Mars Comfort-Aire RG Series User manual

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Owner’s Manual
RG/RADS Series
Window Type Room Air Conditioner
RG-51Q
RADS-51Q
RADS-61Q
RADS-81Q
RADS-101Q
RADS-121Q
RADS-151Q
RADS-183Q
RADS-253Q
RADS-283Q
RADS-61R
RADS-81R
RADS-101R
RADS-121R
RADS-151R
RADS-183S
RADS-253S
RAD-283S
REG-183R
REG-253R

Owner’s Manual - RG/RADS Series
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Table of Contents
Important Safety Instructions ...................................................03
Installation Instructions..............................................................12
Normal Sounds............................................................................26
Air Conditioner Features............................................................27
Care and Cleaning.......................................................................32
Troubleshooting Tips..................................................................33

Owner’s Manual - RG/RADS Series
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IMPORTANT SAFETY INSTRUCTIONS
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.
This symbol indicates the possibility of death or serious injury.
Always do this.
Never do this.
CAUTION
This symbol indicates the possibility of injury or damage to property.
WARNING
WARNING
Plug in power plug
properly.
Do not modify power cord length or share the
outlet with other appliances.
Always ensure effective
grounding.
Unplug the unit if strange
sounds, smell, or smoke
comes from it.
Keep firearms away.
Ventilate room before operating air conditioner if there is
a gas leakage from another appliance.
Otherwise, it may cause electric
shock or fire due to excess heat
generation.
It may cause electric shock or fire due to heat generation.
Incorrect grounding may cause
electric shock.
It may cause fire and electric
shock.
It may cause fire.
It may cause explosion, fire and, burns.
It may cause electric shock or fire
due to heat generation.
It may cause electric shock.
It may cause failure of machine
or electric shock.
It may cause fire and electric
shock.
It may cause fire and electric
shock.
It may cause electric shock or fire.
If the power cord is damaged, it must be replaced by
the manufacturer or an authori••ed service cent• ••• or a
similarly qualified person in order to avoid a hazard.
This could damage your health.
Incorrect installation may cause
fire and electric shock.
It may cause electric shock.
It may cause an explosion or fire.
It may cause failure and electric shock.
Do not operate or stop the
unit by inserting or pulling
out the power plug.
Do not operate with wet
hands or in damp
environment.
Do not allow water to run
into electric parts.
Do not use the socket if it is
loose or damaged.
Do not use the power cord
close to heating appliances.
Do not damage or use an unspecified power
cord.
Do not direct airflow at room occupants.
Always install • •••circuit
breaker and a dedicated••
power circuit.
Do not open the unit during operation.
Do not use the power cord near flammable gas
or combustibles, such as gasoline, benzene,
thinner, etc.
Do not disassemble or modify unit.
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READ THIS MANUAL
manufacturer or an authorized service center or a similarly
qualied person in order to avoid hazard.
Always install a circuit
breaker and a dedicated
power circuit.

Owner’s Manual - RG/RADS Series
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When the air filter is to be
removed, do not touch the metal
parts of the unit.
It may cause an injury.
Do not clean unit when power is on
as it may c ause fi re an d el ectric sh ock,
it may cause an injury.
Operation with windows opened
may cause wetting of indoor and
soaking of household furniture.
When the unit is to be cleaned,
switch off, and turn off the circuit
breaker.
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. It may
cause an electric shock.
This could injure the pet or plant.
It may cause electric shock and
damage.
Do not put a pet or house plant
where it will be exposed to direct
air flow.
Ventilate the room well when
used together with a stove, etc.
An oxygen shortage may occur.
Do not use this air conditioner to
preserve precision devices, food,
pets, plants, and art objects.It may
cause deterioration of quality, etc.
It may cause failure of product or
fire.
Do not use for special purposes.
If water enters the unit, turn the unit off at the power
outlet and switch off the circuit breaker. Isolate
supply by taking the power-plug out and contact a
qualified service technician.
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It may cause failure of appliance
or accident.
Appearance may be deteriorated
due to change of product color or
scratching of its surface.
If bracket is damaged, there is
concern of damage due to falling
of unit.
There is danger of fire or electric
shock.
Operation without filters may••
cause failure.
It contains contaminants and
could make you sick.
Stop operation and close the
window in storm or hurricane.
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Do not use strong detergent
such as wax or thinner but use
a soft cloth.
Ensure that the installation bracket of the
outdoor appliance is not damaged due
to prolonged exposure.
Hold the plug by the head of the
power plug when taking it out.
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Turn off the main power
switch when not using the
unit for a long time.
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Always insert the filters securely.
Clean filter once every t wo w eeks.
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Do not place heavy object on the power
cord and ensure that the cord is not
compressed.
Do not drink water drained
from air conditioner.
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••• • • • •• • • • •••••••••••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 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.
CAUTION
CAUTION
Do not place obstacles around
air-inlets or inside of air-outlet.
The appliance shall be installed in accordance
with national wiring regulations.
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 •• •• • •••••••s pace••to the••••co mbustible••materials.••
Contact••the authori••ed service technician for••
repair or maintenance of this unit.
Contact the authori••ed installer for installation••of
this unit.
IMPORTANT SAFETY INSTRUCTIONS
knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a
person responsible for their safety.
The appliance with electric heater shall have at least
3 feet space to the combustible materials.
Contact an authorized service technician for repair or
maintenance of this unit.
Contact the authorized installer for installation of this
unit.

