Toshiba RAC-WK0512CMRC User manual

Safety Precautions
Operating Instructions
Installation Instructions
Remote Control and App
Instructions
Troubleshooting Tips
Care and Cleaning
Warning notices: Before using this product,
please read this manual carefully and keep
it for future reference.
change without prior notice for product
improvement. Consult with your dealer or
the manufacturer for details.
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RAC-WK0812ESCWRC (8,000 BTU)
RAC-WK1012ESCWRC (10,000 BTU)
RAC-WK1212ESCWRC (12,000 BTU)
RAC-WK0512CMRC (5,000 BTU)

Page 2 User Manual
Read This Manual
Inside you’ll find many helpful hints on how to use and maintain your air conditioner properly. Just
a little preventive care on your part can save you a great deal of time and money over the life of
your air conditioner. You’ll find many answers to common problems in the troubleshooting tips -
you should be able to fix most of them quickly before calling service. These instructions may not
cover every possible condition of use, so common sense and attention to safety is required when
installing, operating and maintaining this product.
Owner’s Manual
Safety Precautions .................................................................................................................... 3
Operating Instructions ............................................................................................................ 8
Installation Instructions ....................................................................................................... 13
Care and Cleaning ................................................................................................................. 19
Troubleshooting Tips ............................................................................................................ 20
Remote Control and App Instructions ........................................................................... 22
• For support, please call the Service Center at 1-855-238-5607.
• This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for
their safety.
• Children should be supervised to ensure that they do not play with the air conditioner.
• The appliance shall be installed in accordance with national wiring regulations.
• Do not operate your air conditioner in a humid room such as a bathroom or laundry room.
CAUTION

User Manual Page 3
SAFETY PRECAUTIONS
To prevent injury to the user or other people and property damage, the instructions shown here must be
followed. Incorrect operation due to ignoring of instructions may cause harm or damage. The level of risk
is shown by the following indications.
Safety
Precautions
WARNING This symbol indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
This symbol indicates a hazardous situation, which, if not avoided,
could result in minor or moderate injury.
NOTICE
This symbol addresses practices not related to physical injury.
• Be sure the air conditioner has been securely and correctly installed according to the
installation instructions in this manual. Save this manual for possible future use in removing or
installing this unit.
• Plug in power cord plug properly.
Otherwise, it may cause electric shock or  re due to excess heat generation.
• Do not modify power cord length or share the outlet with other appliances as it may cause
electric shock or  re due to overheating.
• Always ensure e ective grounding.
Incorrect grounding may cause electric shock.
• Unplug the unit if you notice unusual sounds or smells or smoke coming from it.
A damaged product may cause  re and electric shock.
• Ventilate room before operating the air conditioner if there is a gas leakage from another
appliance.
• Do not operate or stop the unit by inserting or pulling out the power cord plug.
• Do not operate with wet hands or in very humid environments.
It may cause electric shock.
• Do not allow water to come into contact with any electric parts.
It may cause failure or electric shock.
• Do not use the socket if it is loose or damaged.
It may cause  re and electric shock.
• Do not use or keep the power cord close to heating appliances.
It may cause  re and electric shock.
• Do not use any devices or materials for installation that are not recommended in this manual.
• Do not disassemble or modify unit.
It may cause failure and electric shock.
WARNING

