Comfortaire RXTS Series User manual

www.comfort-aire.com
Installation and Operation Manual
RXTS Series
U-Rack Window Type
Room Air Conditioner
RXTS-81A
RXTS-101A
RXTS-121A

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Table of Contents
Important Safety Instructions ...................................................3
Installation Instructions..............................................................13
Normal Sounds............................................................................18
Air Conditioner Features............................................................19
Care and Cleaning.......................................................................24
Troubleshooting Tips..................................................................25

IOM - RXTS Series
3
WARNING
Page 3 
Important Safety
Instructions
Important Safety Instructions
Inside you will nd 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 nd many answers to common
problems in the chart of troubleshooting tips. If you review our chart of Troubleshooting
Tips rst, 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 classied by the following indications.
READ THIS MANUAL
Plug in power plug properly. Otherwise, it may cause electric shock or re 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 center 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.
Always ensure effective grounding. Incorrect grounding may cause electric shock. Do not
allow water to run into electric parts. It may cause failure of machine orelectric 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.
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.
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

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4
CAUTION
Page 4 
Important Safety
Instructions
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 givensu pervision 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.
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 3 feet space to the combustible
materials.
Contact the authorized service technician for repair or maintenance of this unit.
Contact the authorized installer for installation of this unit.
CAUTION
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.
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 off, and turn off the circuit breaker. Do not clean unit when power is on as it
may cause fire and electric shock, it may cause an injury. Ensure that the installation bracket
of the outdoor appliance is not damaged due to prolonged exposure. If bracket is damaged,
there is concern of damage due to falling of unit.
Always insert the filters securely. Clean filter once every two weeks. Operation without filters
may cause failure. Hold the plug by the head of the power plug when taking it out. It may
cause electric shock and damage. Turn off the main power switch when not using the unit for
a long time. It may cause failure of product or fire.
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. Do not 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 off at the poweroutlet and switch off the circuit breaker.
Isolate supply by taking the power-plug out and contact a qualified service technician.

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WARNING
Page 5 
Important Safety
Instructions
Do not, under any
circumstances, cut,
remove, or bypass
the grounding prong.
NOTE:
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.
Avoid re hazard or electric shock. Do not
use an extension cord or an adaptor plug.
Do not remove any prong from the power
cord.
Grounding type wall receptacle
Power supply cord with
3-prong grounding plug
and current detection
device.
WARNING
Do not store or use gasoline or other ammable vapors and liquids in the vicinity of this or any other
appliance.
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 the cabinet and behind the grille.
If the air conditioner is to be istalled 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 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 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.
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 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 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.
For Your Safety
Prevent Accidents
Electrical Information

IOM - RXTS Series
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Page 6 
Important Safety
Instructions
Operation of Current Device
(Applicable to the unit that adopts current detection device only)
Cooling
operation
Outdoor temp:
Indoor temp:
64-109 ℉ /18-43 ℃ (64-125 ℉ /18-52 ℃
for special tropical models)
60-90 ℉ /16-32 ℃
Note: Performance may be reduced
outside of these operating
temperatures.
WARNING：(for using R290/R32 refrigerant only)
-Do not use means to accelerate the defrosting process or to clean, other than those
recommended by the manufacturer.
-The appliance shall be stored in a room without continuously operating ignition sources
(for example: open flames, an operating gas appliance) and ignition sources or (for example:
an operating electric heater) close to the appliance. The appliance shall be stored in a room
without continuously operating ignition sources (for example: open flames, an operating gas
appliance or an operating electric heater).
-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.
-A warning that the appliance shall be stored in a well-ventilated area where the room size
corresponds to the room area as specified for operation.
-Any person who is involved with working on or breaking into a refrigerant circuit should hold
a current valid certificate from an industry-accredited assessment authority, which authorises
their competence to handle refrigerants safely in accordance with an industry recognised
assessment specification.
NOTE:
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 must be replaced if it fails reset when either the TEST button is pushed,
or it cannot be reset. A new one can be obtained from 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 condition as follows:
The power supply cord contains a current device that senses damage to the power cord.
To test your power supply cord do the following:
1.Plug in the Air Conditioner.
2.The power supply cord will have TWO buttons on the plug head. Press the TEST button,
you will notice a click as the RESET button pops out.
3.Press the RESET button, again you will notice a click as the button engages.
4.The power supply cord is now supplying electricity to the unit. (On some products this it
also indicated by a light on the plug head.)

