11-7
CONTROL SYSTEM
SM TRIO52 1-A.2 GB
11.17.2 Indoor Coil over Heating Protection
ICT Trend
ICT
Fast
Decreasing
Decreasing No Change
Increasing
Fast
Increasing
ICT
>
55 SC SC SC SC SC
53 < ICT
55
D1 D1 D2 D2 D2
49 < ICT
53
SR
SR
D1
D2
D2
47 < ICT
49
SR SR SR D1 D2
45 < ICT
47
Norm
Norm
SR
SR
D1
43 < ICT
45
Norm Norm Norm SR
SR
ICT
43
Normal
11.17.3 Compressor over Heating Protection
Compressor temperature can be in one of 5 control zones (4 in protection, and 1 normal),
according to the following chart.
Normal
P1
P2
Stop-Compresor
CTTOH1
CTTOH2
CTTOH3
CTTOH4
CTT
P3
Control Status
Compressor Temperature
Increases
Else
P1 Norm
SR
P2 D1
SR
P3 D2
D1
Stop Compressor
SC
CONTENTS
