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ACPro GMV-72WM/B-F Owner's Manual

Dc inverter vrf units air conditioners
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DC Inverter VRF Units
Owner's Manual
Air Conditioners
GMV-72WM/B-F(U)
GMV-96WM/B-F(U)
GMV-120WM/B-F(U)
GMV-144WM/B-F(U)
GMV-360WM/B-F(U)
 Thank you for choosing Air Conditioners, please read this owner's manual carefully before
operation and retain it for future reference.

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Summary of Contents for ACPro GMV-72WM/B-F

  • Page 1 DC Inverter VRF Units Owner's Manual Air Conditioners GMV-72WM/B-F(U) GMV-96WM/B-F(U) GMV-120WM/B-F(U) GMV-144WM/B-F(U) GMV-360WM/B-F(U)  Thank you for choosing Air Conditioners, please read this owner’s manual carefully before operation and retain it for future reference.
  • Page 3 Preface AC PRO DC Inverter Multi VRF System, with the most advanced technologies in the world, uses eco-friendly refrigerant R410A as its cooling medium. For correct installation and operation, please read this manual carefully. This is the safety alert symbol. It is used to alert you to potential personal injury hazards.

  • Page 4: Table Of Contents

    Contents 1 Safety Precautions ................1 2 Product Introduction ................3 2.1 Names of Main Parts ........................3 2.2 Combinations of Outdoor Units ....................3 2.3 Combinations of Indoor and Outdoor Units ................4 2.4 The Range of Production Working Temperature ............... 5 3 Preparation before Installation .............

  • Page 5: Safety Precautions

    GMV DC Inverter VRF 1 Safety Precautions (1) Follow this instruction to complete the installation work. Please carefully read this manual before unit startup and service. (2) Wire size of power cord should be large enough. The damaged power cord and connection wire should be replaced by exclusive cable.
  • Page 6 GMV DC Inverter VRF (23) Electrify the unit 8 hours before operation. Please switch on for 8 hours before operation. Do not cut off the power when 24 hours short-time halting (to protect the compressor). (24) If refrigerant leakage happens during installation, please ventilate immediately. Poisonous gas will emerge if the refrigerant gas meets fire.

  • Page 7: Product Introduction

    Valve interface Assembly through-hole code through-hole 2.2 Combinations of Outdoor Units Model GMV-144WM/B-F(U) GMV-168WM/B-F(U) GMV-192WM/B-F(U) (Single) Model GMV-72WM/B-F(U) GMV-72WM/B-F(U) GMV-96WM/B-F(U) (Combined) + GMV-72WM/B-F(U) + GMV-96WM/B-F(U) + GMV-96WM/B-F(U) Model GMV-216WM/B-F(U) GMV-240WM/B-F(U) GMV-264WM/B-F(U) (Single) GMV-72WM/B-F(U) Model GMV-96WM/B-F(U) GMV-120WM/B-F(U) + GMV-96WM/B-F(U) (Combined) + GMV-120WM/B-F(U)

  • Page 8: Combinations Of Indoor And Outdoor Units

    + GMV-120WM/B-F(U) (Combined) + GMV-120WM/B-F(U) 2.3 Combinations of Indoor and Outdoor Units Max number of Max number of ODU Model connectable IDU ODU Model connectable IDU (unit) (unit) GMV-72WM/B-F(U) GMV-216WM/B-F(U) GMV-96WM/B-F(U) GMV-240WM/B-F(U) GMV-120WM/B-F(U) GMV-264WM/B-F(U) GMV-144WM/B1-F(U) GMV-288WM/B-F(U) GMV-144WM/B-F(U) GMV-312WM/B-F(U) GMV-336WM/B-F(U) GMV-168WM/B-F(U)

  • Page 9: The Range Of Production Working Temperature

    Picture Quantity Remarks DC Inverter VRF Units Owner's Manual Air Conditioners Owner's Manual GMV-72WM/B-F(U) GMV-96WM/B-F(U) GMV-120WM/B-F(U) GMV-144WM/B-F(U) GMV-360WM/B-F(U)  Thank you for choosing Air Conditioners, please read this owner’s manual carefully before operation and retain it for future reference. Must be connected to the last...