Page 4 User Manual
Safety
Precautions
• Do not damage or use an alternate power cord.
It may cause  re and electric shock.
If the power cord is damaged, it must be replaced by the manufacturer or an authorized service
center or a similarly quali ed person in order to avoid a hazard.
• Do not direct air ow straight into persons to avoid possible health hazard.
• Do not open the unit during operation.
It may cause electric shock.
• Do not use the power cord near  ammable gas or combustibles, such as gasoline, benzene,
thinner, etc.
It may cause an explosion or  re.
• Do not let children hang on the air conditioner or bracket.
A serious injury may occur.
• Avoid  re hazard or electric shock. Do not use an extension cord or an adaptor plug. Do not
remove any prongs from the power cord.
• Be sure the air conditioner is properly grounded. To minimize shock and  re hazards, proper
grounding is important. The power cord is equipped with a three-prong grounding plug for
protection against shock hazards.
• Your air conditioner must be used in a properly grounded wall receptacle. If the wall receptacle
you intend to use is not adequately grounded or protected by a time delay fuse or circuit
breaker, have a quali ed electrician install the proper receptacle. Ensure the receptacle is
accessible after the unit installation.
• 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.
• Do not drink the drain water. It may contain mold and bacteria that can lead to death if ingested.
• When the air  lter is to be removed, do not touch the metal parts of the unit.
It may cause injury.
• When the unit needs cleaning, switch o , and turn o the circuit breaker.
Do not clean unit when power is on as it may cause  re, electric shock or injury.
• Do not place obstacles around air inlets or inside of air outlet.
It may cause failure or accident.
• Clean with a soft cloth only. Do not use strong detergents that contain wax or thinners as it may
damage the product.
• Use caution when unpacking and installing. Sharp edges could cause injury.
• Do not clean the air conditioner with water.
Water may enter the unit and degrade the insulation which could lead to electric shock.
WARNING
CAUTION

User Manual Page 5
Safety
Precautions
• Do not put a pet or house plant where it will be exposed to direct air  ow.
This could injure the pet or harm the plant.
• Hold the plug by the head of the power plug when taking it out.
Otherwise, it may cause electric shock and damage.
• Ensure that the installation is properly secured to prevent the product from potentially falling.
• Do not place heavy objects on the power cord and ensure that the cord is not compressed.
Otherwise, there is danger of  re or electric shock.
• If water is spilled on the unit, turn o the unit and switch o the circuit breaker. Isolate supply by
taking the power-plug out and contact a quali ed service technician.
• Do not use near gas stove or other gas burning appliances, as air  ow may a ect gas
combustion.
• Do not use for any purpose other than room comfort.
Do not use this air conditioner to preserve precision devices, food, pets, plants, and art objects.
It may cause deterioration.
• Turn o the main power switch if the unit is not to be used for an extended time.
• Always insert the  lters securely. Clean  lter once every two weeks.
Operation without  lters may cause failure.
CAUTION
Caution: Risk of fire/
flammable materials
(Required for R32/R290 units only)
IMPORTANT NOTE:Read this manual
carefully before installing or operating
your new air conditioning unit. Make sure
to save this manual for future reference.

Page 6 User Manual
Safety
Precautions
WARNING
This symbol shows that this appliance used a  ammable refrigerant.
If the refrigerant is leaked and exposed to an external ignition source,
there is a risk of  re.
CAUTION This symbol shows that the operation manual should be read carefully.
CAUTION This symbol shows that a service personnel should be handling this
equipment with reference to the installation manual.
CAUTION This symbol shows that information is available such as the operating
manual or installation manual.
EXPLANATION OF SYMBOLS DISPLAYED ON THE UNIT
• Do not try to accelerate the defrosting process or methods of cleaning that are not
recommended by the manufacturer.
•The appliance shall be stored in a room without a continuously operating ignition source (for
example, open fl ames or an operating gas appliance) or an ignition source (for example, an
operating electric heater) close to the appliance. The appliance shall also be stored in a room
without ignition sources.
•Do not pierce or burn.
• Be aware that the refrigerants may not contain an odor.
• Keep ventilation openings clear of obstruction.
•Unit is only to be serviced by a Toshiba authorized servicer, please call Customer Service at
1-855-238-5607 for support.
•Flammable refrigerant R32 is used within air conditioner. Please follow the instructions carefully
to handle, install, clean, and service the air conditioner to avoid damage or hazard. Do not
dispose of air conditioner in regular trash. Contact qualifi ed agency for proper disposal.
•No open fi re or devices that generate spark/arcing shall be around the air conditioner to avoid
causing ignition of the fl ammable refrigerant used. Please follow the instructions carefully to
store or maintain the air conditioner to prevent mechanical damage from occurring.
WARNING (for using R32 refrigerant only)

