Mars Comfort-Aire REG-183R01 User manual

Owner’s Manual - REG183-R01, REG243-R01
1
517.787.2100 • www.marsdelivers.com
OWNER’S MANUAL
Window Type Room Air
Conditioner with Electric Heat
Model
REG-183R01 REG-253R01
WINDOW TYPE ROOM AIR CONDITIONER
Owner’s Manual
IMPORTANT NOTE:
Before using your air conditioner, please read this manual
and SAFETY MANUAL (if any) carefully and keep it for future reference.
WA Series
EN

Owner’s Manual - REG183-R01, REG243-R01
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CONTENTS
Safety precautions
Installation instructions
Confirm your package contents
Before you get started
Install your product.
Operation instructions
Get to know your AC
Get to know the features
Cleaning & Maintenance
Troubleshooting

Owner’s Manual - REG183-R01, REG243-R01
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Inside you will 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 chart of troubleshooting tips. If you review our chart of
Troubleshooting Tips first, you may not need to call for service at all.
To prevent injury to the user or other people and property
damage, the following instructions must be followed.
Incorrect operation due to ignoring of instructions may
cause harm or damage. The seriousness is classified by the
following indications.
Safety Precautions
Warning
The signal word indicates a hazard with a medium level of risk which, if not avoided, may result in death or serious injury.
Always do this
This signal means that the operation can be performed.
Caution
The signal word indicates a hazard with a low degree of risk which, if not avoided, may result in minor or moderate injury.
Explanation of Symbols
Never do this
This signal indicates the prompt operation is prohibited., if not avoided, may result in Product damaged or injury.

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Plug in power plug properly. Otherwise, it may cause electric shock
or fire due to excess heat generation. Do not operate or stop the unit
by inserting or pulling out the power plug.It may cause electric shock
or fire due to heat generation. Do not damage or use an unspecified
power cord.It may cause electric shock or fire. If the power cord is
damaged, it must be replaced by the manufacturer or an authorised
service centre or a similarly qualified person in order to avoid a hazard.
Always install circuit breaker and a dedicated power circuit. Incorrect
installation may cause fire and electric shock. Do not operate with wet
hands or in damp environment. It may cause electric shock . Do not
direct airflow at room occupants only. This could damage your health.
Always ensure eective grounding.Incorrect grounding may cause
electric shock. Do not allow water to run into electric parts.It may
cause failure of machine of electric shock. Do not modify power cord
length or share the outlet with other appliances. It may cause electric
shock or fire due to heat generation.
WARNING
Unplug the unit if strange sounds, smell, or smoke
comes from it. It may cause fire and electric shock.
Do not use the socket if it is loose or damaged. It
may cause fire and electric shock. Do not open the
unit during operation. It may cause electric shock.
Keep firearms away. It may cause fire. Do not use
the power cord close to heating appliances.It may
cause fire and electric shock. Do not use the power
cord near flammable gas or combustibles, such as
gasoline, benzene, thinner, etc. It may cause an
explosion or fire.
Ventilate room before operating air conditioner if
there is a gas leakage from another appliance. It may
cause explosion, fire and, burns. Do not disassemble
or modify unit. It may cause failure and electric shock.
When the air filter is to be removed, do not touch the metal parts of
the unit. It may cause an injury.
Ventilate the room well when used together with a stove, etc. An
oxygen shortage may occur.
Do not use strong detergent such as wax or thinner but use a soft cloth.
Appearance may be deteriorated due to change of product color or
scratching of its surface. Do not clean the air conditioner with water.
Water may enter the unit and degrade the insulation. It may cause an
electric shock. Do not use for special purposes. Do not use this air
conditioner to preserve precision devices, food, pets, plants, and art
objects.lt may cause deterioration of quality, etc.
CAUTION
Stop operation and close the window in storm or
hurricane. Operation with windows opened may cause
wetting of indoor and soaking of household furniture.
When the unit is to be cleaned, switch o, and turn o
the circuit breaker.
Do not clean unit when power is on as it may cause fire
and electric shock, it may cause an injury.
Always insert the filters securely. It can be caused
failure if operated without filters. Please clean filter
once every two weeks.

