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Owner's Manual
Original Instructions
Commercial Air Conditioners
Multi Variable Air Conditioners
Cassette Type Indoor Unit
Models:
GMV-ND07T/C-T(U) GMV-ND09T/C-T(U) GMV-ND12T/C-T(U) GMV-ND15T/C-T(U)
GMV-ND18T/C-T(U) GMV-ND22T/C-T(U) GMV-ND24T/C-T(U) GMV-ND30T/C-T(U)
GMV-ND36T/C-T(U) GMV-ND42T/C-T(U) GMV-ND48T/C-T(U)
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Related Manuals for Gree GMV-ND07T/C-T
Summary of Contents for Gree GMV-ND07T/C-T
- Page 1 Owner's Manual Original Instructions Commercial Air Conditioners Multi Variable Air Conditioners Cassette Type Indoor Unit Models: GMV-ND07T/C-T(U) GMV-ND09T/C-T(U) GMV-ND12T/C-T(U) GMV-ND15T/C-T(U) GMV-ND18T/C-T(U) GMV-ND22T/C-T(U) GMV-ND24T/C-T(U) GMV-ND30T/C-T(U) GMV-ND36T/C-T(U) GMV-ND42T/C-T(U) GMV-ND48T/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: 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. This sign indicates that the items must be prohibited.
- Page 3 Exception Clauses Manufacturer will bear no responsibilities when personal injury or property loss is caused by the following reasons: (1) Damage the product due to improper use or misuse of the product; (2) Alter, change, maintain or use the product with other equipment without abiding by the instruction manual of manufacturer;...
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Page 4: Table Of Contents
Contents 1 Safety Precautions ······················································································· 1 2 Product Introduction ······················································································ 2 2.1 Names of Key Components ··············································································· 2 2.2 Rated Working Condition ··················································································· 2 3 Preparations for Installation ············································································ 3 3.1 Standard Fittings ····························································································· 3 3.2 Installation Position Selection ············································································· 4 3.3 Requirements for Communication Line ·································································... -
Page 5: Safety Precautions
(26) If there are any abnormal circumstances (such as burning smell, etc.), please turn off the unit and cut off the main power supply immediately, and then contact Gree appointed service center. If those abnormal circumstances still exit, the unit may be damaged and it may lead to electric shock or fire hazard. -
Page 6: Product Introduction
Any personal injury or property loss caused by improper installation, improper debug, unnecessary repair or not following the instructions of this manual should not be the responsibility of Gree Electric Appliances, Inc. of Zhuhai. 2 Product Introduction 2.1 Names of Key Components Fig.2.1.1... -
Page 7: Preparations For Installation
Multi Variable Air Conditioners Cassette Type Indoor Unit 3 Preparations for Installation Product graphics are only for reference. Please refer to actual products. Unspecified measure unit is mm (inch). 3.1 Standard Fittings Please use the supplied standard fittings listed below as instructed. Name Appearance Q'ty... -
Page 8: Installation Position Selection
Multi Variable Air Conditioners Cassette Type Indoor Unit 3.2 Installation Position Selection (1) The appliance shall not be installed in the laundry. (2) The location should be able to withstand the weight of unit. (3) The water can be drained conveniently from drainage pipe. (4) There should be no obstruction near air inlet and air outlet. - Page 9 Multi Variable Air Conditioners Cassette Type Indoor Unit 3.3.1 Select Communication Line for Indoor Unit and Wired Controller Fig.3.3.1 Total length of communication line Wire size Material Material type Remarks between indoor unit and /AWG) standard wired controller L (m/ft.) 1.
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Page 10: Wiring Requirements
Multi Variable Air Conditioners Cassette Type Indoor Unit 3.4 Wiring Requirements Power Cord Size and Air Switch Capacity Model Power Supply MCA(A) MOP(A) GMV-ND07T/C-T(U) GMV-ND09T/C-T(U) GMV-ND12T/C-T(U) GMV-ND15T/C-T(U) GMV-ND18T/C-T(U) GMV-ND22T/C-T(U) 208/230V-1ph-60Hz GMV-ND24T/C-T(U) GMV-ND30T/C-T(U) GMV-ND36T/C-T(U) GMV-ND42T/C-T(U) GMV-ND48T/C-T(U) (1) An all-pole disconnection switch having a contact separation of at least 3mm (1/8 inch) in all poles should be connected in fixed wiring. - Page 11 Multi Variable Air Conditioners Cassette Type Indoor Unit 4.1.2 Suspend the Indoor Unit (1) Drill bolt holes and install bolts. 1) Stick the reference cardboard on the installation position; drill 4 holes according to the hole site on the cardboard as shown in Fig.4.1.2; Diameter of drilling hole is according to the diameter of expansion bolt and the depth is 60-70mm (2-3/8~2-3/4 inch), as shown in Fig.4.1.3.
