Related Manuals for Gree GWHD(18)ND3CO
Summary of Contents for Gree GWHD(18)ND3CO
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Page 1: Heat Pump
+MULTI DUCTLESS INVERTER HEAT PUMP INSTALLATION MANUAL Models: GWHD(18)ND3CO GWHD(24)ND3CO GWHD(30)ND3CO GWHD(36)ND3AO GWHD(42)ND3AO... -
Page 3: Safety Precautions
SAFETY PRECAUTIONS Please read the following before installation. Recognize safety information. This is the safety-alert symbol. When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury. Understand these signal words: DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol. -
Page 4: Electrical Shock Hazard
SAFETY PRECAUTIONS C UTION • The unit should be installed and serviced only by trained, qualified installers and service mechanics. Untrained personnel can perform basic maintenance functions such as cleaning coils.All other operations should be performed by trained service personnel. •... -
Page 5: Suggested Tools
SUGGESTED TOOLS • Standard Wrench • Adjustable/Crescent Wrench • Torque Wrench • Hex Keys or Allen Wrenches • Drill & Drill Bits • Hole Saw • Pipe Cutter • Screw drivers (Phillips & Flat blade) • Manifold and Gauges • Level •... -
Page 7: Installation Site Instructions
INSTALLATION SITE INSTRUCTIONS Step 1 Installation Site of Indoor Unit Select a site that allows for the following: • Ensure the installation complies with the installation minimum dimensions and meets the minimum and maximum connecting piping length and maximum change in elevation. •... -
Page 9: Installation Dimensions
INSTALLATION DIMENSIONS Minimum indoor clearances Ceiling 6 in (0.15m) 5 in 5 in (0.13m) (0.13m) 6 ft (1.8m) Floor Minimum outdoor clearances Air inlet Air outlet Minimum Distances Outdoor Unit in (mm) 20 (500) 24 (610) 78 (2000) 12 (305) 20 (500) -
Page 10: Installation Of Indoor Unit
INSTALLATION OF INDOOR UNIT Step 2 Piping Design and Layout The piping design and layout are critical factors for the overall performance and reliability of the system. Find the desired locations for each indoor unit and the outdoor unit. Measure and record the piping length (L1,L2, L3….Ln) from the outdoor unit to each indoor unit. NOTE: Min. - Page 11 INSTALLATION OF INDOOR UNIT Piping Height Requirements The system piping layout must take in the constraints of vertical height on system performance.The outdoor unit has a vertical height limit in which it can properly circulate refrigerant in the system..Ln The maximum elevation (H2) between those The maximum elevation (H1) from the bottom two indoor units from bottom of one unit to...
- Page 13 INSTALLATION OF INDOOR UNIT Step 4 Drill Hole in Wall for Interconnecting Piping, Drain & Wiring If indoor unit refrigerant piping is going to exit from the rear: 1. It is recommended that the refrigerant pipe flare connectors extend through the wall to the outside.
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Page 14: Outdoor Unit Preparation
OUTDOOR UNIT PREPARATION Step 5 Install Ground Pad or Wall Hangers 1. Determine proper location for outdoor unit. 2. Follow all instructions provided by manufacturer for installing wall hangers or ground pad. 3. Verify the wall hangers or ground pad can safely support the weight of the outdoor unit. 4. -
Page 15: Installation Of Refrigerant Piping
INSTALLATION OF REFRIGERANT PIPING Step 6 Piping Connections C UTION Use refrigeration grade tubing ONLY. No other type of tubing may be used. Use of other types of tubing will void manufacturer’s warranty. Make sure there is enough piping to cover the required length between the outdoor and indoor unit. Piping Preparation •... -
Page 16: Indoor Unit
INSTALLATION OF REFRIGERANT PIPING Step 6 (Cont’d) Piping and Drain Hose Connections to Indoor Unit NOTE: For maximum serviceability, it is recommended to have refrigerant pipe flare connections and the drain connection on the outside. 1. Feed refrigerant pipes, drain hose and interconnecting wires assembly through wall hole from outdoor to the indoor space. - Page 17 INSTALLATION OF REFRIGERANT PIPING 8. Apply a small amount of refrigerant oil to the flare connection on the refrigerant pipes. 9. Properly align piping and tighten flare nut using a standard wrench and a torque wrench as shown in figure below: 10.
