Daikin Super Multi Plus E-Series FFQ50B8V1B User Manual

Protection Control SiBE18-821_C
88 Function
4. Protection Control
4.1 High Pressure Protection Control
This high pressure protection control is used to prevent the activation of protection devices due
to abnormal increase of high pressure and to protect compressors against the transient
increase of high pressure.
[In cooling operation]
[In heating operation]
Pc > 3.47 MPaAfter 10 sec.
Pc
> 3.47 MPa
Pc
< 3.23 MPa
Pc > 3.64 MPa
Keeping the current step
After 15 sec.
High pressure not limited
High pressure limited
Pc: High pressure sensor detection value
When occurring 10 times within 60 minutes,
high pressure switch is activated without
high pressure standby, thus outputting the
error code "E3".
Upper limit frequency = Max
(R12926)
Upper limit frequency:
3-step down from current
compressor frequency
Upper limit frequency:
1-step up from current
compressor frequency
High pressure
standby
High pressure drop
Pc > 3.04 MPaAfter 10 sec.
Pc
> 3.04 MPa
Pc
< 2.94 MPa
Pc > 3.64 MPa
Keeping the current step
After 60 sec.
High pressure not limited
High pressure limited
Pc: High pressure sensor detection value
When occurring 10 times within 60 minutes,
high pressure switch is activated without
high pressure standby, thus outputting the
error code "E3".
Pc < 2.89 MPa
(R12927)
Upper limit frequency:
1-step down from current
compressor frequency
Upper limit frequency:
1-step up from current
compressor frequency
High pressure
standby

Daikin Super Multi Plus E-Series FFQ50B8V1B Specifications

General

Brand	Daikin
Model	Super Multi Plus E-Series FFQ50B8V1B
Category	Air Conditioner
Language	English