Installation Manual
Contents
1. 5 Following the same wire colors and terminal references from the indoor unit tightly connect interconnecting wires to the outdoor unit terminal block per wiring diagram NOTE Crossing interconnecting wires will cause system malfunction and possible damage 6 Tightly connect main power wires to outdoor unit terminal block per system wiring diagram 7 Secure all wires inside wire clamp strain relief Verify wires are secure not loose and no external force on wires affects the connections at the terminals 8 Replace service panel on right side of the outdoor unit 9 Connect main power wires and conduit to unit disconnect switch box field supplied per manufacturer s instructions National Electrical Code NEC and local electrical codes A CAUTION e Electrical Disconnecting means must be provided and shall be located within sight and readily accessible from the unit e Failure to follow this caution may result in equipment damage or improper operation e All wires running from the indoor to outdoor unit must comply with National Electrical Code NEC and local codes e All wires must be connected firmly to terminal block to avoid unit malfunction overheating and possible fire hazard 20 TESTING AND INSPECTION Leaking Test 1 Connect the charging hose of the manifold valve to charge the end of the2. en When the filter is very dirty use warm water below 110 F CRESS cc to clean it and then dry filter before replacing z 4 Reinstall Filter Reinstall the filter and then close the panel cover tightly GREE GREE ELECTRIC APPLIANCES INC www greecomfort com PRODUCT amp 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 INSTALLATION INFORMATION Date Installed DEALERSHIP INS TALLER INFORMATION Company Name Address Phone Number Technician Name GREE Gree Electric Appliances Inc 2015 DFS VIR HP 1IN
3. 3 Compressor malefaction Outdoor control board malfunction Unstable supply voltage Outdoor control board malfunction 1 Voltage to reversing valve is less than 175V 2 Loose connections between reversing valve and control board 3 Reversing valve solenoid malfunction Outdoor contro board malfunction Notes 1 During defrosting process the heating indicator is for 10s and off for 0 5s 2 Refer to Service Manual for additional information 28 CARE AND CLEANING A WARNING Take notice of the following items before cleaning the Vireo Indoor wall unit e avoid electric shock or injury do not attempt to clean the unit unless it has been turned off and disconnected from the main power supply e Do not wash the unit with water this may cause an electric shock e During cleaning be sure to use a stable standing platform Air Filter Cleaning Changing your air filter on a regular basis prevents many problems Dirty air filters will affect the performance and the longevity of your unit It is recommended that air filters be cleaned every three 3 months To access and clean the filter 1 Open Front Panel Firmly grasp both sides of the front panel and pull upward to about 60 degree angle NOTE do not force panel open 2 Remove Filter Remove the filter as indicated in the figure at right 3 Clean Filter p o non RO i Use vacuum to clean the filter
4. SUGGESTED TOOLS e Standard Wrench e Adjustable Crescent Wrench e Torque Wrench e Hex Keys or Allen Wrenches e Drill amp Drill Bits e Hole Saw e Pipe Cutter e Screw drivers Phillips amp Flat blade e Manifold and Gauges e evel R410A Tool e Clamp on Amp Meter e Vacuum Pump e Safety Glasses e Work Gloves e Refrigerant Scale e Micron Gauge PART NAMES Indoor 3 Part Front Panel Aux Button Filter Horizontal Louver Remote Controller Inter Connection Wire Drain Hose Refrigerant Lines NM UA Nm Outdoor unit Air inlet Air outlet INSTALLATION SITE INSTRUCTIONS Indoor Unit Select a site that allows for the following KR WN 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 Air inlet and outlet will be clear of obstructions ensuring proper airflow throughout the room Condensate can be easily and safely drained All connections can be easily made to outdoor unit Indoor unit is out of reach of children A mounting wall strong enough to withstand four times the full weight and vibration of the unit Filter can be easily accessed for cleaning Leave enough free space to allow access for routine maintenance
