DURASTAR DRAW09F1A User manual

DURASTAR.COM1
INSTALLATION MANUAL
WALL MOUNTED INDOOR UNIT
SPLIT-STYLE AIR CONDITIONER
DRAW09F1A, DRAW12F1A, DRAW18F1A, DRAW24F1A
FPO
Model Number:
Serial Number:
Purchase Date:
Installing Contractor Company Name:
TIP
Capture relevant information about your Durastar mini-split equipment before it is
installed and write it above for future reference.

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TABLE OF CONTENTS
TABLE OF CONTENTS............................................................................................................................. 2
INTRODUCTION .......................................................................................................................................... 3
WARNINGS .................................................................................................................................................... 3
IMPORTANT SAFETY PRECAUTIONS .............................................................................................4
OPERATING TEMPERATURES.............................................................................................................7
ACCESSORIES.............................................................................................................................................. 8
PARTS IDENTIFICATION ........................................................................................................................ 10
INSTALLATION OVERVIEW - INDOOR UNIT...............................................................................11
INDOOR UNIT INSTALLATION ........................................................................................................... 12
STEP 1: SELECT INSTALLATION LOCATION ............................................................................. 12
STEP 2: ATTACH MOUNTING PLATE TO WALL....................................................................... 13
STEP 3: DRILL WALL HOLE FOR CONNECTIVE PIPING..................................................... 13
STEP 4: PREPARE REFRIGERANT PIPING.................................................................................. 14
STEP 5: CONNECT THE DRAIN PIPE .............................................................................................. 15
STEP 6: CONNECT SIGNAL CABLE ................................................................................................ 16
STEP 7: PREPARE REFRIGERANT PIPING.................................................................................. 18
STEP 8: WRAPPING THE CABLES................................................................................................... 18
STEP 9: MOUNT INDOOR UNIT.......................................................................................................... 18
TROUBLESHOOTING.............................................................................................................................. 20

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WARNINGS
The warning symbol indicates cautionary information for the user. Extra care and
precautions should be taken to ensure the user's safety.
The pencil indicates any manufacturer notes relating to surrounding content. These may
include further clarifications or call-outs.
A light bulb symbol indicates suggested manufacturer tips for the user to get the most
out of the Durastar equipment and to accommodate the best user experience.
Symbols Used in This Manual
INTRODUCTION
To better serve you, please do the following before contacting customer service:
• If you received a damaged product, immediately contact the retailer or dealer that sold you the
product.
• Read and follow this owner's manual carefully to help you use and maintain your air conditioner.
• Read the troubleshooting section of this manual as it will help you diagnose and solve common
issues.
• Visit us on the web at www.durastar.com to download product guides and up-to-date
information.
• If you need warranty service, our friendly customer service representatives are available via
email at [email protected] or by telephone at 1-888-320-0706.

