Daikin ERSQ 011AAV1 Service Manual page 69

ESIE09-08
In heating operation [R-134a]
High pressure limited
Function
High pressure drop
High pressure not limited
or
Pc>2.85MPa
INV upper limit frequency :
1-step down from current
compressor frequency
After 10 sec. Pc>2.85MPa
Keep the current step
Pc<2.75MPa After 60 sec.
INV upper limit frequency :
1-step up from current
compressor frequency
Pc>3.2MPa
High pressure
standby
Pc: HP pressure sensor detection value
Pc<2.7MPa
during - defrost
- compressor stop
When occurring 3 times within 60
minutes, HPS is activated without high
pressure standby, thus outputting the
malfunction code "E3".
Protection Control
57