Technibel MCAF92R5TA Technical Data & Service Manual page 23

OR deice complete
No
Reset TLD cnt to 0
No
Reset SCT cnt to 0
No
DDT = OCT - TempD
Explanation:
The "Ice Forming Detection" will be done by two algorithms –
1. In Dynamic Temp Detection, the ice formation will be detected by
(i) Compare the OCT with a Deicing Dynamic Temperature Threshold, and
(ii) Detect the drop in ICT which accompany the ice formation.
2. The Static Temp Detection will be done by comparing the OCT with a Deicing Static Temperature
Threshold.
The Deicing Data Record is used to determine the time delay between two deicing cycles. In general, the
time delay will be increased if the last deicing cycle can be completed quickly.
1st COMP start,
Yes
DTF = 0
IFAN/OFAN
speed change
Yes
DTF = 0
TLD > TST
AND
SCT > SCD
Yes
DTF = 1
DDT and DTF information
to main algorithm
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