User Manual Page 7
The power supply cord with this air conditioner
contains a current detection device designed
to reduce the risk of  re.
In the event that the power supply cord is
damaged, it can not be repaired. It must be
replaced with a cord from the manufacturer.
Safety
Precautions
• Do not use this device to turn the unit on or o .
• Always make sure the RESET button is pushed in for correct operation.
• The power supply cord must be replaced if it fails to reset when either the TEST button is pushed,
or it can not be reset. Please contact Customer Service.
Grounding type wall receptacle
Do not, under any
circumstances, cut,
remove or bypass
the grounding prong.
Power supply cord with 3-prong grounding
plug and current detection device.
The power supply cord contains a current
measuring device that detects damage to the
power cord. Test your power supply cord as
follows:
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. You will notice a click
as the button engages.
4. The power supply cord is now supplying
electricity to the unit. (On some products this
is also indicated by a light on the plug head.)
RESET
TEST
Plug in & press RESET
Operation of Current Device
NOTICE
NOTICE

Normal Sounds
OPERATING INSTRUCTIONS
NOTE
All the pictures in this manual are for illustrative purposes only. The actual appearance of the air
conditioner you purchased may vary slightly, but its operation and functions will be similar.
Operating
Instructions
RAC-WK05 Models
RAC-WK08 / RAC-WK10 / RAC-WK12 Models
Gurgle/Hiss
Gurgling or hissing
noises may be heard due
to refrigerant owing
through evaporator
during normal operation.
Sound of Rushing Air
In front of the unit, you
may hear the sound of
rushing air being moved
by the fan.
High Pitched Sound
High eciency compressors
may have a high pitched sound
during cooling cycle.
Vibration
Unit may vibrate and
make noise because
of poor wall or window
construction or
incorrect installation.
Trickling Sound
Droplets of water
hitting condenser
during normal
operation may cause
a trickling sound.
Gurgle/Hiss
Gurgling or hissing
noises may be heard due
to refrigerant owing
through evaporator
during normal operation.
Sound of Rushing Air
In front of the unit, you
may hear the sound of
rushing air being moved
by the fan.
Vibration
Unit may vibrate and make
noise because of poor wall
or window construction or
incorrect installation.
Trickling Sound
Droplets of water
hitting condenser
during normal
operation may cause
a trickling sound.
High Pitched Sound
High eciency compressors may
have a high pitched sound during
cooling cycle.
Page 8 User Manual

Operating
Instructions
Air Conditioner Features (general)
Air Conditioner Features (RAC-WK05 only)
This air conditioner is designed to be operated under the following conditions:
Cooling Operation
Outdoor temp.: 18 ~ 43°C / 64 ~ 109°F
Indoor temp.: 17 ~ 32°C /62 ~ 90°F
NOTES
• The relative humidity of room should be less than 80%. If the unit is used in a condition with a
relative humidity over 80%, there will be condensed water on the surface of the unit.
• Performance may be reduced outside of these operating temperatures.
WARNING
To reduce the risk of fire, electrical shock, or injury to people or property, read the
SAFETY PRECAUTIONS before operating this appliance.
To begin operating the air conditioner, follow these steps:
1. Set the thermostat to the highest number (coldest or cooler setting).
2. Set the selector control to the highest COOL setting.
3. Adjust the louver for comfortable air  ow (see Air Directional Louvers).
4. Once the room feels cooled, adjust the thermostat to the setting you  nd most comfortable.
5. Make sure that the air  ow inside and outside are not obstructed.
NOTE
Always wait 3 minutes when turning the unit o and then on again, or when changing from cool to
fan and back to cool. This prevents compressor from overheating and possible tripping.
Air Directional Louvers
The louvers will allow you to direct the air  ow Left
or Right, or Up and Down (optional on some models)
throughout the room as needed.
Move the Levers from side to side until the desired
LEFT/RIGHT direction is obtained.
You can also move the LEFT lever to adjust air  ow
UP/DOWN as needed
Levers
Air Direction
User Manual Page 9

