Sequence Of Operations Refrigerator - Beverage-Air BM Series User Manual

User Manual for BM Refrigerators

SEQUENCE OF OPERATIONS REFRIGERATOR

The refrigerator operates based on the air temperature measured by the probe located at the return air.
ON
COMPONENT OPERATION
Compressor turns
on when the air
COMPRESSOR temperature at the
probe is above the
sum of the set point
The Condenser Fan
turns on when
CONDENSER FAN
the Compressor is
running
The Evaporator Fan
runs continuously.
EVAPORATOR When the unit is
FAN plugged in, the
Evaporator Fan will
run.
Condition
Cabinet Temp > Set point + 2
Cabinet Temperature <= Set point - 2
Defrost
10
CONTROLLER ACTION
The Compressor
Contact is energized
(502-519D – Terminal
#4)
The Condenser Fan
is wired directly to
the Compressor, not
through the controller
The Evaporator Fan is
connected directly to
incoming power, not
through the controller.
ON ON
OFF OFF
OFF OFF
Beverage-Air
OFF
OPERATION
Compressor turns
off when the air
temperature at probe is
equal to or less than the
set point
The Condenser Fan
turns off when the
Compressor is not
running
The Evaporator Fan runs
continuously. When the
unit is plugged in, The
Evaporator Fan will run.
ON
ON
ON
Beverage-Air
CONTROLLER ACTION
The Compressor
Contact is de-
energized
(502-519D – Terminal
#4)
The Condenser Fan
is wired directly to
the Compressor, not
through the controller
The Evaporator Fan is
connected directly to
incoming power, not
through the controller.
Rev. 08/20