Lennox International Inc F8AUH manual Filters

Models: F8AUH

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Filters

6 - White Rodgers 36E Gas Valve - Switch gas valve lever to OFF. do not force. See figure 2.

Honeywell VR8205 Gas Valve - Turn knob on gas valve

clockwiseManual background to OFF. Do not force. See figure 3.

WHITE RODGERS 36E SERIES GAS VALVE

GAS VALVE SHOWN IN OFF POSITION

FIGURE 2

HONEYWELL VR8205 SERIES GAS VALVE

ON

OFF

GAS VALVE SHOWN IN OFF POSITION

FIGURE 3

7 - Wait five (5) minutes to clear out any gas. If you then smell gas, STOP! Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions. If you do not smell gas go to next step.

8 - White Rodgers 36E Gas Valve - Switch gas valve lever to ON. Do not force.

Honeywell VR8205 Gas Valve - Turn knob on gas

valve counterclockwiseManual background to ON. Do not force. 9 - Replace control access panel.

10 - Turn on all electrical power to unit.

11 - Set thermostat to desired setting.

NOTE – When unit is initially started, steps 1 through 11 may need to be repeated to purge air from gas line.

12 - If the appliance still will not operate, follow the instructions •To Turn Off Gas To Unit" and call your service technician or gas supplier.

To Turn Off Gas To Unit

 

1 -

Set thermostat to lowest setting.

 

2 -

Turn off all electrical power to unit if service is to be

 

performed.

 

3 -

Remove control access panel.

 

4 -

Switch lever on White Rodgers gas valve to OFF; turn

 

knob on Honeywell valve clockwise

to OFF. Do not

 

force.

 

5 -

Replace control access panel.

 

Filters

All F8AUH filters must be installed external to the unit. They can be ordered as an optional accessory item. Filters should be inspected monthly. Clean or replace the filters when necessary to ensure proper furnace operation. See table 1 for filter sizes. Replacement fil6 ters for F8AUH-045/060/075 units must have a mini6 mum velocity rating of 400 FPM. Replacement filters for F8AUH-100/120 units require a minimum velocity rating of 625 FPM. Figures 4 and 5 show possible filter locations.

 

TABLE 1

 

 

Model Number

Filter Size - inches (mm)

 

 

F8AUH-045/060/075

16 X 20 X 1 (406 X 508 X 25)

 

 

F8AUH-100/120

20 X 20 X 1 (508 X 508 X 25)

 

 

UPFLOW FURNACE

BOTTOM RETURN AIR

FIGURE 4

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Lennox International Inc F8AUH manual Filters