Whirlpool WGFD293 Instruction Manual download pdf (Page 12)

Vent Termination Clearances

Increased Clearance Configuration

NOTES:

■ Do not use other commercially available “no hub connectors”

due to possible material conflicts.

■ The vent/flue pipe can also be secured using a PVC or ABS

elbow or coupling using the appropriate glue (see “Materials

and Joining Methods”).

■ For nondirect vent installations, a minimum of one 90° elbow

should be installed on the combustion air intake coupling to

guard against inadvertent blockage.

Combustion Air Pipe—Direct Vent Installations

On upflow units, secure the combustion air intake pipe directly to

the air intake coupling. On counterflow units secure the

combustion air intake pipe to the air intake coupling using the

rubber coupling and worm gear hose clamps provided with the

unit. The counterflow rubber coupling allows service removal of

air intake piping internal to the furnace blower compartment.

NOTE: Because of probable material conflicts, do not use other

commercially available “no hub connectors.” The combustion air

intake pipe can also be secured directly to the counterflow unit

air intake pipe coupling.

Combustion Air Pipe—Nondirect Vent Installations

A minimum of one 90° elbow should be installed on the

combustion air intake coupling to guard against inadvertent

blockage.

Standard Connection—Upflow

Standard Connection—Counterflow

A. Nondirect vent and direct vent

vent/flue terminations

B. Nondirect vent—vent/flue

terminations

C. No terminations above walkway

D. 48" (121.9 cm minimum)

E. 12" (30.5 cm) minimum

F. Direct vent—vent/flue

termination

G. Forced air inlet

H. Grade or highest anticipated

snow level

I. 3" (7.6 cm) minimum

J. Less than 10 ft (3 m)

A. Vent pipe

B. 45º long-sweep elbows

A. 90º PVC elbow (nondirect vent only)

B. Combustion air pipe (direct vent

only)

C. Rubber coupling with worm

gear hose clamps

D. Vent/flue pipe

A. 90º PVC elbow (nondirect vent

only)

B. Combustion air pipe (direct vent

only)

C. Rubber couplings with worm

gear hose clamps

D. Vent/flue pipe

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Whirlpool WGFD293 Instruction Manual Page 12

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