Airwell DLS 43 DCI, Service Manual

Page: 101 / 182

12-2
CONTROL SYSTEM
SM DLSDCI 3-A.1 GB
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12.6.3 Deicing
12.6.3.1 Deicing Starting Conditions
12.6.4.1 Deicing Starting Conditions
Deicing operation will start when either one of the following conditions exist:
Case 1: OCT is 8 degree lower then the ambiant temp and the minimum time from the last deicer is passed.
Case 2: OCT is 12 degree lower then the ambiant temp and 30 minutes from the last deicer wa passed.
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in other cases.
Deicing interval time is changed (increased/ decreased in 10 minutes steps) as a function of deicing time.
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Deicer may accure also when the unit switch to stanby and the OCT is 8 degree lower then ambiant
temperature
12.6.3.2 Deicing Protection Procedure
COMP
RV
OFAN
EEV
ON
HEAT
COOL
ON
OFF
!!()
Any
T1 T2
T3 T3
T1
12
0
Threshold
max. 12 minutes
DT
OCT
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