5. 5 Individually insulate each refrigerant line to prevent sweating Piping Connections to Outdoor Unit 1 Remove service valve cover if provided to access the service valves and refrigerant ports 2 Carefully bend and adjust length of refrigerant pipes to meet outdoor unit service valves connections with proper tools to avoid kinks Service Valve Cover NOTE Use proper techniques to cut and re flare refrigerant pipes if required An R410A Flaring Tool is required for re flaring refrigerant pipes 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 Caretully tighten flare nuts to correct torque level referring to the Torque Table below Torque Table Pipe Diameter Nut Size Tightening Torque inch mm inch mm ft lbs N m 1 4 6 35 1 4 17 10 to 13 14 to 18 3 8 9 5 3 8 22 25 to 30 34 to 42 1 2 12 7 1 2 25 36 to 45 49 to 61 5 8 15 9 5 8 29 50 to 60 68 to 82 16 PIPING INSTALLATION 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 2 Locate drain tube on the left side of drain tray Twist drain tube counter clockwise and gently pull to remove from the drain tray Rubber Plug 3 Position drain tube on th
6. ill JN UL Jy La IJ CL CL CI CL CL CL CL CW OUTDOOR UNIT DIMENSIONS in mm Model A B C D VIROSHP115V1A ae b t pos G8 VIR12HP115V1A 2 e En 818 VIROSHP230V1A F Hes F 84 218 VIR12HP230V1A e d e He Bp VIRI8HP230V1A Uh Re e s 2 VIR24HP230V1A ne p d e VIR20HP230V1A ee s A De e VIR26HP230V1A Es 605 423 784 973 423 OUTDOOR UNIT INSTALLATION Ground Pad or Wall Hangers Installation 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 Verify the wall hangers or ground pad is level and meets all outdoor dimensional clearances Outdoor Unit Risers Installation If the outdoor unit requires added elevation above the ground installing riser legs will provide a sturdy and stable solution Follow all instructions provided by manufacturer for installing riser legs to outdoor unit NOTE Riser legs will also help absorb vibrations and noise while facilitating proper drainage NOTE To meet Florida Wind Load criteria the outdoor unit must be anchored to concrete pad using four 3 8 diameter Power Wedge Bolt Plus or equivalent with 1 in diameter fender washers Anchor bolts must be embedded into 3 000 PSI minimum concrete at a distance of 41 2 in fromany concrete edge The concre
7. 1 sec Off 13 flashes and 1 sec Off 12 flashes and 1 sec Off 8 flashes and 1 sec Off Possible Causes 1 Loose or bad connection between sensor and control board 2 Indoor ambient temperature sensor damaged 3 Control board malfunction 1 Loose or bad connection between sensor and control board 2 Indoor coil temperature sensor damaged 3 Control board malfunction 1 Loose or bad connection between sensor and control board 2 Outdoor ambient temperature sensor damaged 3 Control board malfunction 1 Loose or bad connection between sensor and control board 2 Outdoor coil temperature sensor damaged 3 Control board malfunction 1 Loose or bad connection between sensor and control board 2 Discharge temperature sensor damaged 3 Control board malfunction 1 Supply voltage on L1 and N is above 265Vac 2 Capacitor on control board malfunction 3 Outdoor control board malfunction 1 Supply voltage on L1 and N is below 150Vac 2 Capacitor on control board malfunction 3 Outdoor control board malfunction 1 IPM module malfunction 2 Outdoor control board malfunction 3 Compressor malfunction Capacitor malfunction Outdoor control board malfunction 1 Lack of thermal grease on IPM module 2 Heat sink radiator not tightly mounted 3 Control board malfunction 1 Wiring terminal OVC COMP is loose 2 Refer to the malfunction analysis in Service Manual 27 DIAGNOSTIC CODES Malfunction N
8. low pressure valve 2 Add dry nitrogen to a pressure of 200 Ibs Tightly close both high and low pressure valves 3 Leak test flare fittings with soap bubbles If no leak is detected release nitrogen A CAUTION Use vacuum pump rather than refrigerant to discharge air when installing the unit Vacuum Procedure Important Use a quality Micron Gauge to measure and validate the system vacuum 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 Open the lower pressure side of the manifold valve assembly and start the vacuum pump The switch at the high pressure side of the manifold valve assembly should be kept closed or evacuation does not fail 5 Operate vacuum pump until a vacuum of 500 microns or less is achieved The evacuation duration depends on the vacuum pump size and unit s capacity generally 20 minutes for the 9 000 BtuH units to 1 hour for a larger 36 000 BtuH unit 6 Close the manifold valves and shut off the pump Low pressure gauge j AN High pressure gauge a If vacuum holds below 700 microns for 15 4 Gauge manifold kit minutes the system can be considered dry and leak free Go to s
