PACKAGED TERMINAL
AIR CONDITIONER (PTAC)
MODELS 4PTC07A-HE-3.5, 4PTH07A-HE-3.5, 4PTC09A-HE-3.5, 4PTH09A-HE-3.5,
4PTC12A-HE-3.5, 4PTH12A-HE-3.5, 4PTC15A-HE-3.5, 4PTH15A-HE-3.5,
4PTC12A-HE-5.0, 4PTH12A-HE-5.0, 4PTC15A-HE-5.0, 4PTH15A-HE-5.0
OWNER’S MANUAL
3
IMPORTANT SAFETY INSTRUCTION ......................................................................................................... 4
BEFORE YOU BEGIN .......................................................................................................................................14
UNIT INSTALLATION ......................................................................................................................................16
DIP SWITCHES .................................................................................................................................................18
DIP SWITCH CONFIGURATIONS by control panel ..............................................................................20
WALL THERMOSTAT TERMINAL (Optional- NOT INCLUDED) ........................................................21
OPERATION INSTRUCTIONS ......................................................................................................................24
CARE & MAINTENANCE ................................................................................................................................26
TROUBLESHOOTING .....................................................................................................................................27
TABLE OF CONTENTS
IMPORTANT NOTE:
Read the manual carefully. Make sure to save this manual for future reference. Illustrations in this manual
are for explanatory purposes only, your actual product may look slightly dierent.
4
IMPORTANT SAFETY INSTRUCTION
READ THESE SAFETY PRECAUTIONS BEFORE INSTALLATION AND OPERATION.
For your safety, it is important that you read and follow the instructions in this manual to minimize the
risk of personal injury, re or electrical shock.
California Proposition 65 Warning
WARNING: Cancer and reproductive harm - P65warningns.ca.gov
WARNING
The signal word indicates a hazard with a medium level of risk
which, if not avoided, may result in death or serious injury.
The signal word indicates a hazard with a low degree of risk
which, if not avoided, may result in minor or moderate injury.
CAUTION
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
classied by the following indications.
• 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 re due
to heat generation. Do not damage or use an
unspecied power cord. It may cause electric
shock or re. If the power cord is damaged, it
must be replaced by the manufacturer or an
authorized service center or a similarly qualied
person in order to avoid a hazard.
• Always install circuit breaker and a dedicated
power circuit. Incorrect installation may cause
re and electric shock. Do not operate with wet
hands or in damp environment. It may cause
electric shock. Do not direct airow at room
occupants only. This could damage your health.
• Always ensure eective grounding. Incorrect
grounding may cause electric shock. Do not
allow water to run into electric parts. It may
cause failure of machine of electric shock.
Do not modify power cord length or share
the outlet with other appliances. It may cause
electric shock or re due to heat generation.
• Unplug the unit if strange sounds, smell, or
smoke comes from it. It may cause re and
electric shock. Do not use the socket if it
is loose or damaged. It may cause re and
electric shock. Do not open the unit during
operation. It may cause electric shock.
• Keep rearms away. It may cause re. Do not
use the power cord close to hating appliances.
It may cause re and electric shock. Do not
use the power cord near ammable gas or
combustibles, such as gasoline, benzene,
thinner, etc. It may cause an explosion or re.
• Ventilate room before operating air conditioner
if there is a gas leakage from another
appliance. It may cause explosion, re and,
burns. Do not disassemble or modify unit. It
may cause failure and electric shock.
WARNING
5
IMPORTANT SAFETY INSTRUCTION
(Continued)
CAUTION
• When the air lter 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. It 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 o, and turn o the circuit
breaker.
• Do not clean unit when power is on as it may
cause re and electric shock, it may cause
an injury.
• Always insert the lters securely. It can be
caused failure if operated without lters.
Please clean lter once every two weeks.
CAUTION
• Hold the plug by the head of the power plug
when taking it out. It may cause electric shock
and damage. Turn o the main power switch
when not using the unit for a long time. It may
cause failure of product or re.
• 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
re or electric shock. Don’t drink water drained
from air conditioner. It contains contaminants
and could make you sick.
• Use caution when unpacking and installing.
Sharp edges could cause injury.
• If water enters the unit, turn the unit o at the
power outlet and switch o the circuit breaker.
Isolate supply by taking the power-plug out
NOTE
This air conditioner is designed to be operated
under the following conditions:
Note: (43/26) °C. It means the dry bulb
temperature is 43°C and the wet bulb
temperature is 26°C
Note: Performance may be reduced outside of
these operating temperatures
Cooling
operation
Outdoor temp: 64-(109/79)°F/
18-(43/26)°C
(64-125° F/18-52°C
for special tropical models)
Indoor temp: 62-(90/73)° F/
17-(32/23)°C
Heating
operation
Outdoor temp: 23-(76/64)° F/
-5-(24/18)°C
Indoor temp: 32-(80/66) °F /
0-(27/19)°C
and contact a qualied service technician.