  • Page 10: Installation Site

    GMV DC Inverter VRF 3.2 Installation Site (1) Install the unit at a place where is adequate to withstand the weight of the unit and make sure the unit would not shake or fall off. (2) Never expose the unit under direct sunshine and rainfall. Install the unit at a place where is against dust, typhoon and earthquake.
  • Page 11 GMV DC Inverter VRF Unit: mm(in.) Fig.4 3.2.1.3 Space dimension for three-module unit Unit: mm(in.) Fig.5 3.2.2 When there is wall (or similar obstruction) above the unit, keep the distance between the unit top and the wall at least 3000mm(118-1/8in.) or above. When the unit is located in a totally open space with no obstructions in four directions, keep the distance between the unit top and wall at least 1500mm(59in.) or above (See Fig.6).
  • Page 12 GMV DC Inverter VRF Unit: mm(in.) Fig.6 Fig.7 3.2.3 Space dimension for multiple-module unit For keeping good ventilation, make sure there is no obstruction above the unit. When the unit is located at a half-open space (front and left/right side is open), install the unit as per the same or opposite direction.
  • Page 13 GMV DC Inverter VRF 3.2.4 Considering the seasonal wind in outdoor unit installation Anti-monsoon installation requirement for unit not connecting exhaust duct Fig.10 Fig.11 Anti-monsoon installation requirement for unit connecting exhaust duct Fig.12...

  • Page 14: Piping Work Requirements

    GMV DC Inverter VRF 3.2.5 Considering snow in outdoor unit installation Fig.13 3.3 Piping Work Requirements There should be no fall among outdoor modules. Refer to the table below for piping work requirements. R410A Refrigerant System Outer Diameter mm(in.) Wall Thickness mm(in.) Type Φ6.35(1/4) ≥0.8(1/32)

  • Page 15: Installation Instruction

    GMV DC Inverter VRF 4 Installation Instruction 4.1 Physical Dimension of the Outdoor Unit and Mounting Hole Outline and Physical Dimention of GMV-72WM/B-F(U). Unit: mm(in.) Fig.14...
  • Page 16 GMV DC Inverter VRF Outline and Physical Dimention of GMV-96WM/B-F(U)、GMV-120WM/B-F(U) and GMV-144WM/B1-F(U) unit. Unit: mm(in.) Fig.15...

