Table 17: Adaptive defrost setup screens descriptions, values, and selections
Screen name
Description
Value or
selection
DEFROST
SCHEDULE TYPE
To enable and set up adaptive defrost, select
ADA-PTI
on the
DEFROST SCHEDULE TYPE
screen and press
SET
.
•
ADA-PTI
•
SCH-EDU
To set the initial defrost interval, press
SET
.
n/a
ADAPTIVE
INTERVAL
Conditional
screen
Select the defrost interval value from the range 1 h to 48 h
and press
SET
.
Note:
The defrost interval is the time in hours from the
start of a defrost cycle to the start of the next defrost
cycle. This time period is an estimate only. The adaptive
defrost feature continually adjusts over time to achieve
the expected defrost duration value.
1 h to 48 h
To set the expected defrost duration, press
SET
.
n/a
ADAPTIVE
DEFROST
DURATION
Conditional
screen
Select the defrost duration value and press
SET
.
Note:
The expected defrost duration is an estimate of the
time required to clear the evaporator of all accumulated
ice. The evaporator or refrigeration system manufacturer
may provide some guidance about the most appropriate
defrost duration for your system.
1 min to 99 min
To set the maximum time between defrost cycles, press
SET
. n/a
MAX TIME
BETWEEN
DEFROST
Conditional
screen
To set the maximum time between defrost cycles, select the
maximum time value from the range 3 h to 48 h and press
SET
.
3 h to 48 h
To set the minimum time between defrost cycles, press
SET
.
n/a
MIN TIME
BETWEEN
DEFROST
Conditional
screen
Select the minimum time value from the range 3 h to 48 h
and press
SET
.
3 h to 24 h
To set the blackout period start time, press
SET
.
n/a
BLACKOUT
START TIME
Conditional
screen
Select the hours, minutes, and
AM
or
PM
values and press
SET
.
Note:
During the optional blackout period, an adaptive
defrost cycle does not start.
Real-time value
To set the length of time that a blackout period persists,
press
SET
.
n/a
BLACKOUT
DURATION
Conditional
screen
Select the blackout duration value from the range 0 min to
240 min and press
SET
.
0 min to 240 min
To erase historical data from adaptive defrost and reset the
system to the initial defrost interval, press
SET
.
n/a
RESET HISTORY
Conditional
screen
Select
YES
to erase the historical data and press
SET
.
•
YES
•
NO
MR5 Series Panel Mount Case Controller Technical Bulletin
40
Discontinued
