Gree GWH09AB-A3DNA1B User manual

HIGH-WALL DUCTLESS
AIR CONDITIONING &
HEATING SYSTEM
OWNER’S MANUAL
Models:
GWH09AB-A3DNA1B
GWH12AB-A3DNA1B
GWH12AB-D3DNA1B
GWH18AB-D3DNA1B
GWH24AB-D3DNA1B
Thank you for selecting GREE evo High Wall
Ductless Air Conditioner and Heating System.
Please read this manual carefully before operation
and keep it for further reference.
For more information, please visit our website at
www.greecooling.com.

Table of Contents
NOTE: Figures in this manual may differ from the appearance of the actual unit. Refer to the system itself or contact a
qualified service professional for further information.
2
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. 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.
Notices for operation................................................3
Typicaloperation........................................................5
Identifying major components.................................6
Wireless remote control operation..........................7
Emergency operation..............................................10
Cleaning and caring for your unit............................11
Troubleshooting......................................................12
Installation service..................................................15
Installation dimension diagram..............................16
Installing the indoor unit........................................17
Installing the outdoor unit......................................19
After installation and testing....................................20
Circuit diagrams......................................................20
Warranty...................................................................22

NOTICES FOR OPERATION
IMPORTANT OPERATING INFORMATION
PLEASE READ CAREFULLY BEFORE OPERATING THE UNIT.
WARNING
Disconnect unit from power source
when it will not be in use for long
periods of time. Dust can accumulate
in the unit, which could be a fire
hazard.
WARNING
Do not splice the power cord or use
an extension cord. Overheating can
occur, causing a fire hazard.
WARNING
If you smell or see smoke, turn unit off
and immediately contact a qualified
service professional.
WARNING
Keep combustible materials away from
the unit.
WARNING
Do not attempt to install, relocate or
repair the unit yourself. Contact a
qualified service professional.
WARNING
Do not cut or damage power and/or
controls wires. In case of damage,
immediately contact a qualified service
professional.
WARNING
Keep away from water. Do not clean
unit with water. This can cause electric
shock.
CAUTION
Do not insert your hands or any other
device into the air intake or outlet
vents.
NOTE
Keep windows and doors closed while
operating unit to save on electricity
cost.
3

IMPORTANT OPERATING INFORMATION
PLEASE READ CAREFULLY BEFORE OPERATING THE UNIT.
NOTE
Adjust vertical or lateral airflow using the
remote control.
NOTE
Do not block air intake or outlet vents on
either indoor or outdoor components. Doing
so may cause a malfunction of the unit.
NOTE
Do not direct the air toward animals or
plants.
NOTE
Do not allow cold air to directly blow on any
person for a prolonged time. This can cause
discomfort and worsen health problems.
NOTE
Do not use the unit to chill drinks,
preserving food or drying clothes.
NOTE
After the unit has been professionally
installed, choose a thermostat setting that
is comfortable for all household members.
Do not repeatedly or rapidly turn the unit on
and off as this can cause malfunctions.
NOTE
Keep space heaters and cooking units
away from air conditioner.
Swing louver Guide louver
NOTICES FOR OPERATION
4

In cooling mode, your EVO indoor unit will absorb heat from
the room, then the EVO outdoor unit will discharge the heat
to the outdoors. The EVO’s cooling capacity decreases
as the outdoor temperature increases. This causes the
EVO to work harder and longer to hold the selected room
temperature. Your evo unit will operate in cooling down to
41°F (5°C)
Indoor Coil Freeze Protection
• Frost may form on the indoor coil during cooling
operations when the outdoor temperature below 50°F
(10°C). Prolong operation may cause ice to form on the
indoor coil and block airflow. If the EVO indoor unit
microcomputer detects ice on the indoor coil it will stop the
compressor to defrost the coil and protect the unit.
In heating mode, your EVO outdoor unit will absorb heat
from the outdoor ambient, then the EVO indoor unit will
discharge the heat to the room. The EVO’s heating capacity
decreases as the outdoor temperature decreases. Your evo
unit will heat down to 5°F (-15°C).
During extreme cold outdoor temperatures, you may need
an additional heating source to supplement the EVO
heating output.
Defrost Function
• In heating mode, frost may form on the outdoor coil during
humid and low outdoor temperature conditions. Prolong
operation may cause ice to form on the outdoor coil and
block airflow. This will reduce the EVO’s heating capacity.
If the EVO microcomputer detects ice on the outdoor coil,
it will switch automatically to defrost mode to melt the ice
and clear the coil. During defrost mode, heating will be
discontinued and the EVO indoor unit will flash the Defrost
indicator. The compressor will continue to run while
indoor and outdoor fans will stop. It is normal to see steam
or vapor coming from the outdoor unit during defrost
mode. Defrost mode will terminate 12 minutes after
initiation of defrost cycle or when the outdoor coil
temperature is 50°F (10°C) or greater.
TYPICAL OPERATION
5
How your EVO unit works in cooling How your EVO unit works in heating

