– 25 –
GAS PRESSURE ADJUSTMENT
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
Accurate gas pressure adjustments can only be
made with the gas on and the burner lit. If the
incoming line pressure to the valve is less than the
minimum stated, then the manifold pressure cannot
be set correctly.
1. Turn gas supply off at manual shutoff valve.
2. Remove the right side panel as outlined
under Covers and Panels in Removal and
Replacement of Parts.
3. Remove the plug from the manifold pressure
port.
4. Install hose barb adapter and attach
manometer tube.
5. Remove adjustment screw cap from the gas
valve and turn gas supply to the oven back
on.
The following steps require power
to be applied to the unit during test. Use extreme
caution at all times.
6. Plug the unit in and turn the power switch ON.
7. Set the temperature controller to its highest
setting and allow burner to ignite. The burner
must be lit during test and adjustment.
8. Turn the set screw to obtain the proper gas
pressure (clockwise = pressure increase;
counterclockwise = pressure decrease).
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