This appliance is not intended for use by
persons (including children) with reduced
physical, sensory or mental capabilities or lack
of experience and knowledge, unless they
have been given super vision or instruction
concerning use of the appliance by a person
responsible for their safety.
• Children should be supervised to ensure that
they do not play with the appliance.
• If the supply cord is damaged, it must be replaced
by the manufacturer, its service agent or similarly
qualied persons in order to avoid a hazard.
• The appliance shall be installed in accordance
with national wiring regulations.
• Installation must be performed in accordance
with the requirement of NEC and CEC by
authorized personnel only. Do not operate
your air conditioner in a wet room such as a
bathroom or laundry room.
• The appliance with electric heater shall have at
least 1 meter space to the combustible materials.
• Contact the authorized service technician for
repair or maintenance of this unit.
• Contact the authorized installer for installation
of this unit.
6
IMPORTANT SAFETY INSTRUCTION
(Continued)
OPERATION OF CURRENT DEVICE
The power supply cord contains a current device
that senses damage to the power cord. To test
your power supply cord do the following:
• Plug in the Air Conditioner.
• The power supply cord will have TWO buttons
on the plug head. Press the TEST button, you
will notice a click as the RESET button pops out.
• Press the RESET button again, you will notice a
click as the button engages.
• The power supply cord is now supplying
electricity to the unit. (On some products this
is also indicated by a light on the plug head).
WARNING
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 qualied 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.
Avoid re hazard or electric shock. Do not use an
extension cord or an adapter plug. Do not remove
any prongs from the power cord.
FOR YOUR SAFETY
Do not store or use gasoline or other ammable
vapors and liquids in the vicinity of this or any
other appliance.
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-trackty pew it has screen panel
included, remove the screen completely before
installation.
NOTE
• The power supply cord with this air
conditioner contains a current detection
device designed to reduce the risk of re.
In the event that the power cord is damaged,
it cannot be repaired – it must be replaced
with a cord from the product manufacturer.
• Do not use this device to turn the unit on
or o.
• Always make sure the RESET button is
pushed in for correct operation.
• The power supply cord must be replaced if
it fails to reset when either the TEST button
is pushed or if it cannot be reset.
• A new one can be obtained from the
product manufacturer.
• If power supply cord is damaged, it cannot
be repaired. It MUST be replaced by one
obtained from the product manufacturer.
When 265V units are to be installed, the
power supply must be permanent wiring.
Permanent wiring may be done through
the accessory subbase. An exposed cord
connection on 265V units are not permitted.
Grounding type
wall receptacle
Power supply cord
with 3-prong
grounding plug
and current
detection device.
Do not, under any
circumstances, cut,
remove, or bypass the
grounding prongs.
7
IMPORTANT SAFETY INSTRUCTION
(Continued)
• Be sure the air conditioner has been securely
and correctly in stalled according to the
installation instructions in this manual. Save
this manual for possible future use in removing
or installing this unit. When handling the air
conditioner, be careful to avoid cuts from sharp
metal ns on front and rear coils.
ELECTRONIC WORK
(265V MODEL IS NOT INCLUDED)
WARNING
BEFORE PERFORMING ANY ELECTRICAL OR
WIRING WORK, TURN OFF THE MAIN POWER TO
THE SYSTEM
WARNING
ELECTRICAL REQUIREMENTS
Electrical Shock and Personal Injury Hazard
Electrical ground is required on this appliance.
DO NOT ground to a gas line. If cold water pipe
is interrupted by plastic, non-metallic gaskets, or
other insulating materials,
DO NOT use for grounding. Check with a qualied
electrician if you are in doubt as to whether the
appliance is properly grounded.
DO NOT modify power supply cord plug. If it
does not t outlet, have a proper outlet installed
by a qualied electrician.
DO NOT have a fuse in the neutral or grounding
circuit. A fuse in the neutral, or grounding circuit
could result in an electrical shock.
DO NOT use an extension cord with this
appliance. Failure to follow these instructions
could result in electrical shock, serious injury, or
death.
OBSERVE ALL LOCAL GOVERNING CODES
AND ORDINANCES.
Do not, under any circumstances, remove the
power supply cord grounding prong.
NOTE: If codes permit, and a separate
grounding wire is used; it is recommended
that a qualied electrician determine that
the grounding path is adequate and not
interrupted by plastic, nonmetallic gaskets,
or other insulating materials.
RECEPTACLE WIRING
Receptacle wiring should be a minimum of
14 gauge. Use copper wire only. It is your
responsibility to provide proper and adequate
receptacle wiring, installed by a qualied
electrician.
ELECTRICAL REQUIREMENTS
A time delay fuse or time delay circuit breaker is
also required. A separate circuit, serving only this
appliance, MUST be provided.