  • Page 17: Connection Pipe

    GMV DC Inverter VRF 4.2 Connection Pipe 4.2.1 Schematic Diagram of Piping Connection Fig.16...
  • Page 18 GMV DC Inverter VRF 4.2.2 Schematic Diagram of Piping Sequence GMV-72WM/B-F(U) Fig.17 GMV-96WM/B-F(U) 、GMV-120WM/B-F(U) and GMV-144WM/B1-F(U). Fig.18...
  • Page 19 GMV DC Inverter VRF 4.2.3 Allowable pipe length and drop height among indoor and outdoor units Y type branch joint is adopted to connect indoor and outdoor units. Connecting method is shown in the figure below. Remark: Equivalent length of one Y-type manifold is about 0.5m(1-3/4ft.). Unit: m(ft.) Fig.19 L10: Length from the first branch to the farthest IDU;...
  • Page 20 Outdoor Model Gas pipe size mm(in.) Liquid pipe size mm(in.) GMV-72WM/B-F(U) No need to enlarge pipe size No need to enlarge pipe size GMV-96WM/B-F(U) No need to enlarge pipe size Φ12.7(1/2)
  • Page 21 GMV DC Inverter VRF Outdoor Model Gas pipe size mm(in.) Liquid pipe size mm(in.) Φ34.9(1-3/8) GMV-216WM/B-F(U) Φ19.05(3/4) GMV-240WM/B-F(U) No need to enlarge pipe size Φ19.05(3/4) No need to enlarge pipe size GMV-264WM/B-F(U) Φ22.2(7/8) GMV-288WM/B-F(U) No need to enlarge pipe size Φ22.2(7/8) GMV-312WM/B-F(U) No need to enlarge pipe size...
  • Page 22 GMV DC Inverter VRF Unit: m(ft.) Fig.21 NOTICE! When the distance between outdoor units exceeds 2m (6-1/2ft.), U-type oil trap should be added at low-pressure gas pipe. A+B≤10m (32-7/8ft.). 4.2.5 Fitting pipe between Outdoor Unit and the First Manifold 4.2.5.1 For single module system, pipe size (between outdoor unit and the first manifold) is determined by that of outdoor unit.
  • Page 23 GMV DC Inverter VRF Pipe size of basic outdoor module is shown as follows: Pipe between ODU and the first branch of IDU Basic Module Gas Pipe mm(in.) Liquid Pipe mm(in.) GMV-72WM/B-F(U) Φ19.05(3/4) Φ9.52(3/8) GMV-96WM/B-F(U) Φ22.2(7/8) Φ9.52(3/8) GMV-120WM/B-F(U) Φ28.6(1-1/8) Φ12.7(1/2) GMV-144WM/B1-F(U) Φ28.6(1-1/8)
  • Page 24 GMV DC Inverter VRF 4.2.5.3 Fitting pipe between two manifolds from basic modules Pipe size (between two manifolds from basic modules) is based on the total capacity of upstream modules. Fig.24 Total capacity of upstream modules Pipe size between manifolds Q(Btu/h) Gas pipe size mm(in.) Liquid pipe size mm(in.)
  • Page 25 4.2.5.4 Fitting pipe between the first manifold from indoor unit and the end manifold from outdoor unit Single module unit Fig.25 Pipe between ODU and the first branch of IDU Basic Module Gas Pipe mm(in.) Liquid Pipe mm(in.) GMV-72WM/B-F(U) Φ19.05(3/4) Φ9.52(3/8) GMV-96WM/B-F(U) Φ22.2(7/8) Φ9.52(3/8) GMV-120WM/B-F(U) Φ28.6(1-1/8) Φ12.7(1/2)
  • Page 26 GMV DC Inverter VRF Total rated capacity of outdoor Pipe between ODU and the first branch of IDU modules (multi-modular system) Gas pipe size mm(in.) Liquid pipe size mm(in.) GMV-144WM/B-F(U) Φ28.6(1-1/8) Φ12.7(1/2) GMV-168WM/B-F(U) Φ28.6(1-1/8) Φ15.9(5/8) GMV-192WM/B-F(U) Φ28.6(1-1/8) Φ15.9(5/8) GMV-216WM/B-F(U) Φ28.6(1-1/8) Φ15.9(5/8) GMV-240WM/B-F(U) Ф34.9(1-3/8)
  • Page 27 GMV DC Inverter VRF Total capacity of downstream R410A Refrigerant System Model indoor unit(s) C (KBtu/h) C＜68 FQ01A/A 68≤C≤102 FQ01B/A Y-type Manifold 102＜C≤239 FQ02/A 239＜C FQ03/A C≤136 FQ014/H1 136＜C≤232 T- type Manifold FQ018/H1 232＜C FQ018/H2 4.2.5.6 Fitting pipe between manifolds Pipe size (between two manifolds at indoor unit side) is based on the total capacity of upstream indoor unit(s).