Indoor unit
Outdoor unit
Air in
Discharge
air
Air in
Discharge
air
Front panel
Filter Swing
louvers
Refrigerate lines
and control wires
Condesate
drainage
pipe
Remote
control
Remote receiver sensor
IDENTIFYING MAJOR COMPONENTS
6

AUTO
COOL
DRY
FAN
(Only for cooling and heating unit.)
HEAT
ON/OFF button
Press once to turn on unit. Press again to turn off
unit. Using the ON/OFF function will cancel TIMER
and SLEEP functions, but preset times will not be
affected.
MODE button
Set AUTO, COOL, DRY, FAN, or HEAT sequentially.
In Auto Mode, room temperature is not displayed.
NOTE: On power up, unit will default to AUTO
Mode. Initial room setting is 77°F (25°C), except in
HEAT Mode the initial setting is 82°F (28°C).
SLEEP button
Press this button to select SLEEP ON or SLEEP OFF.
This function must be set after the unit is powered on.
It will not function under AUTO or FAN modes.
FAN button
Select Low, Medium or High in Auto mode for default
fan speed. In DRY mode, only low fan speed can be
selected.
CLOCK button
Press the button, and clock icon will flash. Within
5 seconds, set the time by pressing + or – buttons to
set hours and minutes. Press button again to save
time setting. Note that this is the current time, not the
timer setting.
LIGHT button
Press the LIGHT button and the indoor unit display
turns ON. Press again, the indoor unit display turns
OFF.
TURBO button
In COOL or HEAT mode, use this button to turn
TURBO function on or off. The TURBO icon will
appear in the display when the function is on. When
changing modes or fan speeds, the function will be
canceled.
NOTE: Be sure there are no obstructions between
remote control and the EVO Indoor unit ( receiver
sensor)
• Do not drop or throw the remote control.
• Do not submerge remote control in water.
• Do not leave in direct sunlight.
• Do not leave near heat source.
Medium fan
Low fan
High fan
AUTO
WIRELESS REMOTE CONTROL OPERATION
Names and Functions of Remote Control Buttons
Remote
Control
Signal Transmitter
MODE
FAN
LIGHT
7

NOTE: Not every unit has each of the functions described below. If your unit does not come equipped with a certain
function, the button will be inactive.
X-FAN button
Pressing the X-FAN button in COOL or DRY mode
will keep the fan running for 10 minutes to dry the
indoor unit. After drying, X-FAN OFF is defaulted.
This function is not available in AUTO FAN or HEAT
modes.
- Button
Use this button to decrease temperature in HEAT or
COOL modes. Press button for 2 seconds to activate.
+ Button
Use to increase temperature settings in HEAT or
COOL mode.
NOTE: In heat, cool, and dry mode, the room
temperature setting will be displayed.
In AUTO mode, the temperature display is off and
the + and - Buttons are not used.
SWING UP and DOWN BUTTON
Use this function to control direction of air circulation.
Select from five louver positions available by pressing
the button. When the guide louver begins to swing up
or down, it turns off the SWING function and will
appear as the louver position is readjusting.
TIMER ON button
When TIMER function is activated, the (clock icon)
will blink and numerical display becomes the timer
readout. Press the + or – button to adjust time. Every
press of the + or – keys adjusts time by 1 minute.
Within 5 seconds of setting the timer, press the
TIMER ON button to set the timer. Please check the
clock setting for accuracy after setting timer.
TIMER OFF button
To cancel TIMER settings, press TIMER OFF button.
Clock icon will blink, and settings will be canceled.
I FEEL button
Press this button to activate I FEEL. When I FEEL
is active, the evo unit will use the room temperature
measured by the remote control.
TEMP button
This function not available.
Air button
This function not available.
Health button
This function not available.
WIRELESS REMOTE CONTROL OPERATION
Names and Functions of Remote Control Buttons
OFF
Remote
Control
-
+
TIMER
ON
TIMER
OFF
8

