A52x Series Electronic Refrigeration Controller with Adaptive Defrost Technical Bulletin
25
Setting Up the Defrost Cycle
To enter the Defrost Setup menu, navigate to the high-level
DEFROST SETUP
screen and press
SET.
To scroll
through the
DEFROST SETUP
screens and options, tap the
DOWN
and
UP
keys.
SET
EVAP FAN DELAY
TEMPERATURE
SET
DEFROST
DURATION
SET
EVAP FAN
TEMPERATURE
SET
SET
SET
EVAP FAN DELAY
TIME
SET
EVAP FAN DELAY
TIME
MIN
1
SET
To set the maximum defrost duration time, select the maximum defrost
duration value and press
SET
. The defrost duration value range is
0
to
99
minutes.
Note:
All defrost cycles regardless of termination type terminate
when the system reaches the maximum defrost duration value.
To set the drip time delay, select the drip time delay value and press
SET
.
The delay value range is
0
to
10
minutes.
To set the evaporator fan delay temperature sensed at the Sensor 2
defrost sensor, select the delay temperature value and press
SET
. The
delay temperature value range is
20F°
to
35F°
.
To set the evaporator fan delay time, select the delay time value and
press
SET
. The delay time value range is
0
to
15
minutes.
SET
40°
DEFROST
TERMINATION
TEMPERATURE
90
30
SET
DEFROST
TERMINATION
TEMPERATURE
DEFROST
SETUP
SET
DRIP TIME
SET
DEFROST
DURATION
30
MIN
DRIP TIME
MIN
5
DEFROST SCHEDULE
TYPE
DEFROST
SCHEDULE
ADA
PTI
SET
SET
SET
SET
SET
SET
SET
SET
To set the defrost termination temperature, select the defrost termination
temperature value and press
SET
. The range is
30F°
to
90F°
.
28°
35
20
To set the defrost schedule type, select
SCHEDU
(Scheduled) or
ADAPTI
(Adaptive) and press
SET
.
SET
