Electrical Operation; Component Function; Component Location - Vulcan-Hart VPX3 Service Manual

Buzzer . . . . . . . . . . . . . . . . . . Signals end of a "cook" cycle when cooking time expires.
Contactor . . . . . . . . . . . . . . . Supplies line voltage to heating element assembly.
Relay R1 . . . . . . . . . . . . . . . . Supplies power to temperature control.
Transformer . . . . . . . . . . . . . Provides 240V to the control circuit (480V only).
Heater Light (green) . . . . . . Indicates steamer is heating.
Low Water Light (red) . . . . . Indicates additional water is required in cooking compartment.
Cooking Mode Switch
(with pilot lights) . . . . . . . . . Supplies 240V to the control circuit. Two internal "pilot" lights indicate the
Door Switch . . . . . . . . . . . . . Removes control circuit power from steamer when door is opened.
High Limit
Thermostat . . . . . . . . . . . . . . Protects steamer by removing control circuit power if the heating element
Temperature Control . . . . . Monitors temperature probe and cycles power to heater contactor for steam
Standby Thermostat . . . . . . Maintains steamer at a standby temperature of 168°F (+5/-8) when "cook" timer
Timer . . . . . . . . . . . . . . . . . . . Counts "cook" time of product when time is dialed and energizes buzzer when
Temperature Probe . . . . . . . Senses cooking compartment temperature and sends a corresponding DC

COMPONENT LOCATION

F25111 (March 2002)
VPX SERIES STEAMER - ELECTRICAL OPERATION

ELECTRICAL OPERATION

COMPONENT FUNCTION

cooking mode selected. Timed mode is amber; Continuous mode is red.
assembly temperature goes above 350°F (+/-15; 50°F differential).
generation.
is off (timed mode only).
time expires. To silence buzzer, dial must be turned to off.
voltage back to the temperature control (J-type thermocouple).
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