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Summary of Contents for Gree MULTI18HP230V1BO
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Page 1: Installation Manual
DUCTLESS INVERTER HEAT PUMP INSTALLATION MANUAL Models: MULTI18HP230V1BO MULTI24HP230V1BO MULTI30HP230V1BO MULTI36HP230V1BO MULTI42HP230V1BO... -
Page 2: Table Of Contents
Thank you for choosing a Ductless Heat Pump for your customer. Please read this installation manual carefully before installing and starting up the Multi21 System.Take a moment to fill out the product and installation form on the back cover. Retain both the manual and installation record for future reference. Table of Contents Safety Precautions . -
Page 3: Safety Precautions
SAFETY PRECAUTIONS Please read the following before installation. This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. This mark indicates procedures which, if improperly performed, W RNING might lead to the death or serious injury of the user. -
Page 4: Nomenclature
NOMENCLATURE Outdoor Unit... -
Page 5: System Requirements
SYSTEM REQUIREMENTS Unit Size (BtuH) Liquid Line in (mm) Suction/Gas Line in (mm) Port A 1/4 (6) 3/8 (9.5) 18,000 Port B 1/4 (6) 3/8 (9.5) Port A 1/4 (6) 3/8 (9.5) 24,000 Port B 1/4 (6) 3/8 (9.5) Port C 1/4 (6) 3/8 (9.5) Port A... -
Page 6: 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 Indoor Unit Select a site that allows for the following: 1. Ensure the installation complies with the installation minimum dimensions (defined below) and meets the minimum and maximum connecting piping length and maximum change in elevation as defined in the System Requirements section. 2. - Page 8 INSTALLATION SITE INSTRUCTIONS Outdoor Unit Select a site that allows the following: 1. Install the outdoor unit at a location that is capable of withstanding twice the weight of the unit. 2. Install the outdoor unit where it is convenient to connect refrigerant lines to the indoor units. 3.
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Page 9: Crown Indoor Unit Installation
CROWN INDOOR UNIT INSTALLATION Crown INDOOR UNIT DIMENSIONS – in (mm) Model CROWN09HP230V1A 37.8 (960) 12.6 (320) 8.1 (205) CROWN12HP230V1A 37.8 (960) 12.6 (320) 8.1 (205) CROWN18HP230V1A 37.8 (960) 12.6 (320) 8.1 (205) PIPE SIZE – in (mm) Unit Size (BtuH) Liquid Line Suction/Gas Line 9,000... -
Page 10: Terra Indoor Unit Installation
TERRA INDOOR UNIT INSTALLATION Terra INDOOR UNIT DIMENSIONS – in (mm) Model TERRA09HP230V1AH 34.1 (866) 11.5 (292) 8.2 (208) TERRA12HP230V1AH 34.1 (866) 11.5 (292) 8.2 (208) TERRA18HP230V1BH 40.1 (1018) 12.6 (319) 9.1 (231) TERRA24HP230V1BH 46.4 (1178) 12.8 (325) 10.4 (264) PIPE SIZE –... -
Page 11: Terra Indoor Unit Installation
TERRA INDOOR UNIT INSTALLATION Terra Unit Mounting Bracket Diagrams (inches) 9K and 12K Unit Left Right (Rear piping hole) (Rear piping hole) 18K Unit Right Left (Rear piping hole) (Rear piping hole) 24K Unit Right Left (Rear piping hole) (Rear piping hole) -
Page 12: Vireo Indoor Unit Installation
VIREO INDOOR UNIT INSTALLATION Vireo INDOOR UNIT DIMENSIONS – in (mm) Model VIR09HP230V1A 33.4 (848) 11.4 (290) 8.2 (208) VIR12HP230V1A 33.4 (848) 11.4 (290) 8.2 (208) VIR18HP230V1A 38.2 (970) 11.8 (300) 8.8 (224) VIR24HP230V1A 42.4 (1077) 12.8 (325) 9.7 (246) PIPE SIZE –... - Page 13 VIREO INDOOR UNIT INSTALLATION Vireo Unit Mounting Bracket Diagrams (inches) 21.4 9K and 12K Unit Right (Rear piping hole) Left (Rear piping hole) 18K Unit Right (Rear piping hole) Left (Rear piping hole) 24K Unit Right (Rear piping hole) Left (Rear piping hole)
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Page 14: Indoor Unit Installation - Piping Design And Layout
INDOOR UNIT INSTALLATION 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.Then measure and record the piping lengths and heights as directed below to qualify the piping design and layout. First, measure and record the piping length (L1,L2, L3….Ln) from the outdoor unit to each indoor unit. - Page 15 INDOOR UNIT INSTALLATION Piping Length Requirements The system piping layout must take in the constraints of horizontal length on system performance. The outdoor unit has a length limit in which it can properly circulate refrigerant in the system. L =L1 ...Ln The maximum total pipe length making The maximum equivalent pipe length from the outdoor...
