ICP PHX4 User manual

Package Heat Pump
Owner's Guide to Operating and
Maintaining Your Package Heat Pump
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:PHX4 12/5/06 518 02 1701 O0

EFFICIENT COOLING
Your new unit is among the most energy-efficient and
reliable heat pump products available today. To assure its
dependability, spend just a few minutes with this booklet
now. Learn about the operation of your heat pump and the
small amount of maintenance ittakes to keep itoperating at
its peak efficiency.
With minimal care, your heat pump will provide you and
your family with satisfying home comfort - both now and for
years to come. .,nlmomC,earo°o°so°dAooess .S.own,Pan°,s
IBlower Compartment Panel
B Chassis - 2"
C Chassis - 6"
80"
80-00-01
Control Panel
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 heat pump system should never be operated
without a clean air filter properly installed. Plan to inspect
the filter periodically. 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 10-in.
minimum clearance between the outdoor unit and tall
grass, vines, shrubs, et cetera.
• Your multi-purpose indoor thermostat is the control
center for your heat pump 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
temperature selector on the thermostat for any reason for
at least 5 minutes after the compressor has shut off.
• You may find that you can maintain greater personal
comfort by running the fan continuously. Air pockets can
form due to the structure of the building, placement of
registers, et cetera. These air pockets may be too cool or
warm for your liking. Continuous fan operation minimizes
any temperature differences. Also, systems equipped
with electronic air cleaners and/or humidifiers offer the
added benefits of having the air continuously cleaned
year-round, and humidified during the winter season.
• Your heat pump will remove humidity from your home
during the cooling season. After a few minutes of
operation, you should be able to see water trickle from the
condensate drain of the cooling coil. Check this
occasionally to be sure the drain system is not clogged.
Ofcourse, don't expect to see much drainage if you live in
a very dry environment.
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
Improper installation, adjustment, alteration, service,
maintenance, or use can cause fire or an explosion
which could result in personal injury or unit damage.
Consult a qualified installer, service agency, or gas
supplier for information or assistance. The qualified
installer or agency must use only factory-authorized kits
or accessories when modifying this product.
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.

Recognize safety information. This is the safety-alert
symbolZ_.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.
OPERATING YOUR UNIT
THERMOSTAT
The operation of your heat pump system is controlled by
the indoor thermostat. You simply adjust the thermostat
and it maintains the indoor temperature at the level you
select. Most thermostats for heat pump systems include
temperature control selector, FAN switch, and SYSTEM
switch. EMERGENCY HEAT control is usually provided
with the 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.
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 heat pump 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 another selection, AUTO. The
heat pump will not operate when the SYSTEM switch is set
atthe OFF position. With the SYSTEM switch set at COOL,
your heat pump will operate in its cooling mode when the
indoor temperature rises above the level that you wish to
maintain. With the SYSTEM switch set at the HEAT
position, your heat pump will provide warmth 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.
Depending on your winter heating needs, your home
comfort system may include supplementary electric
resistance heat. If it does, your system will turn on electric
resistance heat only as necessary to meet your heating
needs during defrost cycles or when outdoor temperatures
are low. In the event of a heat pump malfunction, you can
use the EMERGENCY HEAT setting on your thermostat to
manually select electric resistance heat. Heat pump
heating is deactivated when EMERGENCY HEAT is
selected. Because electric resistance heat consumes
more electricity than the heat pump's normal heating
mode, selecting EMERGENCY HEAT will result in higher
electricity costs. If it becomes necessary to use
EMERGENCY HEAT to provide heat, call your dealer for
service as soon as it is practical.
See your thermostat owner's manual for additional
information.
Sequence of Operation
Cooling Mode:
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 Mode:
With a first stage call for heating (Y1), the indoor fan (low
stage) energizes immediately whereas the contactor
energizes after a 5 minute time delay (incase of an initial
start up) starting the compressor (low stage) and the
outdoor fan motor. If the low stage operation cannot satisfy
the heating demand, the second stage heating (Y2)
energizes switching the compressor into high stage
heating through energizing an internal solenoid valve
inside the scroll compressor and switching the indoor fan
into high stage. The auxiliary or back up heat is controlled
by a third stage (W2). If the demand is not met, W3 is
energized incase of staged heating. When heating
demand is satisfied, the refrigeration system along with the
auxiliary heat shuts off.
Cooling Cycle - When operating in the cooling cycle, your
heat pump will run until the indoor temperature is lowered
to the level you have selected. On extremely hot days, your
heat pump will run for longer periods at a time and have
shorter "off" periods than on moderate days.
The following are typical conditions that add extra heat
and/or humidity to your home. Your heat pump 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 - With the SYSTEM switch of your indoor
thermostat set to the HEAT position, the heat pump will

