Specifications

5–8
5.3 Operating Fryers with Thermatron Controllers
Many Decathlon fryers use a solid-state
temperature controller, or Thermatron
®
controller
instead of a computer or basic thermostat. A
Thermatron
®
system incorporates a temperature-
control circuit board, a potentiometer, and a
temperature probe. This system is more accurate
and more reliable than a standard thermostat, and
less expensive than a computer controller.
Thermatron systems are operated with the
following controls:
MAIN POWER SWITCH – connects/disconnects primary power; double-lighted with center
position "OFF". One main switch controls two Thermatron controllers and/or two back-up
thermostats. When the Main Power Switch is in the center position, power is removed from the two
fryers controlled by the Thermatron controllers or back-up thermostats. When the Main Power
Switch pressed to the right, power is supplied to the Thermatron of each fryer. When pressed to the
left, power is supplied to the back-up thermostat of each fryer. The back-up thermostat should be
left in the "OFF" position when not in use (Newer fryers may not have the backup control
option).
Thermatron Temperature Controller
POWER
BOIL OUT
FMKF
N
F
BOIL OUT
F
O
F
O
N
N
F
FILTER
F
F
O
O
F
O
T
U
MAIN POWER
P
F
POWER
O
O
T
A
C
ON OFF ON
B
O
MK
N
O
N
MAIN POWER
U
P
T
O
ON OFF ON
A
C
B
T
Fryer Power Switch: controls power to each
individual fryer, both in Thermatron or
Back-up mode.
Boil-Out Switch: operates only in "Thermatron" mode. When
"ON", this switch bypasses the Thermatron melt-cycle and
allows the water temperature to reach 196°F.
Main Power Switch: connects/disconnects primary power; double-
lighted with center position "OFF". This switch controls two
Thermatron controllers and/or two back-up thermostats.
Filter Power Switch: connects/
disconnects power to filter pump. Fryer
Power Switch should be "OFF" when
filter is in use.
High-Limit Reset Switch: located under
each individual control panel. This
switch must be manually reset if fryer
exceeds high-limit setpoint.
Filter Reset Switch (7-Amp Circuit
Breaker): this switch is inline between
the filter pump and the Filter Power
Switch. Ensure Filter Power Switch is
"OFF" before resetting or replacing.