American Dryer Corp ADG-530 technical manual VAC Transformer

(1)Recovery from LOCKOUT requires a manual reset by either resetting the thermostat or removing the 24 VAC from the HSI module for a period of five

(5)seconds.

(2)If the microprocessor (computer) is still calling for heat after one (1) hour, the HSI module will automatically reset and attempt to ignite the burner again.

2)Flame Failure Reignition

a)If the established flame signal is lost while the burner is operating, the HSI module will respond within 0.8 seconds. The gas valve is de-energized, the HSI module resets and starts a new ignition sequence in an attempt to relight the burner. If the burner does not light, the HSI module will de-energize the gas valve. The HSI module will make two (2) more attempts to relight the burner. If the burner does not relight, the HSI module will go into LOCKOUT. If flame is reestablished, normal operation resumes.

IMPORTANT: The HSI MODULE is a precision instrument, and should be handled carefully. ROUGH HANDLING or DISTORTING COMPONENTS COULD CAUSE THE MODULE TO MALFUNCTION.

WARNING: THE HSI MODULE IS NOT FIELD REPAIRABLE.

NOTE: To reset the HSI MODULE if it is in the LOCKOUT MODE, open and close the main door then restart the dryer. If the module repeatedly goes into LOCKOUT, refer to the TROUBLESHOOTING SECTION of this manual.

b)The 24 VAC TRANSFORMER is designed to step down the operating (primary) voltage of the dryer from 120 VAC, 208 VAC, or 240 VAC to the 24 VAC (secondary voltage) which is necessary to operate the HSI system and in some cases the controls of the dryer.

The 24 VAC TRANSFORMER has multi-primary taps which allow for one (1)trans- former to be used for any voltage application including...120 volt, 208 volt, or 240 volt. Refer to the SERVICE INFORMATION SECTION of this manual for specific transformer/wiring termination information.

24 VAC Transformer

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