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ADJUSTMENTS
PRESSURE SWITCH ADJUSTMENTS
With the venter air fl ow set and the appliance operating
at the best operating effi
ciency, adjust the pressure
switch by rotating the adjustment screw clockwise until
the burner shuts off , then rotate the adjustment screw
counterclockwise until the burner fi res. Rotate the
adjustment screw an additional
1
⁄
4
turn counterclockwise
to ensure proper switch setting.
(See Figure 6)
POST PURGE TIMING ADJUSTMENT
To adjust the post purge time, refer to
Figures 7 & 8.
For timer that looks like Figure 7: Rotate the timer
adjustment on the timer clockwise to increase the
operation time. To decrease the operation time,
rotate the timer adjustment counterclockwise.
For timer that looks like Figure 8: Rotate the
timer adjustment on the timer counterclockwise
to increase the operation time. To decrease
the operation time, rotate the timer adjustment
clockwise.
*Typical post purge time should be between 3 to
5 min.
Figure 6
Figure 7
Figure 8
