Daikin REYQ-TA Series Service Manual page 87

SiUS371614E
Heating
Pc > 3.31 MPa
(480 psi)
9-step down
After 10
seconds
Current step
maintained
Pc < 3.22 MPa
(467 psi)
3-step up
High pressure standby
(2 times within 40 minutes)
Functions and Control
Normal Operation
Pc > 3.39 MPa
(492 psi)
Pc > 3.31 MPa
(480 psi)
After 15
seconds
Pc > 3.72 MPa (540 psi)
Pc < 3.17 MPa
(460 psi)
All units
Compressor step: 1
High pressure switch (4.0 MPa
(580 psi) ) is activated
Abnormal stop
(E3 is displayed)
Protection Control
Pc: High pressure sensor
detection value for master
unit
74