5-13
AUTO TRANSFORMER - GAS DRYERS
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
The autotransformer is used in a gas dryer
to step down the incoming voltage source to
120 VAC used by the gas valve circuit and the
control board.
Unplug dryer or disconnect power.
Turn off gas supply to dryer.
See page 4-38 for the procedure to access
the auto transformer
Connect load to terminals LD & LD.
Connect one side of line to L1 terminal.
Connect other side of line to terminal
selected from table below.
TERMINAL
LINE VOLTAGE
50 Hz 60 Hz
HIGH
260 283
226 249
MEDIUM
239 260
208 230
LOW
217 236
189 208
H M L L1
LD LD
118 - 102 v 50 Hz
128 - 111 v 60 Hz
1.
2.
3.
4.
5.
6.
Auto Transformer
Reconnect power to the dryer and test for
proper voltages according to the chart (See
left column).
NOTE: There is a proportional relationship
between the amount of voltage going into
the transformer and the amount of voltage
coming out of the transformer. Higher
voltage in should result in higher voltage out.
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