Gree KWCA09A0 Installation, Operation And Maintanance Manual
Gree KWCA09A0 Installation, Operation And Maintanance Manual

Gree KWCA09A0 Installation, Operation And Maintanance Manual

High wall cooling only and heat pump ductless split systems

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HIGH WALL COOLING ONLY AND HEAT PUMP
DUCTLESS SPLIT SYSTEMS
STRAIGHT COOL/HEAT PUMP*
Nominal Circuit Capacities:
9,000, 12,000, 18,000, 24,000 Btuh
units.
9,000 & 12,000
18,000
24,000
Enviromaster International LLC
5780 Success Dr.
An ISO 9001-2000 Certified Company
Rome, NY 13440
www.enviromaster.com
P/N# 240006537 Rev. 1.0 [01/07]

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Summary of Contents for Gree KWCA09A0

  • Page 1 HIGH WALL COOLING ONLY AND HEAT PUMP DUCTLESS SPLIT SYSTEMS STRAIGHT COOL/HEAT PUMP* Nominal Circuit Capacities: 9,000, 12,000, 18,000, 24,000 Btuh units. 9,000 & 12,000 18,000 24,000 Enviromaster International LLC 5780 Success Dr. An ISO 9001-2000 Certified Company Rome, NY 13440 www.enviromaster.com P/N# 240006537 Rev.
  • Page 2: Safety Instructions

    ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS INSTALLATION, OPERATION AND MAINTENANCE MANUAL P/N 240006537 , Rev. 1.0 [01/07] This manual is intended as an aid to a qualified service personnel for proper installation, operation, and maintenance of EMI EnviroAir high efficiency R-410A Ductless Split Systems.
  • Page 3 ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS DANGER INSTALLER SUPPLIED ITEMS Tampering with the EMI EnviroAir • Main System Breaker: Sized per unit cooling system is dangerous and requirements, to be mounted adjacent may result in serious injury or to outdoor unit. death.
  • Page 4 ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS CHOOSING UNIT MODEL MODELS OFFERED Indoor Model # Outdoor Model # Duty Capacity Btuh Voltage KWCA09A0 K1CA9000A00 Cooling Only 9,000 115-1-60 KWCA12A0 K1CA2000A00 Cooling Only 12,000 115-1-60 KWCA18D0 K1CA8000D00 Cooling Only 18,000 208/230-1-60 KWCA24D0...
  • Page 5: Pre-Installation

    ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS PRE INSTALLATION Determine the best location for mounting CONTROLS AND COMPONENTS the indoor unit, it must be located a mini- Units are supplied with a wireless remote mum of 4 ft (6 ft or more recomended) from control, which communicates with the unit the floor and no less than 6”...
  • Page 6: Indoor Unit Installation

    ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS INDOOR UNIT INSTALLATION CAUTION Follow Instructions, failure to follow instructions may cause possible mal- function and void any warranty. Remove indoor and outdoor units from Locate area to install indoor unit the the carton/box. Indoor unit carton con- unit should be located a minimum of 6 ft.
  • Page 7 ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS INDOOR UNIT INSTALLATION Prepare the evaporator for mounting by removing the mounting bracket from If mounting the unit on an inside wall, use the rear of the indoor unit. Use a Phillips the knockouts provided on the left and head screwdriver to remove the unit pipe right sides of the unit to route the piping strap.
  • Page 8: Heat Pump Systems

    ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS INDOOR UNIT INSTALLATION Prepare unit line set connections Feed the 14 AWG interconnect wiring Rotate refrigerant line stubs gently to 90° between indoor and outdoor through (if mounting on an outside wall). For oth- the unit electrical connection (maxi- er line set configurations align the stubs mum number of 6 wires is required) (if...
  • Page 9: Outdoor Unit Installation

    ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS INDOOR UNIT INSTALLATION Install unit on mounting bracket Feed the line set stubs/condensate hose/ wiring connections through a ø 3” hole in the wall. Position the evaporator so that the “key” slots on the back of the unit slide onto the tabs on top of the mounting bracket.
  • Page 10: Indoor Unit

    ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS OUTDOOR UNIT INSTALLATION Refrigerant Line Set Piping Interconnecting line set between the outdoor Connect the line set to the stubs. Using unit and the indoor unit, must have both re- the 2 wrenches, 1 on the male and 1 on frigerant lines insulated as the expansion the female tighten the fl...
  • Page 11 ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS OUTDOOR UNIT INSTALLATION Evacuation tem to remove all traces of moisture. See “System Start-Up” section to fine-tune the Gauges can now be attached to the service refrigerant charge. ports - SERVICE PORTS HAVE A 5/16” CONNECTION TO GAUGES, which is dif- Main Power Wiring ferent from the norm for R-22.
  • Page 12 ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS OUTDOOR UNIT INSTALLATION Electrical Wiring Installation outdoor unit must be a point to point i.e. CAUTION the terminal that the wire is attached to on the outdoor unit must be the same termi- Electrical Wiring should be done by a nal it is wired to in on the indoor unit.
  • Page 13: Heat Pump Wiring

    ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS OUTDOOR UNIT INSTALLATION HEAT PUMP WIRING Outdoor 1 2 3 L3 L4 L1 L2 If the system is a heat pump the defrost unit Note: use of colored wire (supplied with sensor must be connected from the in- line set) and defrost sensor connected door unit to the defrost sensor in the out- ������...
  • Page 14: System Start-Up

    ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS OUTDOOR UNIT INSTALLATION 12) Condensate Hose: The unit is provided with approximately All condensate hose extensions should be 18” of condensate hose connected. Hose in accordance with local building codes. connection is sized to accept a 3/4” OD or Remember water only flows downhill to 5/8”...
  • Page 15: Superheat Charging Chart

    ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS Start the indoor unit, cooling mode is Note: If interconnect is less then 16 only allowed when the outside ambient feet a small amount of refrigerant may temperature is above 60° F to prevent need to be reclaimed to achieve the damage to the compressor.
  • Page 16: Field Charging

    ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS FIELD CHARGING Instructions: 1. Measure suction pressure and deter- 4. Determine from the table what the mine evaporator-refrigerant temperature superheat should be for the indoor and on R410A scale of low-side gauge. outdoor temperatures. 2.
  • Page 17 OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12 OPERATION AND MAINTENANCE SECTION FOR KWCA/ K1CA18/24 & KWHA/K1HA18/24 model follows this section Guide to features and their function There are many models, features and appearance will vary. The figure shown is representative of the operation of 9,000/12,000 Btuh systems. Air return grill Takes in the indoor air Push down the air inlet grille and the push both sides of air inlet...
  • Page 18: Remote Control Operation

    OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12 Remote Control Operation This button, when pressed, starts operation and stops when pressed again. www.enviromaster.com EnviroAir High Wall Ductless Split Systems...
  • Page 19 OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12 Remote Control Operation Note: Wait 3 minutes before restarting the unit. Selecting MODE of OPERATION To select operating mode, point the remote control toward the indoor air conditioning unit: 1) Press the ON/OFF button to START. 2) Press the MODE button to step through the operating modes:...
  • Page 20 OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12 Remote Control Operation Temperature adjustment in AUTO SELECT mode To adjust the air temperature during AUTO SELECT mode, point the remote control toward the indoor air conditioning unit: 1) Press the button once. To raise the set point temperature 1°C or 1°F.
  • Page 21 OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12 Remote Control Operation Up/down air flow direction adjustment The up/down air flow direction can be adjusted by pressing the VANE CONTROL button on the remote control, each time this button is pressed, the vane angle changes in the following sequence: (AUTO) •...
  • Page 22 OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12 Remote Control Operation Setting the time clock button When batteries are inserted, the time will flashing automatically be set to 12:00 AM. Back Front 1) With the back cover off, press the CLK button with the tip of a ball pen, etc. The time indicator will flash, the time can now be set.
  • Page 23 OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12 Remote Control Operation How to set the ON timer 1) Press the AUTO START button to set the ON timer mode during operation. Each time the button is pressed, the ON timer mode alternates between ON and OFF. 2) Set the time on the timer using the HOUR and MIN buttons.
  • Page 24: Features Of Heating Operations