- Page 16 INDOOR UNIT INSTALLATION 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...
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Page 17: Outdoor Unit Installation
OUTDOOR UNIT INSTALLATION Outdoor Unit Dimensions 35.1 13.4 27.6 38.0 15.6 22.0 18K Unit 14.5 35.1 13.4 31.1 38.6 17.3 24K Unit 22.0 14.5... - Page 18 OUTDOOR UNIT INSTALLATION Outdoor Unit Dimensions 36.2 14.6 31.0 38.4 17.3 30K Unit 15.7 24.0 40.0 14.3 43.4 42.5 17.3 36K and 42K Unit 24.8 14.8...
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Page 19: Outdoor Unit Installation
OUTDOOR UNIT INSTALLATION 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 20: Indoor Unit Installation - Mounting Bracket And Refrigerant Piping
INDOOR UNIT INSTALLATION High Wall Indoor Installation Install Mounting Bracket 1. Attach the mounting bracket to the indoor unit. 2. Find the horizontal center of the indoor unit. 3. Mark the center of the indoor unit on mounting bracket for future reference. NOTE: The center of the mounting bracket is not the center of the indoor unit. -
Page 21: Refrigerant Piping
INDOOR UNIT INSTALLATION Refrigerant Piping Drill Hole in Wall 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. In some situations field-fabricated piping extensions will be required to extend the indoor unit refrigerant flare connections to the outside of the wall. -
Page 22: Piping Installation
PIPING INSTALLATION WARNING Refrigerant Piping CAUTION C UTION WARNING Use refrigeration grade piping ONLY. Uses of other piping will void the Manufacturer’s Warranty. Piping Preparation • Do not open service valves or remove protective caps from tubing ends until all connections are made. - Page 23 PIPING INSTALLATION Refrigerant Piping Connections to Indoor Unit NOTE: For maximum serviceability, it is recommended to have refrigerant piping and drain connections on the outside. 1. Feed refrigerant pipes, drain hose and interconnecting wires assembly through wall hole from outdoor to the indoor unit. 2.
- Page 24 PIPING INSTALLATION Indoor Drain Piping How to Relocate Drain Hose from Left to Right Side (if required) 1. Locate drain plug on right side of the drain tray. Firmly grab it and remove from drain tray. Left Right 2. Locate drain tube on the left side of drain tray. Remove hose clamp and twist drain tube counter- clockwise and gently pull to remove from the drain tray.
- Page 25 PIPING INSTALLATION Indoor Drain Piping The indoor wall unit uses a gravity drain system.There is no internal condensate pump.The drain hose must slope downward with no kinks, raises or fluctuations. 1. Connect the field supplied drain hose to the outlet pipe of indoor wall unit.
- Page 26 PIPING INSTALLATION 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 vary with unit size. See System Requirement Section for refrigerant port sizes. 2. Carefully bend and adjust length of refrigerant Service Valve Cover pipes to meet outdoor unit service valves...
- Page 27 PIPING INSTALLATION Piping Connections to Outdoor Unit (con’t) 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.
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Page 28: Power And Wiring Installation
POWER AND WIRING INSTALLATION Outdoor Unit Electrical Diagrams To unit A To unit B 18K Unit To unit A To unit B To unit A To unit B To unit A To unit B connecting Power cord connecting cable cable connecting Power cord connecting... -
Page 29: Outdoor Unit
POWER AND WIRING INSTALLATION Outdoor Unit Electrical Diagrams 30K Unit To unit A To unit B To unit C To unit D To unit A To unit B To unit C To unit D To unit A To unit B To unit C To unit D To unit A... - Page 30 POWER AND WIRING INSTALLATION WARNING High Wall Indoor Wire Connection CAUTION W RNING WARNING Disconnect all electrical power to indoor and outdoor units including disconnects, fuses and circuit breakers. Lockout and tag all disconnect switches. 1. Open front cover of indoor unit and remove field wiring terminal block cover. 2.