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IMPORTANT SAFETY PRECAUTIONS
Improper handling can cause serious damage or injury. Please read the following safety
information in its entirety.
Operation, Cleaning, and Maintenance Safety Precautions
• Children and people with reduced physical, sensory, or mental capabilities, or lack of
experience and knowledge, should only use this air conditioner if they are given supervision or
instructions concerning use of the air conditioner in a safe way and understand the hazards
involved.
• Children should not play with the air conditioner.
• Never stick fingers or any other body parts into the air conditioner openings. The internal fan
may be rotating at high speeds, and may result in injury.
• After removing the filter, do not touch the fins in order to avoid injury.
• Maintenance must be performed by qualified professionals. Otherwise, you may experience
personal injury or damage to the air conditioner and surrounding property.
• Do not repair the air conditioner by yourself. It may cause electric shock or damage. Please
contact a qualified service representative when you need to repair the air conditioner.
• Do not block the air outlet or air inlet. This could cause a malfunction.
• Do not spill water on the remote control as this can permanently damage the remote.
• If the below problems occur, please turn off the air conditioner and disconnect power at the
circuit breaker immediately. Then contact your dealer or a qualified professional for service.
• The power cord is overheating or damaged.
• There is an abnormal sound during operation.
• The circuit breaker trips frequently.
• The air conditioner gives off a burning smell.
• The indoor unit is leaking.
• If the air conditioner operates under abnormal conditions, it may cause malfunctions, electric
shock, or fire hazard.
• When turning the unit on or off via the emergency operation switch, press the switch with an
insulated object other than metal.
• Do not step on the top panel of the unit, or put heavy objects on the top panel. This could
cause damage or personal injury.
• Cleaning and user maintenance should not be performed by children without supervision.
• Do not spray water on the indoor unit. This could cause electric shock or a unit malfunction.
• Do not use flammable materials such as hair spray, lacquer, or paint near the air conditioner as
they may catch fire.
• Do not operate the air conditioner in places near combustible gases. Emitted gases may
collect around the air conditioner and cause an explosion.
• Do not use fire or a hair dryer to dry the filter. This could cause a deformation or fire hazard.
• Do not wash the air conditioner with water as this could cause an electric shock.
• Disconnect the power supply by turning it off at the circuit breaker when cleaning the air
conditioner. Otherwise, you could risk electric shock.

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Electrical Safety
• Only use the specified power cord. If the power cord is damaged, it must be replaced by the
manufacturer, its service agent, or similarly qualified persons in order to avoid a hazard.
• Keep the power plug clean. Remove any dust or grime that accumulates on or around the plug.
Dirty plugs can cause fire or electric shock.
• Do not pull the power cord to unplug unit. Hold the plug firmly and pull it from the outlet. Pulling
directly on the cord can damage it, which can lead to fire or electric shock.
• Do not connect the air conditioner to a multi-purpose socket. Doing so could cause a fire
hazard.
• Do not modify the length of the power supply cord or use an extension cord to power the unit.
• If the supply cord is damaged, it must be replaced by the manufacturer, a service agent, or a
similarly qualified person in order to avoid a safety hazard.
• Do not share the electrical outlet with other appliances. Improper or insufficient power supply
can cause fire or electrical shock.
• The product must be properly grounded at the time of installation, or electrical shock may
occur.
• For all electrical work, follow all local and national wiring standards and regulations. Connect
cables tightly, and clamp them securely to prevent external forces from damaging the
terminal. Improper electrical connections can overheat and cause fire, and may also cause
shock. All electrical connections must be made according to the Electrical Connection
Diagram located on the panels of the indoor and outdoor units.
• All wiring must be properly arranged to ensure that the control board cover can close properly.
If the control board cover is not closed properly, it can lead to corrosion and cause the
connection points on the terminal to heat up, catch fire, or cause electrical shock.
• The air conditioner’s circuit board (PCB) is designed with a fuse to provide overcurrent
protection. The specifications of the fuse are printed on the circuit board.

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Installation Safety
• Installation must be performed by an authorized dealer or specialist. Improper installation
can cause water leakage, electrical shock, or fire. (In North America, installation must be
performed in accordance with NEC and CEC requirements by authorized personnel only.)
• Installation must be performed according to the installation instructions. Improper installation
can cause water leakage, electrical shock, or fire.
• This air conditioner shall be installed in accordance with national and local wiring regulations.
• Contact an authorized service technician for repair or maintenance of this unit.
• Only use the included accessories, parts, and specified parts for installation. Using non-
standard parts can cause water leakage, electrical shock, fire, and can cause the unit to fail.
• Install the unit in a firm location that can support the unit’s weight. If the chosen location
cannot support the unit’s weight, or the installation is not done properly, the unit may fall and
cause serious injury and damage.
• Install drainage piping according to the instructions in the installation manual. Improper
drainage may cause water damage to your home and property.
• For units that have an auxiliary electric heater, do not install the unit within 3 feet (1 meter) of
any combustible materials.
• Do not install the unit in a location that may be exposed to combustible gas leaks. If
combustible gas accumulates around the unit, it may cause a fire.
• Do not turn on the power until all work has been completed.
• When moving or relocating the air conditioner, consult experienced service technicians for
disconnection and re-installation of the unit.
Additional Precautions
• Turn off the air conditioner and disconnect the power if you are not going to use it for a long
time.
• Turn off and unplug the unit during storms.
• Make sure that water condensation can drain unhindered from the unit.
• Do not operate the air conditioner with wet hands. This may cause electric shock.
• Do not use this device for any other purpose than its intended use.
• Do not climb onto or place objects on top of the outdoor unit.
• Do not allow the air conditioner to operate for long periods of time with doors or windows
open, or if the humidity is very high.

