Read this owner information to become familiar with the capabilities and use of
your appliance. Keep this with literature on other appliances where you have easy
access to it in the future. If a problem occurs, check the instructions and follow
recommendations given. If these suggestions don’t eliminate your problem, call
your installing contractor or distributor in your area.
INTRODUCTION
Your heat pump is a unique, all weather comfortcontrol system appliance. The basic operation
of the heating/cooling system is described
and illustrated on page 1 of this manual. The
surprising fact that heat exists in air even at
below-freezing temperatures is actually the
basic law of physics which the heat pump
uses to provide energy saving heating comfort.
At outdoor temperatures of 47° Fahrenheit
(or 8° Celsius), your heat pump can deliver
approximately 2 to 3 units of heat energy per each
unit of electrical energy used, as compared to a
maximum of only 1 unit of heat energy produced
with conventional heating systems. During the
cooling season, the heat pump reverses the fl ow
of the heat-absorbing refrigerant to become an
energy-effi cient, central air conditioner.
SECTION 1. OWNER INFORMATION
Your heat pump will heat and cool your home
year round, saving your energy dollars. During the
summer, a heat pump performs like any normal
air conditioner. That is, the excess heat energy
inside the home is absorbed by the refrigerant
and exhausted outside the home. During the
winter months, a heat pump performs like an
air conditioner run in reverse. That is, available
heat energy outside the home is absorbed by
the refrigerant and exhausted inside the home.
This is an effi cient heating means because you
only pay for “moving” the heat from the outdoors
to the indoor area. You do not pay to generate
the heat, as is the case with more traditional
furnace designs.
SYSTEM
MODE
FAN
SWITCH
Figure 1. Typical Thermostat
TEMPERATURE
SENSOR
It is the sole responsibility of the homeowner
to make certain that the heat pump has been
correctly set up and adjusted to operate
properly.
A warranty certifi cate with full details is included
with the heat pump. However, the manufacturer
will not be responsible for any costs found necessary to correct problems due to improper setup,
improper installation, adjustments, improper operating procedure on the part of the user, etc.
Some specifi c examples of service calls which
are not included in the limited warranty are:
1. Correcting wiring problems in the electrical
circuit supplying the heat pump.
2. Resetting circuit breakers or other switches.
3. Adjusting or calibrating of thermostat.
To avoid misunderstandings at a later date,
carefully review these responsibilities with your
dealer or service company.
OPERATING INSTRUCTIONS
To Operate Your Heat Pump For Cooling —
1. Set the thermostat system switch to COOL
and the thermostat fan switch to AUTO. (See
Figure 1)
2. Set the ther mostat temperature selector to the
desired cooling temperature. The outdoor unit
fan, the indoor blower, and the compressor
will all cycle on and off to maintain the indoor
temperature at the desired cooling level.
NOTE: If the thermostat temperature level is
re-adjusted, or if the thermostat system switch
is re-positioned, the outdoor unit fan and the
compressor may not start immediately. A
protective timer circuit holds the compressor and
the outdoor fan off for approximately fi ve minutes
following a previous operation or the interruption
of the main electric power.
To Operate Your Heat Pump For Heating —
1. Set the thermostat system switch for HEAT
and the thermostat fan switch to AUTO. (See
Figure 1)
2. Set the thermostat temperature selector to the
desired heating temperature. The outdoor unit
fan, the indoor blower, and the compressor
will all cycle on and off to maintain the indoor
temperature at the desired heating level.
NOTE: If the thermostat temperature level is
re-adjusted, or if the thermostat system switch
is re-positioned, the outdoor unit fan and the
compressor may not start immediately. A
protective timer circuit holds the compressor and
the outdoor fan off for approximately fi ve minutes
following a previous operation or the interruption
of the main electrical power.
Emergency Heat — Some thermostats will
include a system switch position termed EM HT
or AUX HT, etc. This is a back-up heating mode
to be used only if there is a suspected problem.
With the system switch set to EM HT, etc., the
compressor and outdoor fan will be locked off and
supplemental heat (electric resistance heating)
will be used as a source of heat. Sustained
2
use of electric resistance heat in place of the
heat pump will result in an increase in electric
utility costs.