NOTE: for details about the parameters of the
electric heating function, see the nameplate on
the unit.
NOTE: The cographs are for explanation
purpose only. Your machine may be slightly
dierent. The actual shape shall prevail.
DISPLAY
MAIN
CONTROL
POWER SUPPLY
CORD
NOTE: The shape may be dierent according
to its model:
Power Cord Power Supply
230V ,15A
230V ,20A
230V ,30A
8
IMPORTANT SAFETY INSTRUCTION
WARNING
(For using R290/R32 refrigerant only)
• 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 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) shall be recovered properly,
shall not discharge to air directly.
• 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 specied
for operation.
• Any person who is involved with working on
or breaking into a refrigerant circuit should
hold a current valid certicate from an
industry-accredited assessment authority,
which authorises their competence to handle
refrigerants safely in accordance with an
industry recognised assessment specication.
Examples for such working procedures are:
• breaking into the refrigerating circuit;
• opening of sealed components;
• opening of ventilated enclosures.
• No any open re or device like switch which
may generate spark/arcing shall be around air
conditioner to avoid causing ignition of the
ammable refrigerant used. Please follow the
instruction carefully to store or maintain the
air conditioner to prevent mechanical damage
from occurring.
• 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 ames, an operating gas appliance)
and ignition sourcesor (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 ames, an operating gas appliance
or an operating electric heater).
• Do not pierce or burn.
• Be aware that the refrigerants may not contain
an odor.
(Continued)
IMPORTANT NOTE:
Read this manual
carefully before installing or operating
your new air conditioning unit. Make sure
to save this manual for future reference.
Explanation of symbols displayed on the unit
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.
9
IMPORTANT SAFETY INSTRUCTION
WARNING
(For using R290/R32 refrigerant only)
TRANSPORT OF EQUIPMENT CONTAINING
FLAMMABLE REFRIGERANTS
• See transport regulations.
MARKING OF EQUIPMENT USING SIGNS
• See local regulations.
DISPOSAL OF EQUIPMENT USING
FLAMMABLE REFRIGERANTS
• See national regulations.
STORAGE OF EQUIPMENT/APPLIANCES
• The storage of equipment should be
in accordance with the manufacturer’s
instructions.
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.
INFORMATION ON SERVICING
1. Checking 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 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 minimize
the risk of a ammable gas or vapor 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 conned 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 should 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 a 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 suciently
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.
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.
(Continued)
10
IMPORTANT SAFETY INSTRUCTION
WARNING
(For using R290/R32 refrigerant only)
8. Checks to the refrigeration equipment:
Where electrical components are being
changed, they shall be t for the purpose
and to the correct specication. 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 should
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 should 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 should be used. This should be
reported to the owner of the equipment, so
all parties are advised.
• Initial safety checks should 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.
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 aected.
This shall include damage to cables, excessive
number of connections, terminals not made to
original specication, damage to seals, incorrect
tting 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 ammable
atmospheres. Replacement parts should
be in accordance with the manufacturer’s
specications.
NOTE: The use of silicon sealant may
inhibit the eectiveness of some
types of leak detection equipment.
Intrinsically safe components do not
have to be isolated prior to working
on them.
(Continued)
11
IMPORTANT SAFETY INSTRUCTION
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 specied
by the manufacturer. Other parts may result in
the ignition of refrigerant in the atmosphere from
a leak.
CABLING
• Check that cabling will not be subject to wear,
corrosion, excessive pressure, vibration, sharp
edges or any other adverse environmental
eects. The check shall also take into account
the eects of aging or continual vibration from
sources such as compressors or fans.
DETECTION OF FLAMMABLE
REFRIGERANTS
• Under no circumstances, should 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)
should not be used.
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
should 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 should 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 conrmed.
• 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 pipework.
• If a leak is suspected, all naked ames should be
removed/ extinguished. If a leakage of refrigerant is
found which requires brazing, all of the refrigerant
should 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)
should then be purged through the system both
before and during the brazing process.
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 should 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.
• The refrigerant charge should be recovered
into the correct recovery cylinders. The system
should 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 should 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
pipework are to take place.
• Ensure that the outlet for the vacuum pump is
not close to any ignition sources and there is
ventilation available.
WARNING
(For using R290/R32 refrigerant only)
(Continued)
12
IMPORTANT SAFETY INSTRUCTION
CHARGING PROCEDURES
• In addition to conventional charging procedures,
the following requirements should be followed.
Ensure that contamination of dierent
refrigerants does not occur when using charging
equipment. Hoses or lines should be as short as
possible to minimize the amount of refrigerant
contained in them.
• Cylinders should 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 should be taken not to overll the
refrigeration system.