THERMOSTAT
The thermostat is used to set the desired room temperature when
the unit is being operated in the COOL MODE.
To set the desired room temperature, rotate the thermostat switch
to the desired setting. After the set temperature is achieved the
thermostat will automatically start and stop the compressor in
order to maintain the desired set temperature.
Rotate the thermostat selector clockwise for higher cool settings.
Higher cool settings will provide lower room temperature. Rotate
the thermostat selector counter clockwise for lower cool settings.
Lower cool settings will provide higher room temperature.
COOL MODE
The desired cool setting is selected by rotating the knob to the right
to the desired position.
has maximum cooling e ect and air ow.
has minimum cooling e ect and air ow.
FAN MODE
Rotate the knob to the left to select your choice of fan speeds for air
circulation.
NOTE: When selecting a low fan or high fan, the compressor will not run.
Operating
Instructions
Air Conditioner Features (RAC-WK05 only)
NOTE
The controls featured in this manual are representative of
many available models. Your model may o er slightly di erent
features.
TEMP
MIN
COOL
MAX
COOL
MODE
Page 10 User Manual

TO TURN UNIT ON OR OFF:
.
NOTE: The unit will automatically initiate the Energy
Saver function under Cool, Dry, Auto modes.
TO CHANGE TEMPERATURE SETTING:
Press UP/DOWN button to change temperature setting.
NOTE: Press or hold either UP ( ) or DOWN ( ) button
until the desired temperature is seen on the display.
This temperature will be automatically maintained
anywhere between 17°C (62°F) and 30°C (86°F). If
you want to display the actual room temperature,
see To Operate on Fan Only section.
TO ADJUST FAN SPEEDS:
Press to select the Fan Speed in four steps - Auto,
Low, Med or High. Each time the button is pressed,
the fan speed mode is changed. On Dry mode,
the fan operates on Low speed automatically and
cannot be changed.
On Auto mode,the fan operates on Auto fan
speed automatically and cannot be changed.
SLEEP FEATURE:
Press Sleep button to initiate the sleep mode. In
this mode the selected temperature will increase
by 1(or 2)°C / 2°F 30 minutes after the mode is
selected.
Key Pad Features
Operating
Instructions
The temperature will then increase by another
1(or 2)°C / 2°F after an additional 30 minutes. This
new temperature will be maintained for 7 hours
before it returns to the originally selected
temperature. This ends the Sleep mode and
the unit will continue to operate as originally
programmed. The Sleep mode program can
be cancelled at any time during operation by
pressing the Sleep button again.
CHECK FILTER FEATURE:
lter button to initiate this feature.
This feature is a reminder to clean the Air Filter for
cient operation. The light will illuminate
after 250 hours of operation. To reset after
lter, press the Check Filter button
.
ENERGY SAVER FEATURE (ECO):
Press Energy Saver button to initiate this
function. This function is available on COOL,
DRY, AUTO (only AUTO-COOLING and AUTO-FAN)
modes. The fan will continue to run for 3 minutes
after the compressor shuts o .The fan then
cycles on for 2 minutes at 10 minute intervals
until the room temperature is above the set
temperature, at which time the compressor turns
back on and Cooling resumes.
Before you begin, thoroughly familiarize yourself with the control panel as shown below and all its
functions, then follow the symbol for the functions you desire. The unit can be controlled by the unit
control alone or with the remote.
Electronic Control Operating Instructions
Air Conditioner Features (Models RAC-WK08 / 10 / 12)
Energy
Saver
LED
Display
Clean
Filter
Timer
Button
Power
Button
Sleep
Button
Fan
Button
Up ( ) and Down ( )
Buttons
Mode
Button
Connect Indicator Light
(Smart models only)
AA
User Manual Page 11