    OPERATION SECTION FOR KWCA/K1CA09/12 & KWHA/K1HA09/12 Features of Heating Operations Defrosting Important: When the outdoor air temperature is very Heating operation will cease at ap- proximately 15° F outdoor tempera- low and humidity is very high, frosting will occur in the heat exchanger of the outdoor ture due to a sensor located in the unit, which has negative impacts upon the outdoor unit.
  • Page 25 OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24 Guide to features and their function Air return grill Takes in the indoor air Push down the air inlet grille and the push both sides of air inlet grille at the bottom. Lightly push both sides of the air inlet grille at the botton and pull it to this side till a resistance is felt.
  • Page 26 OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24 Remote Control Operation When timer is set this light is lit. Air conditioner running light Digital display It can show set point temperature, fixed time or malfunction code. Fan speed indicator In high speed, three indicators are lit. In middle speed,two indicators are lit.
  • Page 27 OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24 Remote Control Operation This button, when pressed, starts operation and stops when pressed again. (fixed direction) This button is used for selection of the left/right air flow direction, whenever pressed the flap changes from osculating to fix, or from fixed to osculating. When air-conditioner is cool-only model, the HEAT mode is bypassed to FAN mode.
  • Page 28 OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24 Remote Control Operation Note: Wait 3 minutes before restarting the unit. Selecting MODE of OPERATION To select operating mode, point the remote control toward the indoor air conditioning unit: 1) Press the ON/OFF button to START. 2) Press the MODE button to step through the operating modes:...
  • Page 29 OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24 Remote Control Operation Temperature adjustment in AUTO SELECT mode To adjust the air temperature during AUTO SELECT mode, point the remote control toward the indoor air conditioning unit: 1) Press the button once, to raise the set point 1°C or 1°F.
  • Page 30 OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24 Remote Control Operation Up & down air flow direction adjustment The up/down air flow direction can be adjusted by pressing the OUT FLAP button on the remote control, each time this button is pressed, the vane angle changes in the following sequence: (AUTO) •...
  • Page 31 OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24 Remote Control Operation Setting the time clock button When batteries are inserted, the time will flashing automatically be set to 12:00 AM. Back Front 1) With the back cover off, press the CLK button with the tip of a ball pen, etc. The time indicator will flash, the time can now be set.
  • Page 32 OPERATION SECTION FOR KWCA/K1CA18/24 & KWHA/K1HA18/24 Remote Control Operation How to set the ON timer 1) Press the AUTO START button to set the ON timer mode during operation. Each time the button is pressed, the ON timer mode alternates between ON and OFF. 2) Set the time on the timer using the HOUR and MIN buttons.
  • Page 33: Maintenance

    ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS Features of Heating Operations Defrosting Important: Heating operation will cease at When the outdoor air temperature is very approximately 15° F outdoor temperature due to a sensor located in the outdoor unit. low and humidity is very high, frosting will This product does not contain supplemen- occur in the heat exchanger of the outdoor tal electric heat, therefore other means of...
  • Page 34: Troubleshooting

    ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS Maintenance To clean the surface of the air conditioner: After the operating season • Use a soft and dry cloth to wipe the 1) Set the temperature at 86°F or 30°C and air conditioner off, or use a vacuum operate in the fan status for about half a cleaner to clean it.
  • Page 35 ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS Basic Operation Characteristics Problem Cause Restart is delayed for 3 minutes after shut down to protect the unit. The unit can not be restarted just after Three-minute protection timer incorporated shut down. (RUN light is on) in the microcomputer actuates automatically.
  • Page 36 Phone: 1-800-228-9364 5780 Success Drive, Fax: 1-800-232-9364 Rome, NY 13440...

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