Electra WNG 50 DCI Service Manual page 44

Indoor Coil Defrost Protection
11.19.1
ICT
Increasing
ICT < -2
-2 ” ICT < 0
0 ” ICT < 2
2 ” ICT < 4
4 ” ICT < 6
6 ” ICT < 8
8 ” ICT
Indoor Coil over Heating Protection
11.19.2
ICT
Decreasing
ICT > 55
53 < ICT ” 55
49 < ICT ” 53
47 < ICT ” 49
45 < ICT ” 47
43 < ICT ” 45
ICT ” 43
Compressor over Heating Protection
11.19.3
Compressor temperature can be in one of 5 control zones (4 in protection, and 1
normal), according to the following chart.
CTT
CTTOH4
CTTOH3
CTTOH2
CTTOH1
Service Manual - WNG 50_60_80 DCI
Fast Increasing
SC SC
D1 D1
SR SR
SR SR
Norm Norm
Norm Norm
Fast Decreasing
SC SC
D1 D1
SR SR
SR SR
Norm Norm
Norm Norm
Revision Y05-02
CONTENT
ICT Trend
No change Decreasing
SC SC
D2 D2
D1 D2
SR D1
SR SR
Norm SR
Normal
ICT Trend
No Change Increasing
SC SC
D2 D2
D1 D2
SR D1
SR SR
Norm SR
Normal
Stop-Compresor
P3
P2
P1
Normal
CONTROL SYSTEM
Fast
Decreasing
SC
D2
D2
D2
D1
SR
Fast
Increasing
SC
D2
D2
D2
D1
SR
11-7