indicator light illuminates. It indicates the Auto
Stop program has initiated.
TO SELECT THE OPERATING MODE:
To choose operating mode, press Mode button.
Each time you press the button, a mode is selected
in a sequence that goes from Auto, Cool, Dry and
Fan. The indicator light adjacent will be illuminated
and remain on once the mode is selected.
When the unit is turned o˜ and back on via the
power button, the unit will automatically switch on
the Energy Saver function for the following modes:
Cool, Dry, Auto.
To operate on Auto feature:
- When you set the air conditioner to AUTO mode,
it will automatically select cooling or fan only
operation depending on what temperature you
have selected and the current room temperature.
- The air conditioner will control room
temperature automatically according to
temperature you’ve set.
- In this mode, the fan speed cannot be adjusted
as it’s automatically controlled according to
temperature setting and room temperature.
To operate on Fan Only:
- Use this function only when cooling is not
desired, such as for room air circulation
or to exhaust stale air (on some models).
(Remember to open the vent during this
function, but keep it closed during cooling for
ciency.) You can choose
any fan speed you prefer.
-During this function, the display will show
the actual room temperature, not the set
temperature as in the cooling mode.
- In Fan Only mode, the temperature is not
adjusted.
To operate on Dry mode:
- In this mode, the air conditioner will generally
er. Since the
conditioned space is a closed or sealed area,
some degree of cooling will occur.
TIMER: AUTO START/STOP FEATURE:
When the unit is on, press the Timer
button. The “Timer o˜” LED indicator
light will illuminate indicating the Auto
stop feature has been activated.
When the unit is o˜, press the Timer
button. The “Timer on” LED indicator
light will illuminate indicating the Auto
start feature has been activated.
- When the time of TIMER ON is displayed,
press the Timer button again. The TIMER OFF
- Press or hold the UP or DOWN button to
change the Auto time by 0.5 hour increments,
up to 10 hours, then at 1 hour increments up to
24 hours. The control will count down the time
remaining until start.
- The selected time will register in 5 seconds,
and the system will automatically revert back
to display the previous temperature setting or
room temperature when the unit is on. (when
, there is no display.)
- Turning the unit ON or OFF at any time or
adjusting the timer setting to 0.0 will cancel
the Auto Start/Stop timed program.
Operating
Instructions
Displays
DISPLAYS:
Shows the set temperature in “°F”“or °C” and the
Auto-timer settings. While on Fan Only mode, it shows
the room temperature. If the room temperature is too
high or low, it will display "HI" or "LO"
Error codes:
AS - Room temperature sensor error - Unplug the
unit and plug it back in. If error repeats, call
for service.
ES - Evaporator temperature sensor error -
Unplug the unit and plug it back in. If error
repeats, call for service.
DISPLAYS
NOTES
To cancel timer operation, press and
hold the timer button for 2 seconds until the
beep/buzzer is heard.
NOTE
• To change the AC between Celsius and
Fahrenheit scales, press the temperature
control arrows at the same time for 5
seconds.
• If the unit shuts off unexpectedly due to
the power outage, it will restart with the
previous function setting automatically
when the power resumes.
Page 12 User Manual

