Sequence Of Operations Cross Temp - Beverage-Air Cross Temp CT12-12HC-1HS Series Installation And Operating Instructions Manual

User Manual for CT Freezer / Refrigerator

SEQUENCE OF OPERATIONS CROSS TEMP

The cooler operates based on the air temperature measured by the probe located at the return air.
COMPONENT
COMPRESSOR
CONDENSER FAN
EVAPORATOR FAN
DEFROST HEATER
FACE/DOOR HEATERS The Face & Door Heat-
LIGHT
Condition Compressor
Cabinet Temp > ON
Set point + 2.5
Cabinet Tem- OFF
perature <= Set
point - 2.5
Defrost OFF
16
ON
OPERATION
Compressor turns on
when the air tempera-
ture at the probe is
above the sum of the
set point + 2.5
The Condenser Fan
turns on when the
Compressor is running
The Evaporator Fan
runs continuously.
When the unit is
plugged in the Evapo-
rator Fan will run
The Defrost Heater
will activate on cu-
mulative Compressor
runtime of 6 hours,
and when temperature
drops too low
ers turn on when the
Compressor is running
The light will turn
on when the is
pressed (or when the
door is opened with
solid doors)
Condenser
Fan
ON
OFF
OFF
CONTROLLER ACTION OPERATION
The Compressor Con-
tact is energized
(ERC 112 - Terminal #1)
The Condenser Fan
is wired directly to
the Compressor, not
through the controller
The Evaporator Fan
Contact is energized.
(ERC 112 - Terminal
#5)
The Defrost Heater
Contact is energized
(ERC 112 - Terminal
#6)
The Door/Face Heater
are wired to the Com-
pressor Contact
(ERC 112 - Terminal #1)
The Light Contact is
energized
(ERC 112 – Terminal
#4)
Evaporator Defrost Face/Door
Fan Heater Heater
ON OFF ON
ON OFF OFF
OFF ON OFF
Beverage-Air
Beverage-Air
Off
Compressor turns off
when the air tempera-
ture at probe is equal
to or less than the set
point – 2.5
The Condenser Fan
turns off when the
Compressor is not
running
The Evaporator Fan
turns off when freezer
enters a defrost cycle.
When either the de-
frost is not scheduled
or the temperature
at defrost probe has
reached the defrost
termination tempera-
ture.
The Face & Door
Heaters turn off when
the Compressor is not
running
The light will turn
off when the is
pressed (or when the
door is closed with
solid doors)
Drain Heater
ON
ON
ON
CONTROLLER ACTION
The Compressor Con-
tact is de-energized
(ERC 112 - Terminal #1)
The Condenser Fan
is wired directly to
the Compressor, not
through the controller
The Evaporator fan
Contact is deener-
gized.
(ERC 112 - Terminal
#5)
The Defrost Heater
Contact is de-ener-
gized
(ERC 112 - Terminal
#6)
The Door/Face Heater
are wired to the Com-
pressor Contact
(ERC 112 - Terminal #1)
The Light Contact is
de-energized
(ERC 112 – Terminal
#4)
Lights
ON or OFF
ON or OFF
ON or OFF
Rev. 06/23