operatein its heatingmodeuntilroomtemperatureis
raisedto thelevelyou haveselected.Ofcourse,the
heatingunitwillhaveto operatefor longerperiodsto
maintaina comfortableenvironmentoncolderdaysand
nightsthanonmoderateones.
DefrostCycle- Whenyourheatpumpisprovidingheatto
yourhomeandtheoutdoortemperaturedropsbelow45
degreesFahrenheit,moisturemaybegintofreezeonthe
surfaceoftheoutdoorcoil.Ifallowedtobuildup,thisice
wouldimpedeairflowacrossthe coil andreducethe
amountof heatabsorbedfromtheoutsideair.So,to
maintainenergy-efficientoperation,yourheatpumphas
anautomaticdefrostcycle.
Thedefrostcyclestartsatapresettimeintervalof30,60,
90or120minutes.Defrostwillstartatthepresettimeonlyif
the ice is sufficientto interferewith normalheating
operation.
Aftertheiceis meltedfromtheoutdoorcoil,oraftera
maximumof10minutesintheDefrostmode,theunitwill
automaticallyswitchbacktonormalheatingoperation.
Donotbealarmedifsteamorfogappearsattheoutdoor
unitduringthedefrostcycle.Watervaporfromthemelting
icemaycondenseintoamistinthecoldoutsideair.
EmergencyHeat- TheEMERGENCYHEATsettingon
yourthermostatrefersto any supplementaryheating
appliancethatmaybe includedin yourhomecomfort
system.OperationoftheEMERGENCYHEATsourcemay
berequiredifheatingdemandsexceedthecapacityofthe
heatpump,oriftheheatpumpmalfunctions.
ThewordEmergencyonyourthermostatdisplaywillshow
ifEmergencymodeisselected.Thisindicatesthattheheat
pumpis off and the supplementalheatingsourceis
operating.
TheAUXHEATdisplaywillshowundernormaloperation
whenthesecondstageofheatisoperating.
Donotoperateyourunitintheheatingmodewhenoutdoor
temperaturesare above66°F unlessyou set your
thermostattoemergencyheatmode.
PERFORMING ROUTINE MAINTENANCE
With the proper maintenance and care, your heat pump 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:
ELECTRICAL SHOCK HAZARD.
Failure to 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.
• DISCONNECT ALL ELECTRICAL POWER TO THE
HEAT PUMP BEFORE PERFORMING SERVICE OR
MAINTENANCE. DO NOT REMOVEACCESS PANELS.
For a packaged heat pump, 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)if you
have the reusable type.
Disposable filters should be replaced by similar, new filters
of the same dimensions.
Reusable, permanent filters should be washed in a solution
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 of your 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
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.
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

COOLorAUTOposition.Ifyourequirewarmth,besurethe
temperaturecontrol selector is set above room
temperatureandtheSYSTEMswitchisatHEATorAUTO.
TheFANswitchshouldbesetatONforcontinuousblower
operationorAUTOifyouwishtheblowertofunctiononly
whiletheunitisoperating.
Ifyourcomfortsystemstillfailstooperate,contactyour
servicingdealerfortroubleshootingandrepairs.Specify
yourapparentproblem,andstatethemodelandserial
numbersof your equipment.(Youshouldhavethem
recordedonpage5ofthisbooklet.)Withthisinformation,
yourdealermaybeabletoofferhelpfulsuggestionsover
thephone,orsavevaluabletimethroughknowledgeable
preparationfortheservicecall.
REGULAR DEALER MAINTENANCE
In addition to the routine maintenance that you perform,
your home comfort system should be inspected annually
by a properly trained service technician. The inspection
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 heat pump 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
Product No.
Model No.
Serial No.
Heater, if applicable:
Part No.
Kilowatt Rating
INSTALLATION DATA
Zip
UNIT DATA