Window Requirements
Tools You Will Need
Tools You May Use
INSTALLATION INSTRUCTIONS
WARNING - Before You Begin
Read these instructions completely and
carefully.
• IMPORTANT - Save these instructions for
local inspector’s use.
• IMPORTANT - Observe all governing codes
and ordinances.
• Note to Installer - Be sure to leave these
instructions with the consumer.
• Note to Consumer - Keep these instructions
for future reference.
• Skill level - Installation of this appliance
requires basic mechanical skills.
• Completion time - Approximately 1 hour.
We recommend that two people install this
product.
Proper installation is the responsibility of the
installer.
Product failure due to improper installation is
not covered under the Warranty.
You MUST use all supplied parts and use proper
installation procedures as described in these
instructions when installing this air conditioner.
Do not, under any circumstances, cut or remove
the third (ground) prong from the power cord.
Do not change the plug on the power cord of
the air conditioner.
Aluminum house wiring may present special
problems - consult a quali ed electrician.
When handling unit, be careful to avoid cuts
from sharp metal edges and aluminum  ns on
front and rear coils.
NOTE
Save carton and these Installation Instructions
for future reference. The carton is the best way
to store unit during winter, or when not in use.
Installation
Instructions
Your air conditioner is designed to install in
standard double hung windows with opening
widths of 584mm to 914mm (23” to 36”).
Model 5000
BTU/h 8000 BTU/h 10000~12000 BTU/h
H13”
(330mm)
14”
(356mm) (394mm)
15-1/2”
Table 1
H
Wooden Windows
INTERIOR
WALL
OFFSET
WINDOW
SILL
INNER
EXTERIOR
WALL
Fig. D
Phillips
Screwdriver
Level
Flathead
Screwdriver
Pencil
Ruler or tape measure
Scissors or knife
User Manual Page 13

1. Prepare the Window
2. Prepare Air Conditioner
Installation
Instructions
Lower sash must open sufficiently to allow a clear vertical opening (see dimension H in Table 1).
Side louvers and the rear of the AC must have clear air space to allow enough airflow through the
condenser for heat removal. The rear of the unit must be outdoors, not inside a building or garage.
Mounting Hardware
3/4’’ (or 1/2”)
Screws
(7)
Lock Frame
(For Wooden windows)
(2)
Sash Lock
(1)
Window sash
seal foam
(1)
Weather stripping
10”*3/4”*1/12”
(5)
Lock Frame
(For Vynil-Clad windows)
(2)
A: Remove the air conditioner from the carton and place on a  at surface.
B: Remove top rail from the packaging material as shown in Fig. A.
3/8” Screws
(4)
Top Rail
(1)
Top Rail Hardware
NOTE
Weather stripping is only for
ENERGY STAR models only.
Packaging
Fig. A
Top Rail
Top Rail
Fig. A
Page 14 User Manual

C. Align the hole in the top rail
with those in the top of the
unit as shown in Fig. B.
D. Secure the top rail to the
unit with the 3/8” Screws as
shown in Fig. C.
Fig. 1
A. Place unit on floor, a bench or a table. Hold the Accordion
Panel in one hand and gently pull back the center to free the
open end. See Fig. 1.
NOTE
For safety reasons, all four
(4) screws MUST be securely
fastened.
RAC-WK05 Models RAC-WK08/10/12 Models
3. Install the Accordion Panels on Air Conditioner
NOTE
NOTE
Before installing unit, the top rail must be assembled on the unit.
Top rail and Sliding Panels at each side are o set to provide the proper pitch to the rear of (5/16”).
This is necessary for proper condensed water management and drainage. If you are not using the
Side Panels for any reason, this pitch to the rear must be maintained.
Fig. C
Fig. B
Fig.B
Fig.C
Fig. C
Fig. B
Installation
Instructions
User Manual Page 15