Defrost — During cold weather heating operation, the outdoor unit will develop a coating of
snow and ice on the heat transfer coil. This is
normal and the unit will periodically defrost itself.
During the defrost cycle, the outdoor fan will stop,
while the compressor continues to run and heat
the outdoor coil, causing the snow and ice to melt.
During defrost, there may be some steam rise
from the outdoor unit as the warm coil causes
some melted frost to evaporate.
SECTION 2. INSTALLER INFORMATION
GENERAL
Read the following instructions completely
before performing the installation.
These instructions are for the use of qualifi ed
personnel specially trained and experienced
in the installation of this type of equipment
and related system components. Some states
require installation and service personnel to
be licensed. Unqualifi ed individuals should not
attempt to interpret these instructions or install
this equipment.
The single package heat pump is completely
assembled, factory wired, and factory run tested.
The units are ready for easy and immediate
installation.
Use of components other than those specifi ed may invalidate ARI Certifi cation, Code
Agency Listing, and limited warranty on the air
conditioner.
PRE-INSTALLATION CHECK
Before any installation is attempted, the cooling load of the area to be conditioned must be
calculated and a system of the proper capacity
selected. It is recommended that the area to
be conditioned be completely insulated and
vapor sealed.
The installer should comply with all local codes
and regulations which govern the installation
of this type of equipment. Local codes and
regulations take precedence over any recommendations contained in these instructions.
Consult local building codes and the National
Electrical Code (ANSI CI) for special installation
requirements.
The electrical supply should be checked to determine if adequate power is available. If there
is any question concerning the power supply,
contact the local power company.
The single packaged heat pumps are designed
for outdoor installation only and can be readily
connected into the high static duct system of a
home. The only connections needed for installation are the supply and return ducts, the line
voltage, and thermostat wiring. A complete heat
pump system typically consists of:
• Single Package Heat Pump
• Home Fittings Kit
• Unit Fittings Kit
• Thermostat
CAUTION:
To prevent personal injury and/or
equipment damage, check thermostat
manufacturer’s operation of fan relay
circuit when in EMER HEAT. When the
thermostat system switch is in the
EMER HEAT position, the thermostat
must energize the fan relay when the
fan switch is in the AUTO position.
Inspecting Equipment: All units are securely
packed at the time of shipment and, upon arrival,
should be carefully inspected for damage. Claims
for damage (apparent or concealed) should be
fi led immediately with the carrier.
INSTALLATION
1. SELECT THE BEST LOCATION FOR THE
HEAT PUMP UNIT
IMPORTANT: DO NOT PLACE UNIT UNDER
THE HOME.
• Select a solid, level position, preferably on a
concrete slab, slightly above the grade level,
and parallel to the home.
• The hot condenser air must be discharged
up and away from the home, and if possible,
in a direction with the prevailing wind.
• Do not place the unit in a confi ned space.
• If practical, place the heat pump where it and
the ducts will be shaded from the afternoon
sun when the heat load is greatest.
3
Transition Duct Screws
6 ft.
24"
12"
12"
14” Duct Dimples
Figure 2. Minimum Unit Clearances
• Try to select a site for the unit that is as close
as possible to the proposed return grille
location.
• Keep in mind that the length of the supply and
return ducts should be kept to a minimum with
no sharp radiused bends.
2. UNPACK THE UNIT
It is recommended that the unit be unpacked
at the installation site to minimize damage due
to handling.
CAUTION:
Do not tip the unit on its side. Oil may
enter the compressor cylinders and
cause starting trouble. If unit has been
set on its side, restore to upright position and do not run for several hours.
Then run unit for a few seconds. Do this
three or four times with fi ve minutes
between runs.
a. Remove the bands from around the unit.
b. Unfold the top and bottom cap fl anges.
c. Carefully remove the top cap and tube.
3. CLEARANCES
Minimum clearances, as specifi ed in Figure 2,
MUST by maintained from adjacent structures
to provide room for proper servicing and air
circulation.
