Related Manuals for Gree GMV-V36WL/C-T U
Summary of Contents for Gree GMV-V36WL/C-T U
- Page 1 Owner's Manual Original Instructions Commercial Air Conditioners DC Inverter Multi VRF System Applicable Models: GMV-V36WL/C-T(U) GMV-V48WL/C-T(U) GMV-V60WL/C-T(U)
- Page 2 Preface For correct installation and operation, please read all instructions carefully. Before reading the instructions, please be aware of the following items: (1) The design standard of multi VRF system conforms to related standard of sales countries. (2) To ensure safety when operating this system, please strictly follow the instructions in this manual. (3) The total capacity of running indoor units must not exceed that of the outdoor units.
-
Page 3: Table Of Contents
Contents 1 Safety Notices (Please be sure to abide them) ............1 2 Product Introduction ....................2 2.1 Names of Main Parts ......................2 2.2 Combinations of Indoor and Outdoor Units ............... 2 2.3 Operating Range ......................3 3 Preparation before Installation ................. 3 3.1 Standard Parts ........................ -
Page 4: Safety Notices (Please Be Sure To Abide Them)
DC Inverter Multi VRF System 1 Safety Notices (Please be sure to abide them) If not abide them strictly, it may cause severe damage to the unit or the people. If not abide them strictly, it may cause slight or medium damage to the unit or the people. -
Page 5: Product Introduction
DC Inverter Multi VRF System (25) If refrigerant leakage happens during installation, please ventilate immediately. Poisonous gas will emerge if the refrigerant gas meets fire. (26) Volatile liquid, such as diluent or gas will damage the unit appearance. Only use soft cloth with a little neutral detergent to clean the outer casing of unit. -
Page 6: Operating Range
DC Inverter Multi VRF System 2.3 Operating Range Cooling Outdoor temperature: -18*~54°C(0*~129°F) Heating Outdoor temperature: -30~27°C(-22~81°F) *Note: Cooling at -18~-5°C (0~50°F) is conditional. Please inquire our engineers for more information. 3 Preparation before Installation Graphics here are only for reference. Please refer to actual products. 3.1 Standard Parts Please use the supplied standard parts as required. -
Page 7: Installation Requirements For Cold And Snowy Areas
DC Inverter Multi VRF System Install ODU where the condensate water can be drained out freely during heating operation. Do not place animals and plants in the path of the warm air. Take the air conditioner weight into account and select a place where noise and vibration are small If the ODU is totally surrounded by walls, please refer to the following figure for space dimension: Unit: mm(inch) Fig.3.2.1... - Page 8 DC Inverter Multi VRF System Unit: mm(inch) Fig.3.3.2 As for the severe cold areas, please adopt longitudinal base to avoid blocking the water drainage of chassis due to ice and snow accumulation. Fig.3.3.3 Ice and snow accumulation affects heat exchange Fig.3.3.4 Smooth water drainage (3) Installation of protective device If there may be lateral snowfall may occur, you are suggested to install a lateral sunshade...
-
Page 9: Piping Work Requirements
DC Inverter Multi VRF System Fig.3.3.6 (4) If the unit is installed at the place with heavy snowfall, please remove the air-in grille to prevent snow accumulation on the fins. (5) Prohibit adopting the centralized drainage installation for severe cold or snowy areas; otherwise, the drainage pipe and the chassis may be iced. -
Page 10: Dimension Of Outdoor Unit And Mounting Hole
DC Inverter Multi VRF System When moving or repairing the unit, be sure to use the pressure gauge. First, perform the cooling operation, and then completely close the high pressure side valve (liquid valve). When the pressure gauge reads 0~0.05MPa, completely close the low pressure side valve (air valve), and then immediately stop operation and cut off the power. -
Page 11: Connection Pipe
DC Inverter Multi VRF System 4.3 Connection Pipe 4.3.1 Schematic Diagram of Piping Connection Fig.4.3.1 4.3.2 Allowable Length and Height Difference of Connection Pipe Y type branch joint is adopted to connect indoor and outdoor units. Connecting method is shown in Fig.4.3.2 below. - Page 12 DC Inverter Multi VRF System Fig.4.3.2 Allowable Length and Height Difference of Connection Pipe Allowable Value — Fitting Pipe feet Total length (actual length) of fitting pipe L1+L2+L3+a+b+c+d Actual length Length of farthest fitting pipe L1+L2+L3+d Equivalent length From the 1st branch to the farthest indoor pipe L2+L3+d ODU at upper side —...
