Vulcan-Hart VL3GSS, VL3GMS, VL2GMS, VL3GAS, VL2GAS, VL2GSS, VL3GPS, VL2GPS Cooking Compartment Controls

VL SERIES STEAMERS - GENERAL

COOKING COMPARTMENT CONTROLS

The top half of the steamer consists of two to three separate cooking compartments depending on the model. Each compartment functions independently with its own set of controls. Power is supplied to the controls through the compartment power switch and the cooking timer control micro switch contacts. Prevent and Automatic models have a load compensating thermal switch that prevents the controls from receiving power until the compartment reaches 180°F to close the switch.

Compartment Power Switch	Supplies power to the cooking compartment controls.
Cooking Light (Red)	When lit, indicates steamer is in a cooking cycle. (All models except
	manual)
Cooking Timer	Use to set desired cooking cycle time between 0-60 minutes. Energizes
	the buzzer when time expires (All models except manual). On Prevent
	models, also de-energizes the steam exhaust solenoid valve one minute
	before the end of a cook cycle to allow compartment venting.
Buzzer	Signals end of a cook cycle, must be turned off manually. (All models
	except manual)
Steam Exhaust Solenoid Valve . . .	A normally open valve that allows full compartment venting of air and
	condensate up to 180°F durin g compartment heat up and “limited free
	venting” after energized by the closing of the thermal switch. The valve
	remains closed to allow compartment pressurization to 6 psi until one
	minute before the end of a cook cycle at which point the timer control
	micro switch contacts (SW2) change state and de-energize the valve to
	vent the compartment of pressure and steam. (prevent models)
Steam Header Inlet (manifold) . . . .	Main steam supply line from the boiler for each cooking compartment.
	Supplies steam to the manual steam gate valves.
Compartment Pressure Gauge . . . .	Indicates the amount of steam pressure in cooking compartments.
Steam Control Arm Solenoid	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)
Thermal Switch
(Load Compensator)	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)
Steam Gate Valves	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.
Steam Trap (Condenser)	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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