Gas Modulation Explanation And Testing - Girard Products GSWH-1 Service Manual

GSWH-1M
Gas Modulation & Winter Use Device Systems Specifications & Testing
GSWH-1M Temperature Dials
The gas modulator temperature
dials may appear the same but
it is crucial that you confirm the
dial is the correct resistance for
the gas modulator control board.
Using the incorrect temperature
dial will cause incorrect voltages
to the gas modulator valve. This
will cause an improper water
temperature.
1K Ohm and 2.2K Ohm Dials
The back of the dial will be
labeled with 1K or 2K2. If the
label is too difficult to read then
you can identify the type of dial
with a resistance check with the
dial in the low position.
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