9. normal for the system to make slight cracking sounds from parts expanding and contracting during system starts and stops Solution The noises will discontinue as temperature equalizes after 2 or 3 minutes Cause There are a number of situations that will prevent the system from running Solution Check for the following Circuit breaker is tripped or turned off Power button of remote is not turned on Datteries in the remote controller are low Remote controller is in sleep mode or timer mode e Otherwise contact a qualified service professional for assistance Cause There are a number of reasons for inadequate cooling or heating Solution Check the following e Remove obstructions blocking airflow into the room e Clean dirty or blocked air filter that is restricting airflow into the system e Seal around door or windows to prevent air infiltration into the room e Relocate or remove heat sources from the room 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 24 TROUBLESHOOTING PROBLEM Water leaking from the indoor unit into the room Wireless remote controller does not work The unit will not deliver air Moisture or condensation on the discharge air louvers or outlet vents CAUSE SOLUTION Cause While it is normal for the system to generate condensate water in cooli
10. 12 305 20 500 24 610 12 305 moans GREE INDOOR UNIT INSTALLATION INDOOR UNIT DIMENSIONS in mm Model A B c VIRO9HP115V1A ie Qu 008 VIRT2HP115V1A ou 008 VIRO9HP230V1A hoo 008 VIRT2HP230V1A Dp Qu 008 VIRT8HP230V1A 0 GU 57 VIR24HP230V1A 77 55 77 VIR3OHP230V1A 1549 695 25 VIR36HP230V1A j 195 27 Installation of 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 4 Remove the mounting brackets from the indoor unit and position the mounting bracket on the wall in desired location Use centering mark on mounting bracket for centering the indoor unit on the wall 5 Mounting bracket must be installed horizontally and level right to left NOTE Condensate drain pan has built in pitch for proper drainage 6 Secure mounting bracket to wall with a minimum of five screws evenly spaced to properly support indoor unit weight NOTE It is recommended to install screw anchors for sheet rock concrete block brick and such type of walls 10 INDOOR UNIT INSTALLATION Mounting Bracket Diagrams and Dimensions 4 27 71 4 8 1 9 27 73 8 15 8 13 3 4 29 3 8 10 30 000 and 36 000 Unit OUTDOOR UNIT INSTALLATION Outdoor Unit Dimensions umm
11. 3 25 7 5 100 30 98 30 REFRIGERANT CHARGE Ty voltage p MESI EIE 9 000 115v 1ph 60hz R410A 42 3 1 2 0 21 20 12 000 115v 1ph 60hz R410A 47 6 1 35 0 21 20 9 000 208 230v 1ph 60hz R410A 45 9 1 3 0 21 20 12 000 208 230v 1ph 60hz R410A 47 6 1 35 0 21 20 18 000 208 230v 1ph 60hz R410A 56 4 1 6 0 21 20 24 000 208 230v 1ph 60hz R410A 77 6 2 2 0 54 50 30 000 208 230v 1ph 60hz R410A 84 7 2 4 0 54 50 36 000 208 230v 1ph 60hz R410A 91 7 2 6 0 54 50 ELECTRICAL REQUIREMENTS Unit Size Voltage Min Circuit Max Overcurrent Main Power BtuH Amps MCA Protection MOP Wire Size AWG 9 000 115v 1ph 60hz 12 20 12 12 000 115v 1ph 60hz 15 25 10 9 000 208 230v 1ph 60hz 9 15 14 12 000 208 230v 1ph 60hz 9 15 14 18 000 208 230v 1ph 60hz 16 25 10 24 000 208 230v 1ph 60hz 20 30 10 30 000 208 230v 1ph 60hz 20 30 10 36 000 208 230v 1ph 60hz 26 40 8 power wire from electrical panel to outdoor unit Notes 1 System must be on a single dedicated circuit 2 Main power is supplied to the outdoor unit 3 Use table above to size over current protection 4 Follow all local building codes and NEC National Electrical Code regulations Interconnecting Cable Recommended cable 14 4 AWG stranded bare copper conductors THHN 600V unshielded wire Note Use shield cable if installation is in close proximity of RF and EMI transmitting devices e Condensate Drain Size 5 8 OD 7 16 ID GR EE
