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Step 3 — Locate Unit
Locate the unit in an indoor area that allows easy removal of the
filter and access panels, and has enough room for service
personnel to perform maintenance or repair. Provide sufficient
room to make fluid, electrical, and duct connection(s). If the unit is
located in a confined space such as a closet, provisions must be
made for return air to freely enter the space.
Unit condensate drains are not internally trapped. Allow room
below the unit base for horizontal models for an adequate
condensate trap.
These units are not approved for outdoor installation; therefore,
they must be installed inside the structure being conditioned. Do
not locate units in areas that are subject to freezing. Units must be
installed in conditioned space that is not subject to extremes of
temperature or humidity to avoid cabinet sweating and/or
equipment damage.
IMPORTANT: Care must be taken to prevent the introduction of
dust, pain, debris, or chemicals into the unit, which can cause
damage to the unit, delay start-up, and may impact unit
longevity.
Do not use units for temporary heating, air conditioning or
ventilation during construction or remodeling, especially when
plastering, sanding or painting or when replacing carpet or
flooring. Dust and debris can clog the coil and blower. Chemical
vapors can lead to formicary corrosion and damage the coil.
Ensure adequate ventilation and debris collection during
construction or remodeling.
PROTECTION
Once the units are properly positioned on the jobsite, cover them
with either a shipping carton, vinyl film, or an equivalent
protective covering. Cap open ends of pipes stored on the jobsite.
This precaution is especially important in areas where painting,
plastering, or spraying of fireproof material, etc. is not yet
complete. Foreign material that accumulates within the units can
prevent proper start-up and require costly clean-up operations.
Before installing any of the system components, be sure to
examine each pipe, fitting, and valve, and remove any dirt or
foreign material found in or on these components.
Step 4 — Mount the Unit
DUCT FLANGES
The unit heat pumps feature foldout return and supply air duct
flanges. These fold-out flanges allow the heat pumps to more
easily fit through doorways and other tight spaces, and also
prevent damage in shipping and handling.
It is recommended that all fold-out flanges be folded out once the
heat pump is installed to ensure that return and supply airflow is
not obstructed. These flanges can be easily folded using standard
or duckbill pliers. Once folded out these flanges can be used to
support light ductwork loads.
HORIZONTAL UNITS (50PCH)
While horizontal units may be installed on any level surface strong
enough to hold their weight, they are typically suspended above a
ceiling by threaded rods. All horizontal units come with a Hanging
Bracket Kit to facilitate suspended unit mounting. Hanging
brackets are installed as shown in Fig. 3.
HANGING BRACKETS LOCATIONS
Fig. 3 — Hanging Bracket Locations
The hanging bracket kit includes the following:
•
(5) Brackets
•
(5) Rubber vibration isolators
•
(8) Screws #10 x 1/2 in.
•
(10) Bolts 1/4 – 28 x 1/2 in. hex bolt (not used on this
model)
The following additional materials are needed and must be field
supplied:
•
Threaded rod (3/8 in. maximum diameter)
•
Hex nuts
•
Washers (1-3/4 in. minimum O.D.)
Hanging Bracket Installation
1.
Remove and discard factory-provided screws from location
where hanging brackets will be installed. (See Fig. 4.)
Fig. 4 — Removing Factory Screws
2.
Mount 4 brackets to unit corner post using the bolts provided
in the kit, as shown in Fig. 5. DO NOT re-use the screws
removed from the unit during Step 1 to mount the hanging
brackets on the unit.
Fig. 5 — Mounting Brackets
7
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