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ER SERIES FRYER SERVICE MANUAL SUPPLEMENT - ELECTRICAL OPERATION
NOTE: Refer to "SCHEMATIC
TSP1569C" under "SCHEMATIC
DIAGRAMS".
B.
Control cycles output at time intervals of
30 seconds OFF, then 2 seconds ON (heat
light ON).
Shortening temperature reaches 135 F.
4.
A.
Melt cycle is automatically over-ridden.
NOTE: The Fry/Melt switch should remain in
the "Melt" position.
B.
Control uses thermistor input to cycle the
output at terminal 7.
5.
Shortening reaches set point temperature.
A.
Control removes output from pin 7.
1)
2CON and 4CON are de-energized
and power is removed from the
heating elements.
2)
Heat light goes out.
6.
Control cycles the output at terminal 7, on the
vat temperature.
Computer Control, Full Vat
Refer to schematic diagram's TSP1571C for "Fryer
Controls" operation and TSP1587 "Kleenscreen
Filtering system" operation.
FRY CYCLE - LIQUID FRYING OIL
NOTE: If using solid shortening, the computer
control should be programmed to use the MELT
CYCLE. In the MELT CYCLE, the computer will
"cycle" the heaters ON/OFF in short intervals to
gradually heat and liquify the shortening until it
reaches a temperature of 135°F.The computer then
resumes normal operation as described under FRY
CYCLE.
1.
Conditions.
A.
Fryer connected to correct supply voltage
(separate connections are required for
each section of the battery).
1)
208, 240 or 480VAC - power for
heating elements.
2)
208 or 240VAC models - Step down
transformer(s) provide power for the
fryer controls, basket lift(s) if
installed, and the Kleenscreen
filtering controls.
3)
480VAC models - A separate
120VAC connection is used along
with step down transformer(s) to
provide power for the fryer controls,
basket lift(s) if installed, and the
Kleenscreen filtering controls.
4)
B.
24VAC transformer 2T energized.
1)
2)
NOTE: Pin 12 on the main harness is used to
indicate to the computer the type of fryer (full
or split vat) the computer is installed in. If the
fryer is a full vat, pin 12 is tied to 24 VAC
ground. If the fryer is a split vat, pin 12 is tied
to 24 VAC.
C.
Fryer properly grounded.
D.
Internal fryer circuit breakers ON.
NOTE: 208 and 240VAC models at 21 and 24
KW only.
E.
Power switch to the fryer section controls
in the OFF position.
F.
Tilt switch contacts CLOSED (N.O. - held
CLOSED with heating elements down).
G.
Second high limit thermostat CLOSED.
H.
Frying oil at the proper level in vat and
below 300°F.
I.
Computer control is setup properly and
ready to use.
2.
Press power ON switch.
A.
12VAC transformer 1T energized.
1)
B.
Computer control powers ON, initializes
and performs a diagnostic self check.
NOTE: If the control passes self check, then
the outputs are energized and operation
sequence continues. If control does not pass
self test then CALL SERVICE or MICRO FAIL
will display. Refer to "COMPUTER CONTROL
BOARD DIAGNOSTICS" under "SERVICE
PROCEDURES AND ADJUSTMENTS".
1)
Page 11 of 56
All models require a separate
120VAC connection for the pump
motor.
Power to pins 3, 4, 5, 6, 11, and 17
(control system main input) on
computer main harness.
24 VAC ground to pins 9, 12, and 13
(control system main input GND).
Computer power supply board PS-1 is
energized and a (+) 12VDC signal is
sent to pin 23 on the computer main
harness.
R1 control relay, 1CON and 3CON
will energize.
a.
R1 relay energized, NO contacts
CLOSE and supply power to pin
1 on computer main harness.
F24696 (May 2001)
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