Supply Air
Figure 3. Return and Supply Air Fittings
Do NOT install unit in a confi ned or recessed
area that will allow discharge air from the unit to
re-circulate into the condenser air inlet, through
the coil.
Service Access Clearance:
Blower access panel side .......................... 24”
Electrical compartment access panel side .. . 12”
Clearance between overhang and top of
unit .........................................................72”
Clearance around condenser coil area to wall
or shrubs (excludes duct panel side) .......... 12”
Supply and Return Air Ducts .......................0”
Duct Connection side ..................................0”
DUCT REQUIREMENTS
The supply duct system, including the number
and type of registers, will have much more effect on the performance of an air conditioning
system then any other factor. The duct must be
suffi ciently large to conduct an adequate amount
of air to each register.
4. INSTALL THE RETURN AND SUPPLY AIR
FITTINGS ON THE UNIT
The supply and return fi ttings are included with
select models. If supplied, the duct fi ttings are
13 SEERReturn Dia. (in)
2 Ton12
2 1/2 Ton14
3 Ton14
3 1/2 Ton14
4 Ton14
Return Air
4
Figure 4. Return Air Box
shipped in the supply duct. They attach to the unit
openings with a fl ange and bead arrangement,
secured with two sheet metal screws. Note: For
ease of access, install fi tting before positioning
unit in fi nal location.
SUPPLY DUCT
Position the supply duct collar, if supplied, so the
edge of the unit opening fi ts between the fl ange
and the bead. Overlap the collar ends keeping the
small screw holes underneath. Align the holes in
the crimped area and install one screw.
Note: It may be necessary to loosen the four
screws that hold the transition duct in order to
install the supply fi tting. Re-tighten when instal-
lation is complete.
Tap collar as necessary to ensure engagement
with unit opening and install second screw.
Tighten fi rst screw. Rotate collar clockwise so
joint is near three o’clock position.
RETURN DUCT
The 12” return duct is installed in the same
manner as the supply duct. If the duct has a 14”
return, follow these instructions.
Align the slots with the holes in the collar and
install two screws. Position the collar over the
opening and align the four notches in the collar
with the four dimples in the panel. Using selfdrilling screws (10-16x.5) attach the collar to the
rear panel. On some models a 14” duct collar is
provided for the return duct.
grille and fi lter (Figure 4) should not be located
in heavy traffi c areas like hallways or center of
rooms. A good spot is in a corner or under a table,
if a minimum two inch clearance is available.
If desired, the return opening can be located
inside a closet with louvered doors that have
an open area equal to or greater than the 12” x
20” grille furnished. The return air grille can be
placed in the wall of a closet and the air ducted
into the fi lter box through a boxed-in area at the
closet fl oor level. Make sure the fi lter is readily
accessible.
After determining the location of the return air
opening, start the installation from under the
home by cutting a small hole in the fi ber underboard to determine how the fl oor joist location
will affect cutting the opening needed for the box.
Floor joists generally are located on 16” centers,
leaving 14-3/8” between joists. After measuring
the return air box (approximately 12-1/4” x 201/4”), cut the hole through the fl oor so that the
box will fi t between the fl oor joists. Care should
be taken when cutting through carpeting to avoid
snags. In most installations it will be necessary to
cut a similar hole in the fi berboard directly under
the hole in the fl oor. However, if the fl oor is more
than ten inches deep, it will only be necessary
to cut a hole for the collar on the return air box
or for the insulated duct.
Set the box into the opening and fasten with
screws or nails. Put the fi lter and return air
grille in place.
6. LOCATING AND INSTALLING THE
SUPPLY DAMPER(S)
When locating the supply damper(s), carefully
check fl oor joists and frame members that could
interfere with the installation of the damper
or fl exible duct. Ideally, the damper should be
located in the bottom of the main duct, forward
of center of the home, at least three feet from
the nearest register. The round supply opening
in the slanted side of the damper should face
AUTOMATIC DAMPER IS CLOSED
WHEN HEAT PUMP IS OFF
5. LOCATING AND INSTALLING THE
RETURN AIR ASSEMBLY
To avoid complications, locate and install the
return air assembly fi rst. The return air box with
Figure 5. Supply Damper
5
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