1. When the unit is powered on, press ON/OFF button to
start unit.
(NOTE: When unit is powered on, the guide louver of the
main unit will close automatically.)
2. Press MODE button and select desired running mode.
3. Press + or – button to set desired temperature. This
step is not necessary in AUTO mode.
4. Press FAN button to set fan speed: Low, Middle, High or
Auto.
5. Press to set the louver position or swing.
Optional Settings:
1. Press SLEEP button to set sleep.
2. Use TIMER ON and TIMER OFF buttons to set timer.
3. Press LIGHT button to illuminate display on the indoor
unit. (Not available on all units.)
4. Press TURBO ON or OFF to set Turbo function.
X-FAN MODE
This mode forces the indoor fan to continue running for
10 minutes after each cooling cycle to dry off the indoor
evaporator coil which helps to inhibit the growth of mold
and mildew.
TURBO MODE
This mode boost the cooling or heating air flow allowing the
system to reach preset room temperature in the shortest
amount of time.
AUTO RUN MODE
In AUTO mode, the system will automatically maintain a
room temperature between 64°F (17.8°C) and 77°F (25°C).
If the room temp is above 77°F (25°C) the system will
operate in COOL mode. If the room temp is below 64°F
(17.8°C) the system will operate in HEAT mode. If the room
temp is less than 77°F (25°C) and more than 64°F (17.8°C)
the system will be idle and the fan will run to circulate and
filter air. In this mode the set room temperature will not be
displayed on the remote. AUTO mode is the default setting
for the initial power on cycle.
SLEEP MODE
This mode is used to conserve energy. The system can be
programmed through the remote control to turn off after a
selected run time period. Sleep mode can be used when
the system is in COOL, HEAT or AUTO mode.
1
2
3
4
5
2
3
4
1
WIRELESS REMOTE CONTROL OPERATION
evo Features
DEHUMIDIFICATION (DRY) MODE
In dehumidification mode, the system dries, filters and
slightly cools room air temperature. Use of this mode does
not take the place of a dehumidifier.
SWING MODE
In this mode, the discharge air louvers can be positioned
for convenient airflow into the room. The discharge air
louvers will step one position at a time until the desired
position is selected.
LOCKING REMOTE CONTROL
In this mode, the remote control can be locked to prevent
system changes. To lock the remote control, press + and
- buttons simultaneously for 2 seconds. The lock icon will
flash three times and stay on signaling the remote control is
locked. To unlock the remote control, press + and - buttons
simultaneously for 2 seconds until the lock icon disappears.
TEMPERATURE DISPLAY
This mode allow you to select the system temperature
displays in either degree F or degree C. Simultaneously
hold the MODE and (-) minus buttons to toggle between
degree F and degree C.
9
Getting Started:

1. Find the battery cover on back of unit (see figure).
Depress the arrow, and slide battery case open.
2. Remove old batteries and replace with two new AAA
1.5 V batteries. Place batteries in positions indicated.
3. Slide battery case cover back into place.
4. Attach the back cover of wireless remote control.
(As shown in figure.)
NOTES:
• Always use all new batteries.
• If remote control will not be used for an extended period
of time, remove batteries to prevent leakage and
damage to unit.
• Make sure unit is in receiving range.
• Do not operate near television set or stereo or other
device that uses remote control.
• If wireless remote control does not operate normally
after batteries have been changed, remove the
batteries and wait 30 seconds. Replace batteries and
test unit again. If it still does not operate correctly,
replace batteries.
• The remote control can operate the unit from a distance
of up to 25 ft ( 7.6 m) as long as there are no
obstructions.
1
2
3
4
WIRELESS REMOTE
CONTROL OPERATION
Replacing Batteries
If the wireless remote control unit is lost or damaged, use
THE MANUAL OVERRIDE SWITCH to operate the unit.
Manual operation means the unit is operating in AUTO
mode. In AUTO mode, the system will automatically
maintain a room temperature between 64°F (17.8°C)
and 77°F (25°C). If the room temp is above 77°F (25°C)
the system will operate in COOL mode. If the room temp
is below 64°F (17.8°C) the system will operate in HEAT
mode. If the room temp is less than 77°F (25°C) and more
than 64°F (17.8°C) the system will be idle and the fan will
run to circulate and filter air.
Manual Override Operation:
• To activate Manual Override mode, press the Auto/Stop
button located under the front cover of the indoor unit.
(See figure below). In Manual Override mode, the
system will not respond to commands from the remote
control.
• To turn Manual Override Mode off, press the Auto/Stop
button again. Once off, the system will respond to the
remote control.
Manual Switch
AUTO/STOP
EMERGENCY OPERATION
10