• Prior to recharging the system, it should be
pressure tested with OFN. The system should be
leak tested on completion of charging but prior
to commissioning. A follow up leak test should
be carried out prior to leaving the site.
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 should 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.
• Become familiar with the equipment and its
operation.
• Isolate the system electrically.
• Before attempting the procedure ensure that:
• When breaking into the refrigerant circuit
to make repairs or for any other purpose,
conventional procedures should be used.
• Mechanical handling equipment is available, if
required, for handling refrigerant cylinders.
• 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.
• Pump down refrigerant system, if possible.
• If a vacuum is not possible, make a manifold so
that refrigerant can be removed from various
parts of the system.
• Make sure that cylinder is situated on the scales
before recovery takes place.
• Start the recovery machine and operate in
accordance with manufacturer’s instructions.
Do not overll cylinders. (No more than 80 %
volume liquid charge).
• Do not exceed the maximum working pressure
of the cylinder, even temporarily.
• When the cylinders have been lled correctly
and the process is completed, make sure that
the cylinders and the equipment are removed
from the site promptly and all isolation valves on
the equipment are closed o.
• Recovered refrigerant should not be charged
into another refrigeration system unless it has
been cleaned and checked.
LABELLING
• Equipment should be labelled stating that it
has been de-commissioned and emptied of
refrigerant. The label should be dated and
signed. Ensure that there are labels on the
equipment stating the equipment contains
ammable refrigerant.
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
WARNING
(For using R290/R32 refrigerant only)
(Continued)
13
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 should be employed to
accelerate this process. When oil is drained from
a system, it should be carried out safely.
• Non-duct connected appliances containing
A2L refrigerants with the supply and return air
openings in the conditioned space may have the
body of the appliance may be installed in open
areas such as false ceilings not being used as
return air plenums, as long as the conditioned air
does not directly communicate with the air of the
false ceiling.
WARNING
(For using R290/R32 refrigerant only)
(Continued)
IMPORTANT SAFETY INSTRUCTION
14
CAUTION
NOTE: The illustrations in the manual are
for explanation purpose only. The design
specications are subject to change without prior
notice. Your PTAC may be slightly dierent.
WHAT IS IN THE PACKAGE
WHAT YOU NEED TO PURCHASE
PREPARE THE FOLLOWING TOOLS
BEFORE THE INSTALLATION
The installation must be carried out in
strict accordance with the instructions
in this manual.
Installing your AC should take about
60 minutes.
We recommend doing this with a helper.
We’re here if you need us, please
contact your local distributor for
assistance.
INSTALLATION SIZE AND
POSITION REQUIREMENTS
CAUTION Be careful! There are sharp
edges that can cause serious cuts. Please
use gloves.
BEFORE YOU BEGIN
Unit
Control panel sticker
Owner’s manual
Wall sleeve
(Not included)
*Tools not included
Gloves Screwdriver Pencil
Drill
Ruler or tape measure
Level
This unit is controlled by wall mounted thermostat
M
anual
Manual
15
INSTALLATION SIZE CONFIRMATION
Installation size conrmation:
BEFORE YOU BEGIN
CONFIRMATION OF INSTALLATION
POSITION
NOTE: To make the appliance work better,
please do not place a barrier in the air outlet.
Conrmation of installation position:
(Continued)
16
UNIT INSTALLATION
NOTE: Illustrations in this manual are for
explanatory purposes. The actual shape of
your unit may be slightly dierent. The actual
shape shall prevail.
NOTE: Please doing this with a helper, or even
two helpers.
What you need:
PREPARATIONS FOR UNIT
INSTALLATION
1. Attach wall sleeve.
Refer to the installation instruction of sleeve
assembly for details. To avoid vibration and
noise,make sure the wall sleeve is installed
securely and rmly.
2. Prepare for unit installation.
Carefully remove shipping tapes from the front
panel. (See Fig.6). Remove the front panel. (See
Fig.7)
Unit
Outlet
Air Intake
Control panel cover
17
UNIT INSTALLATION
UNIT INSTALLATION
3. Install and x the main part of the unit.
Remove the shipping screw
from the vent door. (See Fig.8)
Rotate the vent control lever to either open or
close the vent door. (See Fig.9)
NOTE: When vent control lever set at CLOSE,
only the air inside the room is circulated and
ltered. When set at OPEN, some outdoor
air will be drawn into room. This will reduce
heating or cooling eciency.
CAUTION
Do not put obstacles around air-inlet or inside of
air-outlet of the unit, such as window curtain etc.
Always insert the lter securely, clean lter once
every two weeks as required. Clean water and mild
soap or a vacuum adapter can be used to clean
the lter.