IOM - RXTS Series
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Page 7 
Important Safety
Instructions
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.
-Servicing shall only be performed as recommended by the equipment manufacturer.
Maintenance and repair requiring the assistance of other skilled personnel shall be carried
out under the supervision of the person competent in the use of flammable 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
fire or electrical shock.
-Please follow the instructionscarefully to handle, install, clear and service the air conditioner to
avoid any damage or hazard. Flammable Refrigerant R32 is used within air conditioner. When
maintaining or disposing of the air conditioner, the refrigerant (R32 or R290) shall be recovered
properly, shall not discharge to air directly.
-No open fire or device like switch which may generate spark/arcing shall be around air
conditioner to avoid causing ignition of the flammable refrigerant used.
Please follow the instructionscarefully to store or maintain the air conditioner to prevent
mechanical damage from occurring.
Explanation of symbols displayed on the unit(For the unit adopts R32/R290
Refrigerant only):
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.

IOM - RXTS Series
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Page 8 
Important Safety
Instructions
WARNINGS (for using R290/R32 refrigerant only)
1.Transport of equipment containing flammable refrigerants
See transport regulations
2.Marking of equipment using signs
See local regulations
3.Disposal of equipment using flammable refrigerants
See national regulations.
4.Storage of equipment/appliances
The storage of equipment should be in accordance 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
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 minimised. For repair to the refrigerating
system, the following precautions 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 minimise the risk of a
ammable gas or vapour being present while the work is being performed.
3)General work area
All maintenance 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 to hand. Have a dry powder or
CO2 re extinguisher adjacent to the charging area.
6)No ignition sources
No person carrying out work in relation to a refrigeration system which involves exposing
any pipe work that contains or has contained ammable refrigerant shall use any sources
of ignition in such a manner that it may lead to the risk of re or explosion. All possible
ignition sources, including cigarette smoking, should be kept suciently far away from the
site of installation, repairing, removing and disposal, during which ammable 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 ammable hazards
or ignition risks. No Smoking signs shall be displayed.

IOM - RXTS Series
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WARNINGS (for using R290/R32 refrigerant only)
Page 9 
Important Safety
Instructions
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 t for the purpose and to the
correct specication. 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 ammable 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
1)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 isabsolutely
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.
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.
This shall include damage to cables, excessive number of connections, terminals not made
to original specication, damage to seals, incorrect tting of glands, etc.
Ensure that apparatus is mounted securely.

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WARNINGS (for using R290/R32 refrigerant only)
Page 10
Important Safety
Instructions
Ensure that seals or sealing materials have not degraded such that they no longer serve the
purpose of preventing the ingress of ammable atmospheres. Replacement parts shall be
in accordance with the manufacturer's specications.
NOTE: The use of silicon sealant may inhibit the eectiveness 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 ammable atmosphere. The test apparatus shall be at the correct rating.
Replace components only with parts specied 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 eects. The check shall also take into account the
eects 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 ame)
shall not be used.
11.Leak detection methods
The following leak detection methods are deemed acceptable for systems containing
ammable refrigerants. Electronic leak detectors shall be used to detect ammable
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 conrmed.
Leak detection uids 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 ames 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 o 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 ammability 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;

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Page 11
Important Safety
Instructions
WARNINGS (for using R290/R32 refrigerant only)
Open the circuit by cutting or brazing.
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.
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 minimise the amount of
refrigerant contained in them.
Cylinders shall be kept upright.
Ensure that the refrigeration system is earthed prior to charging the system with refrigerant.
Label the system 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 commissioning. A follow up leak test shall be
carried out prior to leaving the site.
14.Decommissioning
Before carrying out this procedure, it is essential that the technician is completely familiar with
the equipment and all its detail. It is recommended 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.
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.

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Page12 
Important Safety
Instructions
WARNINGS (for using R290/R32 refrigerant only)
j)When the cylinders have been lled correctly and the process completed, make sure that
the cylinders and the equipment are removed from site promptly and all isolation valves on
the equipment are closed o.
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 ammable 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-o
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 ammable 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 ammable
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.

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Page 13
Installation Instructions
Installation
Instructions
NOTE:
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.

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Page 14 
Installation
Instructions
20
508mm to 965mm
38
WINDOW REQUIREMENTS
Your air conditioner is designed to install in
standard double hung windows with opening
widths of 20 to 38 inches(508mm to 965mm).
NOTE:
If there is interference between the shaft
and the window, seal it with a sponge.
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.
TOOLS YOU WILL NEED
TOOLS YOU MAY USE
Screwdriver
Level
Screwdriver
Pencil
Ruler or tape
measure
Scissors or knife
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- Installationof 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.