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Page 12: Refrigerant Pipe Connection
Multi Variable Air Conditioners Cassette Type Indoor Unit Fig.4.1.5 4.2 Refrigerant Pipe Connection (1) Aim the flaring port of copper pipe at the center of screwed joint and then tighten the flaring nut with hand as shown in Fig.4.2.1. (2) Tighten the flaring nut with torque wrench. Fig.4.2.1 Pipe diameter mm(inch) Torque(N•m) -
Page 13: Drainage Pipe Installation And Drainage System Testing
Multi Variable Air Conditioners Cassette Type Indoor Unit 4.3 Drainage Pipe Installation and Drainage System Testing 4.3.1 Notice for Installation of Drain Pipe (1) It is not allowed to connect the condensate drain pipe into waste pipe or other pipelines which are likely to produce corrosive or peculiar smell to prevent the smell from entering indoors or corrupt the unit. - Page 14 Multi Variable Air Conditioners Cassette Type Indoor Unit (7) Apply the suitable diameter for converging drainage pipe according to the operating capacity of the unit. Unit: mm (inch) Fig.4.3.2 (8) The installation height of raising pipe for drainage should be lower than B. The gradient from raising pipe towards drainage direction should be at least 1%~2%.
- Page 15 Multi Variable Air Conditioners Cassette Type Indoor Unit sagging, install hanger bracket at intervals of 1000~1500mm (39-3/8~59 inch). Unit: mm (inch) Fig.4.3.4 (10) During the installation, distance from soft drain pipe to the gasket is C when the bolt is tightened.
- Page 16 Multi Variable Air Conditioners Cassette Type Indoor Unit Unit: mm (inch) Fig.4.3.6 4.4 Locking Joint Installation When the power cable and communication line of the unit are connected, the power cable and communication line need to be fixed through the side panel locking connector. The fixing process is as follows.
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Page 17: Panel Installation
Multi Variable Air Conditioners Cassette Type Indoor Unit 4.5 Panel Installation 4.5.1 Notices for Installation (1) Improper decorative panel installation could cause the following problems. Fig.4.5.1 (2) Ensure that it’s clearance-free between decoration panel and ceiling board after installation, if not, please adjust the body position. - Page 18 Multi Variable Air Conditioners Cassette Type Indoor Unit Fig.4.5.4 (2) Adjust the position of panel to make the panel holes fix at the holes on the units. (3) Fix the 4 screws at the two side of panel, as shown in Fig.4.5.5. Fig.4.5.5 (4) Detach the air inlet grille from panel, make a wiring connection of signal receiver.
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Page 19: Installation Of Wired Controller
Multi Variable Air Conditioners Cassette Type Indoor Unit 4.6 Installation of Wired Controller Please refer to User Manual of Wired Controller for the installation details. When installation is finished, the unit must be tested and debugged before operation. Please refer to Instruction Manual of ODU for auto addressing and debugging details. 5 Wiring Work Before obtaining access to terminals, all supply circuits must be disconnected. -
Page 20: Power Cord Connection
Multi Variable Air Conditioners Cassette Type Indoor Unit 5.2 Power Cord Connection Every unit should be equipped with a circuit breaker for short-circuit and overload protection. In general, circuit breaker is at OFF status. During operation, all indoor units and outdoor units belonging to the same system must be kept energized status. -
Page 21: Connect Communication Wire Of Wired Controller
Multi Variable Air Conditioners Cassette Type Indoor Unit Fig.5.3.2 (4) Fix the communication cable with clamp of electric box. (5) For more reliable communication, make sure connect the terminal resistor to the most downstream IDU of the communication bus (terminal D1 and D2), as shown in Fig. 5.3.2, terminal resistor is provided with each ODU. -
Page 22: Illuminate For Connection Of Wired Controller And Indoor Units Network
Multi Variable Air Conditioners Cassette Type Indoor Unit Fig.5.4.3 5.5 Illuminate for Connection of Wired Controller and Indoor Units Network (1) Communication wire of indoor unit and outdoor unit (or indoor unit) is connected to D1, D2. (2) Wired controller is connected to H1, H2. (3) One indoor unit can connect two wired controllers that must be set as master one and slave one. -
Page 23: Routine Maintenance
Multi Variable Air Conditioners Cassette Type Indoor Unit 6 Routine Maintenance (1) Do turn off the unit and cut off the main power supply when cleaning the air conditioner to avoid electric shock or injury. (2) Stand at solid table when cleaning the unit. (3) Do not clean the unit with hot water whose temperature is higher than 45°C to prevent fade or deformation. -
Page 24: Troubleshooting
Multi Variable Air Conditioners Cassette Type Indoor Unit Error Error Error Content Content Content Code Code Code Low Bus bar Voltage of High Bus bar Voltage of IPM Module Protection of Indoor Unit Indoor Unit Indoor Unit Current Detection Circuit Overcurrent Protection of Failure Startup of Indoor Malfunction of Indoor...