ICP PHF3 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.
PrintedinU.S.A. 12/2/05 518 02 1001 00

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
our family with satisfying home comfort - both now and for
ears to come.
FiGuRE i t Minimum ClearancesandAccessPanels J
Blower Compartment Panel
Small Chassis - 2"
Large Chassis
80"
80-00-01
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.
OPERATING YOUR UNIT
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.
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
at the 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.WiththeSYSTEMswitchsetintheAUTOposition,
thecoolingmodeisactivatedwhentheindoortemperature
risesabovethethermostatcoolingtemperaturesetting,or
the heatingmodewill be activatedwhenthe indoor
temperaturedropsbelowthethermostatsettingforthe
heatingcycle.
Dependingon yourwinterheatingneeds,yourhome
comfortsystemmay includesupplementaryelectric
resistanceheat.Ifitdoes,yoursystemwillturnonelectric
resistanceheatonlyasnecessarytomeetyourheating
needsduringdefrostcyclesorwhenoutdoortemperatures
arelow.Intheeventofaheatpumpmalfunction,youcan
usetheEMERGENCYHEATsettingonyourthermostatto
manuallyselectelectricresistanceheat.Heatpump
heatingis deactivatedwhenEMERGENCYHEATis
selected.Becauseelectricresistanceheatconsumes
moreelectricitythan the heatpump'snormalheating
mode,selectingEMERGENCYHEATwillresultinhigher
electricitycosts. If it becomesnecessaryto use
EMERGENCYHEATtoprovideheat,callyourdealerfor
serviceassoonasitispractical.
See your thermostatowner'smanualfor additional
information.
Sequence of Operation
Cooling Mode:
(1)On a call for cooling -PHF324 to PHF342
With a call for cooling (Y), the indoor fan energizes
immediately whereas the contactor energizes after a 5
minute time delay (incase of an initial start up) starting the
compressor and the outdoor fan motor.
(2)When the cooling setpoint has been satisfied
When the cooling demand is met, (Y) de-energizes,
shutting off the compressor, indoor fan and the outdoor
fan.
(1)On a call for cooling -PHF348
This unit utilizes a 2 stage indoor thermostat. With a first
stage call for cooling (Y1), the indoor fan (low stage)
energizes immediately where as 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
cooling demand, the second stage cooling (Y2)
energizes switching the compressor into high stage
cooling through energizing an internal solenoid valve
inside the scroll compressor and switching the indoor fan
into high stage.
(2)When the cooling setpoint has been satisfied
When second stage cooling is satisfied, Y2 de-energizes
switching the compressor and the indoor fan into low
stage cooling. When the low stage cooling demand is
met,Y1 de-energizes shutting offthe compressor, indoor
fan and the outdoor fan.
Heating Mode:
(1) On a call for heating -PFM324 toPFM342
With a call for heating (Y), the indoor fan energizes
immediately whereas the contactor energizes after a 5
minute time delay (incase of an initial start up) starting the
compressor and the outdoor fan motor. If (Y) cannot
satisfy the heating demand, the auxiliary or back up heat
(W2) energizes. Incase of staged heating, W3 is
energized if the demand is not met. The highest airflow
selected is run while the electric heat is in operation.
(2)When the heating setpoint has been satisfied
When heating demand is met, W3, W2 and Y sequentially
de-energize shutting off the compressor, indoor fan and
the outdoor fan.
(1)On a call for heating -PFM348
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.
(2)When the heating setpoint has been satisfied
When heating demand is satisfied, W3, W2 and Y2
sequentially de-energize switching the compressor and
the indoor fan into low stage heating. When the low stage
heating demand is met, Y1 de-energizes shutting offthe
compressor, indoor fan and the outdoor fan.
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
operate in its heating mode 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.
Defrost Cycle - When your heat pump is providing heat to
your home and the outdoor temperature drops below 45
degrees Fahrenheit, moisture may begin to freeze on the
surface of the outdoor coil. If allowed to build up, this ice
would impede airflow across the coil and reduce the
amount of heat absorbed from the outside air. So, to
maintain energy-efficient operation, your heat pump has
an automatic defrost cycle.
The defrost cycle starts at a preset time interval of 30, 60,
90 or 120 minutes. Defrost will start atthe preset time only if
the ice is sufficient to interfere with normal heating
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) 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 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
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 5 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 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
UNIT DATA
Zip.