ADC ML-122 - Manual (Page 24)

24 American Dryer Corporation 450412 - 4
How to Use a Manometer
With dryer in nonoperating mode, remove plug on the gas
valve pressure tap.
Attach plastic tubing to pressure tap. Fitting is supplied
with manometer (refer to illustration).
Attach manometer to dryer using magnet.
NOTE: Place manometer in a position so that readings
can be taken at eye level.
Fill manometer with water, as shown in illustration to the
zero level.
Start dryer. With burner on, take a reading.
Read water level at the inner tube. Readings should be
taken at eye level.
Correct readings should be:
Natural Gas: ______ 3.5 in wc (8.7 mb).
L.P. Gas: _________ 10.5 in wc (26.1 mb).
If water column pressure is incorrect refer to “TO ADJUST
GAS PRESSURE.”
Reverse procedure for removing manometer.
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