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Page 15 
Installation
Instructions
retaining plate
horizontal
support plate
leg
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.
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
Hardware(Packed with the unit)
Remove the air conditioner and hardware from
the carton and place on a at surface.
PREPARE AIR CONDITIONER
2
3ASSEMBLE THE SUPPORT BRACKET
A. Connect the retaining plate and support rail
via snaps. And x the horizontal support plate
to the main support connection plate with
screws. See Fig1.
B. Attach Legs: slide leg into support rail while
pressing BOTH spring buttons. Release button
so that it extends out from the inner or outer
hole of support rail. Repeat for second leg.
See Fig.2
Fig.1
Fig.2
Sealed sponge
Self-tapping Screw ST3.9× 6.5
Flat Head Bolt and Locknut
snap ring
2
2
1
2
4
Self-tapping Screw ST3.9× 10 6
support bracket

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Page 16 
Installation
Instructions
Adjust the braket until the sliding leg is firmly
secure against exterior surface.
Place in window: Rest bracket on the bottom
sill. Ajust each sill stop wing until it reaches
the outermost side of the window frame.
Connect the horizontal support plate and the
sill stop wings by bolts. See Fig.4
sill stop wings
A. Place the AC unit on support braket:
Align the window to the grooved part of the
unit. See Fig.5
C. Prepare Sill Stop Wings: slide wings(left and
right) onto frame.See Fig.3
Fig.4A
Fig.4B
Fig.5
Fig.3
INSTALL THE SUPPORT BRACKET
4
INSTALL AC
5

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Page 17 
Installation
Instructions
C. Cut the Sealed sponge to proper
length for sealing the
window and unit. See
space beteen the
Fig.8
D. Close the window.
B. Fasten the AC with L plate. See Fig.7
Fig.7
Fig.8

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Page 18 
Normal Sounds
Normal
Sounds
NOTE:
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.
High Pitched Chatter
High eciency compressors may
have a high pitched chatter during
the cooling cycle.
Pinging or Switching
Droplets of water hitting
condenser during normal
operation may cause
"pinging or swishing" sounds.
Gurgle/Hiss
"Gurgling or hissing" noise
may be heard due to refrigerant
passing through evaporator
during normal operation.
Sound of Rushing Air
At the front of the unit, you
may hear the sound of rushing
air being moved by the fan.

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Air Conditioner Features
Air Conditioner
Features
Air Directional Louvers
WARNING
CAUTION
To reduce the risk of re, electric shock,
or injury to persons, read the IMPORTANT
SAFETY INSTRUCTIONS before operating
this appliance.
Please always wait 3 minutes when turning
unit o then on again, and when changing
from cool to fan and back to cool. This
prevents compressor from overheating &
possibly the circuit breaker tripping.
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 has cooled, adjust the
thermostat to the setting you nd most
comfortable.
5.Make sure that the air ow inside and outside
are not obstructed by anything.
The louvers will allow you to direct the airow
Up or Down(on some models) and Left or Right
throughout the room as needed. Pivot horizontal
louvers until the desired Up/Down direction is
obtained. Move the Lever(s) from side to side
until the desired Left/Right direction is obtained.
Air Direction
Lever
Lever
Lever

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20
Page 20
Air Conditioner
Features
ELECTRONIC CONTROL OPERATING INSTRUCTIONS
NOTE:
Different models have different control buttons and indicator lights. Not all the control buttons
and indicator lights described below are available for the unit you purchased. Please check the
control panel of the unit you purchased.
The unit can be controlled by the unit control alone or with the remote.
• Press Timer button,the TIMER ON or TIMER OFF indicator light illuminates.lt indicates the Auto Start
or Auto Stop program is initiated. For some units, keep pressing the Timer button will cancel the
timer settings.
• 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 the unit is off,
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.
1
25
3 4
1
2
Operation buttons
3
6 7 8 9
ON/OFF : Press ON/OFF button to turn unit on or off.
NOTE: The unit will initiate automatically the Energy Saver function under Cool, Dry and Auto modes.
CONNECT button: For the rst time to use WLAN function, press the button for 3 seconds to initiate
the WLAN connection mode. The LED DISPLAY shows 'AP' to indicate you can set WLAN connection. If
connection(router) is successful within 8 minutes, the unit will exit WLAN connection mode automatically
and the CONNECT indicator illuminates. If connection is failure within 8 minutes, the unit exits WLAN
connection mode automatically. After WLAN connection is successful, you can press and hold
CONNECT and DOWN ( ) buttons at the same time for 3 seconds to turn o WLAN function and
the LED DISPLAY shows 'OF' for 3 seconds, press CONNECT and UP( ) buttons at the same time to
turn on WLAN function and the LED DISPLAY shows 'O
n ' for 3 seconds.
TIMER button