FLOOR/CEILING INSTALLATION MANUAL Models: Indoor Unit UMAT18HP230V1AF UMAT24HP230V1AF UMAT30HP230V1AF UMAT36HP230V1AF UMAT42HP230V1AF UMAT48HP230V1AF Outdoor Unit UMAT18HP230V1AO UMAT24HP230V1AO UMAT30HP230V1AO UMAT36HP230V1AO UMAT42HP230V1AO UMAT48HP230V1AO
Thank you for choosing a Universal Floor/Ceiling Unit for your customer. Please read this installation manual carefully before installing and starting up the Universal Floor/Ceiling Ductless 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Nomenclature . . . . . . . . . . . .
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. WARNING This mark indicates procedures which, if improperly performed, might lead to the death or serious injury of the user.
NOMENCLATURE Indoor Unit F Example: UMAT18HP230V1AC F Outdoor Unit Example: UMAT18HP230V1AO UMAT 18 HP 230V 1 A O Series Designation UMAT – U-Match Series Cooling Capacity 18 - 18,000 BtuH 24 - 24,000 BtuH 30 - 30,000 BtuH 36 - 36,000 BtuH 42 - 42,000 BtuH 48 - 48,000 BtuH Product Type S - System O - Outdoor Units H - Indoor High Wall D - Indoor Duct C - Indoor Cassette F - Indoor Floor/Ceiling Revision Level Style/Color Designation Model Type AC - Cooling Only HP - Heat Pump HC - Heat/Cool Electr
SYSTEM REQUIREMENTS REFRIGERANT LINE LENGTHS ft (m) PIPE SIZE in (mm) Unit Size (BtuH) Liquid Line 18,000 24,000 30,000 36,000 42,000 48,000 1/4 (6) 3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10) Suction/Gas Line Min Line Length 1/2 (12) 5/8 (15) 5/8 (15) 5/8 (15) 5/8 (15) 5/8 (15) 10 (3) 10 (3) 10 (3) 10 (3) 10 (3) 10 (3) Max. Pre-Charge Max Line Max Elevation Line Length Length (ID over OD) 25(7.5) 25(7.5) 25(7.5) 25(7.5) 25(7.5) 25(7.
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 • R410A Flaring Tool • Clamp on Amp Meter • Vacuum Pump • Safety Glasses • Work Gloves • Refrigerant Scale • Micron Gauge 5
SYSTEM SCHMATIC Indoor Unit Air Outlet Air inlet System Components* Power Supply 2 1 1. Front Cabinet 2. Air Inlet 3. XK-60 Wired Controller (Optional) 4. Remote Controller 5. Drain Pipe 6. Gas Pipe 7. Liquid Pipe 3 8. Service Cover 9. Front Panel *Not all items included with equipment purchase 4 Air inlet Outdoor Unit Air outlet 9 8 7 6 5 CAUTION The refrigerant pipe, drain pipe and electrical wiring for this unit should be installed by a qualified HVAC professional only.
STANDARD PARTS Indoor Unit Accessories No.
INSTALLATION SITE INSTRUCTIONS Indoor Unit WARNING The unit must be installed in a location which can withstand four times the weight of the unit. Inadequate support may result in serious property damage and injuries. 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.
INSTALLATION SITE INSTRUCTIONS Outdoor Unit Select a site that allows the following: WARNING The unit should be installed level on a pad that can support twice the weight of the unit. If the outdoor unit will be exposed to strong winds, it must be adequately secured. CAUTION Do not install the unit at a location where the distance exceeds the maximum pipe length indicated in the table. The maximum length of the connection pipe is listed in the System Requirements section. 1.
