of additional refrigerant = (23-20)×0.054+11×0.022 ＝ 0.404kg(14oz) GMV-24WL/C-T(U) 、 GMV-28WL/C-T(U) 、 GMV-36WL/C-T(U) 、 GMV-48WL/C-T(U) 、 GMV-60WL/C-T(U)： Quantity of additional refrigerant = ∑length of liquid pipe X quantity of additional refrigerant per meter+（quantity of indoor unit -2）×0.3...
  • Page 86 DC Inverter Side Discharge VRF Ⅱ for North America GREE outdoor unit. If required amount cannot be quickly filled due to pressure increase of the pipe, then set the unit in cooling startup and fill refrigerant from the low pressure check valve of the outdoor unit.
  • Page 87 DC Inverter Side Discharge VRF Ⅱ for North America GREE 7 Electric Wiring All electrical installation must be performed by qualified technicians in accordance with local laws, regulations and this user manual. Use air conditioner specialized power supply and make sure that it is consistent with system’s rated voltage.
  • Page 88 2) Broken line method. Please select it based on the actual installation situation. 7.2 Power Cable Wire Gauge and Circuit Breaker Selection Max Fuse Size/Fusible Min. Circuit Max Ckt, Bkr Size/Disjoncteur Model Power supply Max. Ampacity Max. (A) 208/230V~ GMV-24WL/C-T(U) 60Hz 208/230V~ GMV-28WL/C-T(U) 60Hz 208/230V~ GMV-36WL/A-T(U) 60Hz 208/230V~ GMV-48WL/A-T(U) 60Hz...
  • Page 89 DC Inverter Side Discharge VRF Ⅱ for North America GREE 8 Debugging of Unit Caution: ① After the initial installation is finished and the main board of outdoor unit is replaced, it must perform debugging. Otherwise, the unit can’t operate.
  • Page 90 DC Inverter Side Discharge VRF Ⅱ for North America GREE 8.2 Debugging of unit Description of test operation procedures and main board display of ODU 、 GMV-28WL/C-T(U) 、 GMV-36WL/C-T(U) 、 GMV-48WL/C-T(U) 、 GMV-24WL/C-T(U) GMV-60WL/C-T(U)： Description of each stage of debugging progress Debugging code Code meaning and operation method...
  • Page 91 DC Inverter Side Discharge VRF Ⅱ for North America GREE Description of each stage of debugging progress Debugging code Code meaning and operation method Progress Code Display status System detects error on indoor components. XX means the project code of IDU with error, e.g. no.1 IDU has d5 and d6 errors, meanwhile no.3 IDU displays error d6 and d7, then the...
  • Page 92 DC Inverter Side Discharge VRF Ⅱ for North America GREE Description of each stage of debugging progress Debugging code Code meaning and operation method Progress Code Display status Debugging for cooling mode. If no malfunction occurs for Display 50min when compressor is running, then the system is...
  • Page 93 DC Inverter Side Discharge VRF Ⅱ for North America GREE Description of each stage of debugging progress Debugging Progress code Status code code LED1 LED2 LED3 Code meaning and operation method Progress Display Display Display Code Code Code status status...
  • Page 94 DC Inverter Side Discharge VRF Ⅱ for North America GREE Description of each stage of debugging progress Debugging Progress code Status code code LED1 LED2 LED3 Code meaning and operation method Progress Display Display Display Code Code Code status status...
  • Page 95 DC Inverter Side Discharge VRF Ⅱ for North America GREE Description of each stage of debugging progress Debugging Progress code Status code code LED1 LED2 LED3 Code meaning and operation method Progress Display Display Display Code Code Code status status status Valves of ODU are being inspected.
  • Page 96 -15~8℃(5~46℉). In cool mode, the thermal electronic expansion valve Opening angle remains 480PLS. of thermal EXV In heat mode, the adjustable opening angle of EXV is 60~480PLS. GMV-24WL/C-T(U) Changes in GMV-28WL/C-T(U) 16Hz~74Hz. GMV-36WL/A-T(U) Compressor’s GMV-48WL/A-T(U) Changes in...
  • Page 97 For a same IDU in heat mode, the inlet temp will be 10℃ ~20℃(50~68℉) lower than the outlet temp. In cool mode, the opening angle of indoor EXV varies GMV-24WL/C-T(U) within 70~480PLS. GMV-28WL/C-T(U) In heat mode, the opening angle of indoor EXV varies within 70~480PLS.
  • Page 98 DC Inverter Side Discharge VRF Ⅱ for North America GREE MAINTENANCE...
  • Page 99 DC Inverter Side Discharge VRF Ⅱ for North America GREE MAINTENANCE 1 Malfunction List 1.1 Malfunction list for the wired controller Display Display Display Content Content Content code code code Wrong number of indoor Malfunction of Malfunction of water unit for one-to-more indoor...
