Specifications

ManualsBrandsWhirlpool ManualsFurnaceWGFDU

Complete Installation

IMPORTANT: Do not use this furnace if any part has been under

water. Immediately call a qualified person to inspect the furnace

and to replace any part of the control system and gas control

which has been under water.

1. Check that you have all of your tools.

2. Dispose of/recycle all packaging materials.

3. Check the furnace in its final location. Be sure the vent is not

blocked.

Measure Temperature Rise

1. Adjust the room thermostat to the highest temperature

setting possible.

2. After 20 minutes of heating operation, measure the furnace

temperature rise. Take air temperature readings in both the

return air ducts and the heated air ducts (about 72" [1.8 m]

from the furnace where they will not be affected by radiant

heat) as shown.

NOTE: If more than one run of return or heated air ducts are

used, air temperature measurements should be taken in each

duct. These measurements can be converted to an average

to obtain the temperature rise of the whole system.

3. If furnace doesn't maintain temperature rise within the range

shown on the furnace rating plate, adjust the blower speed.

Adjust Blower Speed

NOTE:

See the wiring diagrams in the “Troubleshooting” section

while performing the following procedure.

1. Disconnect power.

2. For heating speed, check the temperature rise and make the

necessary adjustments to the blower speed tap. See the

wiring diagrams in the “Troubleshooting” section.

3. Reconnect power.

4. Recheck the temperature rise. Repeat the procedure as

necessary to achieve optimum temperature rise.

5. If the furnace does not begin to heat the room, see the

“Troubleshooting” section.

Shut Down

If the construction will continue or the furnace will not be used for

a period of time, follow the shut down procedure.

1. Set the thermostat control(s) to the lowest setting.

2. Disconnect power.

3. Remove burner access panel.

4. Turn off the gas supply at the manual gas shutoff valve.

5. Replace the burner access panel.

A. Measure return air here.

B. Warm air

C. Measure supply temperature here.

D. Return air

WARNING

Electrical Shock Hazard

Disconnect power before servicing.

Replace all parts and panels before operating.

Failure to do so can result in death or electrical shock.