1. Remove front panel for cleaning.
Using the figure at right as a guide, lift panel up and pull
out.
2. Wash the panel.
Wash with water, soft cloth or soft brush. Use only very
mild cleaners. Then dry completely.
NOTE: Take down the display panel before cleaning.
Never use water above 113°F (45°C) because it may
cause discoloration or damage to surface.
3. Replace front panel.
Fit the sides of the panel into slots as shown and push
panel into place.
CAUTION
• Turn off power and disconnect unit from power source before cleaning. Failure to do so could cause electric shock.
• Never spray water on either indoor or outdoor unit. This could cause damage or unit failure.
• Never use abrasive cleaners on indoor or outdoor unit. Use only slightly damp clean, soft cloth or very mild cleansers.
CLEANING AND CARING FOR YOUR UNIT
Cleaning the Front Panel Cleaning the Air Filter
CLEANING IS RECOMMENDED EVERY THREE
MONTHS.
NOTE: If the indoor unit is exposed to excessive dust,
cleaning may be necessary more often. Use caution
when removing the filter to avoid sharp metal extensions.
1. Remove air filter by tilting up the unit cover and pulling
filter free.
2. Clean air filter using a vacuum or warm water and mild
cleaner below 113°F (45°C). Water above 113°F (45°C)
can cause discoloration or damage. Air dry filter in the
shade. Never use fire to clean stains or debris on filter.
3. Reinsert the filter. See figure below. Align filter along
arrows. Then close unit.
11

WARNING
Do not attempt any repairs on the unit yourself. Incorrect repair can cause shock or fire. Always call a qualified service
professional. Using these Troubleshooting suggestions can save time when you contact the qualified service professional.
Air conditioner does not restart. Cause: The evo system has a built in
3 minute delay to prevent short and/or rapid
cycling of the compressor.
Solution: Wait 3 minutes for the protection
delay to expire.
Air conditioner emits unpleasant odor when
started.
Cause: Typically unpleasant odors are the
result of mold or mildew forming on the coil
surfaces or 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.
You hear a “water flowing” sound. Cause: It is normal for the air conditioning
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 2 or
3 minutes.
A thin fog or vapor coming out of the unit
when air conditioner is running.
Cause: It is normal for the air conditioning
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.
You hear a slight cracking sound when the
air conditioner stops or starts.
Cause: It is normal for the air conditioning
system to make “slight cracking” sounds
from parts expanding and contracting
during system starts and stops.
Solution: The noises should discontinue as
temperatures equalizes after 2 or 3 minutes.
PROBLEM CAUSE/SOLUTION
Wait
TROUBLESHOOTING
12

The unit will not run. 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.
• Batteries in the remote control are low.
• Remote control is in Sleep mode or Timer mode.
• Otherwise, you should contact a Qualified Service
Professional for assistance.
Heating or cooling not running efficiently. Cause: Your evo system is designed to operate at
peak efficiency for years with routine maintenance.
Solution: Check the following reasons for loss of
system efficiency:
• Remove obstructions blocking the return or discharge
air flow into the room.
• Clean dirty or blocked indoor air filter that is
restricting air flow into the system.
• Seal outdoor air leaks in the room space from door or
windows.
• Relocate ( if possible) other heating sources in the
room space.
Wireless remote control lost or does not
work.
Cause: There are a number of reasons for the remote
control not to work.
Solution: Check the following reasons for the remote
control not working:
• The batteries might be low, change the batteries.
• The remote control must be within 25 ft (7.6m) with
no obstructions of the indoor unit.
If remote control is lost or damaged and need to be
replaced, contract your qualified service professional
for assists. In the meantime, use the manual Override
Mode to operate the evo system.
Water leaking from indoor unit into the room Cause: It is normal for air conditioning system generate
condensate water in cooling mode. The evo system is
designed to effectively and efficiently collect and safely
drain the condensate water from the indoor unit to the
outdoors via a condensate drain tube.
Solution: Water leaking into the room indicates:
• The indoor unit is not level right to left. Level indoor
unit.
• The condensate drain tube is restricted or plugged. All
restricts must be removed to allow continuous gravity
force drainage.
• If problem persist, contact a qualified service
professional for assistance.
Water leakage in outdoor unit. Cause: It is normal for outdoor unit to generate
condensate water in reverse cycle heating mode and
defrost.
Solution: Water leaking from the outdoor unit is normal
in reverse cycel heating mode or defrost.
PROBLEM CAUSE/SOLUTION
TROUBLESHOOTING
13