Owner’s Manual - REG183-R01, REG243-R01
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Cooling
operation
Outdoor temp:
Indoor temp:
Heating
operation
Outdoor temp:
O
O
23-76 F/ C-5-24
Indoor temp:
O
32-80 F/
O
0-27 C
O O
64-109 F/18-43 C
O
62-90 F/
O
17-32 C
NOTE
Note:Performance may be
reduced outside of these
operating temperatures.
This air conditioner is designed to be operated under the following conditions:
Do not place obstacles around air-inlets or inside of air-outlet.
It may cause failure of appliance or accident. Do not place
heavy object on the power cord and ensure that the cord is
not compressed. There is danger of fire or electric shock. Don’t
drink water drained from air conditioner. It contains
contaminants and could make you sick.
Use caution when unpacking and installing. Sharp edges could
cause injury.
If water enters the unit, turn the unit o at the power outlet
and switch o the circuit breaker. Isolate supply by taking the
power-plug out and contact a qualified service technician.
This appliance is not intended for use by persons(including
children) with reduced physical ,sensory or mental capabilities
or lack of experience and knowledge,
CAUTION
Hold the plug by the head of the power plug when taking
it out. It may cause electric shock and damage. Turn o the
main power switch when not using the unit for a long time.
It may cause failure of product or fire.
Installation must be performed in accordance with the
requirement of NEC and CEC by authorized personnel only.
Do not operate your air conditioner in a wet room such as a
bathroom or laundry room.
The appliance with electric heater shall have at least 1 meter
space to the combustible materials.
Contact the authorised service technician for repair or
maintenance of this unit.
Contact the authorised installer for installation of this unit.
unless they have been given super vision 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 appliance.
If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified persons
in order to avoid a hazard.
The appliance shall be installed in accordance with national
wiring regulations.

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NOTE
Operation of Current Device
The power supply cord contains a current device that senses damage to the power cord. To test your power supply cord do
the following:
Plug in the Air Conditioner.
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.
Press the RESET button again, you will notice a click as the button engages.
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).
Do not, under any
circumstances, cut,
remove, or bypass
the grounding prongs.
Grounding type wall receptacle
Power supply cord with
3-prong grounding plug
and current detection
device.
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 if it
cannot be reset. A new one can be obtained from the
product manufacturer.
The power supply cord with this air conditioner
contains a current detection device designed to reduce
the risk of fire.
In the event that the power cord is damaged, it cannot
be repaired – it must be replaced with a cord from the
product manufacturer.

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Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
To reduce the risk of fire, electrical shock, or injury to persons
when using your air conditioner, follow basic precautions,
including the following:
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 the cabinet and
behind the grille.
For Your Safety
Prevent Accidents
If the air conditioner is to be installed in a window,you will
probably want to clean both sides of the glass first. If the
window is a triple-trackty pew it has creen panel included,
remove the screen completely before installation.
Be sure the air conditioner has been securely and correctly in
stalled according to the installation instructions in this manual.
Save this manual for possible future use in removing or
installing this unit. When handling the air conditioner, be
careful to avoid cuts from sharp metal fins on front and rear
coils.
WARNING
The complete electical rating of your new room air conditioner
is stated on the serial plate. Refer to the rating when checking
the electrical requirements.
Be sure the air conditioner is properly grounded. To minimize
shock and fire 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 qualified electrician install the proper
receptacle. Ensure the receptacle is accessible after the unit
installation.
Do not run air conditioner without side protective cover in
place.This could result in mechanical damage within the air
conditioner.
Do not use an extension cord or an adapter plug.
Electrical Information
Avoid fire hazard or electric shock. Do not use an extension
cord or an adapter plug. Do not remove any prongs from
the power cord.
Electronic Work
NOTE: The cographs are for
explanation purpose only. Your
machine may be slightly dierent.
The actual shape shall prevail.
WARNING:
BEFORE PERFORMING ANY ELECTRICAL OR WIRING
WORK, TURN OFF THE MAIN POWER TO THE SYSTEM.
DISPLAY
MAIN
CONTROL
POWER
SUPPLY
CORD