INSTALL THE UNIT INTO THE WALL
SLEEVE
4. Install the unit into the wall sleeve.
Lift unit level and slide unit into wall sleeve until
rmly against front of wall sleeve and secure
with 4 screws and washers (supplied in the
SLEEVE ASSEMBLY) through the unit ange
holes. (See Fig.10 and Fig.11)
5. Reinstall front panel.
Place tabs over top rail. Push Inward at bottom
until panel snaps into place. (See Fig.12)
(Continued)
18
DIP SWITCHES
CUSTOMIZE YOUR FEATURES
NOTE: Unit must be powered OFF to eectively
change their status.
Product function reset operation
DIP SWITCHES CONFIGURATIONS
Please refer to the following table for DIP SWITCHES CONFIGURATIONS operation.
Low Temp. Protection (optional).
If unit senses a room temperature below 32°F/0°C,
the fan motor and electric strip heat will turn on
and warm the room to 40°F/4.4°C. The fan stops a
short time after the temperature is satised.
Heat and Cool Fan CON/CYC Dip-switches
Allows the fan to operate in continuous or cycle
modes while the unit is in heating and cooling
mode.
CON (Continuous)
Allows fan to run continuously, circulating air
even when the temperature setting has been
satised. This switch helps to maintain the room
temperature closer to the thermostat setting.
CYC (Cycle)
This setting allows the fan to cycle on and o
with the compressor or electric heater. The fan
stops a short time after the temperature setting is
satised.
Electric Heat Only (for heat pump unit only)
This setting is typically used for Emergency
Heating.
Setpoint Temperature Limits
Provides a restricted range of temperature control.
Wall Thermostat Control
A wired wall thermostat can be connected to the
unit. If it is,this dip switch must be moved to the
Wall Thermostat Enable Position, before the wall
thermostat will begin control.
Low temp. Protection
Fan CON/CYC for cooling
Fan CON/CYC for heating
Set point limit 2
Set point limit 1
Wall thermostat type
Load delay for 3 seconds
Heating type
Temperature display type
Control type
19
(Continued)
DIP SWITCHES
TABLE 1 – DIP SWITCHES & CONFIGURATIONS
No. Up (On) Down (O) Remarks
S1 Electric heat only Electric heat and pump heat For heat pump only
S3 Wall thermostat enable Control panel enable
S4*S5
UP*UP: 60°F~86°F (16°C~30°C);
UP*DOWN: 65°F~78°F (18°C~26°C);
DOWN*UP: 63°F~80°F (17°C~27°C);
DOWN*DOWN: 68°F~75°F (20°C~24°C)
Two congurations (S4*S5)
combine to select set point range.
S6 Fan continuous run for heating Fan cycle for heating
S7 Fan continuous run for cooling Fan cycle for cooling
S8 Low temp. protection enable Low temp. protection disable Optional
S9 (S3UP) Use third party thermostat Use third party thermostat
You can consult with the sales agency
or manufacturer for details.
S9 (S3DOWN) Use control panel only
Use control panel or third party
thermostat
Use control panel or third party
thermostat, the other one must
be turned o.
SW11 Load delay for 3 seconds Normal Optional
20
DIP SWITCH CONFIGURATIONS BY CONTROL PANEL
NOTE: Unit must be powered OFF to eectively change their status.
• Press the up and down buttons together for 3 seconds to activate the dip switches congurations
by panel control (see Fig.4).
• See Table 1 for Dip Switches congurations
and functions by panel control.
NOTE: Press the up and down buttons
together for 3 seconds again or no
operation within 30 seconds to exit the
dip switches congurations by panel
control and the unit will save the last
settings.
• Display function settings with 2 digitals
in LED display window, high (left) for dip
switches, low (right) for functions (see Fig.4).
• Press up button to set the dip switches,
press down button to set the functions.
TABLE 1 – DIP SWITCHES & CONFIGURATIONS BY CONTROL PANEL
No. High (Left) Low (Right) Remarks
/ 0 1-by control panel 0-by dip switches
S1 1 1-electric heat only 0-electric heat and pump heat For Heat Pump unit only
S3*S9 3
3-use control panel or some type of wall thermostat;
2-use third party thermostat;
1-use third party thermostat; 0-control panel enable.
You can consult with the sales
agency or manufacturer for
details
S4*S5 4
4-62°F~86°F (17°C~30°C); 3-60°F~86°F (16°C~30°C);
2-65°F~78°F (18°C~26°C); 1-63°F~80°F (17°C~27°C);
0-68°F~75°F (20°C~24°C)
S6 6 1-fan continuous run for heating 0-fan cycle for heating
Not available for 1-use third
party thermostat
S7 7 1-fan continuous run for cooling 0-fan cycle for cooling
S8 8 1-low temp. protection enable 0-low temp. protection disable Optional
S7 A 1-front desk control disable 0-front desk control enable Optional
S11 B 1-load delay for 3 seconds 0-normal Optional
NOTE:
1. The LED display window will show 00 when you rst enter the setting mode, only when you set 01 you
can start the next settings.
