Sequence Of Operation - Vulcan-Hart CEF40 Service Manual

Item Number

SEQUENCE OF OPERATION

1. Conditions
• Fryer connected to correct supply voltage
and is properly grounded.
• Power switch off.
• Shortening at proper level in fry tank.
• MELT switch set to type of shortening in
use.
• Manual drain valve closed.
• Tilt switch contacts closed.
• High limit switch closed.
2. Set power switch to ON.
A. Supply voltage supplied to power contactor
coil via high temperature limit and tilt switch.
B. Supply voltage provided to transformer.
C. Transfromer supplies power to cooking
control via drain switch.
3. Press START switch.
A. If shortening temperature is below set
point,T5 output on controller sends 24VAC
to coil on heat relay via wire 56.
B. Heat relay is energized and sends power to
heat contactor coil and elements are
powered.
4. Shortening reaches set temperature.
A. Controller de-activates 24 VAC output from
T5 via wire 56 to heat relay coil.
B. Heat relay coil is denergized, power is cut to
heat contactor coil and power is removed
from elements.
CEF40/75 FRYER - ELECTRICAL OPERATION
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Component
START Rocker Switch
ON/OFF Rocker Switch
MELT Rocker Switch
HEATING LED
Control Knob
POWER LED
Control Board
24V Relay
C. If temperature is below 135 degrees, melt
sequence will begin. Heating elements will
cycle off and on in timed intervals (according
to MELT switch setting) until shortening
temperature surpasses 135°F.
5. Cooking control cycles heat output on shortening
temperature until one of following occurs:
• Power switch is turned off.
• Heating elements are raised.
• Over-temperature condition occurs.
6. Over-temperature condition / operation.
A. Shortening temperature exceeds 460°F.
B. High limit switch opens.
C. Contactors de-energize.
D. Power is removed from heating elements.
E. Contactors remain de-energized until:
• Shortening temperature drops below
415°F.
• High limit switch manual reset button is
pushed.
• Start switch is pressed.
F45657 (0517)