Owner’s Manual - REG183-R01, REG243-R01
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Confirm your package contents. Unpacking inspection
Used for replacing the damaged foam on the cabinet when
disassembling and assembling.
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Top Rail and Foam (with glue)
Frame Assembly(Left & Right) and Side Retainer
Bottom Rail
Foam Seal (with glue) Window Sash Seal
Foam (non glue)
Cabinet Seal
Foam (glue)
Ground wire Remote controller
and batteries
NOTE
Level
Ruler or tape measureDrill
*Not Included
PencilGloves Screwdriver Scissors
Prepare the following tools
The unit you purchased may look like something
dierent, please refer to the material in kind.
Your unit may come with
internal packaging. This
packaging must be removed
prior to installing the air
conditioner back into the
cabinet as shown.
Shipping Packaging
Plastic tie
#1-Flat washer for window panels
Safety Lock
#2-Locknut
#3-Locknut
Sill Angle Bracket
Safety Lock and Foam (with glue)
(for Vinyl-Clad Window)
Support Bracket
X10 #7-Screw (7/16 inch)
X2
X2
X2
X4
X2
X7 #8-Screw (5/8 inch)
#6-Screw (11/16 inch)
#5-Screw (3/8 inch)
X2 #M4x8-Z
#4-Screw (9/16 inch)
#9-Screw (13/16 inch)
X4
X2
Foam insert R1 hardware (optional)
Before you get started.
NOTE
Installing your AC should take about
60 minutes.
The installation must be carried out
in strict accordance with the instructions
in this manual.
Manual
We recommend doing this with a helper. We’re here if you need us, please contact
your local distributor for assistance.
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.
Preparations before installation
WINDOW REQUIREMENTS
W
H
Your air conditioner is designed to install in a wooden sill double-hung window. All wood parts of
window must be in good shape and able to firmly hold the needed screws. If not, make repairs before
installing unit. If your storm window frame does not allow the clearance required, correct by adding a
piece of wood,or by removing storm window while room air conditioner is being installed.
The standard parts are for window dimensions listed below.
Unit height Unit width Min. window opening Min. window width Max. window width
18-5/8in(473mm)
17-5/8in(447mm) 23-5/8in(600mm) 18-1/2in(470mm)
26-1/2in(673mm) 19-1/2in(495mm)
40-1/2in(1029mm)28in(711mm)
31in(787mm) 42in(1067mm)
CAUTION
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 qualified electircian.When handling unit, be careful to avoid
cuts from sharp metal edges and aluminum fins on front and rear coils.
The rear of the unit must be outdoors, not inside a building or garage.

Owner’s Manual - REG183-R01, REG243-R01
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Before you get started.
NOTE
Installing your AC should take about
60 minutes.
The installation must be carried out
in strict accordance with the instructions
in this manual.
Manual
We recommend doing this with a helper. We’re here if you need us, please contact
your local distributor for assistance.
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.
Preparations before installation
WINDOW REQUIREMENTS
W
H
Your air conditioner is designed to install in a wooden sill double-hung window. All wood parts of
window must be in good shape and able to firmly hold the needed screws. If not, make repairs before
installing unit. If your storm window frame does not allow the clearance required, correct by adding a
piece of wood,or by removing storm window while room air conditioner is being installed.
The standard parts are for window dimensions listed below.
Unit height Unit width Min. window opening Min. window width Max. window width
18-5/8in(473mm)
17-5/8in(447mm) 23-5/8in(600mm) 18-1/2in(470mm)
26-1/2in(673mm) 19-1/2in(495mm)
40-1/2in(1029mm)28in(711mm)
31in(787mm) 42in(1067mm)
CAUTION
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 qualified electircian.When handling unit, be careful to avoid
cuts from sharp metal edges and aluminum fins on front and rear coils.
The rear of the unit must be outdoors, not inside a building or garage.