12. GREE MEO HIGH WALL DUCTLESS AIR CONDITIONING amp HEATING SYSTEM INSTALLATION MANUAL Models VIRO9HP115V1A VIR18HP230V1A VIR12HP115V1A VIR24HP230V1A VIRO9HP230V1A VIR30HP230V1A VIR12HP230V1A VIR36HP230V1A Thank you for choosing a Vireo Heat Pump for your customer Please read this installation manual carefully before installing and starting up the Vireo 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 Salet PIecalitiOls ata pein ale qb m de Re ERRORS 2 3 NOMEN HARE sas Get eH EUR e nen etta aout SR pe 4 System M A RA c 5 Suggested Tools Dub e i ena ende 6 PArENAMES sa eoe valute md mda od Installation Site Instructions 8 9 Indoor Unit Installation 10 11 Outaoor Unit Installation uada otto Ee e ae t Een od a ae at 12 13 Piping dDStallatiOnt e No hoa 14 17 Power and Wiring Installation 18 20 Testing and Inspection 21 23 MOUDIESHOONN die tulle iedee 24 25 DigQhOSUC COOBS cessaire aerae vo a ebde ae 26 28 Care and Cleaning is scd et bu UEM be wh edd 29 SAFETY PRECAUTIONS Please rea
13. Install at least 10 ft 3 m away from the antenna of TV set or radio Operation of the air conditioner may interfere with radio or TV reception in areas where reception is weak An amplifier may be required for the affected device 10 Do not install in a laundry room or by a swimming pool due to the corrosive environment Minimum Indoor clearances Ceiling A 6 in 0 15m INSTALLATION SITE INSTRUCTIONS Outdoor Unit Select a site that allows for the following Outdoor location meets all minimum installation clearances defined below Sound from outdoor unit will not annoy neighbors All connections can be easily made to indoor unit Air inlet and outlet will be clear of obstructions to ensure proper airflow Mm BR GW N Wall or roof is strong enough to withstand the full weight and vibration of the outdoor unit for wall or roof installation only Outdoor unit is out of reach of children and does not obstruct walkways Outdoor unit is not exposed to direct sunlight excessive dust or strong wind Condensate water can drain freely during heating NA Maintenance and repairs be easily performed the outdoor unit 10 Ensure the installation complies with the minimum and maximum connecting piping length and maximum change in elevation as defined in the System Requirements section Minimum Outdoor Clearances A Air inlet Outdoor Unit Minimum Distances in mm 20 500
14. TERRA VIREO Cooling Capacity 09 9 000 BTUH 12 12 000 BTUH 18 18 000 BTUH 24 24 000 BTUH 30 30 000 BTUH 36 36 000 BTUH Model Type AC Cooling Only HP Heat Pump HC Heat Cool A H Product Type 5 System O Outdoor units H Indoor High Wall D Indoor Duct C Indoor Cassette F Indoor Floor Ceiling Revision Level Style Color Designation Electrical Rating 230V 208 230V 60Hz 1PH 115V 115V 60Hz 1PH SYSTEM REQUIREMENTS PIPE SIZE in mm P5 Voltage Liquid Line Suction Gas Line 9 000 115v 1ph 60hz 1 4 6 3 8 9 5 12 000 115v 1ph 60hz 1 4 6 1 2 12 9 000 208 230v 1ph 60hz 1 4 6 3 8 9 5 12 000 208 230v 1ph 60hz 1 4 6 1 2 12 18 000 208 230v 1ph 60hz 1 4 6 1 2 12 24 000 208 230v 1ph 60hz 1 4 6 5 8 16 30 000 208 230v 1ph 60hz 1 4 6 5 8 16 36 000 208 230v 1ph 60hz 1 4 6 5 8 16 REFRIGERANT LINE LENGTHS ft m Unit Size Min Line Pre Charge Max Line Max BtuH Voltage Length Line Length Length Elevation 9 000 115v 1ph 60hz 10 3 25 7 5 50 15 50 15 12 000 115v 1ph 60hz 10 3 25 7 5 50 15 66 20 9 000 208 230v 1ph 60hz 10 3 25 7 5 50 15 50 15 12 000 208 230v 1ph 60hz 10 3 25 7 5 66 20 66 20 18 000 208 230v 1ph 60hz 10 3 25 7 5 82 25 82 25 24 000 208 230v 1ph 60hz 10 3 25 7 5 82 25 82 25 30 000 208 230v 1ph 60hz 10 3 25 7 5 100 30 98 30 36 000 208 230v 1ph 60hz 10