Owner’s Manual - RG/RADS Series
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The power supply cord with this air
conditioner contains a current detection
device designed to reduce the risk of
re. Please refer to the section Operation
of Current Device for details. In the
event that the power supply cord is
damaged, it cannot be repaired- it must
be replaced with a cord from the Product
Manufacturer.
Prevent Accidents
To reduce the risk of re, 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
cabinet and behind the grille.
• If the air conditioner is to be installed in a window, you will probably want to clean
both sides of the glass rst. If the window is a triple-track type with a screen panel
included, remove the screen completely before installation.
• 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 when
removing or installing this unit.
• When handling the air conditioner, be careful to avoid cuts from sharp metal ns on
front and rear coils.
IMPORTANT SAFETY INSTRUCTIONS
WARNING
WARNING
WARNING
NOTE
NOTE
Operation of Current Device
(Applicable to the unit with current detection
device only)
WARNING
For Your Safety
Do not store or use gasoline or other ammable vapors and liquids in the vicinity
of this or any other appliance.
Avoid re hazard or electric shock. Do not use
an extension cord or an adapter plug. Do not
remove any prong from the power cord.
Grounding type wall
receptacle
Electrical Information
The complete electrical 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 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.
• Do not run air conditioner without the 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.
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 not supplying electricity
to the unit. (On some products this it also indicated
by a light on the plug head.)
• Do not use this device to turn the unit on or o󰀨.
• Always make sure the RESET button is pushed in for current
operation.
• The power supply must be replaced if it fails reset when either
the TEST button is pushed, of it cannot be reset. A new one
can be obtained from the product manufacturer.
• If power supply cord is damaged, it cannot be repaired.
It MUST be replaced by one obtained from the product
manufacturer.
NOTE: This air conditioner is designed to be operated under
conditions as follows:
Cooling
Operation
Outdoor temp:
64-109°F/18-43°C
(64-125°F/18-52°C for special
tropical models)
Indoor temp: 62-90°F/17-32°C
Heating
Operation
Outdoor temp: 23-76°F/-5-24°C
Indoor temp: 32-80°F/0-27°C
Note: Performance may be reduced outside of these
operating temperatures.

Owner’s Manual - RG/RADS Series
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IMPORTANT SAFETY INSTRUCTIONS
-Do not use means to accelerate the de frosting process or t o cl ean, o t her than those
recommended by the manufacturer.
-The appliance sh all b e st ored i n a ro om w ithout continuously op erating i gnition
sources (for ex ample: o pen flames, an op erating g as ap pliance) a nd ig nition s ources••or
(for example:an op erating electric he ater) cl ose to th e appliance.
-Do not pierce or bu rn.
-Be aware th at the re frigerants may n ot co ntain an od or.
-Compliance with n ational gas regulations sh all b e ob served.
-Keep ventilation op enings c lear of obstruction.
-The appliance sh all b e st ored s o as to p revent mechanical damage fr om o ccurring.
-••he appliance sh all b e st ored i n a well-ventilated ar ea w here t he ro om
size corresponds to the ro om area as specified fo r operation.
-Any person who is i nvolved with working on o r br eaking into a re frigerant c ircuit sh ould
hold a current va lid c ertificate fr om an industry-accredited assessment au thority, which
authori••es their competence to ha ndle refrigerants sa fely in accordance with an
industry recogni••ed as sessment s pecification.
-Servicing shall on ly b e performed as re commended by the eq uipment m anufacturer.
Maintenance and re pair r equiring th e a ssistance of o ther sk illed personnel shall b e
carried out un der t he su pervision of the p erson co mpetent i n the use of flammable r e
frigerants.
-DO NOT m odify the le ngth of the po wer c ord or use a n extension cord to p ower the unit.
DO NOT s h are a single ou tlet w ith other el ectrical appliances. I mproper power su pply
can cause fire or electrical shock.
-Please follow th e i nstruction ca refully to handle, i nstall, cl ear, s ervice th e a ir
conditioner to avoid any damage or ha zard. F lammable Refrigerant R 32 is u sed within
air conditioner. When maintaining or disposing th e a ir conditioner, th e refrigerant (R 32
or R290) shall be r ecovered pr operly, sh all n ot di scharge t o air directly.
-No open fire or device which may ge nerate s park/arcing sh all b e
around air conditioner to avoid causing ig nition o f th e flammable re frigerant u sed.
Please follow th e i nstruction•• ca refully to store or maintain th e a ir co nditioner to prevent••
mechanical damage fr om occurring.
-Flammable refrigerant -R 32 is us ed in •• •• ••••••air conditioner. Please fo llow t h e instruction••
carefully to av oid any hazard.
WARNING: (for using R290/R32 refrigerant only)
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.
AVERTISSEMENT
Ne pas utiliser de produits permettant d acc l rer le d gel ou de produits de nettoyage
autres que ceux recommand s par le fabricant.
L appareil doit tre entrepos dans un endroit sans source d allumage fonctionnant
en continu (par exemple : flamme nue, appareil au gaz en marche ou radiateur lectrique
en marche).
Ne pas percer ni bruler.
Attention : les frigorig nes peuvent tre inodores.
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• Do not use means to accelerate the defrosting process or to clean, other than those reccommended
by the manufacturer.
• The appliance shall be stored in a room without continuously operating ignition sources (for example:
open ames, an operating gas appliance) and ignition source or (for example: an operating electric
heater) close to the appliance.
• Do not pierce or burn.
• Be aware that the refrigerants may not contain an odor.
• Compliance with national gas regulations shall be observed.
• Keep ventilation openings clear of obstruction.
• The appliance shall be stored so as to prevent mechanical damage from occurring. The appliance
shall be stored in a well-ventilated area where the room size corresponds to the room area as
specied for operation.
• Any person who is involved with working on or breaking into a refrigerant circuit should hold a current
valid certicate from an industry-accredited assessment authority, which authorizes their competence
to handle refrigerants safely in accordance with an industry recognized assessment specication.
• Servicing shall only be performed as recommended by the equipment manufacturer. Maintenence and
repair requiring the assistance of other skilled personnel shall be carried out under the supervision of
the person competent in the use of ammable refrigerants.
• DO NOT modify the length of the power cord or use an extension cord to power the unit. DO NOT
share a single outlet with other electrical appliances. Improper power supply can cause re or
electrical shock.
• Please follow the instruction carefully to handle, install, clear, service the air conditioner to avoid any
damage or hazard. Flammable Refrigerant R32 is used within air conditioner. When maintaining or
disposing the air conditioner, the refrigerant (R32 or R290) shall be recovered properly, shall not
discharge to air directly. No open re or device which may generate spark/arcing shall be around air
conditioner to avoid causing ignition of the ammable refrigerant used. Please follow the instructions
carefully to store or maintain the air conditioner to prevent mechanical damage from occurring.
• Flammable refrigerant -R32 is used in this air conditioner. Please follow the instructions carefully to
avoid any hazard.

