BEKO THAI NF 60 CM BOTTOM FREEZER REFRIGERATORS
09.03.2020 / REV NO: 01
14
Sensitivity: Public
FF Defrost
Decision:
Normal State
Door Closed
Detc.
Depending on the compressor cycle count
Depending on the defined maximum operation duration of the
compressor
If the compressor is operated continuously for at least 240
minutes, FF Defrost process shall be initiated when the FF
Eva sensor temperature is lower than -30°C.
Every 4 cycles
240 min
10
1000 min
Algorithmic Behavior:
Normal State
Door Closed
Detc.
FF Fan
Compressor
Active
Not active
Not active
Not active
Function Stopped:
FF defrost process is stopped when FF Eva sensor r4°C.
Maximum FF defrost duration is 150 minutes.
The ice is defrosted by operating the FRZ evaporator heater and discharge heater once in every 26
hours for FRZ defrost.
The compressor shall not initiate FRZ defrost process based on the total operation duration apart from
26 hours of actual operation.
If the closed door algorithm is activated, the ice is defrosted by operating the FRZ evaporator heater
and discharge heater once in every 50 hours for FRZ defrost.
5.1.2. Compressor
Operating Conditions
Condition for the Compressor to be ON:
- FF Air >= cut-in or Frz Air >=cut-in
Condition for the Compressor to be OFF:
- FF mandatory defrost condition
- FF Air <= cut-out and - Frz Air <= cut-out
Notes:
Compressor pause duration = 6 minutes.
For the Compressor:
-
Min. operation duration: 5 min
-
Max. operation duration: 1000 min
-
Min. Pause duration: 5 min
-
Max. Pause duration: 360 min
