Daikin RXYQ96PYDN Service Manual page 79

Protection Control
[Heating Operation]
64
The following control is performed in the entire system.
Pc_max indicates the maximum value within the system.
Normal Operation
Pc_max>479.95psi
When high
pressure is limited
Compressor step:
7 STEP down
Pc_max
>495.9psi
Set the compressor
step to STEP 1
High pressure
standby
Pc_max<426.3psi
After 10 sec.
&
Pc_max>479.95psi
Pc_max>527.8psi
When occurring 3 times within
30 min., HPS is activated without high
pressure standby, and the
malfunction code [E3 ] is displayed.
SiUS34-801A_b
VRVIII R-410A Heat Pump 60Hz