2. To activate front desk control function, you need to pull the dip switch SW7 to DOWN (OFF) , and then
set the panel control to A0 .
3. After all set, press up and down buttons together for 3 seconds to exit the operation interface and cut
o the power. When re-power on, the settings are activated.
21
WALL THERMOSTAT TERMINAL (Optional- NOT INCLUDED)
IMPORTANT
Only trained, qualied personnel should access
electrical panel on unit and install electrical
accessories. Please contact your local electrical
contractor, dealer, or distributor for assistance.
THERMOSTAT WIRE ROUTING
Thermostat wire is eld supplied. Recommended
wire gauge is 18 to 20 gauge solid thermostat wire.
NOTE: It is recommended that extra wires are
run to unit in case any are damaged during
installation. Thermostat wire should always be
routed around or under, NEVER through, the
wall sleeve. The wire should then be routed
behind the front panel to the easily accessible
terminal connector.
Fig. A - Proper Wire Routing Beneath Unit
NOTE: Refer to thermostat installation
instructions for details on installing
wall thermostat.
INSTALLATION INSTRUCTION OF SOME
TYPES OF WALL THERMOSTAT
You can Consult with the sales agency or
manufacturer for details.
• Pull the dip switch to the DOWN (OFF) position
as shown below.
• Insert the wire connector of the wall
thermostat into the relevant terminal according
to dierent shapes as shown below.
22
WALL THERMOSTAT TERMINAL (Optional- NOT INCLUDED)
INSTALLATION INSTRUCTION OF PTAC
3RD PARTY WALL THERMOSTAT
• Remove the two screws as shown below and
take the cover panel down.
CAUTION
UNIT DAMAGE HAZARD
• Failure to follow this caution may result in
equipment damage or improper operation.
• Improper wiring may damage unit electronics.
Common busing is not permitted. Damage or
erratic operation may result.
(Continued)
TERMINAL DESIGNATION
MODE B
Wire color
FC(L) Front desk control terminal L Brown
FC(N) Front desk control terminal N Pink
LOW-FAN Low fan speed Purple
HI-FAN High fan speed Green
4-WAY
4-wayvalve; Reverse cycle
(Energized in Heat) For heat
pump models
Blue
HEAT2 Electrical heater 2 White
HEAT1 Electrical heater 1 White
COMP Compressor Yellow
24V(N)
24V AC terminal N (Neutral),
Common
Black
24V(L) 24V AC terminal L Red
23
WALL THERMOSTAT TERMINAL (Optional- NOT INCLUDED)
(Continued)
NOTE:
• Use terminal 4-way for heat pump
connection only.
• Suggest set the compressor protection
time more than 3 minutes in . If set less
than 3 minutes, the compressor will restart
delay 3 minutes still.
• Wall thermostat must be heating
changeover 4-way valve.
• For thermostats that have only one fan
speed output (on or auto),the fan speed is
determined by how the terminal connector
is wired. If Low fan is desired, wire the G
output from the thermostat to (LOW-FAN)
on the units terminal block.
• If High fan is desired, wire the G output
from the thermostat to (HI-FAN) on the
units terminal block.
• The range of set temperature of Wall
thermostat must be in consonance with the
range of DIP switch setting.
• Wall thermostat must be set the type
properly in consonance with the unit type :
heat pump or no heat pump.
• If the has only one electrical heater output,
connect the two terminals of HEAT 1 and
HEAT 2, the unit can operate two electrical
heaters (only for the unit has two electrical
heaters). Otherwise operate one electrical
heater.
• Please do not remove the control panel.
FRONT DESK CONTROL
The controller can handle a switch signal from
FC(L) and FC(N) input, called front desk control.
Input must be 24VAC. If system doesn't receive
a 24VAC signal, it will turn unit o; otherwise, the
unit runs in normal control. The dip switch can
control the FRONT DESK CONTROL feature. The
dip switch is on the DOWN position, the unit will be
turn o; otherwise,the unit runs in normal control.
See Fig B.
24
OPERATION INSTRUCTIONS
CONTROL PANEL
NOTE:
The control panel keypad will look like
Fig.1- For models with a remote control signal
receptor, the unit can be controlled by the display
panel or by a hand held remote (not included).
1. POWER – FUNCTION
Press the POWER button to turn the unit on or o.
2. MODE – FUNCTION
Push this button to cycle through the modes
from COOL-DRY-HEAT-FAN-COOL. The indicator
light beside the "MODE" option will illuminate,
identifying the mode selected.
• COOL: Cooling begins automatically when the
room temperature is above the set point,and
stops when the room temperature is 2°C(4°F)
below the set point. But the compressor will
run 5 minutes at least in COOL mode before
stopping.
• HEAT: For heat pump models, the unit can
alternate to run between in reverse cycle heat
mode and electric heater mode according
to the dierence between the setting
temperature and the room temperature.