INDOOR UNIT INSTALLATION Indoor Unit Dimensions INDOOR UNIT DIMENSIONS Inches (mm) Model A B C D H Weight (lbs) UMAT18HP230V1AF UMAT24HP230V1AF 48 (1220) 8 7/8 (225) 45 5/8 (1158) 11 (280) 27 1/2 (700) 86 88 UMAT30HP230V1AF UMAT36HP230V1AF UMAT42HP230V1AF 55 7/8 (1420) 9 5/8 (245) 53 1/4 (1354) 11 (280) 27 1/2 (700) 106 106 110 UMAT48HP230V1AF 66 7/8 (1700) 9 5/8 (245) 64 3/8 (1634) 11 (280) 27 1/2 (700) 130 Preparing Indoor Unit for Installation Begin the indoor unit installat
INDOOR UNIT INSTALLATION Laying Out Indoor Location The Universal Floor/Ceiling units allow for wall or ceiling mounting. Follow the instructions for the desire type of installation. Pape r Tem plate Wall Mounting Installation 1. Determine the mounting location on the wall for the indoor unit. Follow the selection criteria in the previous section. 2. Locate the factory supplied installation template included in carton and attach to the wall. 3.
INDOOR UNIT INSTALLATION Ceiling Mounting Installation late mp Te er p Pa 1. Determine the mounting location on the ceiling for the indoor unit. Follow the selection criteria in the previous section. 2. Locate the factory supplied installation template included in carton and attach to the ceiling. 3. Mark and drill the 4 mounting holes for the indoor unit. 4. Depending on the type of ceiling, attach the threaded hanger bolts securely to the support stud.
OUTDOOR UNIT INSTALLATION WARNING The unit should be located with the unit support feet firmly on the equipment pad. If the outdoor unit is exposed to wind, it must be properly secured.
OUTDOOR UNIT INSTALLATION Condensate Drainage of the Outdoor Unit The outdoor unit should be installed with a drain pipe to drain condensate water during the heating mode. 1. Insert the drain joint (included) into the selected hole located on the bottom of the base pan and then connect the drain hose (field supplied) to the drain joint. 2. All other holes must be sealed with plugs (included) to avoid water leaks, except for the drain pipe mounting hole. 3.
PIPING INSTALLATION Refrigerant Piping Drill Hole in Wall Indoor 1. Locate and mark proper location for the wall hole. Outdoor Wall Hole Sleeve 2. Cut the 2 3/4” wall hole with a 5° to 10° downward slant to the outdoors. Seal Hole 3. Insert a wall sleeve (field supplied) into hole to to prevent damage to refrigerant pipes, insulation, condensate drain hose and wiring. Hole Size Wall Hole Diagram 4.
PIPING INSTALLATION Indoor Unit Pipe Connections 1. Feed refrigerant pipes, drain hose and communication cable assembly through wall hole from outdoor to the Floor/Ceiling indoor unit. 2. Pull the piping assembly to the indoor unit. Carefully bend refrigerant pipes to meet indoor unit connection ports. Use proper tools to avoid kinks. Oil applied Copper 3. Add a small amount of refrigerant oil to (to reduce friction piping with the flare nut) both ends of the flare fittings. 4.
PIPING INSTALLATION Outdoor Unit Pipe Connections 1. Remove service valve cover (if provided) to access the service valves and refrigerant ports. Service Valve Cover 2. Carefully bend and adjust length of refrigerant pipes to meet outdoor unit service valve connections with proper tools to avoid kinks. Gas pipe Liquid pipe Pipe coupling 3. Add a small amount of refrigerant oil to both ends of the flare fittings. or 3-way valve 4.
PIPING INSTALLATION Indoor Condensate Drain Piping WARNING Observe all local sanitary codes when installing condensate drains. The drain piping should be as short as possible with a constant downward slope. It is recommended to install the condensate drain system with hard polyvinyl chloride (PVC) pipe and matching connectors. Use piping of the same or greater diameter as the unit connection. Typical Drainage System Ceiling Hangers Pitch the condensate drain pipe at a gradual 2.
POWER AND WIRING INSTALLATION WARNING 1. Before obtaining access to terminals, all electrical supply circuits must be disconnected. 2. Always use an independent circuit and provide an independent circuit breaker to supply power to the system. 3. Use a circuit breaker with adequate capacity to meet the requirements. 4. All circuit breakers or fuses for the indoor and outdoor units should be installed per the National Electric Code (NEC) and local regulations. 5.
POWER AND WIRING INSTALLATION Electric Wiring between the Indoor and Outdoor Units Wired Controller (optional) Wired Controller (optional) Comm Wires Single-phase units (18K-30K) Comm Wires Single-phase units (36K-48K) Indoor Unit Electrical Wiring Remove the left side panel and the electric box cover, and then insert the communication wire and power wire into the terminal board.