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Your air conditioner is designed to operate in the following indoor and outdoor temperatures.
When your air conditioner is used outside of the following temperature ranges, certain safety
features may activate and turn off the unit to protect it from damage.
TEMPERATURE RANGES
COOL mode HEAT mode DRY mode
Indoor Air
Temperature
62°F - 90°F
(17°C - 32°C)
32°F - 86°F
(0°C - 30°C)
50°F - 90°F
(10°C - 32°C)
Outdoor Air
Temperature
-13°F - 122°F
(-25°C - 50°C)
-13°F - 86°F
(-25°C - 30°C)
32°F - 122°F
(0°C - 50°C)
To further optimize the performance of your unit, do the following:
• Keep doors and windows closed.
• Limit energy usage by using TIMER ON and TIMER OFF features.
• Do not block air inlets or outlets.
• Regularly inspect and clean air filters.
OPERATING TEMPERATURES
NOTE
Keep the room's relative humidity below 80%. If the air conditioner operates in excess
of this, the surface of the air conditioner may attract condensation. To help prevent
condensation from forming and dripping, set the vertical airflow louver to its maximum
angle (vertically to the floor) and set the fan to HIGH.
NOTE
Your Durastar air conditioner's outdoor unit is equipped with a base pan heater, allowing
it to continue to operate at freezing temperatures as low as -13°F (-25°C). When outdoor
air temperatures are at or below 32°F (0°C), we strongly recommend keeping the unit
plugged in at all times to ensure smooth ongoing performance.

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INCLUDED INSTALLATION ACCESSORIES
The air conditioning system comes with the following accessories.
FIELD SUPPLIED INSTALLATION ACCESSORIES
The following installation accessories are required and must be purchased separately.
• Refrigerant piping (line set)
• Indoor and outdoor connection wire
• Outdoor power supply cord
• Drain pipe
• Pipe and cable wrapping tape
• Wall hole sleeve and cover
• Putty
• Wiring u-lugs
Accessory Quantity Image Accessory Quantity Image
Manual 1-2 Remote Control 1
Mounting Plate 1 Battery 2
Wall Anchor 5-8
(depending
on model)
Remote Control
Holder
1
Mounting Plate
Screw
5-8
(depending
on model)
Remote
Control Holder
Mounting Screw
2
Copper Nut 2 Installation
Template
1
Drain Joint 1 Carbon Filter 2
Drain Joint Seal 1
ACCESSORIES

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TOOLS NEEDED
The following tools are required for installation.
• Phillips screwdriver
• Drill with 2 1/2" or 3 1/2" (indoor unit model depending) core bit
• Vacuum pump
• HVAC manifold gauge set
• Refrigerant leak detector
• Copper pipe cutter
• Flaring tool
• Burr reamer
• Crescent or spanner wrench
• Hexagonal wrench set
• Torque wrench
• Multimeter
• Electroprobe
• Level
• Hammer
• Wire strippers
• Wire crimper

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PARTS IDENTIFICATION
Wall Mounting Plate
Indoor Unit Power Cable
Refrigerant Piping
Signal Cable
Remote Controller
Drain Pipe
Air Flow Louver
Remote Controller Holder
Air Freshness (Carbon)
Filter
Front Panel
Outdoor Unit Power Cable
1
2
3
4
5
6
7
8
9
10
11
1
23
4
6
7
8
9
10
11
5
NOTE
Illustrations in this manual are for explanatory purposes. The actual shape of your mini-
split equipment may vary slightly.
NOTE
The installation must be performed in accordance with the required local and national
standards. The installation may be slightly different in different areas.

