DURASTAR DRPTAC07Y41G1A Service manual

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OWNER'S AND INSTALLATION MANUAL
PACKAGED TERMINAL
AIR CONDITIONER/HEAT PUMP
DRPTAC07Y41G1A, DRPTAC09Y41G1A, DRPTAC12Y41G1A,
DRPTAC15Y41G1A, DRPTHP07Y41G1A, DRPTHP09Y41G1A,
DRPTHP12Y41G1A, DRPTHP15Y41G1A
FPO
Model Number:
Serial Number:
Purchase Date:
Installing Contractor Company Name:
TIP
Capture relevant information about your Durastar PTAC 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
AIR CONDITIONER FEATURES .................................................................................. 9
CONTROL PANEL OPERATION ...............................................................................10
UNIT INSTALLATION ...................................................................................................... 12
DIP SWITCH CONFIGURATION .................................................................................14
DIP SWITCH CONFIGURATION BY CONTROL PANEL ................................ 16
WALL THERMOSTAT TERMINAL............................................................................. 17
CARE AND CLEANING ..................................................................................................20
TROUBLESHOOTING.....................................................................................................22
WARRANTY .........................................................................................................................24

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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.
• 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.
• 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.
• 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.
Power Supply Cord
The power supply cord contains a current device that senses damage to the power cord. To test
your power supply cord do the following:
1. Plug in the Air Conditioner.
2. The power supply cord will have TWO buttons on the plug head.
Press the TEST button. You will notice a click as the RESET
button pops out.
3. Press the RESET button. Again, you will notice a click as the
button engages.
4. The power supply cord is now supplying electricity to the unit.
• Do not use this device to turn the unit on or off.
• Always make sure the RESET button is pushed in for correct operation.
• The power supply cord must be replaced if it fails reset when either the TEST button is pushed
or it cannot be reset. A new one can be obtained from Durastar.
• If the power supply cord is damaged, it cannot be repaired. It MUST be replaced by one
obtained from Durastar.
Plug Type (NEMA)
6-20P
• All power supply cords for this product series come with a NEMA
6-20P plug.
• Be sure the electrical service is adequate for the model you have
chosen. This information can be found on the serial plate, which is
located on the side of the cabinet and behind the grille.

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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
Indoor Air
Temperature
62°F - 90°F
(17°C - 32°C)
32°F - 80°F
(0°C - 27°C)
Outdoor Air
Temperature
64°F - 109°F
(18°C - 43°C)
23°F - 76°F
(-5°C - 24°C)
To further optimize the performance of your unit, do the following:
• Keep doors and windows closed.
• Do not block air inlets or outlets.
• Regularly inspect and clean air filters.
OPERATING TEMPERATURES

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INCLUDED INSTALLATION ACCESSORIES
The air conditioning system comes with the following accessories.
INSTALLATION ACCESSORIES
The following installation accessories can be purchased separately.
• Wall Sleeve Assembly
• Rear Grille
• Drain Kit
Accessory Quantity Image
Manual 1
Wall
Thermostat
Pad
1-2
ACCESSORIES
TOOLS NEEDED
The following tools are required for installation.
• Phillips screwdriver
• Level
• Wire cutters (optional)
THIS UNIT IS CONTROLLED BY THERMOSTAT

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AIR CONDITIONER FEATURES
Compressor Restart Delay
When the compressor restarts, the unit goes into a three minute delay to equalize the refrigerant
pressure. This feature extends the overall life of the compressor by preventing the short-cycling of
the air conditioner.
Memory
The unit is programmed with a memory function. If power is lost, all of the control settings (mode,
fan speed, on/off, and configuration) are retained. When power is restored, the unit will start back
up in the mode (and configuration) it was in when power was lost.
Automatic Evaporator Freeze Protection
If the evaporator temperature gets too low, the compressor will automatically turn off and the
indoor fan will turn on to keep the evaporator from freezing.
Automatic Quick Warm-up (for heat pump models only)
If the room temperature falls to 8°F/4.5°C below the set temperature, the reverse cycle heat is
shut off and the electric heat is turned on for one cycle, until heating is satisfied.
LED Indicators and Buttons
The unit has an easy-to-use touch pad, with LED indicators, that makes operation simple and unit
status clear.
Unit Configuration
The unit can be configured in several different ways. Optional settings include: °F or °C display,
setpoint temperature range, continuous (CON) or cycling (CYC) fan, low temperature protection,
wall thermostat control, and front desk control. See the Dip Switch Configuration and Wall
Thermostat Terminal sections for more details.
TIP
This unit has many features the servicer should be familiar with in order to properly
service the unit.