NOTE
If storm window blocks AC, see Fig. 15.
Top Rail
Bottom Rail
Fig. 3
B. Slide the free end “I“ section of the panel directly into the
cabinet as shown in Fig. 2. Slide the panel down. Be sure to
leave enough space to slip the top and bottom of the frame into
the rails on the cabinet.
C. Once the panel has been installed on the side of the cabinet,
make sure it sits securely inside the frame channel by making
slight adjustments.
Slide the top and bottom ends of the frame into the top and
bottom rails of the cabinet. Fig. 3.
Top Rail
Bottom Rail
Top left Top right
Fig. 4
D. Slide the panel all the way in and repeat on
the other side.
4. Secure the Accordion Panels
NOTE
Check that air conditioner is tilted back
per dimension H (Fig. 5) (tilted about 3° to
4° downward to the outside). After proper
installation, condensate should not drain
from the overflow drain hole during normal
use. Adjust the slope if otherwise.
A. Keep a  rm grip on the air conditioner, carefully
place the unit into the window opening so the
bottom of the air conditioner frame is against
the window sill (Fig. 5). Carefully close the
window behind the top rail of the unit.
Wooden Windows
INSIDE
OUTSIDE
H:About 3/4” to 1”
for 8K)
Measure from the cabinet edge
3
H:About 1” to 1 /
for 10K to 12K)
8”
H
H:About 5/8” to 3/4”
for 5K)
Vinyl-Clad Windows
INSIDE
OUTSIDE
H:About 3/4” to 1”
for 5K to 8K)
Measure from the cabinet edge
3
H:About 1” to 1 /
for 10K to 12K)
8”
H
Fig. 5
Installation
Instructions
“I” section
Fig. 2 “I“ section
User ManualPage 16

window
frame
Fig. 6
Fig. 7A Fig. 7B
Fig. 9
Fig. 9
FOAM SEAL
Fig. 10
A. Place the frame lock between the frame extensions
and the window sill as shown (Fig. 7A for Wooden
windows), (Fig. 7B for Vinyl-Clad windows).
Drive 19 mm (3/4”) or 12.7 mm (1/2”) locking
screws through the frame lock and into the sill.
NOTE: To prevent window sill from splitting, drill 3
mm (1/8”) pilot holes before driving screws.
B1: For wooden windows:
Drive 12.7 mm (1/2”) locking screws through the frame lock and
into the sill (Fig. 8A).
NOTE: To prevent window sill from splitting, drill 3mm (1/8”)
pilot holes before driving screws. Drive 12.7mm (1/2”)
locking screws through frame holes into window sash (Fig.
8B/8C).
B2: For Vinyl-Clad windows:
Drive 12.7 mm(1/2” ) locking
screws through the frame
lock and into the window
sash (Fig. 8B).
NOTE: Before driving the
screws, use a drill to drill 5
holes through the holes in
the frame lock and frame
extensions into the windows
sash as shown (Fig. 8B/8C).
B. Extend the side panels out against the window frame (Fig. 6).
5. Install Support Bracket
Fig.8
Fig. 8B Fig.8 Fig. 8C
RAC-WK05 only Models RAC-WK06/08/10/12
Installation
Instructions
Fig. 8A
C. To secure lower sash in
place, attach right angle
sash lock with 19 mm(3/4” )
or 12.7 mm (1/2”) screw as
shown (Fig. 9).
D. Cut Window sash seal foam
and insert it in the space
between the upper and
lower sashes (Fig. 10).
User Manual Page 17

7. Install Weather Stripping (ENERGY STAR models only)
If AC is Blocked by Storm Window
Fig. 14
In order to minimize air leaks between the
room air conditoner and the window opening,
trim the weather stripping to the proper
length, peel off the protective backing and
plug any gaps if needed (Fig. 14).
SASH
38 mm min
(1-1/2") Board thickness
as required, for
proper pitch to rear,
along entire
sill. Fasten with nails
or screws.
Storm window
frame or other
obstruction.
Fig. 15
Add wood as shown in Fig. 15, or remove
storm window before air conditioner is
installed.
If storm window frame must remain, be sure
the drain holes or slots are not caulked or
painted shut. Accumulated rain water or
condensation must be allowed to drain out.
Models RAC-WK05/06/08/10/12
Installation
Instructions
Removing AC From Window
•Turn AC off , and disconnect power cord.
• Remove sash seal from between windows, and unscrew safety lock.
• Remove screws installed through frame and frame lock.
• Close (slide) side panels into frame.
•Keeping a fi rm grip on air conditioner, raise sash and carefully remove.
• Be careful not to spill any standing water while lifting unit from window. Store parts WITH air
conditioner.
Page 18 User Manual