Owner’s Manual - REG183-R01, REG243-R01
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Install your product. Installation overview
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ＬＥＦＴ
1
2
3
4 4
5
7
6
8
9
Top Rail and 3/8in Screws
Air Conditioner unit
1
2
3
4
5
6
7
8
Safety Lock and 5/8in Screws
Safety Lock and 5/8in Screw
Frame Assembly(Left)
Frame Assembly(Right)
Side Retainer(both side)
Window Sash Seal Foam
9Remote controller
Illustrations in this manual are for
explanatory purposes. The actual
shape of your indoor unit may be
slightly dierent. The actual shape
shall prevail.
NOTE

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1Step
Assemble
your AC Cabinet.
What you need.
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ＬＥＦＴ

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Assemble your AC Cabinet.
12
Remove the front panel from the unit. Remove Air Conditioner
from Cabinet.
Step 1:
Pull down front grille
and remove filter.
Lift front grille upwards.
Step 2:
Locate the four front
screws and remove.
Pull down front grille and remove filter.
Lift front grille upwards and place to
one side. Locate the four front screws
and remove. These screws will be
needed to re-install the front panel.
Push metal cabinet side to release plastic tabs
on each side of front panel.
Gently lift front panel o unit.
Disconnect the connector plug of the display
panel from the unit and place front panel to
one side.
Step 4:
Disconnect the connector
plug of the display
panel from the unit.
Step 3:
Gently lift front
panel o unit.
Step 5:
Remove shipping
screws from the
top/side(if any) of unit.
Step 6:
Hold the cabinet while pulling on
the base pan handle, and carefully
remove the unit.
Step 7:
Add two Foam Inserts to
holes in top of cabinet
where shipping screws
were removed from.
Remove shipping screws from top of unit and also
on the side by the base if installed.
Hold the cabinet while pulling on the base pan
handle, and carefully remove the unit. Add two
foam inserts to holes in top of cabinet where
shipping screws were removed from.

Owner’s Manual - REG183-R01, REG243-R01
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Step 8:
Paste adhesive foam on
bottom of top frame strip.
Step 9:
Install top angle and
side retainers to the
cabinet by
10 screws (#7)
3
Ｒ ＩＧ Ｈ Ｔ
Pull the panels
out around.
4
Install the
panels.
5
Pull the Left&Right window
filler Panels out half
way around.
Ｒ ＩＧ Ｈ Ｔ
NOTE: 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 utilization
and drainage. If you are not
using the Side Panels for
any reason, this pitch to the
rear must be maintained.
Install top angle
and side Bracket.
Attach foam gasket to top angle
above holes.
Install top angle and side retainers
to cabinet (10 screws).
Place cabinet on floor, a bench,
or a table. Slide "I " section of
window filler panel into side
retainer on the both side of
the cabinet.
Top View
Air Conditioner
Cabinet Plastic
Frame
"Ⅰ" Section Win dow
Filler
Panel
Locking
Screw
Hole
Assemble your AC Cabinet.

Owner’s Manual - REG183-R01, REG243-R01
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ＲＩＧＨＴ
ＬＥＦＴ
4 5
Fasten the panels to the cabinet.
Stretch the wind screen outward and insert the upper
and lower frame strips of the Panels into the cabinet
card slot.
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ＬＥＦＴ
A
A
C C
BA
A
The cabinet is done.
Before you rush to the
next installation phase,
please first confirm the
following installation is
in place.
A. Insert the upper and lower frame strips
of the panels into the cabinet card slot.
B. Top Rail on the cabinet with 4 Screws.
C. Insert the card slot on the side of
the cabinet.
Assemble your AC Cabinet.

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2Step
Insulate
your window.
What you need.

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1 2
Cut the seal foam to the
width of your window,
and stick it of the underside.
You should cut the foam to be the width of your window
from the left to the right side. Make sure you’re cutting the
foam with the adhesive, and stick it of the underside.
In order to improve the operation of the equipment and
reduce the noise generated during operation, you need
to foam seal the gaps.
Insert the foam to the gaps.
*If your window already has a liner or insulation strip,
you can skip the above steps.
Insulate your window.

Owner’s Manual - REG183-R01, REG243-R01
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ＲＩＧＨＴ
ＬＥＦＴ
3Step
Install the AC on
the window.
What you need.