The unit will not deliver air. Cause: There are a number of system functions that will
prevent the indoor fan from running.
Solution: Check for the following:
• In heating Mode, the indoor fan may not start for
3 minutes if the room temperature is very low to
prevent blowing cold air.
• In heat mode, if the outdoor temperature is low and
humidity is high the system may need to to defrost for
up to 12 minutes before beginning a heating cycle.
• In Dry Mode, the indoor fan may stop for up to
3 minutes during the compressor off delay.
• Otherwise, you should contact a Qualified Service
Professional for assistance.
Moisture or condensation on the discharge
air louvers or outlet vents.
Cause: It is normal for air conditioning 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.
PROBLEM CAUSE/SOLUTION
TROUBLESHOOTING
CAUTION: STOP OPERATION AND CALL FOR SERVICE IN THE FOLLOWING CIRCUMSTANCES:
• You hear a harsh or unusual sound during operation.
• Unusually foul odor is emitted during operation.
• Water is leaking in the room.
• Circuit breaker trips frequently, or unit stops abnormally often.
• Liquid is spilled into unit.
14

Important Information About
Installation
Installation must be performed by qualified service
professional according to codes and information in this
manual.
INSTALLATION SERVICE
Basic Requirements
Unit must be placed in the proper location. Observe these
considerations:
• Avoid areas with strong heat source, vapors, or flammable
materials or gases.
• Avoid areas where high frequency radio waves are
generated by transmitters, construction equipment or
medical equipment.
• Avoid areas where there is excessive salinity in the air.
• Avoid areas where there are oil fumes in the air.
• Avoid areas where sulfurous gas is emitted, such as areas
near hot springs.
• Other unusual circumstances as determined by installer.
Indoor Unit Placement Considerations
1. Place where there are no obstructions to airflow.
2. Place where condensing water can be easily removed
and unit can be easily connected to outdoor unit.
3. Install out of reach of children.
4. Install on solid surface that can support weight and
vibration and not contribute to vibration and noise.
5. Install where there is sufficient space for access in case
of need for routine maintenance. Unit should be at least
72 in. (183 cm) off the floor.
6. Install where there is easy access to air filter for
cleaning.
7. Observe all local building requirements and codes.
Outdoor Unit Placement
Considerations
1. Choose a location where noise and airflow will not
disturb neighbors, animals or plants.
2. Choose a location where there is sufficient ventilation.
3. Avoid obstructions to intake or outlet vents.
4. The location must withstand full weight and vibration of
unit and permit safe installation.
5. Select a dry location away from direct sunlight and
strong winds.
6. Select location with sufficient room for the unit with
convenient access for maintenance and repair.
7. Observe all local building requirements and codes.
Important Safety Considerations
1. Use only rated voltage installation and a dedicated
circuit.
2. Power source must be grounded. Connection to circuit
breaker box must allow for power surge or excessive
heat tripping of breaker. Always use a professional
electrician to install the unit.
3. Observe all local building requirements and codes
CAUTION:
• Be sure live wires and ground wire are properly
connected.
• Incorrect connection could cause fire.
Grounding Requirements
1. The air conditioner is a Type 1 electrical appliance.
Follow grounding requirements.
2. The yellow-green wire is the ground wire. Do not use for
any other purpose.
3. Grounding should follow local/national codes.
4. Reliable grounding means that the wires should not be
connected to water pipe, gas pipe, sewage pipe or any
other inappropriate location.
Other Considerations
1. Follow the wiring diagrams affixed to the unit for proper
installation.
2. The model and rated value of replacement fuses can be
found on the silk-screened information on the fuse
sleeve or controller.
3. The unit must be installed in accordance with national
wiring requirements.
4. Unit should not be operated by children, or by those with
limited physical, mental or sensory capacities unless
they are given special, supervised instructions.
5. Children should be supervised to make sure they do not
play with the appliance.
15

