Daikin Altherma HT - Page 67

ESIE09-08B Protection Control
Function 55
In heating operation [R-134a]
Pc>2.85MPaAfter 10 sec.
Pc<2.75MPa
Pc>3.2MPa
Keep the current step
After 60 sec.
High pressure not limited
High pressure drop
High pressure limited
INV upper limit frequency :
1-step up from current
compressor frequency
Pc: HP pressure sensor detection value
INV upper limit frequency :
1-step down from current
compressor frequency
When occurring 3 times within 60
minutes, HPS is activated without high
pressure standby, thus outputting the
malfunction code "E3".
Pc<2.7MPa
during - defrost
- compressor stop
Pc>2.85MPa
High pressure
standby
or