  • Page 28: Installation Of The Connection Pipe

    GMV DC Inverter VRF 4.2.5.7 Fitting pipe between indoor unit and manifold Manifold should be matched with fitting pipe of indoor unit. Fig.29 Pipe between indoor branch and IDU Rated capacity of indoor unit C(Btu/h) Gas Pipe mm(in.) Liquid Pipe mm(in.) C≤9500 Φ9.52(3/8) Φ6.35(1/4)
  • Page 29 GMV DC Inverter VRF Fig.30 1) Align the expansion end of copper pipe with the center of threaded joint. Tighten the flare nuts with your hands. 2) Tighten the flare nuts with torque wrench until you hear "click" sound. 3) Use sponge to wrap the connecting pipe and joints without thermal insulation and tie it up with plastic tape.
  • Page 30 GMV DC Inverter VRF Fig. 31(b) (2) Manifold has serveral pipe sections with different pipe size, which facilitates to match with various copper pipe. Use pipe cutter to cut in the middle of the pipe section with different pipe size and deburr as well. See Fig. 32. Fig.
  • Page 31 GMV DC Inverter VRF Fig. 33(b) (4) Manifold is isolated by insulating material that can bear 120ºC(248℉)or higher temperature. Manifold attached foam cannot be taken as insulating material. 4.3.3 Installation and thermal insulation for pipeline (1) For multi VRF system, every copper pipe should be labeled so as to avoid misconnection. (2) Manifolds can be laid in the following ways: The length of a straight pipe between two manifolds cannot be less than 500 mm (19-11/16in.).
  • Page 32 GMV DC Inverter VRF Fig.34 (3) There must be three fixing point for both horizontal and vertical installation of the Y-type manifold. See Fig.35. Fixing point 1: 100mm(4in) on the main inlet manifold from the welding point Fixing point 2: 200mm(7-7/8in.) on the main branched pipe from the welding point Fixing point 3: 250mm(9-5/6in.) on the branched pipe from the welding point Unit: mm(in.) Fig.35...
  • Page 33 GMV DC Inverter VRF Fig.36 (5) Thermal insulation for pipeline 1) To avoid condensate or water leakage on connecting pipe, the gas pipe and liquid pipe must be wrapped with thermal insulating material and adhesive pipe for insulation from the air. 2) For heat pump unit, liquid pipe should bear 70ºC(158℉) or above, and gas pipe should bear 120ºC(248℉) or above.

  • Page 34: Air Purging And Refrigerant Charge

    GMV DC Inverter VRF 4.3.4 Support and protection for pipeline (1) Support should be made for hanging connection pipe. Distance between each support can not be over 1m(39-3/8in.). (2) Protection towards accidental damage should be made for outdoor pipeline. When the pipeline exceeds 1m(39-3/8in.), a pin.
  • Page 35 GMV DC Inverter VRF (2) ∑Refrigerant charging amount B of every module. Refrigerant charging amount B of Rated Capacity(1000Btu/h) every module kg(Pounds) IDU/ODU rated Quantity of capacity included collocation ratio IDUs(N) N＜4 50%≤C≤90% N≥4 0.5(1.1) 0.5(1.1) 0.5(1.1) 0.5(1.1) N＜4 1(2.2) 1(2.2) 1.5(3.3) 1.5(3.3)
  • Page 36 GMV DC Inverter VRF Quantity of refrigerant added to liquid pipe per meter) = 5kg (11pounds). R (Quantity of added refrigerant in total) = 5+0=5kg (11+0=11pounds). Modular combination of outdoor unit subjects to combinations that is currently available. After confirming that there is no leakage from the system, when the compressor is not in operation, charge additional R410A with specified amount to the unit through the filling opening of the liquid pipe valve of the outdoor unit.

