12-4
CONTROL SYSTEM
SM GCD030 1-A.0 GB
Correction by OAT (EEVOATCrct):
ODU Mode
OAT
EEVOATCrct
Single Split
Multi Split
Cool
> 35
3*(OAT-35)
5*(OAT-35)
<=35
1*(OAT-35) 2*(OAT-35)
Faulty
0
0
Heat
>7
3*(OAT-7) 3*(OAT-7)
<=7
2*(OAT-7) 2*(OAT-7)
Faulty
0
0
Correction by actual compressor frequency:
ODU Mode
EEVFreqCrct (Single)
EEVFreqCrct (multi)
Cool
-1*(
MaxFreqC
-Actual Frequency)
0*(
MaxFreqC
-Actual Frequency)
Heat
-1*(
MaxFreqH
-Actual Frequency)
0*(
MaxFreqH
-Actual Frequency)
The following table describes the time calculations for the Open loop and the Correction value:
During
BalanceTime
minutes after
compressor starts up
After
BalanceTime
minutes
EEV Open Loop
Yes, continuously (always)
Yes, continuously (always)
EEV
CV
Single
No (set to 0)
Yes, every EEVTime
seconds from the last calculation point.
Multi
Yes, every EEVTime
seconds from the last calculation point,
OR whenever the number of active IDUs is changed
For EEVTime parameter refer to the relevant each section described below.
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