  • Page 100 DC Inverter Side Discharge VRF Ⅱ for North America GREE Content symbol Division symbol High Discharge discharge Malfunction of High-pressure Low-pressure low-temperature temperature ODU (uniform) protection protection protection protection of compressor Malfunction Malfunction of discharge Malfunction of Main board of...
  • Page 101 DC Inverter Side Discharge VRF Ⅱ for North America GREE Content symbol Division symbol Setting for general unit and high Anti-ice Upper limit of Upper limit sensible temperature correction of correction Shield setting heat unit (0 setting under value for...
  • Page 102 DC Inverter Side Discharge VRF Ⅱ for North America GREE Content symbol Division symbol Setting for Select temperature engineering Heat main body Centigrade protection Defrost mode ability recover conducts correction setting correction status heating Fahrenheit value for factor θ discharge...
  • Page 103 DC Inverter Side Discharge VRF Ⅱ for North America GREE Content symbol Division symbol The main Dual heat body Static pressure EVI operation Compulsory source water conducts setting status setting cooling mode emptying cooling Content symbol Division symbol Communication malfunction...
  • Page 104 DC Inverter Side Discharge VRF Ⅱ for North America GREE (2) High pressure protection High pressure protection Measure whether Replace main Measure whether the high pressure the pressure board of outdoor is too high with manometer switch is normal unit...
  • Page 105 DC Inverter Side Discharge VRF Ⅱ for North America GREE (3) Low-pressure protection Low pressure protection Measure Replace main whether the Measure whether the low pressure board of outdoor is too low with manometer pressure switch unit is normal Replace...
  • Page 106 DC Inverter Side Discharge VRF Ⅱ for North America GREE (4) Discharge temperature protection Discharge temperature protection Measure whether the Replace main board of resistance valve for Check whether the discharge temperature for compressor is outdoor unit temperature sensor is reached to 113℃...
  • Page 107 DC Inverter Side Discharge VRF Ⅱ for North America GREE (5) Mafunction of temperature sensor Malfunction of temperature sensor Conform whether the Whether the plug of temperature is plug is connected connected with the plug of main board correctly correctly...
  • Page 108 DC Inverter Side Discharge VRF Ⅱ for North America GREE (8) Failure start-up (9) Reset protection for drive module of compressor, drive PFC protection for compressor, malfunction of drive temperature sensor for compressor, circuit malfunction of drive current detection for compressor...
  • Page 109 DC Inverter Side Discharge VRF Ⅱ for North America GREE (11) Desynchronizing protection for inverter compressor Wired controller displays P0 LED3 dual-8 nixie tube displays P9 Whether the Adjust the sequence of wire sequence of wire for compressor is for compressor...
  • Page 110 DC Inverter Side Discharge VRF Ⅱ for North America GREE (13) Loop malfunction of driven charging for compressor Wired controller displays P0 LED3 dual-8 nixie tube displays PF Check whether the wires for PFC induction is correct/ Replace main Reinsert the...
  • Page 111 DC Inverter Side Discharge VRF Ⅱ for North America GREE (15) Overcurrent protection for inverter compressor, IPM module protection, phase-lacking of inverter compressor Wired controller displays P1 LED3 dual-8 nixie tube displays P5、P6 or PE Whether the sequence of wire...
  • Page 112 DC Inverter Side Discharge VRF Ⅱ for North America GREE (17) AC current protection for inverter compressor Wired controller displays E0 LED3 dual-8 nixie tube displays PP Replace main board Work normally (18) Communication malfunction between main contoller and driver of inverter compressor...
  • Page 113 DC Inverter Side Discharge VRF Ⅱ for North America GREE 3 Power Distribution of Unit 3.1 Power distribution of unit The control logical relationship among parts inside the electric box of unit is showed by the mongline diagram (CAD source file).
  • Page 114 Four diodes and two MOS pipe are intergrated inside the PFC module. It will transform AC input power into DC power. PFC module Meanwhile, MOS pipe is controlled by PWM wave. Pressure will be increased by induction. 3.3 Circuit diagram GMV-24WL/C-T(U)、GMV-28WL/C-T(U)
  • Page 115 DC Inverter Side Discharge VRF Ⅱ for North America GREE GMV-36WL/A-T(U)、GMV-48WL/A-T(U) GMV-36WL/C-T(U)、GMV-48WL/C-T(U)
  • Page 116 DC Inverter Side Discharge VRF Ⅱ for North America GREE GMV-60WL/A-T(U) 4 Removal of Parts GMV-60WL/C-T(U)
  • Page 117 DC Inverter Side Discharge VRF Ⅱ for North America GREE 4.1 Key parts Photo Name Function Core part of air conditioning system. It sucks low temperature and low pressure gas, compress it compressor to high temperature and high pressure gas, and then discharge Throttling device.