Owner’s Manual - RG/RADS Series
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Explanation of symbols displayed on the unit (R32/R290 Refrigerant only):
1) Checks to the area
Prior to beginning work on systems containing ammable refrigerants, safety checks are necessary to
ensure that the risk of ignition is minimized. For repair to the refrigerating system, the following precau-
tions shall be complied with prior to conducting work on the system.
2) Work procedure
Work shall be undertaken under a controlled procedure so as to minimize the risk of a ammable gas or
vapor being present while the work is being performed.
3) General work area
All maintenence sta󰀨 and others working in the local area shall be instructed on the nature of work
being carried out. Work in conned spaces shall be avoided. The area around the workspace shall be
sectioned o󰀨. Ensure that the conditions within the area have been made safe by control of ammable
material.
4) Checking for presence of refrigerant
The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure
the technician is aware of potentially ammable atmospheres. Ensure that the leak detection equipment
being used is suitable for use with ammable refrigerants, i.e. non-sparking, adequately sealed or
intrinsically safe.
5)Presence of re extinguisher
If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate re
extinguishing equipment shall be available at hand. Have a dry powder or CO2 re extinguisher adjacent
to the charging area.
6) No ignition sources
No person carrying out work to a refrigeration system which involves exposing any
IMPORTANT SAFETY INSTRUCTIONS
WARNINGS (for using R290/R32 refrigerant only)
1. Transport of equipment containing ammable refrigerants
See transport regulations
2. Marking of equipment using signs
See local regulations
3. Disposal of equipment using ammable refrigerants
See national regulations.
4. Storage of equipment/appliances
The storage of equipment should be in accordinance with the manufacturer’s instructions.
5. Storage of packed (unsold) equipment
Storage package protection should be constructed such that mechanical damage to the equipment
inside the package will not cause a leak of the refrigerant charge.
The maximum number of pieces of equipment permitted to be stored together will be determined by
local regulations.
6. Information on servicing
This symbol shows that this appliance uses a ammable refrigerant. If the refrigerant is
leaked and exposed to an external ignition source, there is a risk of re.
This symbol shows that the operation manual should be read carefully.
This symbol shows that service personnel should handle this equipment with reference to
the installation manual.
This symbol shows that information is available such as the operating manual or
installation manual.

