Gree GMV-ND28TD/A-T Owner's Manual
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Summary of Contents for Gree GMV-ND28TD/A-T
- Page 1 Owner's Manual Original Instructions Commercial Air Conditioners Multi Variable Air Conditioners One-way Cassette Type Indoor Unit Models: GMV-ND22TD/A-T GMV-ND28TD/A-T GMV-ND36TD/A-T GMV-ND45TD/A-T GMV-ND50TD/A-T GMV-ND56TD/A-T...
- Page 2 To Users Thank you for selecting Gree product. Please read this instruction manual carefully before installing and using the product, so as to master and correctly use the product. In order to guide you to correctly install and use our product and achieve expected operating effect, we hereby instruct as below:...
- 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 Notices (Please be Sure to Abide) ..............1 2 Product Introduction ...................... 4 2.1 Names of Key Components ..................... 4 2.2 Rated Working Condition ......................4 3 Preparations for Installation ..................4 3.1 Standard Fittings ........................4 3.2 Installation Position Selection .................... -
Page 5: Safety Notices (Please Be Sure To Abide)
Multi Variable Air Conditioners One-way Cassette Type Indoor Unit 1 Safety Notices (Please be Sure to Abide) WARNING: If not abide strictly, it may cause severe damage to the unit or the people. NOTICE: If not abide strictly, it may cause slight or medium damage to the unit or the people. This sign indicates that the operation must be prohibited. - Page 6 Multi Variable Air Conditioners One-way Cassette Type Indoor Unit Diameter of power cord must be large enough. Damaged power After the power cord is connected, cord and connecting wire must please install the cover of electric be replaced by specialized box to avoid danger.
- Page 7 Multi Variable Air Conditioners One-way Cassette Type Indoor Unit Volatile liquid like thinner or During Cooling mode, indoor gasoline will damage the temperature should not be set too appearance of air conditioner. low. Keep the difference between Please use soft dry cloth or wet indoor temp and outdoor temp within cloth with mild detergent to clean 5℃.
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Page 8: Product Introduction
Multi Variable Air Conditioners One-way Cassette Type Indoor Unit 2 Product Introduction 2.1 Names of Key Components Fig.2.1 2.2 Rated Working Condition Indoor Side Condition Outdoor Side Condition Test condition Dry Bulb Temp℃ Wet Bulb Temp℃ Dry Bulb Temp℃ Wet Bulb Temp℃ Rated Cooling Rated Heating 3 Preparations for Installation... -
Page 9: Installation Position Selection
Multi Variable Air Conditioners One-way Cassette Type Indoor Unit Name Appearance Q'ty Usage To be used together with the M10 Washer hanger bolt for installing the unit. To be used connect the panel to Tapping screw the main body. Insulation To insulate the gas pipe Insulation To insulate the liquid pipe... -
Page 10: Requirements Of Communication Wire Selection
Multi Variable Air Conditioners One-way Cassette Type Indoor Unit 3.3 Requirements of Communication Wire Selection NOTE! If air conditioner used under strong electronic-magnetic interference circumstance, STP (shielded twisted pair) communication cable must be adopted. 3.3.1 Selection of Communication Wire between Indoor Unit and Wired Controller Fig.3.3.1 Total length of communication line... -
Page 11: Wiring Requirement
Air Switch Capacity Model Power Cord Size Area of Ground Wire Area of Power Cord (mm²) (mm²) GMV-ND22TD/A-T GMV-ND28TD/A-T GMV-ND36TD/A-T 208-230V ~ 60Hz GMV-ND45TD/A-T 220-240V ~ 50Hz GMV-ND50TD/A-T GMV-ND56TD/A-T NOTES! ① An all-pole disconnection switch having a contact separation of at least 3mm in all poles should be connected in fixed wiring. -
Page 12: Installation Instructions
Multi Variable Air Conditioners One-way Cassette Type Indoor Unit 4 Installation Instructions 4.1 Indoor Unit Installation 4.1.1 Ceiling Opening Dimension and Suspension Bolt Position. Unit:mm Fig.4.1.1 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;... - Page 13 Multi Variable Air Conditioners One-way Cassette Type Indoor Unit (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. The washer fixing plate will prevent the washer from falling.