  • Page 118 4.2 Removal of key parts 4.2.1 GMV-24WL/C-T(U), GMV-28WL/C-T(U) , series unit Removal operation for panel Remark: Before removing the panel, please make sure that the unit is disconected with the power...
  • Page 119 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation for panel Remark: Before removing the panel, please make sure that the unit is disconected with the power Process Photo Operation Instruction ● Loose the screw fixing the front 2.
  • Page 120 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation for blade Remark: Before removing the motor, please make sure that the unit is disconnected with the power. Process Photo Operation Instruction ● Loose screws fixing the panel 1.
  • Page 121 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation for blade Remark: Before removing the motor, please make sure that the unit is disconnected with the power. Process Photo Operation Instruction ● Assemble the unit in the the 5.
  • Page 122 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation of compressor Remark: Before removing the compressor, please make sure that there’s no refrigerant inside the pipeline and the power is disconnected. Process Photo Operation Instruction 3. Loose nuts...
  • Page 123 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation of compressor Remark: Before removing the compressor, please make sure that there’s no refrigerant inside the pipeline and the power is disconnected. Process Photo Operation Instruction ● Loose screws fixing...
  • Page 124 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation for 4-way valve Remark: Before removing the 4-way valve, please make sure that there’s no refrigerant inside the pipeline of system and then power is disconnected. Process Photo Operation Instruction ●...
  • Page 125 DC Inverter Side Discharge VRF Ⅱ for North America GREE Remival operation for eletronic expansion valve Remark: Before removing the electronic expansion valve, please make sure that there’s no refrigerant in th pipeline of system and the power is disconnected...
  • Page 126 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation of gas liquid separator Remark: Before removing the gas liquid separator, please make sure that there’s no refrigerant inside the pipeline of system and disconnect the power Process...
  • Page 127 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation for plate heat exchanger Remark: Before removing the plate heat exchanger, please make sure that there’s no refrigerant inside the pipeline of system and disconnect the power Process...
  • Page 128 DC Inverter Side Discharge VRF Ⅱ for North America GREE 4.2.2 GMV-36WL/A-T(U), GMV-48WL/A-T(U), GMV-60WL/A-T(U) GMV-36WL/C-T(U), GMV-48WL/C-T(U), GMV-60WL/C-T(U) , series unit Removal operation for panel Remark: Before removing the panel, please make sure that the unit is disconected with the power...
  • Page 129 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation for panel Remark: Before removing the panel, please make sure that the unit is disconected with the power Process Photo Operation Instruction Loose screws fixing left side plate and rear 4.
  • Page 130 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation for blade Remark: Before removing the motor, please make sure that the unit is disconnected with the power. Process Photo Operation Instruction Loose screws fixing motor with screwdriver 3.
  • Page 131 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation of compressor Remark: Before removing the compressor, please make sure that there’s no refrigerant inside the pipeline and the power is disconnected. Process Photo Operation Instruction Loose screws fiixng...
  • Page 132 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation of compressor Remark: Before removing the compressor, please make sure that there’s no refrigerant inside the pipeline and the power is disconnected. Process Photo Operation Instruction Take out the...
  • Page 133 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation of compressor Remark: Before removing the compressor, please make sure that there’s no refrigerant inside the pipeline and the power is disconnected. Process Photo Operation Instruction Loose screws fixing...
  • Page 134 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation for 4-way valve Remark: Before removing the 4-way valve, please make sure that there’s no refrigerant inside the pipeline of system and then power is disconnected. Process Photo...
  • Page 135 DC Inverter Side Discharge VRF Ⅱ for North America GREE Remival operation for eletronic expansion valve Remark: Before removing the electronic expansion valve, please make sure that there’s no refrigerant in th pipeline of system and the power is disconnected...
  • Page 136 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation of gas liquid separator Remark: Before removing the gas liquid separator, please make sure that there’s no refrigerant inside the pipeline of system and disconnect the power Process...
  • Page 137 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation for plate heat exchanger Remark: Before removing the plate heat exchanger, please make sure that there’s no refrigerant inside the pipeline of system and disconnect the power Process...
  • Page 138 DC Inverter Side Discharge VRF Ⅱ for North America GREE Removal operation for plate heat exchanger Remark: Before removing the plate heat exchanger, please make sure that there’s no refrigerant inside the pipeline of system and disconnect the power Process...
  • Page 139 Keep the vacuum pump for 2h and confirm that the pressure of vacuum meter hasn’t been increased. 6 Exploded View of Unit and Parts’ List Exploed view for outdoor unit and parts’ list (1) Model: GMV-24WL/C-T(U)、GMV-28WL/C-T(U) Exploded view 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38...