• The fan motor cycles with the compressor
stop.
• DRY: In this mode, the air conditioner will
generally operate in the form of a dehumidier.
Since the conditioned space is a closed or
sealed area, some degree of cooling will
continue.
NOTE:
The reverse cycle and electric heater cannot
be run at the same time.
In following cases, it is normal that the reverse
cycle does not operate.
1. When the outdoor temperature is lower
than 4°C/40°F or the room temperature
falls to 4.5°C/8°F below the set point
temperature.
2. There is a 3-minute minimum compressor
run time at any setting to prevent short
cycling. The indoor fan motors starts
before the compressor and stops after
the compressor cycles o.
3. Push the S1 on the DIP SWITCHES to UP
(ON) position.
4. When frost builds up to the evaporator
coils, the unit will defrost automatically
and the compressor will cycle o.
When you select AUTO mode, the FAN speed
will be automatically adjusted at the setting
temperature and room temperature.
Fan operation only without heating and
cooling.
If the unit has DIP SWITCHES feature, the
temperature range can be set and is controlled
by DIP SWITCHES. See DIP SWITCHES
CONFIGURATIONS on page 18 for details.
3. UP AND DOWN BUTTONS
Push the UP (or DOWN) button to increase (or
decrease) the set temperature of the unit in
cooling or heating mode. The temperature can
be set by increments of 1°C (1°F).The setting
temperature appears in the display.
NOTE:
NOTE: Press and hold “+”and“-” buttons
together for 3 seconds to alternate the
temperature display between °C & °F scale.
25
OPERATION INSTRUCTIONS
(Continued)
4. FAN (FAN SPEEDS) – FUNCTION
Every time you push this button,the fan speed
cycles through the settings as follows:
AUTO-HIGH-LOW-AUTO.
NOTE: When you select AUTO mode, the FAN
speed will be automatically adjusted at the
setting temperature and room temperature. In
Dry mode, the fan speed is controlled at Low
speed automatically.
5. CONSTANT FAN – FUNCTION
In cooling mode, press the button to turn on or
o the constant fan function. When the function
is turned on, the constant fan light will illuminate,
identifying the fan continuous run for cooling.
When the function is turned o, the constant fan
light will go out, identifying the fan cycle run with
compressor stop.
NOTE: Every time the unit is turned on, the
function will work per the DIP SWITCHES
CONFIGURATIONS
6. PANEL LOCKING – FUNCTION
Long press the ON/OFF (1) and Constant Fan (5)
buttons simultaneously for 5 seconds. The hand
held remote control (not included) will still work
after the display panel is locked. Turn the lock
feature o by repeating the same step.
NOTE: LL will show on the display when the
control panel is locked.
7. DISPLAY
Shows the set temperature in °C or °F. While on
Fan only mode,it shows the room temperature.
Control code (on some models):
• LC - Buttons on the control panel is not
available. The unit can be set by using wire
controller only.
• FC - Buttons on the control panel and wire
controller are not available. The unit can be
set by using FRONT DESK CONTROL only.
Error codes:
• E0 - Failure of EEPROM parameter
• E3 - The fan stall error
• E4 - Main control and Display
communication error
• AS - Room temperature sensor error;
• ES - Evaporator temperature sensor error;
• CS - Condenser temperature sensor error;
• OS - Outside temperature sensor error;
• HS - Exhaust temperature sensor error;
• LE - Wire controller error
NOTE: When error occurs,unplug the unit and
plug it back in. If error repeats, call for service.
Other codes:
•
LO - Room temperature is lower than 0°C/32°F;
•
HI - Room temperature is higher than 37°C/99°F;
• FP - Low temp. Protection.
NOTE:
All the illustrations in this manual are for
explanation purpose only. Your air conditioner may
be slightly dierent. The actual shape shall prevail.
ACCESSORIES
NOTE: When the unit displays LC (Options on
the control panel are not available. The unit can
be set by using wire controller only). You can
install the Accessory on the control panel.
NOTE: For some models, there is
corresponding operation happened after 3
seconds when pressing any button.
NOTE: When there are dierences between
USERS MANUAL and Remote controller
Illustration on function description, the
description on USERS MANUAL shall prevail.
26
CARE & MAINTENANCE
CAUTION
UNIT DAMAGE HAZARD Failure to follow this
caution may result in equipment damage or
improper operation. Airow restriction may cause
damage to the unit.
FRONT PANEL AND CASE
• Turn unit o and disconnect power supply. To
clean, use water and a mild detergent. Never
use bleach and abrasives; Some commercial
cleaners may damage or melt the plastic parts.
OUTDOOR COIL
• Coil on outdoor side of unit should be checked
regularly. Unit will need to be removed to
inspect dirt build-up that will occur on the
inside of the coil. If clogged with dirt and soot,
coil should be professionally cleaned. Clean
inside and outside of outdoor coils regularly.