Owner’s Manual - REG183-R01, REG243-R01
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1
Place the assembled cabinet
on the window frame.
2
Screw the cabinet to the window sill.
(Wooden Window or Vinyl-Clad Window)
Angle：3-4°
Outside
Inside
Install the cabinet on the window.
Mark center of window inner sill. Place cabinet
in window with bottom sill angle firmly seated
over window sill. Bring window down temporarily
behind top angle to hold cabinet in place.
ＲＩＧＨＴ
ＬＥＦＴ
Step 1:
Make sure your cabinet
is centered on the windowsill.
Step 2:
Place cabinet
in window with bottom sill
angle firmly seated over
window sill.
Step 3:
Bring window down
temporarily behind top
angle to hold cabinet in place.
Step 4:
Screw the cabinet
to the sill according
to the type of window
you have. Screw the
ground wire on the
cabinet.
A. 1/4” Pan-head Phillips Screws
B. Safety Lock (Only for Vinly-Clad window)
C. Bottom Rail Foam Seal
D. Ground wire and #M4x8-Z screw
Window
inner Sill
Sill
Angle
Window
outer Sill
Measure from
the cabinet edge.
Shift cabinet left or
right as needed to
line up center of
cabinet on center
line marked on
inner sill.
Fasten cabinet to window
inner sill with two
screws(#6) into holes
(You may wish to pre-drill
pilot holes).
For wooden window: For Vinyl-Clad window:
For wooden window:
For Vinyl-Clad window:
Place two safety locks into the holes
located in the bottom of the cabinet
and drive two 1/4" pan-head Phillips
locking screws through the
safety locks into the cabinet.
Apply Bottom Rail Foam
Seal (#C) over screws fastening
bottom rail to window inner sill.
Screw the ground wire on the
cabinet .
C
D

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Angle：3-4°
OutsideInside
Step 5:
Assemble sill angle
bracket to support brackets
at the marked position.
(both side)
3
Install the sill angle bracket and support bracket
Install the support bracket
Hold each support bracket flush against outside
of sill, and tight to bottom of cabinet as shown.
Mark brackets at top level of sill and remove.
Window Sill
Sill Angle Bracket
Measure from
the cabinet edge.
#3-Locknut
#8-Screw
#8-Screw
Sill Angle
Bracket
2 Each Required For
Each Support Bracket
Locknut
Left
Right
Install support brackets(with sill angle
brackets attached) to correct hole in bottom
of cabinet. Tighten all 6 bolts securely.
Assemble sill angle bracket to support brackets
at the marked position(as shown above).
Hand tighten, but allow for any changes later.
NOTE: Check that air conditioner is tilted back about 1-1/4"to 1-5/8" (tilted about 3° to 4°downward to the outside). After proper
installation, condensate should not drain from the overflow drain hole during normal use,correct the slope otherwise.

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Step 6:
Slide the unit into the cabinet.
Please install the ground wire at the
unit with #M4 screws, then place
the wire on the right side of the
frame as shown above.
Step 7:
Slide the unit into the cabinet and
install the Front panel to unit.
Step 8:
Measure the
inner width of
the side curtain.
Step 9:
Cut the R1 fitting
according to the
measured width.
Step 10:
Slide the R1 insulation panel into
the side curtain.
4
Slide AC into the Cabinet and Install Front panel.
Lift air conditioner and carefully slide into
cabinet leaving 6 inches protruding.
DO NOT push on controls or finned coils.
Be sure chassis is firmly seated towards rear
of cabinet. Installation of front is the reverse
of removal outlined in Section 1.
Install Chassis into
Cabinet and Install Front
panel to Unit.
5
INSTALL R1 HARDWARE (only applicable
to Energy star models )
ＲＩＧＨＴ
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or
1 2 3 4 5 6 789 10 11 12 13 14 15
12 3 4 56
In order to minimize air leaks and ensure optimal
insulation, it is necessary to install the included R1
hardware to the side curtain. Follow the
instructions below.
After the unit is installed to the window, measure
the inner width of the side curtain.
Cut the R1 fitting according to the measured
width, and the width is measured in units of
every 1/8 "(3mm). Slide the R1 insulation panel
into the side curtain, the side with pattern
should facing the indoor. Finally, Repeat on
the other side.