15. act a qualified service professional for assistance Cause It is normal for the system to develop condensation or moisture on the discharge air louvers when cooling warm humid air for a long period of time Solution The condensation or moisture will disappear as the system cools and dehumidifies the room space GREE 25 DIAGNOSTIC CODES Troubleshooting The Vireo System 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 amp Remote Possible Causes Display Yellow Red System High Pressure 1 Over charged with refrigerant 2 Blocked or dirty outdoor coil 3 Extreme outdoor ambient conditions Indoor Anti Freeze Protection E2 3 flashes 1 Low return airflow and 2 Indoor fan speed is too low 1 sec Off 3 Indoor coil is blocked or dirty Refrigerant Leakage Protection FO 9 flashes 1 refrigerant leak s and 2 Indoor coil temperature sensor no calibrated 1 sec Off 3 Refrigerant flow is restricted ex valve exy debris Compressor High Discharge E4 7 flashes Please refer to the malfunction analysis discharge Temperature Protection and temperature overload in service manual 1 sec Off Overcurrent Protection E5 5 flashes 1 Supply voltage is unstable and 2 Supply voltage is too low and system load is too high 1 se
16. ame IPM Module Protection Indoor DC Fan Motor Malfunction Compressor De Synchronized Malfunction Power Factor Correction PFC Protection Outdoor Fan Motor Malfunction Incompatible Indoor and Outdoor Units Start Up Malfunction Compressor Phase Current Detection Malfunction DC Bus Voltage Level Dropping Malfunction Current Detection Malfunction Reversing Valve Malfunction Zero Crossing Detection Malfunction Defrosting Status Indoor Unit Display H5 H6 H7 HC LC Ut U2 U3 U4 U9 note 1 Outdoor Unit Indicators Yellow Red 4 flashes and 1 sec Off 14 flashes and 1 sec Off 14 flashes and 1 sec Off 16 flashes and 1 sec Off 16 flashes and 1 sec Off Possible Causes 1 IPM module over heating 2 Improper or Low voltage at the IPM module 3 IPM module malfunction 1 Loose connections between fan motor and control board 2 Fan motor or blower wheel bearings malfunction 3 Control board malfunction 1 Compressor voltage is not balance 2 Control board malfunction 3 Compressor malfunction 1 Mis wiring of the reactor filter and PFC capacitor 2 Reactor filter or PFC capacitor malfunction 3 Control board malfunction 1 Loose connections between fan motor and control board 2 Fan motor malfunction 3 Control board malfunction Indoor and outdoor units are not compatible 1 Over charged with refrigerant 2 Control board malfunction
17. c Off 3 Indoor coil is blocked or dirty Communication Malfunction E6 Continuous 1 Communication cable is mis wired between indoor On and outdoor units 2 Indoor or Outdoor control board malfunction High Temperature E8 6 flashes 1 Incorrect refrigerant charge level Resistant Protection and 2 Refrigerant metering device malfunction 1 sec Off 3 Compressor malfunction EEPROM Memory Malfunction EE 11 flashes Control board malfunction and 1 sec Off System Configuration C5 1 No jumper cap inserted on the control board Malfunction 2 Incorrect or damaged jumper cap on control board 3 Indoor and outdoor units are not compatible Pump Down or Gathering Fo 17 flashes Optional Service Mode Refrigerant Status and 1 sec Off 26 DIAGNOSTIC CODES Malfunction Name Indoor Ambient Temperature Sensor Malfunction Indoor Coil Temperature Sensor Malfunction Outdoor Ambient Temperature Sensor Malfunction Outdoor Coil Temperature Sensor Malfunction Outdoor Discharge Temperature Sensor Malfunction High DC Bus Voltage Protection Low DC Bus Voltage Protection Compressor Phase Current Protection Capacitor Charging Malfunction Module Temperature Sensor Malfunction Module Temperature Protection Compressor Overload Protection Indoor Unit Display F2 F3 F4 F5 P5 PU P7 P8 H3 Outdoor Unit Indicators Yellow Red 6 flashes and 1 sec Off 5 flashes and 1 sec Off 7 flashes and
18. d condensate hose with minimum 3 8 10 mm wall thermal pipe insulation 4 Bind refrigerant pipes the condensate hose and interconnecting cable together with cable ties at 12 inch intervals 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 Adjust the length and carefully bend refrigerant pipes to meet indoor unit refrigerant pipe connections with proper tools to avoid kinks T 3 Apply a small amount of refrigerant oil to the flare connection on the refrigerant pipes 1 320 Df 22807 gt Indoor Unit Piping y Taper Nut Piping hk Wrench a 7 y um Torque Wrench Torque Table Pipe Diameter Nut Size Tightening Torque inch mm inch mm ft lbs N m 1 4 6 35 1 4 17 10 to 13 14 to 18 3 8 9 5 3 8 22 25 to 30 34 to 42 1 2 12 7 1 2 25 36 to 45 49 to 61 5 8 15 9 5 8 29 50 to 60 68 to 82 15 PIPING INSTALLATION Refrigerant Piping Piping Connections to Indoor Unit con t 4 Properly align piping and tighten flare nut using a standard wrench and a torque wrench as shown in figure to the below Carefully tighten flare nuts to correct torque level referring to the Torque Table on page 15 NOTE Over tightening may damage flare connections and cause leaks