-
Page 13: Installation Of Connection Pipe
DC Inverter Multi VRF System The pipe size is based on the dimension of outdoor connection pipe. Pipe Dimension Basic Module Gas pipe (mm/inch) Liquid pipe (mm/inch) GMV-V36WL/C-T(U) Φ15.9 (Φ5/8) Φ9.52 (Φ3/8) GMV-V48WL/C-T(U) Φ15.9 (Φ5/8) Φ9.52 (Φ3/8) GMV-V60WL/C-T(U) Φ19.05 (Φ3/4) Φ9.52 (Φ3/8) (2) Select the manifold “①”... - Page 14 DC Inverter Multi VRF System 4.4.1 Flaring Process (1) Use pipe cutter to cut the connection pipe in case it is unshaped. (2) Keep the pipe downward in case cutting scraps get into the pipe. Clear away the burrs after cutting.
- Page 15 DC Inverter Multi VRF System Fig.4.4.3 Pipe Diameter(mm/inch) Tightening Torque Φ6.35(1/4) 15~30(N·m) Φ9.52(3/8) 35~40(N·m) Φ12.7(1/2) 45~50(N·m) Φ15.9(5/8) 60~65(N·m) Φ19.05(3/4) 70~75(N·m) 4.4.4 Outdoor Pipe Connection Twist the flared nut on the connection pipe of outdoor valves. Twisting method is the same as for indoor pipe connection.
- Page 16 DC Inverter Multi VRF System Y-type manifold can be installed vertically or horizontally. Fig.4.4.5 The installation of the branch pipe has the following requirements. Please install it according to the angle shown in the figure below. Improper installation may lead to malfunction of the outdoor unit.
- Page 17 DC Inverter Multi VRF System The length of a straight pipe between two manifolds cannot be less than 500mm (19-11/16 inch). The length of a straight pipe before the main pipe port of the manifold cannot be less than 500mm (19-11/16 inch). The length of a straight pipe between the branch of the manifold and the IDU cannot be less than 500mm (19-11/16 inch).
- Page 18 DC Inverter Multi VRF System pipe must be wrapped with thermal insulating material and adhesive tape for insulation from the air. Joints of indoor and outdoor unit should be wrapped with insulating material and leave no gap between pipe and wall. See Fig.4.4.10. Fig.4.4.10 When wrapping the tape, the later circle should cover half of the former one.
-
Page 19: Vacuum Pumping, Refrigerant Adding
DC Inverter Multi VRF System Turn on all the indoor units in cooling mode for 24 hours, and remove the gas pipe filter: First, power off the whole system; then close the two cut-off valves of the gas pipe and remove the gas pipe filter;... - Page 20 DC Inverter Multi VRF System Fig.4.5.1 4.5.2 Additional Refrigerant Charging The amount of refrigerant charged into the system before leaving the factory does not include the amount of refrigerant added to the pipelines and the outdoor unit. The additional amount of refrigerant added to the pipelines is determined according to the size of the liquid pipe and its length on site.
-
Page 21: Electric Wiring
DC Inverter Multi VRF System pressure rise in the pipe, then power on the unit in cooling mode and charge the refrigerant through the gas valve of the outdoor unit. For example: The ODU is composed of the module: 60 kBtu/h. The IDUs are made up of 4 sets of 15 kBtu/h. - Page 22 DC Inverter Multi VRF System Power supply must include secure grounding terminal. Do not connect the ground wire to the following: ①Water pipe; ②Gas pipe; ③Drain pipe; ④Other places that are deemed as not secure by professional technicians. Be sure the power supply has been cut off and the capacitor on the main board has been discharged prior to electric wiring and service.