Owner’s Manual - RG/RADS Series
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6
IMPORTANT SAFETY INSTRUCTIONS
pipe work that contains or has contained flammable refrigerant shall use any sources of ignition
in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources,
including cigarette smoking, should be kept sufficiently far away from the site of installation,
repairing, removing and disposal, during which flammable refrigerant can possibly be released
to the surrounding space. Prior to work taking place, the area around the equipment is to be
surveyed to make sure that there are no flammable hazards or ignition risks. No Smoking
signs shall be displayed.
7)Ventilated area
Ensure that the area is in the open or that it is adequately ventilated before breaking into the
system or conducting any hot work. A degree of ventilation shall continue during the period that
the work is carried out. The ventilation should safely disperse any released refrigerant and
preferably expel it externally into the atmosphere.
8)Checks to the refrigeration equipment
Where electrical components are being changed, they shall be fit for the purpose and to the
correct specification. At all times the manufacturer's maintenance and service guidelines shall
be followed. If in doubt consult the manufacturer's technical department for assistance.
The following checks shall be applied to installations using flammable refrigerants:
The charge size is in accordance with the room size within which the refrigerant containing
parts are installed;
The ventilation machinery and outlets are operating adequately and are not obstructed;
If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the
presence of refrigerant;
Marking to the equipment continues to be visible and legible. Markings and signs that are
illegible shall be corrected;
Refrigeration pipe or components are installed in a position where they are unlikely to be
exposed to any substance which may corrode refrigerant containing components, unless the
components are constructed of materials which are inherently resistant to being corroded or
are suitably protected against being so corroded.
9)Checks to electrical devices
Repair and maintenance to electrical components shall include initial safety checks and
component inspection procedures. If a fault exists that could compromise safety, then no
electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault
cannot be corrected immediately but it is necessary to continue operation, an adequate
temporary solution shall be used. This shall be reported to the owner of the equipment so all
parties are advised.
Initial safety checks shall include:
That capacitors are discharged: this shall be done in a safe manner to avoid possibility of
sparking;
That there no live electrical components and wiring are exposed while charging, recovering
or purging the system;
That there is continuity of earth bonding.
7.Repairs to sealed components
• •••During repairs to sealed components, all electrical supplies shall be disconnected from the
equipment being worked upon prior to any removal of sealed covers, etc. If it is••absolutely
necessary to have an electrical supply to equipment during servicing, then a permanently
operating form of leak detection shall be located at the most critical point to warn of a
potentially hazardous situation.
• •••Particular attention shall be paid to the following to ensure that by working on electrical
components, the casing is not altered in such a way that the level of protection is affected.
1) During repairs to sealed components, all electrical supplies shall be disconnected from the
equipment being worked upon to prior to any removal of sealed covers, etc. If it is absolutely
necessary to have an electrical supply to equipment during servicing, then a permanently
operating form of leak protection shall be located at the most critical point to warn of a poten-
tially hazardous situation.
2) Particular attention shall be paid to the following to ensure that by working on electrical
components, the casing is not altered in such a way that the level of protection is a󰀨ected.

Owner’s Manual - RG/RADS Series
9
IMPORTANT SAFETY INSTRUCTIONS
This shall include damage to cables, excessive number of connections, terminals not made
to original specification, damage to seals, incorrect fitting
of glands, etc.
Ensure that apparatus is mounted securely.
Ensure that seals or sealing materials have not degraded such that they no longer serve the
purpose of
preventing the ingress of flammable atmospheres. Replacement parts shall be in accordance
with the manufacturer's specifications.
NOTE: The use of silicon sealant may inhibit the effectiveness of some types of leak detection
equipment. Intrinsically safe components do not have to be isolated prior to working on them.
8.Repair to intrinsically safe components
Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that
this will not exceed the permissible voltage and current permitted for the equipment in use.
Intrinsically safe components are the only types that can be worked on while live in the
presence of a flammable atmosphere. The test apparatus shall be at the correct rating.
Replace components only with parts specified by the manufacturer. Other parts may result in
the ignition of refrigerant in the atmosphere from a leak.
9.Cabling
Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp
edges or any other adverse environmental effects. The check shall also take into account the
effects of aging or continual vibration from sources such as compressors or fans.
10.Detection of flammable refrigerants
Under no circumstances shall potential sources of ignition be used in the searching for or
detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall
not be used.
11.Leak detection methods
The following leak detection methods are deemed acceptable for systems containing flammable
refrigerants. Electronic leak detectors shall be used to detect flammable refrigerants, but the
sensitivity may not be adequate, or may need re-calibration. (Detection equipment shall be
calibrated in a refrigerant-free area.) Ensure that the detector is not a potential source of ignition
and is suitable for the refrigerant used. Leak detection equipment shall be set at a percentage of
the LFL of the refrigerant and shall be calibrated to the refrigerant employed and the appropriate
percentage of gas (25 % maximum) is confirmed. Leak detection fluids are suitable for use with
most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine
may react with the refrigerant and corrode the copper pipe-work. If a leak is suspected, all
naked flames shall be removed/ extinguished. If a leakage of refrigerant is found which requires
brazing, all of the refrigerant shall be recovered from the system, or isolated (by means of shut
off valves) in a part of the system remote from the leak. Oxygen free nitrogen (OFN) shall then
be purged through the system both before and during the brazing process.
12.Removal and evacuation
When breaking into the refrigerant circuit to make repairs or for any other purpose conventional
procedures shall be used. However, it is important that best practice is followed since
flammability is a consideration. Opening of the refrigeration systems shall not be done by brazing.
The following procedure shall be adhered to:
Remove refrigerant;
Purge the circuit with inert gas;
Evacuate;
Purge again with inert gas;
Open the circuit by cutting or brazing.
,

