450268-1 www.amdry.com 59
B. USING A MANOMETER

HOW TO USE A MANOMETER

1. With dryer in nonoperating mode, remove plug on the gas valve pressure tap.
2. Install 1/8” N.P.T. fitting supplied with the manometer.
3. Attach plastic tubing to pressure tap fitting.
4. Attach manometer to dryer using magnet.

NOTE: Place manometer in a position so that readings can be taken at eye level.

5. Fill manometer as shown in illustration to the zero level.
6. Start dryer. With burner on take a reading.
a. Read water level at the inner tube. Readings should be taken at eye level.
b. Correct readings should be:
Natural Gas __________________3.5 Inches (8.7 mb) Water Column (W.C.).
Liquid Propane (L.P.) Gas _______10.5 Inches (26.1 mb) Water Column (W.C.).
7. If water column pressure is incorrect, refer to β€œTO ADJUST GAS PRESSURE.”
8. Reverse procedure for removing manometer.