19. d the following before operation Recognize safety information A 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 DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE is used to highlight suggestions which will result in enhanced installation reliability or operation NOTE Your actual air conditioning amp heating system and related devices may differ from the images shown in this manual A WARNING This appliance is not intended for use by children without responsible adult supervision Proper care should be taken to ensure safety A WARNING Heat pumps air conditioners amp heating equipment should be installed started up and serviced only by qualified installers and service technicians Air conditioning heat pumps and refrigeration systems are hazardous due to high voltage electrical components high refrigerant pressures and moving parts SAFETY PRECAUTIONS A CAUTION e he unit should be installed and serviced only by trained qualified installers and service technic
20. e right side over the drain fitting Drain Push drain tube onto fitting and rotate clockwise to lock Verify drain tube is secure to prevent leaks 4 Insert drain plug into left side of drain tray fitting Verify plug is fully seated to prevent leaks Indoor Drain Piping The Vireo 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 A field supplied transition or adapter may be required en i T Drain hose 2 Apply pipe insulation to the entire drain line and joints a to prevent sweating Insulate 3 The through wall hole for the drain hose must be lower than drain hose the indoor wall unit drain outlet for a functional gravity drain system 4 Install field supplied drain hose with a downward slope from the Indoor wall unit drain outlet to the drain hose outlet Correct Incorrect Incorrect The drain hose The drain hose _ The drain hose slopes downward cannot raise upward cannot raise upward 5 Route the condensate drain hose in the safety location to dispose of the condensate water e GREE 17 POWER AND WIRING INSTALLATION System Wiring Diagrams SS Eee Indoor Unit 9 000 and 12 000 BtuH 115V Models 9 000 and 12 000 BtuH 230V Mod
21. els 18 000 and 24 000 BtuH 230V Models 30 000 and 36 000 BtuH 230V Models Indoor unit connection L2 L1 POWER 18 POWER AND WIRING INSTALLATION Indoor Unit Wire Connections A 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 Pull interconnecting wires up from back of indoor unit and position in close to the terminal block on indoor unit NOTE Record wire colors and terminal references for uses with Outdoor Unit wire connections Connecting Cable NOTE The indoor unit is powered from the outdoor unit depending on local code a disconnect switch may need to be installed to a power supply circuit 4 Replace field wiring cover and close front cover of indoor unit Indoor Disconnect Switch If required 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 termi
22. ians Untrained personnel can perform basic maintenance functions such as cleaning coils All other operations should be performed by trained service personnel e Owner should be cautioned that children should not play with the appliance WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death e Before installing servicing or modifying the system the main electrical disconnect switch must be in the OFF position There may be more than one disconnect switch Lock out and tag all switches with a warning label General Safety Precautions e A dedicated power supply circuit should be used in accordance with local electrical safety regulations and National Electrical Codes NEC e Ensure that the entire system is properly grounded e Use a properly sized circuit breaker to protect equipment against short circuit and overload conditions e The system must be positioned at least 5 feet from combustible surfaces e Observe all local codes and regulations Installation Site Instructions A proper installation site is vital for correct and reliable operation of the system Avoid the following installation locations e High heat sources vapors flammable gas or volatile liquids e High frequency electro magnetic waves generated by radio equipment welders or medical equipment GREE 3 NOMENCLATURE Example VIR24HP230V1AH VIR 24 HP 230V 1 Series Designation CROWN RIO
