SECTION 2. INSTALLER INFORMATION
Pressures Within The System — This equip-
ment contains R-410A refrigerant under high
pressure. Installation or servicing should only
be performed by qualiﬁ ed trained personnel
thoroughly familiar with this type equipment.
This unit uses refrigerant R-410A. DO NOT
under any circumstances use any other re-
frigerant besides R-410A in this unit. Use of
another refrigerant will damage this unit.
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
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 instal-
lation 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
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.
The single package heat pump is completely
assembled, factory wired, and factory run tested.
The units are ready for easy and immediate
Use of components other than those speci-
ﬁ ed may invalidate ARI Certiﬁ cation, Code
Agency Listing, and limited warranty on the air
Before any installation is attempted, the cool-
ing 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
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 recom-
mendations contained in these instructions.
Consult local building codes and the National
Electrical Code (ANSI CI) for special installation
The electrical supply should be checked to de-
termine if adequate power is available. If there
is any question concerning the power supply,
contact the local power company.
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.
1. SELECT THE BEST LOCATION FOR THE
HEAT PUMP UNIT
IMPORTANT: DO NOT PLACE UNIT UNDER
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.
Try to select a site for the unit that is as close
as possible to the proposed return grille
Keep in mind that the length of the supply and
return ducts should be kept to a minimum with
no sharp radiused bends.