Owners Manual

User Manual for CT Freezer / Refrigerator Beverage-Air
Rev. 10/20Beverage-Air16
SEQUENCE OF OPERATIONS CROSS TEMP
The cooler operates based on the air temperature measured by the probe located at the return air.
ON O
COMPONENT OPERATION CONTROLLER ACTION OPERATION CONTROLLER ACTION
COMPRESSOR Compressor turns on
when the air tempera-
ture at the probe is
above the sum of the
set point + 2.5
The Compressor Con-
tact is energized
Compressor turns o
when the air tempera-
ture at probe is equal
to or less than the set
point – 2.5
The Compressor Con-
tact is de-energized
(ERC 112 - Terminal #1) (ERC 112 - Terminal #1)
CONDENSER FAN The Condenser Fan
turns on when the
Compressor is running
The Condenser Fan
is wired directly to
the Compressor, not
through the controller
The Condenser Fan
turns o when the
Compressor is not
running
The Condenser Fan
is wired directly to
the Compressor, not
through the controller
EVAPORATOR FAN The Evaporator Fan
runs continuously.
When the unit is
plugged in the Evapo-
rator Fan will run
The Evaporator Fan
Contact is energized.
The Evaporator Fan
turns o when freezer
enters a defrost cycle.
The Evaporator fan
Contact is deener-
gized.
(ERC 112 - Terminal
#5)
(ERC 112 - Terminal
#5)
DEFROST HEATER The Defrost Heater
will activate on cu-
mulative Compressor
runtime of 6 hours,
and when temperature
drops too low
The Defrost Heater
Contact is energized
When either the de-
frost is not scheduled
or the temperature
at defrost probe has
reached the defrost
termination tempera-
ture.
The Defrost Heater
Contact is de-ener-
gized
(ERC 112 - Terminal
#6)
(ERC 112 - Terminal
#6)
FACE/DOOR HEATERS The Face & Door Heat-
ers turn on when the
Compressor is running
The Door/Face Heater
are wired to the Com-
pressor Contact
The Face & Door
Heaters turn o when
the Compressor is not
running
The Door/Face Heater
are wired to the Com-
pressor Contact
(ERC 112 - Terminal #1) (ERC 112 - Terminal #1)
LIGHT e light will turn
on when the is
pressed (or when the
door is opened with
solid doors)
e Light Contact is
energized
e light will turn
o when the is
pressed (or when the
door is closed with
solid doors)
e Light Contact is
de-energized
(ERC 112 – Terminal
#4)
(ERC 112 – Terminal
#4)
Condition Compressor Condenser
Fan
Evaporator
Fan
Defrost
Heater
Face/Door
Heater
Drain Heater Lights
Cabinet Temp >
Set point + 2.5
ON ON ON OFF ON ON ON or OFF
Cabinet Tem-
perature <= Set
point - 2.5
OFF OFF ON OFF OFF ON ON or OFF
Defrost OFF OFF OFF ON OFF ON ON or OFF