ICP PAX4 User manual

Package Air Conditioner
Owner's Guide to Operating and Maintaining
Your Package Air Conditioner
ELECTRICAL SHOCK HAZARD.
Failure to follow this warning could result in
personal injury, death and/or property damage.
Disconnect power at fuse box or service panel
before performing recommended maintenance.
This manual should be left with the owner.
Printed in U.S.A.
Code: PAX4 12/7/06 519 02 1601 00

SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment
can be hazardous due to system pressure and electrical
components. Only trained and qualified personnel should
install, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance
functions of cleaning coils and filters. All other operations
should be performed by trained service personnel. When
working on air-conditioning equipment, observe
precautions in the literature, tags, and labels attached to
the unit, and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloth for unbrazing operations.
Have fire extinguisher available for all brazing operations.
FIRE, AND ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury, death and/or property damage.
Before performing service or maintenance operations
on unit, turn off gas supply to unit. Then turn off unit main
power switch and install lockout tag.
RecognizAe safety information. This is the safety-alert
symbol/.v_ When you see this symbol in instructions or
manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING,
CAUTION, and NOTE. These words are used with the
safety-alert symbol. DANGER identifies the most serious
hazards which will result in serious injury or death.
WARNING signifies a hazard which could result in serious
injury or death. CAUTION is used to identify unsafe
practices which may result in minor personal injury or
product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation,
reliability, or operation.
It is the personal responsibility and obligation of the
customer to contact a qualified installer to ensure that the
installation is adequate and conforms to governing codes
and ordinances.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in the shorten
life of unit components.
Do NOT operate unit in a corrosive atmosphere
containing chlorine, fluorine, or any other corrosive
chemicals.
EFFICIENT COOLING
Your new unit is among the most energy-efficient and
reliable air conditioning products available today. To
assure its dependability, spend just afew minutes with this
booklet now. Learn about the operation of your air
conditioner and the small amount of maintenance it takes
to keep it operating at its peak efficiency.
With minimal care, your air conditioner will provide you and
your family with satisfying home comfort [7both now and
for years to come,
F, u.EiI Minimum Clearances and Access Panels
(B Chassis Shown)
Blower Compartment Panet
- 2"
30 _
80-00-01
Control Box
IMPORTANT FACTS
To better protect your investment and to eliminate
unnecessary service calls, familiarize yourself with the
following facts:
FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD
Improper installation, adjustment, alteration, service,
maintenance or use could cause fire, electrical shock
or other conditions which may cause personal injury,
death or property damage.
Refer to this manual. For assistance or additional
information consult a qualified installer, service
agency, distributor, or branch. The qualified installer or
agency must use only factory authorized kits or
accessories when modifying this product.
Your air conditioning system should never be operated
without a clean air filter properly installed. Plan to inspect
the filter monthly and replace if dirty. A clogged air filter
will increase operating costs and shorten the life of the
unit.
• Supply-air and return-air registers should not be
blocked. Drapes, furniture, and toys are some of the
items commonly found obstructing grilles. Restricted
airflow lessens the unit's efficiency and life span.
• Outdoor units must have unrestricted airflow. Do not
cover the unit, lean anything against it, or stand upon it.
Do not allow grass clippings, leaves, or other debris to
accumulate around or on top ofthe unit. Maintain a 12-in.
minimum clearance between the outdoor unit and tall
grass, vines, shrubs, et cetera.
• Your multipurpose indoor thermostat isthe control center
for your air conditioning system. You should familiarize
yourself with its proper operation. Attempting to control
the system by other means - for instance, switching the
electrical supply power ON and OFF - may cause
damage to the unit.
• Thermostat "jiggling" causes rapid-cycling, which is
potentially damaging to the compressor. Do not move the