Air Filter Cleaning
Cabinet Cleaning
Winter Storage
The air  lter should be checked at least once a month to
see if cleaning is necessary. Trapped particles in the  lter
can build up and cause an accumulation of frost on the
cooling coils.
• Remove the  lter by sliding it out from the right-
hand side. (RAC-WK05 only)
• Push the vent handle to the Vent Closed position
(where applicable).
• Grasp the  lter by the center and pull up and out.
• Wash the  lter using liquid dishwashing detergent
and warm water. Rinse  lter thoroughly.
• Gently shake excess water from the  lter. Be sure the
 lter is thoroughly dry before replacing.
• You may also vacuum the  lter clean rather than
washing.
• Be sure to unplug the air conditioner to prevent shock or  re hazard. The cabinet and front may be
dusted with an oil-free cloth or washed with a cloth dampened in a solution of warm water and mild
liquid dishwashing detergent. Rinse thoroughly and wipe dry.
• Never use harsh cleansers, wax or polish on the cabinet front.
• Be sure to wring excess water from the cloth before wiping around the controls. Excess water in or
around the controls may cause damage to the air conditioner.
• Plug in air conditioner.
If you plan to store the air conditioner during the winter, remove it carefully from the window
according to the installation instructions. Cover it with plastic or return it to the original carton.
CARE AND CLEANING
NOTE
Never use hot water over 40°C(104°F ) to clean the
air fi lter. Never attempt to operate the unit
without the air fi lter.
CAUTION
Clean your air conditioner occasionally to keep it looking new. Be sure to unplug the unit
before cleaning to prevent shock or  re hazards.
Care and Cleaning
RAC-WK05 only
Models RAC-WK08 / 10 / 12
• Open the front panel. (RAC-WK08/10/12)
User Manual Page 19

TROUBLESHOOTING TIPS
Troubleshooting
Tips
Before calling for service, review this list. It may save you time and expense. This list includes common
occurrences that are not the result of defective workmanship or materials in this appliance.
Problem Solution
Air conditioner
does not start.
Wall plug disconnected. Push plug  rmly into wall outlet.
Circuit breaker tripped. Reset circuit breaker.
Check if the light on the plug is on. If it is o , press the RESET button.
Power is OFF. Turn power ON.
Unit turned o and then on quickly. Turn unit o and wait 3 minutes before
restarting.
Air from unit
does not feel cold
enough.
Room temperature below 17°C (62°F). Cooling may not occur until
room temperature rises above 17°C (62°F).
Temperature sensor behind the air  lter is touching the cold coil. Try to move it
so it does not contact the cold coil.
Reset to a lower temperature.
Compressor shut-o by changing modes. Wait approximately 3 minutes and
listen for compressor to restart when set in the COOL mode.
Check for potential obstructions blocking the outdoor intake/exhaust. Clear any
obstructions.
Air conditioner
cooling, but
room is too warm
- ice forming
on cooling coil
behind air filter.
Outdoor temperature below 18°C (64°F). To defrost the coil, set to FAN ONLY
mode.
Air  lter may be dirty. Clean  lter. Refer to Care and Cleaning section. To defrost,
set to FAN ONLY mode.
Thermostat set too cold for night-time cooling. To defrost the coil, set to FAN
ONLY mode. Then, set temperature to a higher setting.
Air conditioner
cooling, but room
is too warm -
NO ice forming
on cooling coil
behind air filter.
Dirty or restricted air  lter. Clean  lter. Refer to Care and Cleaning section. To
defrost, set to FAN ONLY mode.
Temperature is set too high, set temperature to a lower setting.
Air directional louvers positioned improperly. Position louvers for better air
distribution.
Front of unit is blocked by drapes, blinds, furniture, etc. - restricts air distribution.
Clear obstruction in front of unit.
Any open doors, windows, or registers may allow cold air to escape. Close any
doors, windows, or registers.
The room may be too warm. Allow additional time to remove “stored heat” from
walls, ceiling,  oor and furniture.
Page 20 User Manual