23. nals on the indoor unit as shown in the wiring diagram below iar rel POWER AND WIRING INSTALLATION Outdoor Unit Wire Connections A WARNING Disconnect all electrical power to unit including disconnects fuses and circuit breakers Lockout and tag all disconnect switches 1 Remove the service panel on right side of the outdoor unit 2 Insert interconnecting wires and main power wires through the wire holes on conduit mounting bracket Cable Cross Board eundi e H E i he AS NS J P EN Wire Hole 3 Secure main power conduit and inter EN connecting wire conduit if required with locking nuts to conduit mounting bracket 4 Open wire damp strain relief and adjust wire lengths for proper connections to the MU TI outdoor unit terminal block DS EN
24. nd When the outdoor unit is more than 30 feet above the indoor unit an oil return bend must be added for every 20 feet of connection pipe Oil return bend Indoor Condensate Drain Pipe Testing Oil return bend Carefully and slowly add 8 10 ounces of water to the indoor unit drain pan e Verify the water drains easily out the condensate drain hose e If water does not drain easily from the drain hose then remove kinks increase drain pitch or add an auxiliary condensate drain pump Start up Checklist CI Turn on main power to indoor and outdoor units e 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 e Verify the remote controller display turns ON and the indoor unit display is ON C Press the Mode button to Cooling Adjust the room setpoint to bring the system on in cooling mode The system should start cooling mode within 3 5 minutes e Verify the outdoor fan and compressor are operating e Verify the indoor fan is operating e Verify the indoor discharge air is cooling the room C Press the Mode button to Heating Adjust the room setpoint to bring the system on in cooling mode The system should start heating mode within 3 5 minutes e Verify the outdoor fan and compressor are operating e Verify the indoor fan is operating e Verify the indoor discharge air is cooling the room Press the OFF button on the remote con
25. ng 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 e The indoor unit is not level right to left Level indoor unit e The condensate drain pipe is restricted or plugged All restrictions must be removed to allow continuous drainage by gravity e f problem persists contact a qualified service professional for assistance Cause There are a number of possible reasons Solution Check the following e The remote controller was not matched to the indoor unit See matching instructions e The batteries might be low Change the batteries e The remote controller must be within 25 ft 7 5 m with no obstructions of the indoor unit If remote controller needs to be replaced contact a qualified service professional for assistance In the meantime use the Aux button to operate the system Cause There are a number of system functions that will prevent air flow Solution Check for the following e n heating mode the indoor fan may not start for three minutes if the room temperature is very low This is to prevent blowing cold air e In heat mode if the outdoor temperature is low and humidity is high the system may need to defrost for up to 10 minutes before beginning a heating cycle e n dry mode the indoor fan may stop for up to three minutes during the compressor off delay e Otherwise you should cont