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CONTROL PANEL OPERATION
The control panel keypad will look like the following.
ON/OFF
Press the ON/OFF button to power the unit on or off.
MODE
Push this button to cycle through the modes from COOL-HEAT-FAN. The indicator light beside the
option will illuminate, identifying the mode selected.
• COOL: In COOL mode, any temperature in the setpoint range can be chosen (See Dip Switch
Configuration for setpoint temperature ranges). Cooling starts when the room temperature is
above the setpoint, and stops when the room temperature is 4°F (2°C) below the setpoint.
• HEAT: In HEAT mode, the maximum temperature can be set to is 84°F (29°C). For heat pump
models, the unit can alternate between the reverse cycle heat pump and the electric heater
according to the difference between the set temperature and the room temperature.
NOTE
The heat pump and electric heater cannot be run at the same time. In the following cases,
it is normal that the heat pump does not operate:
• When the outdoor temperature is lower than 40°F (4°C) or the room temperature
falls to 8°F (4.5°C) below the set temperature.
• During the 3-minute compressor restart delay for short-cycling prevention. The
indoor fan motor starts before the compressor and stops after the compressor
cycles off.
• When the S1 DIP SWITCH is pushed to the UP (ON) position. This puts the unit in
electric heat only mode.
• When frost builds up on the evaporator coils, the unit will defrost automatically and
the compressor will cycle off.
• FAN: In FAN mode, the unit will display the room temperature. Only the fan will run and all
heating and cooling operations are stopped.

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UP/DOWN ( + / - )
Push the UP (+) or DOWN (-) button to increase or decrease the temperature setpoint by
increments of 1°F (1°C) in COOL or HEAT mode. The set temperature will appear in the display.
NOTE
With the unit powered on, press and hold the UP and DOWN buttons together for three (3)
seconds to alternate the temperature display between °F & °C.
NOTE
When an error occurs, unplug the unit for one (1) minute and plug it back in. If error repeats,
call for service.
SPEED (FAN SPEED)
Push this button to cycle through the fan speeds from HIGH-MED-LOW. The indicator light beside
the option will illuminate, identifying the speed selected.
CONSTANT FAN
In cooling mode, press the CONSTANT FAN button to turn this function on or off. When the
function is turned on, the fan will run continuously. When the function is turned off, the fan will cycle
with the compressor and stop when the set temperature is reached.
LED DISPLAY
Shows the set temperature in °F or °C. While in FAN mode, it shows the room temperature.
DISPLAY CODES
Display may show various codes in certain configurations or conditions.
• Control codes:
LC- The unit is controlled by a wall thermostat. Control panel operation is not available.
FC- The unit is in Front Desk Control. Control panel operation is not available.
• Error Codes:
AS- Room temperature sensor error
ES- Evaporator temperature sensor error
CS- Condenser temperature sensor error
OS- Outside temperature sensor error
HS- Exhaust temperature sensor error
LE- Wall thermostat error
• Other Codes:
LO- Room temperature is lower than 32°F (0°C)
HI- Room temperature is higher than 99°F (37°C)
FP- Low Temperature Protection
CONTROL PANEL OPERATION

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UNIT INSTALLATION
INSTALLATION INSTRUCTIONS
Install the new air conditioner according to these instructions to achieve the best performance. All
wall sleeves used to mount the new air conditioner must be in good structural condition and have
a rear grille that securely attaches to the sleeve or the flange of the sleeve. To avoid vibration and
noise, make sure the unit is installed securely and firmly. When installing the sleeve, make certain
there is nothing within 20" of the back that would interfere with heat radiation and exhaust air
flow. For existing sleeves, you should measure the wall sleeve dimensions.
STEP 1:
Carefully remove the shipping tape from the front panel.
COOLED
AIR
INTAKE
AIR
WALL
WALL
SLEEVE
HE AT
RADITATION
OVER 20”
STEP 2:
Remove the front panel.
Shipping
tape
Pull out at the bottom to release
it from the tabs.
Then lift up
1
2
Air Conditioner and Wall Sleeve Dimensions
42in (1067mm)
16in (408mm)
23 7
/
8 in (606mm)
143
/
4 in (376mm)