Owner’s Manual - RG/RADS Series
10
13. Charging procedures
In addition to conventional charging procedures, the following requirements shall be followed.
Ensure that contamination of di󰀨erent refrigerants does not occur when using charging
equipment. Hoses or lines shall be as short as possible to minimize the amount of refrigerant
contained in them.
Cylinders shall be kept upright.
Ensure that the refrigeration system is grounded prior to charging the system with refrigerant.
Label the sustem when charging is complete (if not already).
Extreme care shall be taken not to overll the refrigeration system.
Prior to recharging the system it shall be pressure tested with OFN. The system shall be
leak tested on completion of charging but prior to comissioning. A follow up leak test shall be
carried out prior to leaving the site.
14. Decomissioning
Before carrying out this procedure, it is essential that the technician is completely familiar
with the equipment and all its detail. It is reccommended good practice that all refrigerants
are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be
taken in case analysis is required prior to re-use of reclaimed refrigerant. It is essential that
electrical power is available before the task is commenced.
IMPORTANT SAFETY INSTRUCTIONS
The refrigerant charge shall be recovered into the correct recovery cylinders. The system shall
be ushed with OFN to render the unit safe. This process may need to be repeated several
times. Compressed air or oxygen shall not be used for this task.
Flushing shall be achieved by breaking the vacuum in the system with OFN and continuing to
ll until the working pressure is achieved, then venting to atmosphere, and nally pulling down
to a vacuum. This process shall be repeated until no refrigerant is within the system. When the
nal OFN charge is used, the system shall be vented down to atmospheric pressure to enable
work to take place. This operation is absolutely vital if brazing operations on the pipe-work are
to take place.
Ensure that the outlet for the vacuum pump is not close to any ignition sources and there is
ventilation available.
a) Become familiar with the equipment and its operation.
b) Isolate system electrically
c) Before attempting the procedure, ensure that:
Mechanical handling equipment is available, if required, for handling refrigerant cylinders; All
personal protective equipment is available and being used correctly;
The recovery process is supervised at all times by a competent person;
Recovery equipment and cylinders conform to the appropriate standards.
d) Pump down refrigerant system, if possible.
e) If a vacuum is not possible, make a manifold so that refrigerant can be removed from
various parts of the system.
f) Make sure that cylinder is situated on the scales before recovery takes place.
g) Start the recovery machine and operate in accordance with manufacturer’s instructions.
h) Do not overll cylinders. (No more than 80% volume liquid charge).
i) Do not exceed the maximum working pressure of the cylinder, even temporarily.
j) When the cylinders have been lled correctly and the process completed, make sure that the
cylinders and

Owner’s Manual - RG/RADS Series
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9
IMPORTANT SAFETY INSTRUCTIONS
the equipment are removed from site promptly and all isolation valves on the equipment are
closed off.
k) Recovered refrigerant shall not be charged into another refrigeration system unless it has
been cleaned and checked.
15.Labelling
Equipment shall be labelled stating that it has been de-commissioned and emptied of
refrigerant. The label shall be dated and signed. Ensure that there are labels on the equipment
stating the equipment contains flammable refrigerant.
16.Recovery
When removing refrigerant from a system, either for servicing or decommissioning, it is
recommended good practice that all refrigerants are removed safely.
When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery
cylinders are employed. Ensure that the correct number of cylinders for holding the total system
charge is available. All cylinders to be used are designated for the recovered refrigerant and
labelled for that refrigerant (i.e. special cylinders for the recovery of refrigerant). Cylinders shall
be complete with pressure relief valve and associated shut-off valves in good working order.
Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs.
The recovery equipment shall be in good working order with a set of instructions concerning
the equipment that is at hand and shall be suitable for the recovery of flammable refrigerants.
In addition, a set of calibrated weighing scales shall be available and in good working order.
Hoses shall be complete with leak-free disconnect couplings and in good condition. Before
using the recovery machine, check that it is in satisfactory working order, has been properly
maintained and that any associated electrical components are sealed to prevent ignition in the
event of a refrigerant release. Consult manufacturer if in doubt.
The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery
cylinder, and the relevant Waste Transfer Note arranged. Do not mix refrigerants in recovery
units and especially not in cylinders. If compressors or compressor oils are to be removed,
ensure that they have been evacuated to an acceptable level to make certain that flammable
refrigerant does not remain within the lubricant. The evacuation process shall be carried out
prior to returning the compressor to the suppliers. Only electric heating to the compressor
body shall be employed to accelerate this process. When oil is drained from a system, it shall
be carried out safely.

Owner’s Manual - RG/RADS Series
12
Installation Instructions
Installation
Instructions
NOTE:
NOTE: The unit you purchased may be look like one of the followings:
All the illustrations in this manual are for explanation purpose only. The air conditioner
you have may be slightly dierent. The actual shape shall prevail.

Owner’s Manual - RG/RADS Series
13
Installation Instructions
(for 5000 to 12000Btu/h)
Installation
Instructions
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.
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 qualied
electircian.When handling unit, be careful
to avoid cuts from sharp metal edges and
aluminum ns on front and rear coils.
BEFORE YOU BEGIN
Read these instructions completely and
carefully.
MPORTANT-Save these instructions for
local inspector’s use.
IMPORTANT-Observe all governing codes
and ordianaces.
Note to Installer- Be sure to leave these
instructions with the Consumer.
Note to Consumer- Keep these
instructions for futrue reference.
Skill level- Installatio 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.
TOOLS YOU WILL NEED
TOOLS YOU MAY USE
H
WINDOW REQUIREMENTS
Your air conditioner is designed to install
in standard double hung windows with
opening widths of 23 to 36 inches
(584mm to 914mm).
Screwdriver
Level
Screwdriver
Pencil
Ruler or tape
measure
Scissors or knife
Model
H
6000~8000Btu/h
10000~12000Btu/h
14 (356mm)
15-1/2 (394mm)
Table 1
5000~6000Btu/h
13 (330mm)
H

