Whirlpool WGPH45 AM Installation Manual download pdf (Page 5)

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.

■ 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

Rigging Details

To prevent property damage, the unit should remain in an

upright position during all rigging and moving operations.

To facilitate lifting and moving when a crane is used,

place the unit in an adequate cable sling.

WARNING

To prevent property damage, personal injury or death,

ensure the roof has sufficient structural strength to carry

the weight of the unit(s), roof curb, snow loads and water

loads as required by local codes. Consult a structural

engineer to determine the weight capabilities of the roof.

WARNING

To avoid possible personal injury, a safe, flat surface for

service personnel should be provided.

CAUTION

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Whirlpool WGPH45 AM Installation Manual Page 5