- Page 31 POWER AND WIRING INSTALLATION WARNING Outdoor Unit Wire Connections CAUTION W RNING WARNING 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.
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Page 32: Power And Wiring Installation
POWER AND WIRING INSTALLATION Setting Master-Slave Indoor Units (24K Size Only) Typically, the outdoor unit will select a master indoor unit upon power up.A single indoor unit may be programmed at the master zone.The master zone will always have priority over the other indoor units. -
Page 33: Testing And Inspection
TESTING AND INSPECTION 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 34: Testing And Inspection
TESTING AND INSPECTION Using Vacuum Pump (con’t): 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. Disconnect charge hose from charge connection of the low side service valve. 8. -
Page 35: Start-Up
START-UP Start-up Checklist □ Turn on main power to all indoor and outdoor units. • Verify the system is not displaying an error code on the indoor unit display. □ Add batteries and press the ON button on the remote controller. •... -
Page 36: Troubleshooting
TROUBLESHOOTING PROBLEM CAUSE/SOLUTION System does not restart. Cause: The system has a built-in three-minute delay to prevent short and/or rapid cycling of the compressor. Solution: Wait three minutes for the protection delay to expire. Indoor unit emits unpleasant odor Cause: Typically unpleasant odors are the result of mold or mildew forming on when started the coil surfaces or the air filter. - Page 37 TROUBLESHOOTING PROBLEM CAUSE/SOLUTION Water leaking from the indoor Cause: While it is normal for the system to generate condensate water in cooling unit into the room. mode, it is designed to drain this water via a condensate drain system to a safe location. Solution: If water is leaking into the room, it may indicate one of the following.
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Page 38: Diagnostic Codes
DIAGNOSTIC CODES Troubleshooting The unit has onboard diagnostics. The outdoor unit will provide status indicators. The indoor wall unit and remote controller will display error codes. The following is a summary of the codes with explanation: Indoor Unit Outdoor Unit Indicators Malfunction Name Possible Causes &... - Page 39 DIAGNOSTIC CODES Outdoor Unit Indicators Indoor Unit Malfunction Name Possible Causes Display Yellow High Temperature 6 flashes 1) Incorrect refrigerant charge level Resistant Protection and 1 sec Off 2) Refrigerant metering device malfunction 3) Compressor malfunction Cold Air Protection 1) Indoor coil has not reach minimum heating temperature 2) Indoor ambient is abnormally cold 3) Indoor control board malfunction EEPROM Memory Malfunction...
- Page 40 DIAGNOSTIC CODES Outdoor Unit Indicators Indoor Unit Malfunction Name Possible Causes Display Yellow Indoor Coil Freeze Protection - 4 flashes 1) Indoor coil has not reach minimum heating temperature Frequency Decrease/Limit Mode and 1 sec Off 2) Indoor ambient is abnormally cold 3) Indoor control board malfunction Pump Down or Gathering 17 flashes...
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Page 41: Diagnostic Codes
DIAGNOSTIC CODES Outdoor Unit Indicators Indoor Unit Malfunction Name Possible Causes Display Yellow Incompatible Indoor and 16 flashes Indoor and outdoor units are not compatible Outdoor Units and 1 sec Off Defrosting Status note 1 16 flashes and 1 sec Off Compressor Phase Current 1) IPM module malfunction Protection... -
Page 42: Appendix A
APPENDIX A Authorized Indoor Unit Combinations Outdoor 2-Zone 3-Zone 4-Zone 5-Zone Model Size 9+12 9+9+9 9+12 9+9+12 9+18 9+9+18 12+12 9+12+12 12+12+12 12+18 18+18 9+9+9 9+9+12 9+9+9+9 9+12 9+9+9+12 9+18 9+9+18 9+24 9+9+24 9+9+12+12 12+12 9+12+12 9+12+18 12+18 12+12+12 12+24 18+18 12+12+18 18+24... -
Page 43: Limited Warranty
LIMITED WARRANTY GREE distributor (hereinafter “Company”) warrants this product against failure due to defect in materials or workmanship under normal use and maintenance as follows.All warranty periods begin on the date of original installation. If the date cannot be verified, the warranty period begins one hundred twenty (120) days from date of manufacture.
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