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VHX SERIES STEAMERS - COMPONENT FUNCTION
F24700 (October 2001) Page 12 of 68
COOKING COMPARTMENT CONTROLS
The upper section of the steamer consists of two separate cooking compartments. Each compartment functions
independently with its own set of controls. Power is supplied to the controls only after the steam pressure rises
above the compartment pressure switch setting to close the N.O. contacts.
Ready Light (Green)
............ When lit, indicates steamer is ready to cook.
Cooking Light (Red)
............ When lit, indicates steamer is in a cooking cycle.
Cooking Timer
................. Use to set desired cooking cycle time between 0-60 minutes. When a
timer is set, the steam supply solenoid valve is energized to allow steam
into the cooking compartment but only after the boiler has reached its
operating pressure. Also, energizes the buzzer when time expires.
Buzzer
....................... Signals end of a cook cycle, must be turned off manually.
Door Switch
................... Removes electrical power to the timer. If time is dialed on the cooking
timer and compartments are steaming, removes power to the steam
solenoid valve when the compartment door is opened.
Steam Solenoid Valve
........... When energized, opens to allow steam into the cooking compartment
(normally closed valve).
Compartment Pressure Switch
.... Supplies power to the controls only after the steam pressure rises above
approximately 3 psi to close the compartment pressure switch. The
switch remains closed as long as steam pressure stays above this
pressure.
Manifold Pressure Gauge
........ Indicates the amount of steam pressure in manifold. The intake shut-off
valve should be adjusted so manifold pressure remains at 9 psi with both
compartments on.
Steam Supply Manifold
.......... Main steam supply line from the boiler for each cooking compartment.
Supplies steam up to the steam solenoid valve.
Intake Shut-Off Valve
........... Main steam supply shut-off from the boiler to the steam supply manifold.
This valve should NOT be left fully OPEN to boiler steam supply. See
“INTAKE SHUT-OFF VALVE ADJUSTMENT (STEAM FLOW)" in
“SERVICE PROCEDURES AND ADJUSTMENTS".