Space to the wall
Space to the ceiling
Space to the wall
Space to the wall
Air outlet side
Space to the floor
Above Above
Above
Space to the obstruction
Air outlet side
Space to the wall
Air inlet side
(15cm)
6 in.
Above
(15cm)
6 in.
Above
(15cm)
6 in.
118¹⁄₈ in.
(300 cm)
72 in.
(183 cm)
11³⁄₄ in.
(30 cm)
Above
11³⁄₄ in.
(30 cm)
Above
19³⁄₄ in.
(50 cm)
Above
19³⁄₄ in.
(50 cm)
Above
24 in.
(61 cm)
Above
Rear Panel
INSTALLATION DIMENSION DIAGRAM
16

(Rear piping hole) (Rear piping hole)
Left Right
Mark center of indoor
unit on rear panel
Space to
the wall
(150mm)
above
Space to
the wall
above
Wall Wall
5.91 in. (150mm)
5.91 in.
Indoor Outdoor
Wall pipe Chalk
(field supplied)
Wrenched Bent
Flooded
INSTALLING THE INDOOR UNIT
Installing the Rear Panel
1. First find the center of the indoor unit in relation to the
rear panel before mounting to the wall. If rear panel is
not attached to the indoor unit, place the rear panel on
the indoor unit as it will later be attached. Find the center
(right to left) of the indoor unit and mark that position on
rear panel.
2. Place the rear panel in the desired location on the wall.
Always install the rear panel horizontally and level right
to left to facilitate condensate water drainage.
3. Attached rear panel to the wall with heavy-duty screws.
4. Rear panel should be solidly attached to the wall,
enough to withstand the weight of 132 lbs (60 kg).
Weight should be evenly distributed among the screws.
Installing the Piping Hole
1. Drill the piping hole at a slight downward angle to the
outside.
2. Insert the piping-hole sleeve into the prepared hole to
prevent damage to piping and wiring. (field supplied).
Installing the Condensate Water Drain
1. For wall drainage, the condensate pipe should be
installed at a slight downward angle.
2. Do not pull or bend the condensate pipe. No trap
requirement.
3. Wrapping the condensate hose in insulation is
recommended.
Connecting Indoor and Outdoor
Electrical Wiring
1. All wiring should follow the enclosed wiring diagrams.
2. Tilt front panel up.
3. Remove cover plate screws and remove cover plate.
4. Put the power connection cable through the hole in the
back of the indoor unit and pull it out as far as it will go.
5. Put the sheathed power connection cable into the wire
groove; reattach cover plate with screws. Tighten the
connection wire.
6. Replace front panel cover.
7. Signal connection wire should be passed through the
indoor unit connection using wire clip under the body
case. Tighten the connection wire.
NOTE: If electric connection cable is not long enough,
contact qualified service professional for cable of correct
length.
• Incorrect connection of electrical connection cable can
cause malfunction in unit.
• Securely tighten the terminal screw to keep it from coming
loose.
• After tightening the terminal screw, pull slightly on wire to
assure tight connection.
• Make sure ground wire is properly attached to prevent
electric shock.
• The cover plate must be firmly closed and connection wire
tightened to prevent dust, debris and condensation from
forming inside the unit, which could cause fire or electric
shock.
• Circuit breaker must be of correct capacity for safe
operation.
17