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STEP 4:
Lift the unit and slide it into the wall sleeve until it is firmly against the back of the wall sleeve.
Secure the unit with the four (4) screws and washers, supplied with the SLEEVE ASSEMBLY
(purchased separately), through the corner holes that bracket the unit.
STEP 3:
Remove the shipping screw from the vent door and rotate the vent control lever to either open or
closed.
Shipping
screw
Vent control lever
Vent closed
Vent open
STEP 5:
Reinstall the front panel.
Place tabs over top rail
Push inward at bottom
until panel snaps into place
1
2
NOTE
When the vent control lever is set at the closed position, only the air inside the room is
circulated and filtered. When set at the open position, fresh outdoor air will be drawn into
the room. This will reduce heating or cooling efficiency.
UNIT INSTALLATION

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DIP SWITCH CONFIGURATION
ACCESSING DIP SWITCHES
1. Power off and unplug the unit before making any changes to the Dip Switches.
2. Dip Switch controls are located behind the front panel, through an opening below the control
panel. To access, remove the front panel.
Dip Switches
DIP SWITCH CONFIGURATIONS
See the following diagram and table for the configuration and function of each Dip Switch position.
Carefully adjust the Dip Switch positions to the desired configuration settings. When you have
finished, replace the front panel. The settings will be activated when you turn the unit back on.
Pull out at the bottom to release
it from the tabs.
Then lift up
1
2
Wall thermostat type (S9)
UP (ON)
DOWN (OFF)
Load delay for 3 seconds (S11)
Heating type (S1)
Temperature display type (S2)
Control type (S3)
Setpoint limit 1 (S4)
Setpoint limit 2 (S5)
Fan CON/CYC for heating (S6)
Fan CON/CYC for cooling (S7)
Low temp. protection (S8)

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DIP SWITCH CONFIGURATION
No. UP (ON) DOWN (OFF) Remarks
S1 Electric Heat Only Electric Heat and Pump Heat For Heat Pump unit only
S2 Temperature Display in °F Temperature Display in °C
S3 Wall Thermostat Enabled Control Panel Enabled S9 must be down to use
Wall Thermostat
S4*S5
UP*UP: 61°F-86°F (16°C-30°C)
UP*DOWN: 65°F-78°F (17°C-26°C)
DOWN*UP: 63°F-80°F (17°C-27°C)
DOWN*DOWN: 68°F-75°F (20°C-24°C)
Two configurations
(S4*S5) combine to
select setpoint range
S6 Fan Continuous Run for Heating Fan Cycle for Heating
S7 Fan Continuous Run for Cooling Fan Cycle for Cooling
S8 Low Temp Protection Enabled Low Temp Protection Disabled Optional
S9 Use Control Panel Only Use Wall Thermostat Only S3 must be up to use
Wall Thermostat
S11 Load delay for 3 seconds Normal Optional
Electric Heat Only:
Enable this setting when the ambient temperature is too low for the heat pump to operate
effectively and provide sufficient heating. It will cause the unit to exclusively utilize the electric
heater and deactivate the heat pump. This is for heat pump models only.
Wall Thermostat Enable:
A wall thermostat can be connected to the unit. To enable a connected wall thermostat, the S3
dip switch must be moved to the UP (ON) position and the S9 dip switch moved to the DOWN
(OFF) position.
Setpoint Temperature Range:
Provides a restricted range of temperature setpoints to conserve energy.
Low Temperature Protection:
If the unit senses a room temperature below 32°F (0°C), the fan motor and electric heater will turn
on and warm the room to 40°F (4.4°C).
Fan CON/CYC for Heating and Cooling:
Sets the fan to operate continuously (CON) or cycle (CYC) with the compressor while the unit is in
heating and cooling modes.
• CON (Continuous): Allows fan to run continuously, circulating air even when the temperature
setting has been satisfied. This helps maintain the room temperature closer to the set
temperature.
• CYC (Cycle): This setting allows the fan to cycle on and off with the compressor or electric
heater. The fan stops a short time after the temperature setting is satisfied.
NOTE
In HEAT mode, the set temperature does not go higher than 84°F (29°C).