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INSTALLATION OVERVIEW - INDOOR UNIT
Select Installation Location
Attach Mounting Plate
Determine Wall Hole Position
1 2
3
Drill Wall Hole
12cm
(4.75in)
2.3m (90.55in)
12cm
(4.75in)
15cm (5.9in)
Mount Indoor Unit
STEP 8
Wrap Piping and Cable
Connect Piping
Prepare Drain Pipe
Connect Wiring
456
78
9

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INDOOR UNIT INSTALLATION
STEP 1: SELECT INSTALLATION LOCATION
Before installing the indoor unit, you must choose an appropriate location. The following
standards must be met for an appropriate location for the unit:
• Good air circulation
• Convenient drainage
• Noise from the unit will not disturb other people
• Firm and solid - the location will not vibrate
• Strong enough to support the weight of the unit
• A location at least three feet (one meter) from all other electrical devices (e.g., TV, radio,
computer)
DO NOT install unit in the following locations:
• Near any source of heat, steam, or combustible gas
• Near flammable items such as curtains or clothing
• Near any obstacle that might block air circulation
• Near a doorway
• In a location subject to direct sunlight
Refer to the following diagram to ensure proper distance from walls and ceiling:
4 3/4” (12cm)
or more
7’6” (2.3m) or more
4 3/4” (12cm)
or more
6” (15cm) or more
NOTE
If there is no pre-existing refrigerant piping, when choosing a location, leave ample room
for a wall hole (see Step 3: Drill Wall Hole for Connective Piping) for the signal cable and
refrigerant piping that connect the indoor and outdoor units. The default position for
all piping is the right side of the indoor unit (while facing the unit). However, the unit can
accommodate piping to either the left or right.

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STEP 3: DRILL WALL HOLE FOR CONNECTIVE PIPING
1. Determine the location of the wall hole based on your unit's mounting plate dimensions. Use
the installation template provided with the indoor unit to correctly position the wall hole, or
refer to the illustration below.
STEP 2: ATTACH MOUNTING PLATE TO WALL
1. Remove the screw that attaches the mounting plate to the back of the indoor unit. The
mounting plate is the bracket on which you will mount the indoor unit.
Screw
Correct orientation of mounting plate
9” (228mm)
9” (229mm)
15 13/16” (401mm)
5” (127mm)
1 5/8” (42mm)
11 11/16” (297mm)
Left rear wall
hole 2 1/2” (64mm) Right rear wall
hole 2 1/2” (64mm)
Indoor unit outline
31 9/16” (802mm)
2 1/4” (58mm)
1 7/8” (47mm)
Model 9K and 12K
8 11/16” (221mm)
22 3/4” (578mm)
11 3/4” (298mm)
13 3/16” (336mm)
Left rear wall
hole 2 1/2” (64mm)
Right rear wall
hole 2 1/2” (64mm)
Model 18K and 24K
42 1/2” (1080mm)
2 1/8” (54mm)
1 15/16” (49mm)
3 1/8” (79mm) 2 1/8” (54mm)
1 15/16” (49mm)
(149mm)
5 7/8”
5 7/8” (149mm)
5 7/16” (138mm)
Indoor unit outline
2. Secure the mounting plate to the wall with the anchors and screws provided. Make sure that
mounting plate is flat against the wall, and is level.