  • Page 37: Electric Wiring

    GMV DC Inverter VRF 4.5 Electric Wiring 4.5.1 Wiring precautions (1) Wiring should conform to national rules. All the parts, materials, electric work should be in accordance with local codes. (2) Rated voltage and exclusive power supply should be used. (3) Power cord should be fixed soundly and reliable.
  • Page 38 GMV DC Inverter VRF Outdoor Unit Minimum Circuit Maximum Overcurrent Power Supply Fuse Capacity Ampacity Protection Outdoor units V/ Ph /Hz GMV-72WM/B-F(U) 208V/230V 3~ 60Hz GMV-96WM/B-F(U) 208V/230V 3~ 60Hz GMV-120WM/B-F(U) 208V/230V 3~ 60Hz GMV-144WM/B1-F(U) 208V/230V 3~ 60Hz GMV-144WM/B-F(U) 208V/230V 3~ 60Hz...
  • Page 39 GMV DC Inverter VRF 4.5.3 Connection of power cord (1) Before obtaining access to terminals, all supply circuits must be disconnected . (2) If units are type I electrical appliances, they must be reliably grounded. (3 Ground resistance must be in accord with requirements of local standard. (4) The green-yellow wire within units are ground wire.
  • Page 40 GMV DC Inverter VRF Fig. 41...

  • Page 41: System Communication

    GMV DC Inverter VRF 4.6 System Communication 4.6.1 Communication system include: (1) Communication among outdoor basic modules. (2) Communication between ODU and IDU. (3) Communication among IDUs. (4) Communication between IDU and wired controller. (5) Connection between IDU and light board receiver. (6) Communication between different refrigeration systems.
  • Page 42 GMV DC Inverter VRF 4.6.3 Selection and connection mode of GMV5 communication material 4.6.3.1Select communication material NOTICE! If air conditioners are installed at places where there’s strong electromagnetic interference, the communication wire of IDU and wired controller must use shielded wire and the communication wire between IDU and IDU/ODU must use shielded twisted pair.
  • Page 43 GMV DC Inverter VRF NOTICE! All of the selected communication wire must be consistent with local laws and regulations. 4.6.3.2 Connection mode of communication (1) All communication wires of GMV5 must be connected in series rather than in star. Fig.45 Fig.46...
  • Page 44 GMV DC Inverter VRF Fig.47 (2) All communication wires of GMV5 are connected by screws. Fig.48 (3) If a single communication wire is not long enough and needs to be connected, the connected joint must be welded or pressure-welded. Do not simply twist the wires together. 4.6.4 Communication address Auto addressing technology is adopted for GMV5 IDU and ODU.

  • Page 45: Connection Method And Steps For System Communication

    GMV DC Inverter VRF 4.7 Connection Method and Steps for System Communication 4.7.1 Communication connection between IDU and ODU NOTICE! The centralized controller can be installed when it is necessary. Connect IDU and ODU via terminal D1/D2 of wiring board XT2. Below are the connection graphics of single unit and modular units: Fig.49 Connection of single unit...
  • Page 46 GMV DC Inverter VRF Fig.50 Connection of modular unit (1) For modular outdoor units, if there are multiple outdoor modules, then the master unit must be the first outdoor module on the communication wire and should not connect with IDU (master unit is set by SA8 of the outdoor main board).
  • Page 47 GMV DC Inverter VRF 4.7.2 Communication connection between IDU and wired controller There are 4 kinds of connection between IDU and wired controller, as shown below: Fig.51 One wired controller controls one IDU Fig.52 Two wired controllers controls one IDU Fig.53 One wired controller controls multiple IDUs...
  • Page 48 GMV DC Inverter VRF Fig.54 Two wired controllers control multiple IDUs When two wired controllers control multiple IDUs, the wired controller can be connected to any one IDU, provided that the connected IDU is of the same series. Meanwhile, one and only one of the wired controllers must be set as a slave controller.
  • Page 49 GMV DC Inverter VRF Fig.55 (1) Wired controller and light board remote receiver can be used at the same time. (2) When light board remote receiver is used, please use remote controller at the same time. 4.7.4 Communication connection of central controlling units NOTICE! The centralized controller can be installed when it is necessary.
  • Page 50 GMV DC Inverter VRF Fig.56...

