American Dryer Corp. AD-400 - Manual (Page 39)

Switch #2 Intermittent Pilot
This switch is "on" for intermittent pilot or "off" for interrupted pilot. We use intermittent pilot so that
the pilot flame stays lit during the entire drying cycle. With interrupted pilot, the pilot flame would go
out once the main flame is established. This is used mainly on oil burners lit by a gas pilot.
Switch #3 Trial for Ignition (TFI) Time
When this switch is "on" a TFI of 10 seconds is set. If it is in the "off' position, the TFI is 5 seconds. The
trial/for/ignition time is the length of time that the pilot is given to light. A 10-second TFI is best for the
dryer.
Switches #4,5,6,7, and 8 Purge Time
Switch #8 is in the "on" position, and switches #5,6, and 7 are in the "off' position. This gives a purge
time of 0 seconds.
8 ZERO
7 120 SEC.
6 60 SEC.
5 30 SEC.
4 15 SEC.
PURGE TIMES
ARE ADDITIVE
3 10 SEC. TFI 5 SEC. TFI
2 INTERMITTENT PILOT
1 RECYCLING
MAN0636
• LED Displays of the Burner Controller Module
Operating Interlock - LED is lit when:
- all safety interlock switches are closed applying a 110 Vac signal to terminal 7 of the burner
controller module.
Operating Interlock - LED is not lit when:
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