NOTE: Never use a high-pressure spray on coil.
CAUTION
Failure to follow this caution may result in
equipment damage or improper operation.
• Do not operate unit without lters in place. If a
lter becomes torn or damaged, it should be
replaced immediately.
• Operating without lters in place or with
damaged lter will allow dirt and dust to reach
indoor coil and reduce cooling, heating, airow
and eciency of unit. Airow restriction may
cause damage to unit.
The most important thing you can do to maintain
unit eciency is to clean the lters once every two
weeks as required. Clogged lters reduce cooling,
heating and airow.
Keeping lters clean will:
• Decrease cost of operation.
• Save energy.
• Prevent clogged indoor coil.
• Reduce risk of premature component failure.
TO CLEAN AIR FILTERS:
Vacuum o heavy soil. Run water through lter.
Dry thoroughly before replacing.
REMOVING AIR FILTER
VENT DOOR FILTER:
IMPORTANT: TURN UNIT OFF BEFORE CLEANING.
• If the vent door is open,access requires the
removal of the unit from the wall sleeve. Clean
the vent lter twice a year or as required.
• Make sure to remove the shipping screw from
the vent door.(See.Fig.8)
• Rotate the vent control lever to open the vent
door. (See. Fig.15)
• Remove four screws from the vent door lter.
(See.Fig.15)
• First pull out the vent door steel wire from the
hole of the vent door, then take o the vent
door and lter. (See.Fig.15)
• Clean the lter with water and mild soap. Dry
thoroughly before replacing.
• Replace the vent door and lter,reinstall the
four screws.
• Reinsert the vent door steel wire into the hole
of the vent door.
REPLACING AIR FILTER
27
TROUBLESHOOTING
Before calling for service, review the chart below.
Problem What to check
Unit does not start
Unit may have become unplugged. Check that plug is plugged securely in wall receptacle.
NOTE: Plug has a test/reset button on it. Make sure that the plug has not tripped.
Fuse may have blown. Replace the fuse. See Note 1.
Unit may be o. Reset circuit breaker. See Note 1.
Unit may be in a protection mode. Turn unit on (bottom right button on keypad).
Unit not cooling/
heating room
Unit air discharge section is blocked. Make sure that curtains,blinds or furniture are not
restricting or blocking unit airow.
Temperature setting is not high or low enough. NOTE: Set point limits may not allow the unit to
heat or cool the room to the temperature desired. Check section on dip switch settings. Reset
to a lower or higher temperature setting.
Unit air lters are dirty. Remove and clean lters.
Room is excessively hot or cold when unit is started. Allow sucient amount of time for unit to
heat or cool the room. Start heating or cooling early before outdoor temperature,cooking heat
or gatherings of people make room uncomfortable.
Vent door left open. Close vent door. Unit may be in a protection mode. Check dip switch and
wall thermostat settings for desired comfort.
Compressor is in time delay. Wait approximately 3 minutes for compressor to start.
Display has strange
numbers/ characters on it
The unit may be in a protection mode.
The unit may be in a protection mode.
Unit making noises Clicking, gurgling and whooshing noises are normal during operation of unit.
Water dripping outside
If a drain kit has not been installed, condensation runo during very hot and humid weather is
normal. See Note 2. If a drain kit has been installed and is connected to a drain system, check
gaskets and ttings around drain for leaks and plugs.
Water dripping inside
Wall sleeve is not installed level. Wall sleeve must be installed level for proper drainage of
condensation. Check that installation is level and make any necessary adjustments.
Ice or frost forms
on indoor coil
Low outdoor temperature. When outdoor temperature is approximately 55OF or below, frost
may form on the indoor coil when unit is in Cooling mode. Switch unit to FAN operation until
ice or frost melts.
The lters are dirty. Remove and clean lters.
Compressor protection
Power may have cycled,so compressor is in a restart protection. Random Compressor restart
- Whenever the unit is plugged in,or power has been restarted, a random compressor restart
will occur. After a power outage,the compressor will restart after approximately 3 minutes.
Compressor Protection - To prevent short cycling of the compress or, there is a random startup
delay of 3 minutes and a minimum compressor run time of 3 minutes.
Electric heating failure Clean the evaporator once every three months by professional people.
NOTE: 1. If circuit breaker is tripped or fuse is blown more than once, contact a qualied electrician.
2. If unit is installed where condensation drainage could drip in an undesirable location, an accessory drain
kit should be installed and connected to drain system.
844-4PA-AIRE | 844-472-2473 | support@perfectaire.us
CANADA SUPPORT 877-997-2473 | supportcanada@perfectaire.us
www.perfectaire.us
5401 Dansher Road
Countryside, IL 60525
Printed in China | 0123_M011
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