  • Page 51: External Electrical Wiring Diagram

    GMV DC Inverter VRF 4.8 External Electrical Wiring Diagram (1) Every unit should be equipped with a circuit breaker for short-circuit and overload protection. In general, circuit breaker is at OFF status. (2) During operation, all indoor units and outdoor units belonging to the same system must be kept energized status.
  • Page 52 GMV DC Inverter VRF 4.8.2 External wiring diagram of modular connection Fig.58 NOTICE! Maximum number of ODU (N) and maximum number of IDU (n) are based upon the combination type of ODU. For details, please refer to the introduction of units’ combination.

  • Page 53: Check Items After Installation And Trial Run

    GMV DC Inverter VRF 5 Check Items after Installation and Trial Run 5.1 Check Items after Installation Check Items Conditions Might Happen Check Has the unit been fixed firmly? The unit may drop, shake or emit noise. It may cause insufficient cooling/heating Have you done the gas leakage test? capacity.
  • Page 54 GMV DC Inverter VRF (4) Check if the unit appearance and piping system is damaged or not due to transportation. (5) Check if the terminals of electrical element is loose and the phase sequence is correct or not. (6) Check the valve: For single-module unit, fully open the gas and liquid valve and close oil balance valve;...
  • Page 55 GMV DC Inverter VRF Fig.60 (5) Before debugging, make sure the needed amount of refrigerant has been added to the pipe or at least 70% of the needed refrigerant has been added. (6) Description of each stage of debugging progress: Description of each stage of debugging progress ——...
  • Page 56 GMV DC Inverter VRF Description of each stage of debugging progress —— Debugging code Progress code Status code LED1 LED2 LED3 Meaning progress Display Display Display Code code Code status status status System detects “driven communication light light light error between master unit and inverter compressor”.
  • Page 57 GMV DC Inverter VRF Description of each stage of debugging progress —— Debugging code Progress code Status code LED1 LED2 LED3 Meaning progress Display Display Display Code code Code status status status light light blink Ready for units to start debugging. 12_Confirm debugging Manual calculation of refrigerant...
  • Page 58 GMV DC Inverter VRF 5.2.2.2 Debugging operation mode GMV5 multi VRF system has two debugging modes: one is direct operation on main board of outdoor units while the other is PC operation via special software. In PC software debugging, indoor/outdoor parameters can be displayed and historical data can be recorded and inquired. (Operation details can be found in relevant instruction manuals) (1)Debugging through operation on main board of outdoor units In this debugging mode, following debugging functions are included on the main board:...
  • Page 59 GMV DC Inverter VRF Step 7: in progress 03, the quantity of modules needs to be confirmed manually. Main board of each module will display: Debugging code Progress code Status code LED1 LED2 LED3 Progress Display Display Display Code Code Code status status...
  • Page 60 GMV DC Inverter VRF —— Debugging code Progress code Status code LED1 LED2 LED3 Meaning progress Display Display Display Code code Code status status status 05_Detect Detection is finished. Start next internal Light Light Light progress. communication If error is detected, system will stay at current progress. Error has to be solved manually. Below are relevant errors: ——...
  • Page 61 GMV DC Inverter VRF Elimination methods of above error can be found in Troubleshooting. Step11: progress 07 is “Detect indoor components” If no error is detected, system will display as below and then start next progress. —— Debugging code Progress code Status code LED1 LED2...
  • Page 62 GMV DC Inverter VRF —— Debugging code Progress code Status code LED1 LED2 LED3 Meaning progress Display Display Display Code code Code status status status 08_Confirm Preheat time for compressor is less preheated Light Light Light than 8h. compressor 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.
  • Page 63 GMV DC Inverter VRF If unit detects that valve status is not normal, it will display as below: —— Debugging code Progress code Status code LED1 LED2 LED3 Meaning progress Display Display Display Code code Code status status status 10_Status judgments of Light Light...
  • Page 64 GMV DC Inverter VRF If it’s confirmed, press SW7 confirmation button. Unit will display as below and start next progress. —— Debugging code Progress code Status code LED1 LED2 LED3 Meaning progress Display Display Display Code code Code status status status 12_Status judgments of...
  • Page 65 GMV DC Inverter VRF Outdoor pipeline and valves are not Light Light Light normal. System detects error in indoor pipeline. XXXX is the project no. of the faulted IDU. 3s later, error code XXXX Light Light Light U8 is displayed. For example, IDU no. 100 has U8 error, then LED3 displays like this: 01 (2s later) 00 (2s later) U8, and repeat again.
  • Page 66 GMV DC Inverter VRF 5.2.3 Appendix: judgment reference of normal operational parameters Reference of Debug Parameters of GMV5 DC Inverter Multi VRF System Debug item Parameter name Unit Reference Outdoor ambient temp ºC(°F) —— Discharge tube temp of ● When system compressor starts up, temp of ºC(°F) inverter compressor 1 discharge tube or casing top in cooling mode is...
  • Page 67 GMV DC Inverter VRF Reference of Debug Parameters of GMV5 DC Inverter Multi VRF System Debug item Parameter name Unit Reference Normal bus voltage is 1.414 times of power voltage. For example, if 3-phase power voltage is 220V, then Inverter compressor 1 the bus voltage after rectification is: 220V X driven bus voltage 1.414=311V.