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Page 14: Refrigerant Pipe Connection
Multi Variable Air Conditioners One-way 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. (2) Tighten the flaring nut with torque wrench. Fig.4.2 Pipe diameter(mm) Torque(N•m) - Page 15 Multi Variable Air Conditioners One-way 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, thickness≥1.5mm). (2) Keep drainage pipe short and sloping downwards at a gradient of at least 1% for preventing forming air bubbles.
- Page 16 Multi Variable Air Conditioners One-way Cassette Type Indoor Unit Unit: mm Fig.4.3.3 model A(mm) B(mm) C(mm) GMV-ND22TD/A-T GMV-ND28TD/A-T GMV-ND36TD/A-T 1090 1040 GMV-ND45TD/A-T GMV-ND50TD/A-T GMV-ND56TD/A-T (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.
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Page 17: Panel Installation
Multi Variable Air Conditioners One-way Cassette Type Indoor Unit 2) If communication wire is not connected, communication malfunction “C0” will occur after 60s of energizing. In this case, the water pump operates automatically. Check if the water pump drains normally drains normally through drainage port. The water pump will stop automatically after running for 10min. - Page 18 Multi Variable Air Conditioners One-way Cassette Type Indoor Unit (3) Connect the decoration panel terminals (Female) to body terminals (male) as shown in Fig.4.4.3. Fig.4.4.3 4.4.2 Panel Installation (1) Remove the grille from the panel, and then open the horizontal louver. (2) Aim the screw hole on panel at the corresponding screw hole on main unit.
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Page 19: Wired Controller Installation
Multi Variable Air Conditioners One-way Cassette Type Indoor Unit 4.5 Wired Controller Installation Wired controller is optional accessory. If wired controller is needed, please contact your local dealer and install the wired controller according to the instruction manual. NOTE! Do perform the commissioning operation before first use, automatic addressing or other settings, please refer to the manual of ODU. -
Page 20: Connection Of Wire And Patch Board Terminal
Multi Variable Air Conditioners One-way 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 insulation of the wire end by stripping and cutting tool. 2) Remove the wiring screws on the terminal board. -
Page 21: Connection Of Communication Wire Between Indoor Unit And Outdoor Unit (Or Indoor Unit)
Multi Variable Air Conditioners One-way Cassette Type Indoor Unit Fig.5.2 (1) Detach the electric box lid. (2) Let the power cord pass through the wiring through-holes. (3) Connect the power cord to terminal "L,N, " (4) Fix the power cord with wiring clamp. 5.3 Connection of Communication Wire between Indoor Unit and Outdoor Unit (or Indoor Unit) (1) Detach the electric box lid. -
Page 22: Connection Of Communication Wire For Wired Controller
Multi Variable Air Conditioners One-way 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 23: Instructions On Connecting Wired Controller And Indoor Units Network
Multi Variable Air Conditioners One-way Cassette Type Indoor Unit Fig.5.4.3 5.5 Instructions on Connecting 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 24 Multi Variable Air Conditioners One-way Cassette Type Indoor Unit Fig.5.5...
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Page 25: Routine Maintenance
Multi Variable Air Conditioners One-way Cassette Type Indoor Unit 6 Routine Maintenance WARNING: 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... -
Page 26: Table Of Error Codes For Indoor Unit
Multi Variable Air Conditioners One-way Cassette Type Indoor Unit 7 Table of Error Codes for Indoor Unit Error Error Error Content Content Content Code Code Code Indoor Units Indoor Unit Error Jumper Cap Error Incompatibility Error Indoor Unit Network Indoor Fan Protection Low Air Quality Warning Address Error ODU-IDU Incompatibility...
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