Fig. 4
Fixing hook
Rear Panel
Right Left rear
Left
Right rear
Fig. 3
Fig. 2
Tailing 2
Tailing1
Gas side piping
External connection
electric wire
Liquid side
piping
Liquid side
piping
insulation
Water drainage pipe
Finally wrap it
with tape
Gas side piping
insulation
??
Rear
Panel
Install the Indoor Unit
Piping may lead out from right, right rear, left or left rear.
1. When installing piping and wiring from left or right side,
cut off the tailings from the chassis. (See Fig. 2.)
• Cut off tailing 1 when installing wiring only.
• Cut off both 1 and 2 when installing wiring and piping.
2. Remove piping from the body case, wrap the piping
electric wire and water pipe with tape, and put them
through the piping hole. (See Fig. 3.)
3. Align the mounting slots of the indoor unit on the upper
tabs of the rear panel and check that the connection is
firm. (See Fig. 4.)
Install the Refrigerant Pipes
1. Align the center of the piping flare with appropriate valve.
2. Tighten the flare nut by hand, then tighten securely with
screwdriver or torque wrench according to the following
guidelines:
Tightening torque table
NOTE:
Connect refrigerant lines to indoor unit first, then to
outdoor unit.
Be careful not to bend or kink refrigerant lines.
Over tightening refrigerant line flare nuts may cause
damage.
INSTALLING THE INDOOR UNIT
18
Wrench Torque wrench
Indoor unit piping Taper nut Piping
Tube diameter Torque ft-lb (N-m)
¹⁄₄" (6 mm) 11-15 (15-20)
³⁄₈" (9.5 mm) 23-26 (31-35)
¹⁄₂" (12 mm) 37-41 (50-55)
⁵⁄₈" (16 mm) 44-48 (60-65)
³⁄₄" (19 mm) 52-55 (70-75)

Liquid pipe
Gas pipe
Valve
cap
Vacuum
gauge
Vacuum pump
Fig. 5
Chassis
Outdoor drain
fittin
g
Electrical Wiring
1. Disassemble handle on front or right-hand side plate of
outdoor unit.
2. Remove wire clamp. Connect power connection cable to
line bank. Connections should be same as for indoor
unit.
3. Use the wire clamp to connect the power connection
cable on heating and cooling units, then the signal
control wire. Then connect the corresponding
connectors.
4. Verify that all connections are secure.
5. Reinstall the handle.
NOTE:
• Incorrect wiring can cause malfunction.
• Be sure there is adequate spacing between the wires.
INSTALLING THE OUTDOOR UNIT
Leakage Test
1. Connect the charging hose of the manifold valve to
charge the end of the low-pressure valve.
NOTE: Both high- and low-pressure valves must be
tightly closed.
2. Add dry nitrogen to a pressure of 200 lbs and leak test
flare fittings with soap bubbles. If no leak is detected,
release nitrogen and evacuate system to below
500 microns.
3. Connect the joint of the charging hose to the vacuum
pump.
4. Open the handle of the Lo manifold valve.
5. Open the vacuum pump to evacuate the hose. When
the charging is beginning, loosen the joint nut on the low-
pressure valve to check airflow. If readings are accurate
(0 on the multi-meter), retighten the nut.
6. Continue evacuating for at least 15 minutes. Be sure the
reading on the vacuum gage is 500 microns or less.
7. Remove the charging hose from the low-pressure end of
the low-pressure valve.
8. Tighten the bonnet of the low-pressure valve.
(See Fig. 5.)
Check for Leaks
Use soapy water or leak detector to verify joints,
connections and couplings are not leaking.
Outdoor Condensation Drainage
When the unit is heating, the condensing water and
defrosting water can be safely drained off through the drain
hose.
INSTALLATION:
Install the outdoor drain fitting in the hole on the base plate;
then connect the drain hose, directing it so that the water
drains out safely.
19
Fig. 6
Indoor unit checkpoint
Indoor unit checkpoint

USE THIS CHECKLIST TO VERIFY PROPER INSTALLATION:
ITEM TO BE CHECKED POSSIBLE MALFUNCTION
Unit is firmly installed. Unit may shake or emit noise.
Leak test has been performed. Unit will not heat or cool efficiently.
Sufficient insulation has been installed. May cause condensation or dripping.
Water is draining properly. May cause condensation or dripping.
Voltage as prescribed by information on the nameplate. Could cause electrical malfunction.
Electrical wiring and piping are installed properly and
securely.
Could cause electrical malfunction and
damage the unit.
The unit is properly grounded. Could cause electrical leakage.
Electrical cables are as specified. Could cause electrical malfunction.
Air Inlet and outlet are not covered. May cause insufficient cooling or heating.
Record the length of the connection pipes and refrigerant
capacity.
Refrigerant capacity is not accurate.
Test operation method:
1. Verify service valves are open.
2. Switch on power. Press ON/OFF button on wireless
remote to start operation.
AFTER INSTALLATION AND TESTING
Pre-Start-Up Procedure
3. Press the MODE button on the wireless remote to check
that COOL, HEAT or FAN modes are operating correctly.
20
CIRCUIT DIAGRAMS
Indoor Unit
L1
L1
L1
For 230V models: For 115V models:
L1
L1