AKO PROPlus 3PH - Defrost Control

1565H041 Ed.03
9.2.- Defrost control
DEFROST DEFROST
DRIP TIME
FAN START UP DELAY
"DEF” MESSAGE
CONTROL CONTROL
time
ºC
Max. B
C
A
SP
SP+Dif.
D
DEFROST DEFROST
DRIP TIME
FAN START UP DELAY
"DEF" MESSAGE
CONTROL CONTROL
Description
Parameter
A
Time between two defrost starts
Defrost frequency
B
Maximum defrost duration
Defrost duration
C
Maximum duration of the defrost message
Message duration
D
Final defrost temperature by probe 2
Defrost final temperature
SP
Temperature set point
Set point (SP)
Dif.
Temperature set point differential
Sensor 1 differential
9.2.- Defrost control
*In the panels AKO-15658 / 15659, the liquid solenoid is controlled instead of the compressor.
Defrost start
Defrost will start if:
Ÿ The time programmed in the Defrost frequency parameter has passed since the start of the last defrost.
The parameter Defrost mode defines how this time is counted:
ž Frequency: Total time passed between defrost starts.
ž Compressor sum: Total time of the compressor/solenoid* operating between defrost starts.
ž Real Time Clock: Defrost starts when one of the times programmed in the Defrost 1 to 8 on the
u menu is reached. (The defrost frequency is not taken into account).
Ÿ We press the N key for 5 seconds.
End of defrost
The defrost stops if:
Ÿ The temperature programmed in the Defrost final temperature has been reached in probe 2 (this requires
having a defrost probe connected to S2). In the event of probe 2 failure, defrosting will be complete once the
maximum time has elapsed (d1).
Ÿ The time configured in the Defrost duration has passed (maximum defrost duration). The I icon is shown on
the display if the Signals end defrost time parameter is configured in “Yes”.
Ÿ We press the N key for 5 seconds.
REMARK: If the Defrost duration is configured to 0, no defrosts are carried out.
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