  • Page 140 DC Inverter Side Discharge VRF Ⅱ for North America GREE Parts list GMV-24WL/C-T(U) GMV-28WL/C-T(U) Name of Part Product Code CN850W0740 Product Code CN850W0750 Compressor and '00900100019501 '00900100019501 Fittings Compressor Overload '00180030 '00180030 Protector(External) Compressor Overload '00183032 '00183032 Protector(External) Compressor Overload...
  • Page 141 DC Inverter Side Discharge VRF Ⅱ for North America GREE GMV-24WL/C-T(U) GMV-28WL/C-T(U) Name of Part Product Code CN850W0740 Product Code CN850W0750 Connection pipe '05024100604 '05024100604 sub-assy Nozzle for Adding '06120014 '06120014 Freon Pressure Sensor '322101032 '322101032 Valve Support Assy '01804100306...
  • Page 142 DC Inverter Side Discharge VRF Ⅱ for North America GREE GMV-24WL/C-T(U) GMV-28WL/C-T(U) Name of Part Product Code CN850W0740 Product Code CN850W0750 Cable Cross Loop '26900000008 '26900000008 Pass Wire Ring '76614102 '76614102 Sub-assy Cable Cross Loop '76512008 '76512008 Filter Sub-Assy '111001000086...
  • Page 143 DC Inverter Side Discharge VRF Ⅱ for North America GREE (2) Model: GMV-36WL/A-T(U)、GMV-48WL/A-T(U) 、GMV-60WL/A-T(U) Exploded view Parts list GMV-36WL/A-T(U)/ GMV-60WL/A-T(U) GMV-48WL/A-T(U) Name of Part CN850W0230/ Product Code Product Code CN850W0270 CN850W0220 Coping 01264100008P 01264100047P Inductance Assy 01394100050 Inductance 43120122 43128000015...
  • Page 144 DC Inverter Side Discharge VRF Ⅱ for North America GREE GMV-36WL/A-T(U)/ GMV-60WL/A-T(U) GMV-48WL/A-T(U) Name of Part CN850W0230/ Product Code Product Code CN850W0270 CN850W0220 Left Side Plate 01314100013P 01314100084 Clapboard 01244100005 01244100029 Fan Motor 15704115 1570280206 Sensor Sub-Assy 39008000061G 39008000061G Fan Motor...
  • Page 145 DC Inverter Side Discharge VRF Ⅱ for North America GREE GMV-36WL/A-T(U)/ GMV-60WL/A-T(U) GMV-48WL/A-T(U) Name of Part CN850W0230/ Product Code Product Code CN850W0270 CN850W0220 Valve Electronic Expansion 07334447 43044100172 Valve Electric Expand Valve 4304413205 4304413220 Fitting Electronic Expansion 07334390 43044100173 Valve...
  • Page 146 DC Inverter Side Discharge VRF Ⅱ for North America GREE (3) Model: GMV-36WL/C-T(U)、GMV-48WL/C-T(U) Exploded view Parts list GMV-36WL/C-T(U) GMV-48WL/C-T(U) Name of Part CN850W1070 Product Code CN850W1080 Front Grill 01314100013 Diversion Circle 06123401 Cabinet 390002060018 Handle 765152128 Front Side Plate 765100047...
  • Page 147 DC Inverter Side Discharge VRF Ⅱ for North America GREE GMV-36WL/C-T(U) GMV-48WL/C-T(U) Name of Part CN850W1070 Product Code CN850W1080 Drainage hole Cap 4304000492 Pressure Protect Switch 4300040094 Electromagnetic Valve 4304413205 Pressure Sensor 4304413220 Electronic Expansion Valve 05015408 Discharge Charge Valve...
  • Page 148 DC Inverter Side Discharge VRF Ⅱ for North America GREE (4) Model: GMV-60WL/C-T(U) Exploded view Parts list GMV-60WL/C-T(U) Name of Part Product Code CN850W1090 Coping 4304413220 Electric Box Assy 4304000453 PFC Inductance 4300040094 Filter Board 4304413205 Drive Board 26113009 Main Board...
  • Page 149 DC Inverter Side Discharge VRF Ⅱ for North America GREE GMV-60WL/C-T(U) Name of Part Product Code CN850W1090 Front Grill 07133771 Diversion Circle 01314100083 Handle 00904100005 Front Side Plate 0721200102 Cabinet 43044100172 Brushless DC Motor 035222000004 Chassis Sub-assy 030072060154 Electromagnetic Valve...
  • Page 150 JF00302320...

This manual is also suitable for:

Gmv-24wl/c-tuGmv-28wl/c-tGmv-28wl/c-tuGmv-36wl/a-tGmv-36wl/a-tuGmv-48wl/a-t ... Show all

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