Unit Location; Ground Level Preinstallation Details; Rooftop Preinstallation Details; Roof Curb Installations Only - Whirlpool Gold WPH43M Installation Instructions Manual

Close to the wall application assures free, unobstructed air to the
other 2 sides. In more confined application spaces, such as
corners, provide a minimum 10" (25.4 cm) clearance on all air
inlet sides. Allow 18" (45.7 cm) minimum for service access to the
compressor compartment and controls. The top of the unit
should be completely unobstructed. If units are to be located
under an overhang, there should be a minimum of 36" (91.4 cm)
clearance and provisions made to deflect the warm discharge air
out from the overhang.

Unit Location

Consider the affect of outdoor fan noise on conditioned space
and any adjacent occupied space. It is recommended that the
unit be placed so that the condenser air discharge does not blow
toward windows less than 25 ft (7.6 m) away. Consideration
should also be given to shade and unit appearance.
Heat pumps require special location consideration in areas of
heavy snow accumulation and/or areas with prolonged
continuous subfreezing temperatures. Heat pump unit bases
have holes under the outdoor coil to permit drainage of defrost
water accumulation. The unit must be situated to permit free
unobstructed drainage of the defrost water and ice. A minimum
2" (5 cm) clearance under the outdoor coil is required in the
milder climates.

Ground Level Preinstallation Details

The unit should be set on a solid, level foundation—preferably a
concrete slab at least 4" (10.2 cm) thick. The slab should be
above ground level and surrounded by a graveled area for good
drainage. Any slab used as a unit's foundation should not adjoin
the building as it is possible that sound and vibration may be
transmitted to the structure.
Ground Level Installation
A
B
C
A. 48" (121.9 m) minimum C. 36" (91.4 cm) minimum service clearance
B. 12" (30.5 cm) minimum D. 4" (10.2 cm) minimum

Rooftop Preinstallation Details

Ensure that the roof is weather tight and allows proper
drainage of condensation.
Use steel or treated wood beams as unit support for load
distribution.
NOTE: To ensure proper condensate drainage, unit must be
installed in a level position.
4
D
C
B
To avoid possible property damage or personal injury, the
roof must have sufficient structural strength to carry the
weight of the unit(s) and snow or water loads as required by
local codes. Consult a structural engineer to determine the
weight capabilities of the roof.
The unit may be installed directly on wood floors or on Class
A, Class B or Class C roof covering material.
To avoid possible personal injury, a safe, flat surface for
service personnel should be provided.
Rooftop Installation

Roof Curb Installations Only

NOTE: Sufficient structural support must be determined prior to
locating and mounting the curb and package unit.
Curb insulation, cant strips, flashing and general roofing material
are furnished by the contractor.
Curbing must be installed in compliance with the National
Roofing Contractors Association Manual. Construct ductwork
using current industry guidelines. The ductwork must be placed
into the roof curb before mounting the package unit.
Roof Curb Installation