Owner’s Manual - RG/RADS Series
14
Installation
Instructions
3/ 4 (or 1/
Screws
(7)
2 )
Lock Frame
(2)
Sash Lock
(1)
Window sash
seal foam
(1)
Lock Frame
(2)
(For Wooden
windows)
(For Vinyl-Clad
windows)
(on some models)
Lower sash must open suciently to allow a clear
vertical opening of 13 inches (330mm). Side
louvers and the rear of the AC must have clear air
space to allow enough airow through the
condenser, for heat removal. The rear of the unit
must be outdoors, not inside a building or garage.
PREPARE THE WINDOW
1
Mounting Hardware
A: Remove the air conditioner from the carton
and place on a at surface.
B: Remove top rail and R1 hardware and weather
stripping from the packaging material as shown
in Fig. A(R1 hardware and weather stripping are
only available for≥15000Btu / h Energy star
models).
Packaging Top Rail R1 hardware
R1 hardware
Top Rail Hardware
3/8 Screws
4)
Top Rail
1)
R1 hardware
2)
(10 *3/4 *1/12 )
Weather stripping
5)
PREPARE AIR CONDITIONER
2
3INSTALL THE ACCORDION PANELS
NOTE: The top rail hardware and the Fig.A,
Fig.B and Fig.C are not applicable to the units
more than 10000Btu/h.Before installing unit,
the top rail must be assembled on the unit
(For <10000Btu/h models only).
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
Fig.A
Fig.C
Fig.B
NOTE: For safety reasons, all four(4) screws
MUST be securely fastened.
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.
A.Place unit on oor, 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

Owner’s Manual - RG/RADS Series
15
Installation
Instructions
"Ⅰ"section
Top Rail
Bottom Rail
Top Rail
Bottom Rail
Top left
Top right
Fig.2
Fig.3
Fig.4
NOTE: If storm window blocks AC, see Fig. 11.
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.
D. Slide the panel all the way in and repeat on
the other side.
Wooden Windows
INSIDE
OUTSIDE
H:About 3/4 to 1 （for 5 to 8K);
Measure from the cabinet edge
3
H:About 1 to 1 / （for 10 to12K);
8
H
Vinyl-Clad Windows
INSIDE
OUTSIDE
H:About 3/4 to 1 （for 5 to 8K);
Measure from the cabinet edge
3
H:About 1 to 1 / （for 10 to12K);
8
H
INSTALL SUPPORT BRACKET
5
SECURE THE ACCORDION PANELS
NOTE: Check that air conditioner is tilted
back about H (Fig.5A and Fig.5B) (tilted
about 3°to 4°downward to the outside).
After proper installation, condensate
should not drain from the overow drain
hole during normalu se,correct the slope
otherwise.
Fig.5A
Fig.5B
Fig.6
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.5A and
Fig.5B). Carefully close the window behind the
top rail of the unit.
B. Extend the side panels out against the window
frame(Fig.6).
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) .
window
frame
4

Owner’s Manual - RG/RADS Series
16
Installation
Instructions
Measure the inner width
of the side curtain
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
1 2 3 4 5 6
Fig.7A Fig.7B
Fig.8A Fig.8B
Fig.9
Fig.10
A: For wooden windows:
Drive 1/ 2" (12.7 mm) locking screws through the
frame lock and into the sill (Fig.8A).
NOTE: To prevent window sill from splitting, drill
1/8 " (3mm) pilot holes before driving screws.
Drive 1/ 2" (12.7mm) locking screws through
frame holes into window sash (Fig.8B).
B: For Vinyl-Clad windows:
Drive 1/ 2" (12.7 mm) locking screws through
the frame lock and into the window sashl (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).
C. To secure lower sash in place, attach right angle
sash lock with 3/4" (19mm) or 1/2" (12.7mm)
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).
DRIVE LOCKING SCREWS
6
FOAM SEAL
Fig.11
Fig.12
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.
Step 1. After the unit is installed to the window,
measure the inner width of the side curtain as
shown (Fig.11).
Step 2. Remark a line on the provide R1 insulation
panel according to a length 1/8 “ (3mm) less than
the measured width in step 1, then cut the R1
insulation panel along the line (Fig .12).
INSTALL R1 HARDWARE (only
applicable to ≥15000Btu/h Energy
star models )
7
or