POWER AND WIRING INSTALLATION Tether Controller Wiring (Optional) Use a minimum 18-2 AWG wire (field supplied) to connect Tether Controller to the indoor unit. Route wire from Tether Controller into electrical box. Locate wire terminals H1 and H2. Connect Tether Controller wires to H1 and H2. Verify wires are secure, not loose and no external force on wires affects the connections at the terminals. Follow instructions provided with Tether Controller to complete the installation.
TESTING AND INSPECTION Pipe Testing Gauge manifold Pressure gauge (low-pressure) Pressure gauge (hi-pressure) Switch (low-pressure) Switch (hi-pressure) Connection pipe (to indoor unit) Connection pipe Cap Liquid valve Gas valve Service pipe Hose Service port Cap Cap Hose Hose with the valve pin Vacuum pump Leak Test Refrigerant lines should be pressurized prior to evacuating system to check for leaks. Use only dry nitrogen with a pressure regulator for pressurizing unit.
TESTING AND INSPECTION Vacuum Procedure Important: Use a quality Micron Gauge to measure and validate the proper system vacuum level achieved. Do not rely on the scale of a“bourbon tube”type gauge set to validate the depth and quality of the vacuum. 1. Remove the caps of the liquid valve, gas valve and service port. 2. Connect gauge manifold and micron gauge to the service ports provided at the liquid and suction service valves. 3. Connect a vacuum pump to the manifold gauge. 4.
TESTING AND INSPECTION Overview of Display Panel 1 1. Power Indicator: Power indicator will be on after electrical power is turned on, while it will be off after disconnecting power. 2. COOL Indicator: COOL indicator will be on after COOLmode is activated while it will be off after COOL mode is turned off. 2 3 3. Heat Indicator: HEAT indicator will be on after HEAT mode is activated, while it will be off after HEAT mode is turned off. 4. Indoor setpoint and temperature display.
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 when started Cause: Typically unpleasant odors are the result of mold or mildew forming on the coil surfaces or the air filter. Solution: Wash indoor air filter in warm water with mild cleaner.
TROUBLESHOOTING PROBLEM CAUSE/SOLUTION Water leakage from the outdoor unit. Cause: It is normal for the outdoor unit to generate condensate water in the reverse cycle heating and defrost mode. Solution: This is normal. No action is required. Water leaking from the indoor unit into the room. Cause: While it is normal for the system to generate condensate water in cooling mode, it is designed to drain this water via a condensate drain system to a safe location.
DIAGNOSTIC CODES The U-Match System has on board diagnostics. The indoor unit and Tether Controller will display error codes. The following is a summary of the codes with explanation: Error Codes No. 1 2 3 4 5 6 Error Code E1 E2 E3 Origin of Malfunction Description High Pressure Protection High Pressure Switch If outdoor unit detects the high pressure switch is cut off for 3-sec successively, high pressure protection will occur.
DIAGNOSTIC CODES Error Codes No. 7 8 9 10 11 12 13 Error Code Malfunction Name Origin of Malfunction E9 Condensate Overflow Protection Overflow Switch If indoor unit detects the condensate overflow switch warning for 8-sec successively, the system will enter condensate overflow protection. The unit will shut off and will not recover automatically. Switch unit off and then switch it on to eliminate this malfunction.
DIAGNOSTIC CODES Error Codes No. Error Code Malfunction Name Origin of Malfunction Description 14 ee Outdoor Drive Memory Chip Malfunction Outdoor Drive Board If the memory chip of outdoor drive circuit board fails, the unit will not start. The unit will not recover automatically. If thermo junction cannot be eliminated after switching off the unit and then energizing the unit several times, replace the outdoor drive circuit board.
GREE ELECTRIC APPLIANCES, INC. www.greecomfort.com PRODUCT & INSTALLATION RECORD For your convenience, please record the model and serial numbers of your new equipment in the spaces provided. This information, along with the installation data and dealer contact information, will be helpful should your system require maintenance or service. UNIT INFORMATION Outdoor Unit: Model No. Serial No. Indoor Unit: Model No. Serial No.