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STEP 4: PREPARE REFRIGERANT PIPING
1. Based on the position of the wall hole relative to the mounting plate, choose the side from
which the piping will exit the unit (left or right).
2. If the wall hole is behind the unit, do not remove the knock-out panel. If the wall hole is to the
side of the indoor unit, remove the plastic knock-out panel from that side of the unit. This will
create a slot through which your piping can exit the unit. Use needle nose pliers or cutters if
the plastic panel is too difficult to remove by hand. Grooves have been made in the knock-out
panel in order to cut it to size conveniently. The size of the piece removed is determined by the
diameter of the piping.
2. Using a 2 1/2" (65mm) core drill for units with a gas side connective pipe less than 5/8" (16mm),
or 3 1/2" (90mm) for units with a gas side pipe greater than or equal to 5/8" (16mm), drill a hole
in the wall. Make sure that the hole is drilled at a slight downward angle, so that the outdoor
end of the hole is lower than the indoor end by about 3/16 - 1/4" (5mm to 7mm). This will ensure
proper water drainage.
Wall
Indoor Outdoor
3/16-1/4”
(5-7 mm)
Knock-out Panel
3. Place the protective wall hole sleeve into the hole. This protects pipes and cables from sharp
edges and will help seal the opening when you finish the installation process. After the sleeve
is inserted through the wall, connect the wall hole cover to the wall sleeve on the outside end.
Make sure the cover is flush with the outside wall.
3. If pre-existing connective piping is already embedded in the wall, proceed directly to Step 5:
Connect the Drain Pipe. If there is no pre-existing piping, connect the indoor unit’s refrigerant
piping to the connective piping that will join the indoor and outdoor units. Refer to the
Refrigerant Piping Connections section of your outdoor unit's installation manual for detailed
instructions.

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4. Position the piping to align with the wall hole. The refrigerant piping can exit the indoor unit
from four different angles: left-hand side, right-hand side, left rear, or right rear.
STEP 5: CONNECT THE DRAIN PIPE
By default, the unit's drain pipe is attached to the left-hand side of unit (when you’re facing the
back of the unit). However, it can also be attached to the right-hand side. To ensure proper
drainage, attach the drain pipe on the same side that your refrigerant piping exits the unit. Attach
any drain pipe extension (purchased separately) to the end of the drain pipe. Any drain pipe
extension must have an inner diameter of 5/8" (16mm) and tightly fit the unit's existing drain pipe.
• Wrap the connection point firmly with Teflon tape to ensure a good seal and to prevent leaks.
• For the portion of the drain pipe that will remain indoors, wrap it with foam pipe insulation to
prevent condensation.
• Remove the air filter and pour a small amount of water into the drain pan to make sure that
water flows from the unit smoothly.
• Make sure to arrange the drain pipe according to the following illustration.
CORRECT
Make sure there are no kinks
or dents in drain pipe to
ensure proper drainage.
NOT CORRECT
Kinks in the drain pipe
will create water traps.
NOT CORRECT
Do not place the end of the
drain pipe in water or in
containers that collect water.
This will prevent proper
drainage.
NOT CORRECT
Kinks in the drain pipe
will create water traps.
WARNING
Be extremely careful not to dent or damage the piping while bending them away from
the unit. Any dents in the piping will affect the unit’s performance.

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STEP 6: CONNECT SIGNAL CABLE
BEFORE PERFORMING ANY ELECTRICAL WORK, READ THESE REGULATIONS
1. All wiring must comply with local and national electrical codes and regulations, and must be
installed by a licensed electrician.
2. All electrical connections must be made according to the Electrical Connection Diagram
located on the panels of the indoor and outdoor units.
3. If there is a serious safety issue with the power supply, stop work immediately and contact
a licensed electrician. Do not continue with the installation until the safety issue is properly
resolved.
4. Power voltage should be within 90-110% of rated voltage. Insufficient power supply can cause
malfunction, electrical shock, or fire.
5. If connecting power to fixed wiring, install a surge protector and main power switch with a
capacity of 1.5 times the maximum current of the unit.
6. If connecting power to fixed wiring, a switch or circuit breaker that disconnects all poles and
has a contact separation of at least 1/8" (3mm) must be incorporated in the fixed wiring. A
qualified technician must use an approved circuit breaker or switch.
7. Only connect the unit to an individual branch circuit outlet. Do not connect another appliance
to that outlet.
8. Make sure to properly ground the air conditioner.
9. Every wire must be firmly connected. Loose wiring can cause the terminal to overheat,
resulting in product malfunction and possible fire.
10. Do not let wires touch or rest against refrigerant tubing, the compressor, or any moving parts
within the unit.
11. If the unit has an auxiliary electric heater, it must be installed at least 40" away from any
combustible materials.
12. To avoid getting an electric shock, never touch the electrical components soon after the
power supply has been turned off. After turning off the power, always wait 10 minutes or more
before you touch the electrical components.
WARNING
PLUG THE UNUSED DRAIN HOLE. To prevent unwanted leaks you must plug the
unused drain hole with the rubber plug provided.
WARNING
Before performing any electrical or wiring work, turn off the main power to the
system.

