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Owner's Manual
Original Instructions
Commercial Air Conditioners
Multi Variable Air Conditioners
Cassette Type Indoor Unit
Models:
GMV-ND07T/D-T(U) GMV-ND09T/D-T(U)
GMV-ND18T/D-T(U) GMV-ND22T/D-T(U)
GMV-ND36T/D-T(U) GMV-ND42T/D-T(U)
GMV-ND12T/D-T(U)
GMV-ND24T/D-T(U)
GMV-ND48T/D-T(U)
GMV-ND15T/D-T(U)
GMV-ND30T/D-T(U)
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Table of Contents
Related Manuals for Gree GMV-ND07T/D-T(U)
Summary of Contents for Gree GMV-ND07T/D-T(U)
- Page 1 Owner's Manual Original Instructions Commercial Air Conditioners Multi Variable Air Conditioners Cassette Type Indoor Unit Models: GMV-ND07T/D-T(U) GMV-ND09T/D-T(U) GMV-ND12T/D-T(U) GMV-ND15T/D-T(U) GMV-ND18T/D-T(U) GMV-ND22T/D-T(U) GMV-ND24T/D-T(U) GMV-ND30T/D-T(U) GMV-ND36T/D-T(U) GMV-ND42T/D-T(U) GMV-ND48T/D-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 2.3 The Range of Production Working Temperature ..............2 3 Preparations for Installation ..................2 3.1 Standard Fittings ........................2 3.2 Installation Position Selection .................... -
Page 5: Safety Precautions
Multi Variable Air Conditioners Cassette Type Indoor Unit 1 Safety Precautions This product can’t be installed at corrosive, inflammable or explosive environment or the place with special requirements, such as kitchen. Otherwise, it will affect the normal operation or shorten the service life of the unit, or even cause fire hazard or serious injury. -
Page 6: Product Introduction
Multi Variable Air Conditioners Cassette Type Indoor Unit If the product needs to be installed, moved or maintained, please contact our designated dealer or local service center for professional support, otherwise our company would bear no legal reliability for the related damages arising therefrom. 2 Product Introduction 2.1 Names of Key Components Fig.2.1.1... -
Page 7: Installation Position Selection
Multi Variable Air Conditioners Cassette Type Indoor Unit Name Appearance Q'ty Usage Prevent the washer from falling Washer fixing plate off. To connect with the hard PVC Drain Hose Assembly drain pipe. GMV-ND07~15T/D-T(U) Special Nut GMV-ND18~48T/D-T(U) Insulation To insulate the gas/liquid pipe. Locking joint bracket For Wiring Locking joint bracket... -
Page 8: Requirements For Communication Line
Multi Variable Air Conditioners Cassette Type Indoor Unit Unit: mm (inch) Model GMV-ND07~22T/D-T(U) 275(10-3/4) GMV-ND24~48T/D-T(U) 325(12-3/4) (1) The unit shall be installed in accordance with national standards or local regulations. (2) Only qualified personnel can carry out installation work, please contact with local dealer before installation. (3) Make sure all the installation work completed before energizing. -
Page 9: Wiring Requirements And Fuse Capacity
Multi Variable Air Conditioners Cassette Type Indoor Unit 3.3.2 Selection of Communication Wire between Indoor Unit and Indoor Unit (or Outdoor Unit) Fig.3.3.2 Total Length L (m/ft.) Of Communication Line Wire Size Material Type Remarks Between Indoor Unit (AWG) And Indoor (Outdoor) 1. -
Page 10: Installation Instructions
Multi Variable Air Conditioners Cassette Type Indoor Unit 4 Installation Instructions These cassette type indoor units are limited to be installed for one room. 4.1 Installation of Indoor Unit 4.1.1Ceiling opening Dimension and suspension bolt position. Fig.4.1.1 Unit: mm (inch) Model GMV-ND07~48T/D-T(U) 950(37 3/8) - Page 11 Multi Variable Air Conditioners Cassette Type Indoor Unit Fig.4.1.4 (2) Install the indoor unit temporarily. Assemble suspension bolt on the expansion bolt, attach the hanger bracket to the suspension bolt. Be sure to fix it securely by using a nut and washer from upper and lower sides of the hanger bracket.
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Page 12: Refrigerant Pipe Connection
Multi Variable Air Conditioners Cassette Type Indoor Unit 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 Multi Variable Air Conditioners Cassette Type Indoor Unit Fig.4.3.1 4.3.2 Drainage Pipe Installation (1) Drainage pipe should have the same diameter or larger diameter than the connecting pipes (PVC pipe, outside diameter 25mm (1 inch), thickness≥1.5mm (1/16 inch). (2) Keep drainage pipe short and sloping downwards at a gradient of at least 1% for preventing forming air bubbles.
- Page 14 Multi Variable Air Conditioners Cassette Type Indoor Unit Unit: mm (inch) Fig.4.3.3 Unit: mm (inch) Model GMV-ND07~48T/D-T(U) 220(8 5/8) 980(38 5/8) 930(36 5/8) (9) Drain pipes should have a downward slope of at least 1%~2%, in order to prevent pipes from sagging, install hanger bracket at intervals of 1000~1500mm (39-3/8~59 inch).
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Page 15: Locking Joint Installation
Multi Variable Air Conditioners Cassette Type Indoor Unit Unit: mm (inch) Model GMV-ND07~48T/D-T(U) 12~18(1/2~11/16) 4.3.3 Test of Drainage System (1) Please test drainage system after electric work is finished. Inject approximately 1L purified water to drain pan from air vent, ensure that not to splash the water over the electrical components (e.g. -
Page 16: Panel Installation
Multi Variable Air Conditioners Cassette Type Indoor Unit Fig.4.4.2 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 17: Installation Of Wired Controller
Multi Variable Air Conditioners Cassette Type Indoor Unit 4.5.2 Panel Installation (1) Detach the panel’s Corner Cap, there is a mark “piping side” on one of the 4 corners, adjust the panel direction so as to keep the mark and fittings on the same corner. (2) Temporality hang the panel to body (there is four hangers on each corner of the panel, hang the hangers to corresponding hooks on the body), as shown in Fig.4.5.4. -
Page 18: Connection Of Wire And Patch Board Terminal
Multi Variable Air Conditioners Cassette Type Indoor Unit 5.1 Connection of Wire and Patch Board Terminal (1) The connection of wire (as shown in Fig.5.1.1) 1) Strip about 25mm (1 inch) insulation of the wire end by stripping and cutting tool. 2) Remove the wiring screws on the terminal board. -
Page 19: Connection Of Communication Wire Between Indoor Unit And Outdoor Unit (Or Indoor Unit)
Multi Variable Air Conditioners Cassette Type Indoor Unit Fig.5.2.1 (1) Detach the electric box lid. (2) Let the power cord pass through the wiring through-holes. (3) Connect wires according to Fig. 5.2.1. (4) Fix the power cord with wiring clamp. (5) The wire diameter of power cord can’t be less than 18AWG. -
Page 20: 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 21: 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 22: 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℃... -
Page 23: Troubleshooting
Multi Variable Air Conditioners Cassette Type Indoor Unit Error Error Error Content Content Content Code Code Code Quantity Of Group Control Water Temperature Sensor Filter Cleaning Reminder Indoor Units Setting Error Error Low Bus bar Voltage of High Bus bar Voltage of IPM Module Protection of Indoor Unit Indoor Unit...