Cooking Compartment; Intake Shut-Off Valve Adjustment (Steam Flow); Door Sealing Adjustment - Vulcan-Hart MHB24G Service Manual

VHX SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS

COOKING COMPARTMENT

NOTE: For access to compartment controls,
remove the right side compartment panel.

Intake Shut-Off Valve Adjustment (Steam Flow)

1. With the right side compartment panel
removed, open the intake shut-off valve
completely.
2. If the steamer ready light is on, then proceed to
step 4.
3. If the boiler is off, then turn main power switch
ON and allow boiler to heat up until steamer
ready light comes on. Allow boiler to cycle 2 to
3 times, then proceed to step 4.
4. Turn both cooking timers on.
5. Monitor the boiler until heat source turns off.
6. At that time, adjust the intake shut-off valve
until the manifold pressure gauge reads 9 ±1
psi. The valve setting should be made while the
boiler pressure is at the upper cycling limit.
7. Monitor gauge reading 1 to 2 cycles to ensure
pressure is set correctly.
8. Once the valve is set, turn both cooking timers
off and reinstall right side compartment panel.

Door Sealing Adjustment

1. Check the door gasket quality. If damaged or
worn, replace as outlined in "REMOVAL" under
"COOKING COMPARTMENT DOOR(S)".
2. Loosen screws until the screw heads no longer
touch the gasket plate.
3. Tighten screws until screw head touches gasket
plate and at that point begin counting turns.
4. Tighten all screws approximately two turns.
5. Close the door and check for proper operation.
A. If necessary, tighten all screws an
additional 1/2 turn and repeat step 5.
6. Repeat step 5 until the door closes properly
and no steam leaks are seen around the gasket
seal.
Page 39 of 68 F24700 (October 2001)