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The signal cable enables communication between the indoor and outdoor units. You must first
choose the right cable size before preparing it for connection.
USE THE RIGHT CABLE
• Indoor Power Cable (if applicable): H05VV-F or H05V2V2-F
• Outdoor Power Cable: H07RN-F
• Signal Cable: H07RN-F
CABLE SIZING
Use a minimum of 16 AWG for power and signal cables connected to and between the indoor and
outdoor units.
Choose the correct size of cable
The size of the power supply cable, signal cable, fuse, and switch needed is determined by the
maximum current of the unit. The maximum current is indicated on the nameplate located on the
side panel of the unit. Refer to this nameplate to choose the right cable, fuse, or switch.
Wiring the Indoor Unit
1. Open front panel of the indoor unit.
2. Using a screwdriver, open the wire box cover on the right side of the unit. This will reveal the
terminal block.
Terminal block
Cover
Screw
Cable clamp
WARNING
All wiring must be performed strictly in accordance with the wiring diagram located
on the back of the indoor unit's front panel.
3. Unscrew the cable clamp below the terminal block and place it to the side.
4. Facing the back of the unit, remove the plastic panel on the bottom left-hand side.
5. Feed the signal wire through this slot, from the back of the unit to the front.
6. Facing the front of the unit, connect the wire according to the indoor unit’s wiring diagram,
connect the u-lug, and firmly screw each wire to its corresponding terminal.
7. After checking to make sure every connection is secure, use the cable clamp to fasten the
signal cable to the unit. Screw the cable clamp down tightly.
8. Replace the wire cover on the front of the unit and the plastic panel on the back.

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STEP 8: WRAPPING THE CABLES
Before passing the piping, drain pipe, and the signal cable through the wall hole, you must bundle
them together to save space, protect them, and insulate them.
1. Bundle the drain pipe, refrigerant pipes, and signal cable as shown below:
Indoor Unit
Space behind unit
Refrigerant piping
Drain pipe
Signal wire
Insulation tape
NOTE
The drain pipe MUST be at the bottom of the bundle. Putting the drain pipe at the top of
the bundle can cause the drain pan to overflow, which can lead to fire or water damage.
NOTE
DO NOT intertwine the signal cable with any of the other wires while bundling these items
together.
NOTE
When wrapping the bundle, keep the ends of the piping unwrapped. You need to access
them to test for leaks at the end of the installation process (refer to Electrical and Gas
Leak Checks section of this manual).
2. Using adhesive vinyl tape, attach the drain pipe to the underside of the refrigerant pipes.
3. Using insulation tape, wrap the signal wire, refrigerant pipes, and drain pipe tightly together.
Double-check that all items are bundled.
STEP 9: MOUNT INDOOR UNIT
If you installed new connective piping to the outdoor unit, do the following:
1. If you have already passed the refrigerant piping through the hole in the wall, proceed to #4.
2. Double-check that the ends of the refrigerant pipes are sealed to prevent dirt or foreign
materials from entering the pipes.
3. Slowly pass the wrapped bundle of refrigerant pipes, drain pipe, and signal wire through the
hole in the wall.
STEP 7: PREPARE REFRIGERANT PIPING
1. If pre-existing refrigerant piping is already embedded in the wall, skip to Step 9. Then, begin the
outdoor unit installation. Refer to the Refrigerant Piping Connections section of the outdoor
unit's installation manual for detailed instructions.
2. If there is no pre-existing piping, connect the indoor unit’s refrigerant piping to the connective
piping that will join the indoor and outdoor units. Refer to the Refrigerant Piping Connections
section of the outdoor unit's installation manual for detailed instructions.