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DIP SWITCH CONFIGURATION BY CONTROL PANEL
DIP SWITCH CONFIGURATION BY CONTROL PANEL
1. Turn off the unit.
2. Press and hold the UP (+) and DOWN (-) buttons
together for 3 seconds to activate the dip switch
configuration by the control panel settings mode.
• The display window will show the settings with 2
digits: Left for dip switches, right for functions.
• Press the UP (+) button to set the dip switches
(left digit) and the DOWN (-) button to set the
functions (right digit).
3. The display window will show "00" when you enter
the settings mode. You must set "01" to access the
No. DS
(left)
Functions (right) Remarks
/ 0 1-By Control Panel 0-By Dip Switches
S1 1 1-Electric Heat Only 0-Electric Heat and Pump Heat Heat Pump unit only
S2 2 1-Temperature Display in °F 0-Temperature Display in °C
S3*S9 3 1-Wall Thermostat Enabled 0-Control Panel Enabled
S4*S5
4 4-62°F-86°F (17°C-30°C); 3-61°F-86°F (16°C-30°C)
2-65°F-78°F (18°C-26°C); 1-63°F-80°F (17°C-27°C);
0-68°F-75°F (20°C-24°C)
S6 6 1-Fan Continuous Run for Heating 0-Fan Cycle for Heating Not available when
wall thermostat
enabled
S7 7 1-Fan Continuous Run for Cooling 0-Fan Cycle for Cooling
S8 8 1-Low Temp Protection Enablee 0-Low Temp Protection Disabled Optional
SW7 A 1-Front Desk Control Disabled 0-Front Desk Control Enabled Optional
Sw11 B 1-Load Delay for 3 Seconds 0-Normal Optional
LED display window
Dip Switches (left)
Functions (right)
NOTE
• Pressing the UP (+) and DOWN (-) buttons together for 3 seconds or performing no
operation within 30 seconds will exit the dip switch configuration by control panel and
the unit will save the last settings.
• To activate Front Desk Control, the "A0" setting must be selected and the "SW7" dip
switch must be in the DOWN (OFF) position.
other settings. Make this setting "01" by pressing the DOWN (-) button. Then, press the UP (+)
button to access the next setting.
4. After setting "01" you can scroll through and use the table below to make your setting
selections. When you have finished, press and hold the UP (+) and DOWN (-) buttons together
for three (3) seconds to exit the settings mode and save your selections. The settings will be
activated when you turn the unit back on.
NOTE
To adjust the dip switch configuration by control panel, the unit must be powered off.

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WALL THERMOSTAT TERMINAL
IMPORTANT: Only trained, qualified personnel should access the electrical panel on the
unit and install electrical accessories. Please contact your local electrical contractor, dealer, or
distributor for assistance.
WALL THERMOSTAT WIRING TERMINAL
To access the Wall Thermostat terminal, remove the two (2) screws as shown below and take the
cover panel down. Refer to the diagram and table below for terminal designation.
CAUTION: UNIT DAMAGE HAZARD! Failure to follow this caution may result in equipment
damage or improper operation. Improper wiring may damage unit electronics. Common busing is
not permitted. Damage or erratic operation may result.
Remove the two screws
Take the cover panel off
Wall Thermostat Wiring Terminal
TERMINAL DESIGNATION
FC (L) Front desk control terminal L
FC (N) Front desk control terminal N
LOW-FAN Low fan speed
HI-FAN High fan speed
4-WAY 4-way valve; Reverse cycle (Energized in
Heat) For heat pump models
HEAT 2 Electrical heater 2
HEAT 1 Electrical heater 1
COMP Compressor
24V (N) 24VAC terminal N (Neutral), Common
24V (L) 24VAC terminal L (Line)
Wall Thermostat Wiring Terminal
FC (L)
FC (N)
LOW-FAN
HI-FAN
4-WAY
HEAT 2
HEAT 1
COMP
24V (N)
24V (L)