  • Page 68: Common Malfunction And Troubleshooting

    GMV DC Inverter VRF 6 Common Malfunction and Troubleshooting Check the following items before contacting for repair. Phenomenon Reason Measure Without power supply Connect to power supply Voltage is too low Check if the voltage is within rating range The unit doesn’t Broken fuse or breaker trips off Replace fuse or connect breaker run.

  • Page 69: Error Indication

    GMV DC Inverter VRF “Malfunction” Reason The unit When unit runs after no operation for a long blows out Dust in indoor unit is blew out period duct The unit The room odor absorbed by the unit is blew out Operating emits odor again...
  • Page 70 GMV DC Inverter VRF Error Code Content Error Code Content Zero-crossing malfunction of PG Debugging status motor Indoor unit’s branch is not inconsistent Malfunction of solar power for one-to-more unit of heat recovery temperature sensor system Indoor PCB is poor Malfunction of swing parts Outdoor: Error Code...
  • Page 71 GMV DC Inverter VRF Error Code Content Error Code Content Driving board of compressor operates Malfunction of inlet tube temperature abnormally sensor of condenser Voltage protection of driving board Malfunction of outlet tube temperature power of compressor sensor of condenser High-pressure sensor and Reset protection of driving module of low-pressure sensor are connected...
  • Page 72 GMV DC Inverter VRF Error Code Content Error Code Content Web address of IDU is abnormal AC current protection of inverter fan Current sensor of compressor 1 is AC input voltage of drive of inverter abnormal Debugging: Error Code Content Error Code Content Preheat time of compressor is...

  • Page 73: Maintenance And Care

    GMV DC Inverter VRF Status: Error Code Content Error Code Content Unit waiting for debugging Shielding status Refrigerant recovery operation of SE operation setting of system after-sales Defrosting Compulsory defrosting Limit setting for max. capacity/output Oil-return capacity Compulsory excursion of engineering Heat pump function setting code of IDU Quiet mode setting...

  • Page 74: Notice Before Seasonal Use

    GMV DC Inverter VRF 8.3 Notice before Seasonal Use (1) Check if the inlet/outlet of the indoor/outdoor unit is clogged. (2) Check if the ground wire is earthed reliably. (3) Check if battery of remote wireless controller has been replaced. (4) Check if the filter screen has been set soundly.
  • Page 76 Add: 11700 Industry Ave., Fontana, CA 92337, USA Tel: 1-951-360-0630 E -mail: www.acpro.com...

This manual is also suitable for:

Gmv-72wm/b-fuGmv-120wm/b-fGmv-120wm/b-fuGmv-144wm/b-fGmv-360wm/b-fGmv-144wm/b-fu ... Show all

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