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If refrigerant piping is already embedded in the wall, do the following:
1. Hook the top of the indoor unit on the upper hook of the mounting plate.
2. Use a bracket or wedge to prop up the unit, giving you enough room to connect the refrigerant
piping, signal cable, and drain pipe.
Wedge
NOTE
The indoor unit is adjustable. The hooks on the mounting plate are smaller than the holes
on the back of the unit. If you find that you don’t have ample room to connect embedded
pipes to the indoor unit, the unit can be adjusted left or right by about 1 1/4-2" (30-50mm),
depending on the model.
Adjust left or right
1 1/4 - 2”
(30-50mm)
1 1/4 - 2”
(30-50mm)
3. Connect drain pipe and refrigerant piping (refer to the Refrigerant Piping Connections section
of the outdoor unit installation manual for instructions).
4. Keep pipe connection point exposed to perform the leak test (refer to Electrical and Gas Leak
Checks section of the outdoor unit's installation manual).
5. After the leak test, wrap the connection point with insulation tape.
6. Remove the bracket or wedge that is propping up the unit, if applicable.
7. Using even pressure, push down on the bottom half of the unit. Keep pushing down until the
unit snaps onto the hooks along the bottom of the mounting plate.
NOTE
We recommend a second person is present to assist with supporting the indoor unit while
the first person makes all applicable connections.
4. Hook the top of the indoor unit on the upper hook of the mounting plate.
5. Check that the unit is hooked firmly on the mounting by applying slight pressure to the left-
and right-hand sides of the unit. The unit should not jiggle or shift.
6. Using even pressure, push down on the bottom half of the unit. Keep pushing down until the
unit snaps onto the hooks along the bottom of the mounting plate.
7. Again, check that the unit is firmly mounted by applying slight pressure to the left and the
right-hand sides of the unit.

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TROUBLESHOOTING
SAFETY PRECAUTIONS
If ANY of the following conditions occurs, turn off your unit immediately!
• The power cord is damaged or abnormally warm
• You smell a burning odor
• The unit emits loud or abnormal sounds
• A power fuse blows or the circuit breaker frequently trips
• Water or other objects fall into or out of the unit
DO NOT ATTEMPT TO FIX THESE YOURSELF! CONTACT AN AUTHORIZED SERVICE PROVIDER
IMMEDIATELY!
COMMON ISSUES
The following problems are not a malfunction and in most situations will not require repairs.
ISSUE POSSIBLE CAUSES
Unit does not turn on
when pressing ON/OFF
button
The Unit has a 3-minute protection feature that prevents the unit from
overloading. The unit cannot be restarted within three minutes of being
turned off.
The unit changes from
COOL/HEAT mode to
FAN mode
The unit may change its setting to prevent frost from forming on the
unit. Once the temperature increases, the unit will start operating in
the previously selected mode again.
The set temperature has been reached, at which point the unit
turns off the compressor. The unit will continue operating when the
temperature fluctuates again.
The indoor unit emits
white mist
In humid regions, a large temperature difference between the room’s
air and the conditioned air can cause white mist.
Both the indoor and
outdoor units emit
white mist
When the unit restarts in HEAT mode after defrosting, white mist may
be emitted due to moisture generated during the defrosting process.
The indoor unit makes
noises
A rushing air sound may occur when the louver resets its position.
A squeaking sound may occur after running the unit in HEAT mode due
to expansion and contraction of the unit’s plastic parts.