ADC ADG-530, Техническое руководство, Страница: 14 / 18

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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) s hould be by a QUALIFIED
ELECTRICAL TECHNICIAN .
(1) Transformer Wiring
There are six (6) color-coded wires coming from the 24 VAC Transformer. There
are four (4) wires coming from the primary (incoming) voltage side of the trans-
former. Their application and color-coding are as follows:
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.)
(a) For 120 VAC application ONLY;
1 - The BLACK and WHITE wires 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 - The White and Blue wires are capped off
individually.