Vulcan-Hart VL Series Service Manual page 14

VL BOILER BASE SERIES CONVECTION STEAMERS - GENERAL
Steam Control Arm
Solenoid . . . . . . . . . . . . . .
Thermal Switch (Load
Compensator) . . . . . . . .
Steam Gate Valves . . .
Steam Trap
(Condenser) . . . . . . . . . .
F24650 Rev. A (1017)
When energized, engages the lift arm (plunger) to raise the steam control arm off of the
catch, allowing it to return to its rear position. This closes the steam inlet gate valve and
opens the steam exhaust gate valve. (Prevent, automatic and standard models.)
Controls power to the preheat cycle components. Turns the cooking light on, energizes
the steam exhaust solenoid valve and energizes the cooking timer motor to start timing,
after the compartment reaches 180°F. (Prevent and automatic models.)
Manual valves actuated by the steam control arm. Allows steam to flow into the cooking
compartment through the inlet steam gate valve when the arm is in a forward position
and exhaust the steam through the exhaust steam gate valve when the arm is at the rear.
Prevent models use a steam exhaust solenoid valve to exhaust the steam and a single
steam gate valve as the steam inlet. The automatic, standard and manual models use
one steam gate valve to exhaust the steam and one additional steam gate valve as the
steam inlet.
Exhausts air and condensate from compartment during preheat until the compartment
temperature reaches approximately 180°F. The bellows then close, stopping the exhaust.
(All models except prevent.)
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