Owner’s Manual - RG/RADS Series
17
Installation
Instructions
Measure the inner width
of the side curtain
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
1 2 3 4 5 6
Fig.7A Fig.7B
Fig.8A Fig.8B
Fig.9
Fig.10
A: For wooden windows:
Drive 1/ 2" (12.7 mm) locking screws through the
frame lock and into the sill (Fig.8A).
NOTE: To prevent window sill from splitting, drill
1/8 " (3mm) pilot holes before driving screws.
Drive 1/ 2" (12.7mm) locking screws through
frame holes into window sash (Fig.8B).
B: For Vinyl-Clad windows:
Drive 1/ 2" (12.7 mm) locking screws through
the frame lock and into the window sashl (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).
C. To secure lower sash in place, attach right angle
sash lock with 3/4" (19mm) or 1/2" (12.7mm)
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).
DRIVE LOCKING SCREWS
6
FOAM SEAL
Fig.11
Fig.12
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.
Step 1. After the unit is installed to the window,
measure the inner width of the side curtain as
shown (Fig.11).
Step 2. Remark a line on the provide R1 insulation
panel according to a length 1/8 “ (3mm) less than
the measured width in step 1, then cut the R1
insulation panel along the line (Fig .12).
INSTALL R1 HARDWARE (only
applicable to ≥15000Btu/h Energy
star models )
7
or
Installation
Instructions
8INSTALL WEATHER STRIPPING
(only be applicable to Energy star
models )
Fig.13
Fig.14
Step 3. Slide the R1 insulation panel into the side
curtain, the side with pattern should facing the
indoor side.(Fig.13)
Step 4. Repeat on the other side.
In order to minimize air leaks between the room
air conditoner and the window opening, trim the
weather stripping with a proper length, peel o
the protective backing and plug any gaps if
needed (Fig .14).
Board
thickness
as required,
for proper
pitch to rear,
along entire
sill. Fasten
with nails or
screws.
Storm window
frame or other
obstruction.
SASH
1-1/2"min
(38 mm)
If AC is Blocked by Storm Window
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.
Removing AC From Window
Turn AC o, and disconnect power cord.
Remove sash seal from between windows, and
unscrew safety sash lock.
Remove screws installed through frame and
frame- lock.
Remove the R1 Panel and close (slide) side panels
into frame.
Keeping a rm grip on air conditioner, raise sash
and carefully remove.
Be carefully not to spill any remaining water while
lifting unit from window. Store parts WITH air
conditioner.

Owner’s Manual - RG/RADS Series
18
Installation Instructions
(for 15000 to 28500Btu/h)
Installation
Instructions
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 qualied
electircian.When handling unit, be careful
to avoid cuts from sharp metal edges and
aluminum ns on front and rear coils.
BEFORE YOU BEGIN
Read these instructions completely and
carefully.
IMPORTANT-Save these instructions for
local inspector ’ s use.
IMPORTANT-Observe all governing codes
and ordianaces.
Note to Installer- Be sure to leave these
instructions with the Consumer.
Note to Consumer- Keep these
instructions for futrue 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.
P roduct 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.
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.
Do the following before starting to install unit.
See illustrations below.
Check dimensions of your unit to determine
model type:
Unit Height: 18 5/8 " 17 5/8 ''
Unit Width: 26 " 23 "
Min. Window Opening: 19 " 18 "
Min. Window Width: 31" 28"
Max. Window Width: 42" 40 "
1 .Check window opening size-- the
mounting parts furnished with this air conditioner
are made to install in a wooden sill double-hung
window. The standard parts are for window
dimensions listed above. Open sash to a
minimum of 19 inches(483mm). See Fig.D.
2.Check condition of window-- all wood parts
of window must be in good shape and able to
rmly hold the needed screws. If not, make
repairs before installing unit.
12
/
12
/12
/
12
/
58
/
SASH
.
19 MIN.
indow Frame or
bstruction Storm Window
Frame or Other
Obstruction
Board
Thickness
As Required,
Along Entire
Sill. Fasten
With Two Nails
Or Screws.
/2 MIN.
1/2 MIN.
1
19 MIN.
SASH
Window Sash Seal
Safety Lock and
3 /4 (or1/2 ) Long
Hex Head Screw
Top Angle
Foam Gasket
Washer Head
Locking screw
Frame
Assembly
(Left)
Side Retainer
Bottom rail
seal to Unit 1 /2 Long
Screw and
Locknuts
Locknut
3 /4 Long
Flat Head
Bolt Sill Angle
Bracket
Window Support
Bracket
Frame
Assembly
(Right)
Preliminary Instructions
Fig.D Fig.E