- Page 23 DC Inverter Multi VRF System Before starting work, check that power is not being supplied to the indoor unit and outdoor unit. Wrong wire connection may burn the electrical components. Connect the connection cords firmly to the terminal block. Imperfect installation may cause a fire. Always connect the ground wire.
-
Page 24: Check Items After Installation And Test Operation
DC Inverter Multi VRF System 5 Check Items after Installation and Test Operation 5.1 Check Items after Installation Possible Conditions Due to Improper Check Items Check Installation Each part of the unit is installed securely? Unit may drop, shake or emit noise. Gas leakage test is taken or not? Insufficient cooling (heating) capacity. - Page 25 DC Inverter Multi VRF System 5.2.2 Test Operation and Debugging Description of test operation procedures and main board display of ODU Description of each stage of debugging progress — Debugging code Code meaning and operation method Progress Code Display status System is not debugged, hold main board’s SW3 button for 5s to start debugging.
- Page 26 DC Inverter Multi VRF System 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 07/XX/error Display...
- Page 27 DC Inverter Multi VRF System 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 15/AC 15_ Cooling circularly...
- Page 28 DC Inverter Multi VRF System Debug item Parameter name Unit Reference When ambient temperature in cool mode is 25~35°C(77~95°F), the low pressure value System low is 0~8°C(32~46°F). °C(°F) pressure When ambient temperature in heat mode is above -5°C(23°F), the low pressure value is -15~8°C(5~46°F).
-
Page 29: Common Malfunctions And Troubleshooting
If an abnormal situation (such as peculiar smell) occurs, please stop the operation immediately and turn off the main power supply, and then contact Gree authorized maintenance center. If the unit continues to operate under abnormal situation, the air conditioner will be damaged and an electric shock or fire accident may result. - Page 30 DC Inverter Multi VRF System Phenomenon Causes When the system is started or stopped for a short time, you can hear the sound of “sa——”; you can also hear This is the sound produced when the this sound for a short time after the refrigerant stops or changes the flow.
-
Page 31: Error Indication
DC Inverter Multi VRF System Phenomenon Causes During cold weather heating operation, when Wired controller displays frost or ice may form on the outdoor unit heat Unit enters frost mode operation A3 code exchanger, the unit will automatically enter the defrost mode for a few minutes. - Page 32 DC Inverter Multi VRF System Outdoor: Error Error Content Content Code Code Main board of ODU is poor Malfunction of ODU (uniform) Malfunction of high-pressure sensor High-pressure protection Malfunction of low-pressure sensor Discharge low-temperature protection Malfunction of discharge temperature sensor of Low-pressure protection compressor 1 High discharge temperature protection of...
- Page 33 DC Inverter Multi VRF System Error Error Content Content Code Code Malfunction of liquid inlet temperature sensor of Failure startup of inverter compressor subcooler AC current protection of inverter Malfunction of driving board of fan (uniform) compressor Driving board of fan operates abnormally AC input voltage of drive of inverter (uniform) compressor...
-
Page 34: Maintenance And Care
DC Inverter Multi VRF System Error Error Content Content Code Code Setting of main IDU is successful Emergency status of compressor Emergency operation DIP switch code of Emergency status of fan compressor is wrong Charging of refrigerant is invalid Emergency status of module Identification malfunction of IDU of mode Rated capacity is too high exchanger... -
Page 35: Notice Before Seasonal Use
Otherwise, it may lead to danger. Use nitrogen or refrigerant to conduct the tests. 9 After-sales Service If there’s quality defect or other problems in the product, please contact Gree local after-sales service department for help. Warranty must be based on the following conditions: (1) Product’s initial startup must be performed by professional technicians from Gree service...
Need help?
Do you have a question about the GMV-V36WL/C-T U and is the answer not in the manual?
Questions and answers