4)HSI (Hot Surface Ignition) 24 VAC Transformer
The HSI transformer is designed to step down the operating voltage of the dryer to 24 VAC to operate the HSI module. This transformer, like all transformers, is two (2) sided:
a)Primary Side
This is the incoming voltage side - 120 VAC, 208 VAC, 240 VAC - of transformer.
b)Secondary Side
This is the step down side - 24 VAC - of the transformer.
WARNING: 208 VAC and 230/240 VAC ARE NOT THE SAME. ALL voltage connections should be checked and confirmed according to the wiring diagram provided with the individual dryer. Any damage done to dryer components due to improper voltage connections will automatically
VOID THE WARRANTY.
IMPORTANT: The ADC Service Department must be contacted prior to any wiring change and/or conversion because, depending on the change/ conversion required, some parts may have to be added, deleted, or changed. When contacting the ADC Service Department they must be given the correct model number and serial number of the dryer(s).
NOTE: Any wiring change(s) and/or conversion(s) should be by a QUALIFIED ELECTRICAL TECHNICIAN.
(1) Transformer Wiring
There are six (6)
(a) For 120 VAC application ONLY;
1 - The BLACK and WHITEwires are used. 2 - The Red and Blue wires are capped off
individually.
(b) For 208 VAC application ONLY;
1 - The BLACK and BLUE wires are used. 2 - The Red and White wires are capped off
individually.
(c) For 240 VAC application ONLY;
1 - The BLACK and RED wires are used.
2 - TheWhite andBlue wires are capped off individually.
There are two (2) ORANGE wires coming from the secondary (step down) side of the transformer;
(d)One (1) ORANGE wire is connected to the GND (ground) termination.
(e)One (1) ORANGE wire supplies the 24 VAC signal for the control and/or HSI system circuit. (Refer to the specific wiring diagram with the dryer for connection point.)
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