Owner’s Manual - RG/RADS Series
19
Installation Instructions
(for 15000 to 28500Btu/h)
Installation
Instructions
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 qualied
electircian.When handling unit, be careful
to avoid cuts from sharp metal edges and
aluminum ns on front and rear coils.
BEFORE YOU BEGIN
Read these instructions completely and
carefully.
IMPORTANT-Save these instructions for
local inspector ’ s use.
IMPORTANT-Observe all governing codes
and ordianaces.
Note to Installer- Be sure to leave these
instructions with the Consumer.
Note to Consumer- Keep these
instructions for futrue 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.
P roduct 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.
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.
Do the following before starting to install unit.
See illustrations below.
Check dimensions of your unit to determine
model type:
Unit Height: 18 5/8 " 17 5/8 ''
Unit Width: 26 " 23 "
Min. Window Opening: 19 " 18 "
Min. Window Width: 31" 28"
Max. Window Width: 42" 40 "
1 .Check window opening size-- the
mounting parts furnished with this air conditioner
are made to install in a wooden sill double-hung
window. The standard parts are for window
dimensions listed above. Open sash to a
minimum of 19 inches(483mm). See Fig.D.
2.Check condition of window-- all wood parts
of window must be in good shape and able to
rmly hold the needed screws. If not, make
repairs before installing unit.
12
/
12
/12
/
12
/
58
/
SASH
.
19 MIN.
indow Frame or
bstruction Storm Window
Frame or Other
Obstruction
Board
Thickness
As Required,
Along Entire
Sill. Fasten
With Two Nails
Or Screws.
/2 MIN.
1/2 MIN.
1
19 MIN.
SASH
Window Sash Seal
Safety Lock and
3 /4 (or1/2 ) Long
Hex Head Screw
Top Angle
Foam Gasket
Washer Head
Locking screw
Frame
Assembly
(Left)
Side Retainer
Bottom rail
seal to Unit 1 /2 Long
Screw and
Locknuts
Locknut
3 /4 Long
Flat Head
Bolt Sill Angle
Bracket
Window Support
Bracket
Frame
Assembly
(Right)
Preliminary Instructions
Fig.D Fig.E
Installation
Instructions
Locking screw 10X 1/ 4 panhead
screws (for Vinyl-Clad window)(on some models)
Phillips
7/16 inch Locking screw and
Flat washer for window panels
3 / 4 （or 1/2)inch Long
Hex-head Screw
Safety Lock
1 / 2 inch Long screw and Locknut
3 / 4 inch Long Flat Head
Bolt and Locknut
Sill Angle Bracket
Long hex-head locking
screw for top angle, side
retainer 5 /16 inch Long
2 ea.
7
1
4ea.
2ea.
2
10
Foam insert 2
Window sash
seal foam 1
R1 hardware 2
(10 *3/4 *1/12 )
NOET: R1 hardware and Weather stripping is only
for Energy star models 15000Btu/h models
only .
(for ≥
)
Weather stripping 5
Safety Lock
(for Vinyl-Clad window)(on some models)
2
2
Lock Frame(For Wooden
windows)(on some models)
2
3 / 4 inch Long Screw(on some models)
2
3. Check your storm windows-- if your storm
window frame does not allow the clearance
required, correct by adding a piece of wood
as shown in Fig.E,or by removing storm window
while room air conditioner is being installed.
4 .Check for anything that could block
airflow- check area outside of window for things
such as shrubs, trees, or awnings. Inside, be sure
furniture, drapes, or blinds will not stop proper
airow.
5. Check the available electrical service- Power
supply must be the same as that shown on the
unit serial nameplate. Power cord is 48 inches
long. Be sure you have an outlet near.
6. Carefully unpack air conditioner- Remove all
packing material. Protect oor or carpet from
damage. Two people should be used to move
and install unit.
Tools Required
A large at blade screwdriver; Tape measure;
Adjustable wrench or pliers; Pencil; Level Socket
wrenches; Phillips Screwdriver.
Hardware(Packed with the unit)
1
Front Grille
Front Panel
shipping
screws
Remove Air Conditioner from Cabinet
A. Window Mounting
NOTE: Remove any packaging material from
cabinet exterior.
1. Pull down front grille and remove lter.
(See Fig.1).
2. Lift front grille upwards and place to one side.
3. Locate the four front screws and remove. These
screws will be needed to re-install the front panel
(see Fig.2).
4. Push metal cabinet side to release plastic tabs
on each side of front panel (see Fig.3).
5. Gently lift front panel o unit(see Fig.3A).
6. Disconnect the connector plug of the display
panel from the unit and place front panel to
one side(see Fig.4).
7. Remove shipping screws from top of unit and
also on the side by the base if installed(see Fig.5).
8. Hold the cabinet while pulling on the base
pan handle, and carefully remove the unit.
9. Add two foam inserts to holes in top of
cabinet where shipping screws were
removed from (see Fig .6)
Fig.1 Fig.2
Fig.3
Fig.3A
Fig.4
Fig.5 Fig.6

Owner’s Manual - RG/RADS Series
20
Installation
Instructions
2
3
Plastic
Frame
Window Filler
Panel
Side Retainer
5 16 long
hex-head
/
Shipping Packaging
Plastic tie
Top
View
Air Conditioner
Cabinet Plastic
Frame
"Ⅰ" Section Window
Filler
Panel
Locking
Screw
Hole
Window
inner Sill
Sill
Angle
Window
outer Sill
10. Your unit may come with internal packaging.
This packaging must be removed prior to installing
the air conditioner back into the cabinet.(see Fig .7).
1. Attach foam gasket to top angle above holes as
shown in Fig.6.
2. Install top angle and side retainers to cabinet as
shown in Fig.8(10 screws).
1. Place cabinet on oor, a bench, or a table.
2. Slide "I " section of window ller panel into
side retainer on the side of the cabinet (see Fig.9
& Fig.10).
Do both sides.
3. Insert top and bottom legs of window ller
panel frame into channel in the top angle and
bottom rail. Do both sides.
4. Insert washer head locking 7/16” screws (2) into
holes in top leg of ller panel frame (see step 6). Do
not totally tighten. Allow leg to slide freely. Screws
will be tightened after section 6.
1. Open window and mark center of window inner
sill as shown(Fig.11).
2. Place cabinet in window with bottom sill angle
rmly seated over window sill as shown. Bring
window down temporarily behind top angle to
hold cabinet in place(Fig.12).
3. Shift cabinet left or right as needed to line up
center of cabinet on center line marked on inner
sill.
4. For wooden window: Fasten cabinet to window
inner sill with two screws into holes (Fig.13) (You
may wish to pre-drill pilot holes).
For Vinyl-Clad window: Place two safety locks into
the holes located in the bottom of the cabinet and
drive two #10X1/4" pan-head Phillips locking screws
through the safety locks into the cabinet as shown
(Fig.13B).
5. Remove protective strip from adhesive side of
Bottom Rail Foam Seal.
Apply Seal over screws fastening bottom rail to
window inner sill.
Fig.7
Fig.8
Fig.9
Fig.10
Fig.11 Fig.12
Install top angle and side Bracket
Assemble Window Filler Panels
4Place Cabinet in window