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WALL THERMOSTAT TERMINAL
IMPORTANT: Only trained, qualified personnel should access electrical panel on unit and
install electrical accessories. Please contact your local electrical contractor, dealer, or distributor
for assistance.
THERMOSTAT INSTALLATION
Refer to your thermostat's installation instructions for details on installing a wall thermostat.
Thermostats must have:
• 24V AC power and common
• Single stage cooling (Compressor & 1 fan speed input)
• Single stage heating (W output)
For PTHP (heat pump) units, thermostats must also have:
• Dual stage heating (W output for electric heat and B type reversing valve output for heat
pump)
Wall Thermostat Wiring Terminal
FC (L)
FC (N)
LOW-FAN
HI-FAN
4-WAY
HEAT 2
HEAT 1
COMP
24V (N)
24V (L)
Generic 24V Thermostat
C - Common
Y - Compressor
W - Heat (Elec)
B/O - 4-Way Valve (HP)
GH - High Fan
GL - Low Fan
R - 24V
24V (Typically Red)
24V Neutral (Typically Black)
Compressor (Typically Yellow)
W Electric Heat (Typically White)
B Type Reversing Valve (Typically Brown or Blue)
High Fan (Typically Green)
Low Fan (Optional)
NOTE
• Only connect to the 4-Way terminal on heat pump units with the correct dual stage
heating output.
• For thermostats with only one fan speed output (on or auto), the fan speed is
determined by the terminal it is wired to. If Low fan is desired, wire the G output from
the thermostat to the LOW-FAN terminal. If High fan is desired, wire the G output to
the HI-FAN terminal.
• The setpoint temperature range of the thermostat must match the setpoint
temperature range of the unit.
• The type of thermostat must match the unit type: PTHP (heat pump) or PTAC (no
heat pump).
• Do not remove the control panel.

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WALL THERMOSTAT TERMINAL
FRONT DESK CONTROL
This feature allows a switch to be installed to remotely turn off the unit for energy savings. The
switch input must be 24VAC and wired to the FC(L) and FC(N) terminals. When the unit receives
the 24VAC signal it will run as normal. When the signal stops the unit will turn off. To activate this
feature, the Front Desk Control dip switch shown below must be in the DOWN (OFF) position.
Dip switch of FRONT
DESK CONTROL
THERMOSTAT WIRE ROUTING
(UNDER SLEEVE, BEHIND FRONT PANEL)
THERMOSTAT WIRE ROUTING
Thermostat wire is field supplied. Recommended wire gauge is 18 to 20 gauge solid thermostat
wire. Thermostat wire should always be routed around or under, NEVER through, the wall sleeve.
The wire should then be routed behind the front panel to the terminal connector.

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CARE AND CLEANING
FRONT PANEL AND CASE:
1. Turn off the unit and disconnect the power supply.
2. To clean, use water and a mild detergent. DO NOT use bleach or abrasives. Some commercial
cleaners may damage the plastic parts. Allow to air dry thoroughly before turning on.
OUTDOOR COIL:
Coil on the outdoor side of the unit should be checked regularly. Unit will need to be removed to
inspect dirt build-up that will occur on the inside of the coil. If clogged with dirt and soot, the coil
should be professionally cleaned. Clean inside and outside of the outdoor coils regularly.
AIR FILTERS:
IMPORTANT: TURN OFF UNIT BEFORE CLEANING!
Pull up to remove
Push down to replace
CAUTION: UNIT DAMAGE HAZARD! Failure to follow this caution may result in equipment
damage or improper operation. DO NOT operate unit without filters in place. If a filter becomes
torn or damaged, it should be replaced immediately. Operating without filters in place or with
damaged filters will allow dirt and dust to reach indoor coil and reduce cooling, heating, airflow,
and efficiency of the unit. Airflow restriction may cause damage to the unit.
TIP
The most important thing you can do to maintain unit efficiency is to clean the filters
once every two (2) weeks or as required. Clogged filters reduce cooling, heating, and
airflow.
Keeping Filters clean will:
• Decrease cost of operation.
• Save energy.
• Prevent clogged indoor coil.
• Reduce risk of premature component failure.
To Clean Air Filters:
1. Turn unit off.
2. Remove filters from the front panel.
3. Vacuum off heavy dust and debris.
4. Run water through filter.
5. Allow to air dry thoroughly before replacing.
NOTE
• Never use a high-pressure spray to clean any part of the unit.
• Never use a hair/clothes dryer or other means to speed up drying.