User Manual for BB Refrigerators
Beverage-Air
Rev. 06/20
Beverage-Air
16
SEQUENCE OF OPERATIONS REFRIGERATOR
The refrigerator operates based on the air temperature measured by the probe located at the return air.
ON
OFF
COMPONENT
OPERATION
CONTROLLER ACTION
OPERATION
CONTROLLER ACTION
COMPRESSOR
Compressor turns
on when the air
temperature at the
probe is above the
sum of the set point
+2
The Compressor
Contact is energized
Compressor turns
off when the air
temperature at probe is
equal to or less than the
set point -2
The Compressor
Contact 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 off 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 in
refrigerators. When
the unit is plugged
in, the Evaporator
Fan will run.
The Evaporator Fan is
connected directly to
incoming power, not
through the controller.
The Evaporator Fan runs
continuously. When the
unit is plugged in, The
Evaporator Fan will run.
The Evaporator Fan is
connected directly to
incoming power, not
through the controller.
LIGHT
The light will turn on
when the
is
pressed (or when the
door is opened with
solid doors)
The Light Contact is
energized
The light will turn off
when the
is
pressed (or when the
door is closed with solid
doors)
The Light Contact is
de-energized
(ERC 112 – Terminal
#4)
(ERC 112 – Terminal
#4)
Condition
Compr
essor
Condenser F
an
Ev
apora
tor
Fa
n
Lights
Cabinet Temp > Set point + 2
ON
ON
ON
ON or OFF
Cabinet Temperature <= Set point - 2
OFF
OFF
ON
ON or OFF
Defrost
OFF
OFF
ON
ON or OFF
