Vulcan-Hart ERC50, Руководство по обслуживанию

Страница: 28 / 48

ER SERIES ELECTRIC FRYERS - ELECTRICAL OPERATION
F35613 (September 2003) Page 28 of 48
A. If shortening reaches 415°F or higher (1
st
high limit), the cooking control de-
activates the heat demand and basket lift
outputs, cooking timers are cancelled (if
active), keypad is disabled, display
indicates HI, and the electronic alarm will
sound continuously.
Turn power switch off to silence the alarm.
Normal operation resumes when
temperature drops below 415
/
F.
B. If shortening reaches 460°F, the high limit
thermostat opens (2
nd high limit), 1CON
and 3CON are de-energized and power is
removed from heating elements.
1) 1CON and 3CON remain de-
energized until the shortening
temperature drops below 415
/
F,
manual reset button is pressed and
power switch is turned on.
Filtering System
The filter valve handle and the discard valve handle
are connected to a mechanical valve and switch
assembly to route the flow of shortening in the
filtering system and supply power to the pump
motor.
NOTE: The computer control contains a program
feature that allows the operator to program a
specific number of timed cooking cycles to complete
then alert the operator to filter the shortening.
When the actual cooking count reaches the filter
count setting, FILTER will flash in the right display
when fryer is idle. Normal fryer operation continues
without a cooking lockout. This feature can also be
disabled.
Refer to Installation & Operation manual for specific
instructions on filtering.
1. Conditions
A. Fryer connected to correct supply voltage
and is properly grounded.
NOTE: Separate connections are required for
the fryer controls and the filtering system
controls.
B. Power switch to the fryer section off.
C. Shortening between 300
/
F and 350
/
F.
D. Filter drawer assembly installed properly.
E. Filter power switch off.
F. Filter valve handle (red) retracted.
1) Filter valve switch N.O. contacts
open.
G. Discard valve handle (white) retracted.
1) Discard valve switch N.O. contacts
open.
NOTE: On computer control fryer’s, the control
should be setup properly and ready to use.
2. Turn power switch on, to the fryer section to be
filtered.
3. Set cooking control between 300
/
F (minimum)
and 350
/
F (maximum).
NOTE: Shortening should not be filtered outside of
this temperature range. At lower temperatures the
shortening is thicker which may increase filtering
time and place a greater load on the pump. At
higher shortening temperatures, the pump seal life
is decreased.
A. Allow shortening to cycle at set
temperature for approximately 10 minutes.
NOTE: If using solid shortening, once it has
melted, stir the shortening to eliminate any
solid shortening in cold zone of the fry tank.
4. Solid State Control:
A. Turn power switch off, to the fryer section
to be filtered.
B. Open the manual drain valve to the fryer
section in need of filtering and drain the
shortening into filter tank.
NOTE: If using solid shortening, allow hot
shortening to stand in filter tank for
approximately 6 minutes prior to filtering.
C. Turn filter power switch on.
1) Switch pilot light comes on.
D. Extend filter valve handle of the same
fryer section.
1) Filter valve switch N.O. contacts
close.
a. Power supplied to pump motor.
E. Pump motor circulates shortening through
filter until power is removed.
F. When filtering process is completed, close
the manual drain valve to the fryer section
and allow the fry tank to refill.
G. When all filtered shortening is returned to
the fryer, retract the filter valve handle.
1) Power is removed from pump motor.
H. Turn filter power switch off.
1) Switch pilot light goes out.