26. ow Find and mark the proper location for the wall hole Use table below to determine recommended wall hole size for your unit size Table of Wall Hole Size per Unit Size Left Side Right Side Unit Size BtuH 9 000 12 000 Cut Piping 18 000 Hole 24 000 30 000 36 000 3 Cutthe wall hole with a 5 to 10 downward slant to the outdoors in 21 4 21 4 23 4 23 4 23 4 23 4 Wall Hole Size Diameter mm 55 55 66 66 66 66 4 Insert a wall sleeve into hole to prevent damage to refrigerant pipes insulation condensate drain hose and wiring Indoor 5 Proper weather proofing of the wall Wall surface and wall sleeve is essential to Hole Sleeve assure a trouble free installation Apply sealant caulking or equivalent weather proofing material around the perimeter of the wall sleeve interior amp exterior to eliminate outdoor air and water leaks into the living space Wall Hole Diagram NOTE Expandable foam insulation may be added to fill large wall gaps Apply per manufacturer s instructions Outdoor Seal Hole Hole Size 14 PIPING INSTALLATION Refrigerant Piping A CAUTION Use refrigeration grade piping ONLY Uses of other piping will void the Manufacturer s Warranty Piping Preparation 1 Do not open service valves or remove protective caps on pipes until all connections are made 2 Keep tubing free of dirt sand moisture and contaminants 3 Insulate each refrigerant pipe an
27. te thickness must exceed 1 5 times the anchor depth Condensate Drain Installation for Outdoor Unit During normal heating and defrost operation the outdoor unit will generate condensate water The condensate water should be routed to a safe location through the drain hose 1 LE LER TEN AN H ili DENN LIN HEN AN 222 1 Locate and select a drain hole on bottom of outdoor unit 2 Install the outdoor drain fitting into hole on the bottom of outdoor unit as shown 3 Connect the drain hose to drain fitting 4 Route drain hose to safe location for proper drainage of excess condensate water Drain Fitting Installation 5 All non used drain holes should be plugged GREE 13 PIPING 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 2 Use mounting bracket diagrams and dimensions to find and mark the proper location for the wall hole If refrigerant piping is going through the right or left side of front panel Carefully cut hole in the side of the front panel for piping to enter indoor unit as shown bel
28. tep 5 Nu VAC valve b If vacuum increases to 800 microns or greater u this is an indication of moisture in system Service port or a leak exist Identify leak and repair as Vacuum pump necessary after which repeat steps 4 and 5 If moisture is suspect purge system use triple e GRCC evacuation method using dry nitrogen 21 TESTING AND INSPECTION Vacuum Procedure con t 7 Confirm that manifold valves are closed and disconnect the vacuum pump 8 Open the service valves to the fully back seat position to let the refrigerant flow to the indoor unit and balance the pressure in system Important Do not allow air to enter the connection pipe when removing the hose 9 Replace service valve caps and tighten Pipe Testing Gauge manifold Pressure gauge low pressure Pressure gauge hi pressure Switch low pressure Connection pipe Cap Low pressure gauge C High pressure gauge CPI Ll Liquid valve Gas valve Cap J ai valve p 1 Service port Vacuum pump Vacuum pump Additional Charge The outdoor unit contains enough refrigerant charge for up to 25 feet from the factory When the piping is greater than 25 feet additional charging is necessary For the additional amount see the table below Model Add l Refrigerant Amount for Extra Pipe 9 000 18 000 0 21 oz ft 24 000 36 000 0 54 oz ft 22 TESTING AND INSPECTION Outdoor Oil Return Be
29. troller e Verify remote controller display turns OFF and the system shuts OFF GREE 23 TROUBLESHOOTING PROBLEM System does not restart Indoor unit emits unpleasant odor when started You hear a water flowing sound A thin fog or vapor coming out of the indoor unit when system is running You hear a slight cracking sound when the system stops or starts The system will not run The unit is not heating or cooling adequately Water leakage from the outdoor unit CAUSE SOLUTION 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 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 If odors persist contact a qualified service professional to clean the coil surfaces Cause It is normal for the system to make water flowing or gurgling sounds from refrigerant pressures equalizing when the compressor starts and stops Solution The noises should discontinue as the refrigerant system equalizes after two or three minutes Cause It is normal for the system to emit a slight fog or water vapor when cooling extremely humid warm air Solution The fog or water vapor will disappear as the system cools and dehumidifies the room space Cause It is
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