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Page 18: Piping Connections To Outdoor Unit
INSTALLATION OF REFRIGERANT PIPING Step 7 Piping Connections to Outdoor Unit 1. Remove service valve cover (if provided) to access the service valves and refrigerant ports.The outdoor unit refrigerant port sizes may vary. See System Requirement Section for refrigerant port sizes. 2. - Page 19 INSTALLATION OF REFRIGERANT PIPING 3. Apply a small amount of refrigerant oil to the flare connection on the refrigerant pipe. 4. Properly align piping and tighten flare nut using a standard wrench and a torque wrench as shown in the indoor piping section. 5.
- Page 20 INSTALLATION OF POWER AND WIRING Step 8 Indoor Unit Interconnecting Wire Connections W RNING Disconnect all electrical power to unit including disconnects, fuses and circuit breakers. 1. Open front cover of indoor unit and remove field wiring terminal block cover. 2.
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Page 21: Outdoor Unit Wire Connections
INSTALLATION OF POWER AND WIRING Step 9 Outdoor Unit Wire Connections W RNING Disconnect all electrical power to unit including disconnects, fuses and breakers. 1. Remove the service panel on right side of the outdoor unit. Multiple Port Conduit Mounting Panel 2. - Page 22 INSTALLATION OF POWER AND WIRING Step 9 (Cont’d) Multiple Port Wiring Diagram (Reference Only) 6. Tightly connect main power wires to outdoor unit terminal block per wiring diagram above. 7. Secure all wires inside wire clamp/strain reliefs.Verify wires are secure, not loose and no external force on wires affects the connections at the terminals.
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Page 23: Setting Master-Slave Indoor Units
INSTALLATION OF POWER AND WIRING Local codes may require a disconnect switch within sight of the indoor unit. Use a DFS Disconnect Switch Accessory Kit (Part No: DFS-SWITCH-A) to break wires going to the N(1), 2, 3, terminals on the indoor unit, as shown in the wiring diagram below: C UTION Never break or interrupt the ground wire with a switch or disconnect device. -
Page 24: Vacuum Testing
VACUUM TESTING Step 10 Leaking Test Leak test each indoor unit, one unit at a time. Repeat the leak test sequence for each indoor unit. 1. Connect the charging hose of the manifold valve to charge the end of the low-pressure valve. 2. - Page 25 VACUUM TESTING 5. Evacuate using either deep vacuum or triple evacuation method. 6. After evacuation is complete, fully close the low side of manifold gauge and stop operation of vacuum pump. 7. The factory charge contained in the outdoor unit is good for up to 25 ft. (8 m) of line length. NOTE: For refrigerant lines longer than 25 ft (8 m), add add’l refrigerant per foot of extra piping up to the maximum allowable length.
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Page 26: Start-Up
START-UP Step 12 Installing Photocatalytic Filter (optional) 1. Lift front panel and remove air filter. (Fig. a). 2. Attach photocatalytic filter onto air filter. (Fig. b). 3. Install air filter as shown; close panel. (Fig. c). Air Filter Photocatalytic Filter Fig. - Page 27 START-UP Indoor Unit 1. Do all Remote Control buttons function properly? 2. Do the display panel lights work properly? 3. Does the swing louver function properly? 4. Does the drain work? Outdoor Unit 1. Push the mode button to COOL and adjust the room setting to 61° F deg. Wait up to 3 minutes from compressor time guard.
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Page 28: Troubleshooting
TROUBLESHOOTING Troubleshooting This unit has onboard diagnostics. Informational and error codes will be displayed on the LED display on the front panel of the indoor unit in place of the temperature display.The unit will provide informational codes to alert the user of special system operations. Informational codes are not signs of system malfunctions or failures. -
Page 29: Authorized Indoor Unit Combinations
APPENDIX A Authorized Indoor Unit Combinations 18,000 BtuH Indoor Unit Size 30,000 BtuH Indoor Unit Size Dual Configuration 9K+9K 9+12 2 Zones 9K+12K 9+18 9+21 9+24 24,000 BtuH Indoor Unit Size 12+12 Dual Configuration 12+18 9K+9K 2 Zones 12+21 9K+12K 12+24 9K+9K 18+18... - Page 30 APPENDIX A Authorized Indoor Unit Combinations (Cont’d) 42,000 BtuH Indoor Unit Size 42,000 BtuH Indoor Unit Size 9+12 9+9+9+9 9+18 9+9+9+12 9+21 9+9+9+18 9+24 9+9+9+21 12+12 9+9+9+24 12+18 9+9+12+12 Dual Configuration 12+21 9+9+12+18 2 Zones 12+24 9+9+12+21 18+18 9+9+12+24 18+21 9+9+18+18 18+24 9+9+18+21...
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