temperatureselectoronthethermostatforanyreasonfor
atleast5minutesafterthecompressorhasshutoff.
•Youmayfindthatyoucanmaintaingreaterpersonal
comfortbyrunningthefancontinuously.Airpocketscan
formduetothestructureofthebuilding,placementof
registers,etc.Theseairpocketsmaybetoocoolorwarm
foryourliking.Continuousfanoperationminimizesany
temperaturedifferences.Also,systemsequippedwith
electronicaircleanersand/orhumidifiersoffertheadded
benefitsof having the air continuouslycleaned
year-round,andhumidifiedduringthewinterseason.
•Yourairconditionerwillremovehumidityfromyourhome
duringthe coolingseason.After a few minutesof
operation,youshouldbeabletoseewatertricklefromthe
condensatedrain of the coolingcoil. Checkthis
occasionallytobesurethedrainsystemisnotclogged.
Ofcourse,don'texpecttoseemuchdrainageifyoulivein
averydryenvironment.
OPERATING YOUR UNIT
THERMOSTAT
The operation of your air conditioning system is controlled
bythe indoor thermostat. You simply adjust the thermostat
and it maintains the indoor temperature at the level you
select. Most thermostats for air conditioning systems have
three controls. These are the temperature control selector,
FAN switch, and SYSTEM switch.
The temperature control selector is a dial or button(s) that
allows you to establish the degree of temperature that you
wish to maintain for your personal comfort. Some
thermostats possess two temperature control selectors:
one for setting the temperature desired during the cooling
cycle, and one to set the heating operation temperature (if
the accessory electric heater is used).
The FAN switch offers two options for controlling the
blower: AUTO and ON. When set to AUTO, the blower will
run during the time the air conditioner is operating. When
the FAN switch is set at the ON position, the blower will run
continuously.
Typically, the SYSTEM switch on your thermostat offers the
following selections: COOL, OFF, and HEAT. Your
thermostat may also have a fourth selection, AUTO. The
air conditioner will not operate when the SYSTEM switch is
set at the OFF position. With the SYSTEM switch set at
COOL, the cooling section of your comfort system will
operate when the indoor temperature rises above the level
that you wish to maintain. With the SYSTEM switch set at
the HEAT position, the accessory electric heater will
operate automatically whenever the indoor temperature
falls below the level that you have selected.
The AUTO selection found on some thermostats provides
for automatic changeover between cooling and heating
cycles. With the SYSTEM switch set in the AUTO position,
the cooling mode is activated when the indoor temperature
rises above the thermostat cooling temperature setting, or
the heating mode will be activated when the indoor
temperature drops below the thermostat setting for the
heating cycle.
Sequence of Operation
Cooling Operation:
These units use a two stage thermostat. With a first stage
call for cooling (Y1), the compressor energizes in low stage
along with the outdoor fan. The Indoor motor starts in low
stage as well. tf the low stage cooling does not meet the
demand, the high stage cooling demand (Y/Y2) energizes
the second stage of compressor along with the high stage
of ID motor. When the cooling demand is met, the
compressor and the OD fan motor shut off. The ID motor
will run for the programmed off time delay, if selected
before shutting down.
Heating Operation:
With a call for heating (Wl), the auxiliary electric heater is
energized along with the blower motor. The blower will
deliver an airflow selected on the tap selected board per
the electric heater size. If the demand is not, W2 energizes
the second stage of electric heater. When the demand is
met, the electric heater de-energizes along with the Indoor
blower motor.
Continuous Fan:
With the continuous fan option selected on the thermostat,
G is continuously energized and the indoor fan run a
reduced airflow.
The following are typical conditions that add extra heat
and/or humidity to your home. Your air conditioner will work
longer to keep your home comfortable under these
conditions:
• Entrance doors are frequently opened and closed
• Laundry appliances are being operated
• A shower is running
• More than the usual number of people are present in the
home
• More than the normal number of electric lights are in use
• Drapes are open on the sunny side of the home
Heating Cycle - If you own a packaged air conditioner that
includes electric heat as an accessory, you need to set your
thermostat for heating when it is desired.
With the SYSTEM switch of your indoor thermostat set to
the HEAT position, the heating section of your home
comfort system will operate until room temperature is
raised to the level you have selected. Of course, the
heating unit will have to operate for longer periods to
maintain a comfortable environment on colder days and
nights than on moderate ones.
PERFORMING ROUTINE MAINTENANCE
With the proper maintenance and care, your air conditioner
will operate economically and dependably. Maintenance
can be accomplished easily by referring to the following
directions. However, before performing maintenance
consider these important safety precautions:

ELECTRICALSHOCKHAZARD.
Failureto follow this warning could result in
personal injury, death and/or property damage.
Use extreme care during all of the following checks
and procedures.
Make sure electric power is turned OFF as
instructed in appropriate steps.
the unit is no longer level, you should correct the condition.
Relevel it promptly to assure condensate drainage out of
the unit. If you notice that water or ice collects beneath the
unit, arrange for it to be drained away from the unit.
BEFORE YOU CALL FOR SERVICE, CHECK
FOR THESE EASILY SOLVED PROBLEMS
Check the indoor and outdoor disconnect switches. Verify
that circuit breakers are ON.
• DISCONNECTALL ELECTRICAL POWER TO THEAIR
CONDITIONER BEFORE PERFORMING SERVICE OR
MAINTENANCE. DO NOT REMOVEACCESS PANELS.
For a packaged air conditioner unit, disconnect power to
the unit and any supplemental electric heaters.
NOTE: THERE MAY BE MORETHAN ONE ELECTRICAL
DISCONNECT SWITCH.
• ALTHOUGH SPECIAL CARE HAS BEEN TAKEN TO
MINIMIZE SHARP EDGES IN THE CONSTRUCTION
OF YOUR UNIT, BE EXTREMELY CAREFUL WHEN
HANDLING PARTS. DO NOT REACH INTO THE UNIT.
Check the Air Filter - A dirty air filter will cause excessive
strain on the compressor and blower motor. This can cause
the components to overheat and automatically shut down.
In the extreme, the components will fail and need to be
replaced. To avoid inefficient or failed operation of your
unit, CHECK THE FILTER(S) EVERY 3 TO 4 WEEKS.
Replace filter(s) when necessary, or clean the filter(s) ifyou
have the reusable type.
Disposable filters should be replaced by similar, new filters
of the same dimensions.
Reusable, permanent filters should be washed in asolution
of cold water and mild detergent, then rinsed and
thoroughly dried. THE FILTER MUST BE COMPLETELY
DRY BEFORE BEING REINSTALLED. Toavoid prolonged
shutdown of your unit while a filter is drying, you should
have an extra filter on hand. This would allow you to rotate
between the two with minimal downtime for your comfort
system. Extra filters may be purchased from your dealer.
The filter(s) and filter rack for a packaged system are
supplied and installed bythe contractor or dealer. Typically,
the filter(s) and rack are located in the return-air duct at the
outdoor unit or behind the return-air grille(s). Have your
dealer show you the location of your filter(s) and the
procedures for removal and replacement.
If you have any questions about the removal and!or
cleaning ofyour filter(s), contact your dealer for assistance.
If grass clippings, leaves, shrubbery, and debris are kept
away from the unit, minimal care should be sufficient to
keep the system functioning properly. However, if the
outdoor coil becomes dirty, use a brush or vacuum cleaner
and soft brush attachment to clean the exterior surface. If
dirt is deep in the coil, contact your dealer for service. The
outdoor fan motor may have to be disconnected and the
top panel removed to gain access to the coil for thorough
cleaning. Do not attempt this yourself.
Unit Support - Your packaged unit should be maintained
at a level position. If its support should shift or settle so that
Check for sufficient airflow. Check the air filter(s) for any
accumulations of dirt. Check for blocked return-air or
supply-air grilles. Be sure grilles are open and
unobstructed.
Check the settings on your indoor thermostat. If you desire
cooling, see that the temperature control selector is set
below room temperature and the SYSTEM switch is on the
COOL or AUTO position. Ifyou require warmth, be sure the
temperature control selector is set above room
temperature and the SYSTEM switch is at HEAT or AUTO.
The FAN switch should be set at ON for continuous blower
operation or AUTO if you wish the blower to function only
while the unit is operating.
If your comfort system still fails to operate, contact your
servicing dealer for troubleshooting and repairs. Specify
your apparent problem, and state the model and serial
numbers of your equipment. (You should have them
recorded on page 4 of this booklet.) With this information,
your dealer may be able to offer helpful suggestions over
the phone, or save valuable time through knowledgeable
preparation for the service call.
REGULAR DEALER MAINTENANCE
In addition to the routine maintenance that you perform,
your home comfort system should be inspected regularly
by a properly trained service technician. The inspection
(preferably each year, but at least every other year) should
include the following:
• Routine inspection of air filter(s). Replacement or
cleaning as required.
• Inspection and cleaning of the blower wheel, housing,
and motor.
• Inspection and, if required, cleaning of evaporator and
condenser coils.
• Inspection of the coil drain pan, plus the drain lines.
Service should include cleaning if required.
• A check of all electrical wiring and connections.
• A check for secure physical connections of individual
components within units.
• Operational check of the air conditioner system to
determine actual working condition. Necessary repair
and/or adjustment should be performed at this time.

WARRANTY
The unit warranty is in the installer's literature pack. Ensure
that the installer leaves the warranty and literature pack
with you.
Date Installed
Dealer Name
Address
City_
State
Telephone
INSTALLATION DATA
Zip
Product No.
Model No.
Serial No.
Heater, if applicable:
Part No.
Kilowatt Rating
UNIT DATA