Whirlpool WGPH45 AM Installation Manual download pdf (Page 5)

Place Heat Pump or Air Conditioning Unit in

Final Location

IMPORTANT: If you are using a bottom discharge with the roof

curb, the ductwork should be attached to the curb prior to the

installation of the unit.

Lower the unit carefully onto the roof mounting curb. While you

are rigging the unit, the center of gravity will cause the condenser

end of the unit to be lower than the supply air end.

Rigging

Connect Condensate Drain

The condensate drain connection of the evaporator is a half

coupling of ³⁄₄" N.P.T. A ³⁄₄" drain line with trap must be installed

on all applications to avoid accumulation of condensate.

Condensate Drain Connection

■ Install the condensate drain trap as shown. Use a ³⁄₄" (1.9 cm)

NPT drain connection size or larger.

■ An external trap must be installed for proper condensate

drainage.

■ Unit must be level or slightly inclined toward drain.

Install Ductwork

IMPORTANT:

■ Install ductwork in accordance with NFPA 90B and any local

codes.

■ When the unit is installed so that the supply ducts carry air

circulated by the unit to areas outside the space containing

the unit, the return air shall be handled by a duct or ducts

sealed to the unit casing and terminated outsides the space

containing the unit.

■ If there is no complete return air duct system, the return air

connection must be sealed to the unit casing and run full size

to a location outside the utility room or space housing the unit

to avoid a negative pressure on the venting system.

Filters

Filters are not provided with unit, and must be supplied and

installed in the return duct system by the installer. A field installed

filter grille is recommended for easy and convenient access to

the filters for periodic inspection and cleaning. Filters must have

adequate face area for the rated quantity of the unit. See the Air

Delivery Table for the recommended filter size.

Air Delivery Table

Goodman 109

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

Goodman 110

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

Goodman 111

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

service personnel should be provided.

CAUTION

Placeholder for Rigging art

A. Drain connection

B. 2" (5.1 cm) minimum

C. 3" (7.6 cm) minimum

D. Positive liquid seal (required)

E. Flexible tubing, hose or pipe

F. U ni t

Minimum Filter Size

Nominal Size—in. (cm) Nominal Area—sq ft (cm

)

10 x 20 (25.4 x 50.8) 1.4 (1,301)

14 x 20 (35.6 x 50.8) 1.9 (1,765)

14 x 25 (35.6 x 63.5) 2.4 (2,230)

15 x 20 (38.1 x 50.8) 2.1 (1,951)

16 x 20 (40.6 x 50.8) 2.2 (2,044)

16 x 25 (40.6 x 63.5) 2.8 (2,601)

20 x 20 (50.8 x 50.8) 2.8 (2,601)

20 x 25 (50.8 x 63.5) 3.5 (3,252)

25 x 25 (63.5 x 63.5) 4.3 (3,995)

500 1,000 1,500 2,000 2,500 3,000 3,500

(6,503)

Disposable Filter

Permanent Filter

Nominal Filter Area

sq ft (cm

)

(5,574)

(4,645)

(3,716)

(2,787)

(1,858)

Airflow - SCFM

1 2 3 4 5 6 7 8 9 10 ... 19 20

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Whirlpool WGPH45 AM Installation Manual Page 5

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