12-8
CONTROL SYSTEM
SM YBD018 1-A.1 GB
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
12.7.4
Outdoor Coil Overheating Protection
OMT
n
-OMT
n-1
OMT
n
<-1 -1
0
1
>1
OMT
n
HPC5
SC
SC
SC
SC
SC
HPC4
OMT
n
< HPC5
D2
D2
D2
D2
D2
HPC3
OMT
n
< HPC4
D1
D1
D1
D1
D1
HPC2
OMT
n
< HPC3
SR
SR
SR
SR
SR
HPC1
OMT
n
< HPC2
Norm
Norm
Norm
Norm
Norm
OMT
n
< HPC1
Norm
12.7.5
Compressor over Current Protection
Normal
Stop-Rise
HzDown1
HzDown2
Stop-Compresor
CCROC1
CCROC2
CCROC3
CCROC4
CCR