Specifications

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Pc > 500 psiEvery 10 sec.
Pc
> 493 psi
Pc
< 479 psi
Pc>3.6MPa
Keeping the current step
Every 60 sec.
479 psi≤Pc≤493 psi
Every
5 min.
or
&
High pressure not limited
High pressure limited
INV upper limit frequency:
1-step up from current
compressor frequency
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 30
minutes, HPS is activated without high
pressure standby, thus outputting the
malfunction code "E3".
High pressure
standby
(V3173)
• INV upper limit frequency
• Pc ≤ 493 psi
• During oil return operation
• After oil return operation
• Stopping operation
• Heating operation
Pc > 479 psi
Pc
> 522 psi
52Hz
Pc
< 450 psi
High pressure not limited
High pressure
limited
High-pressure drop
Pc: HP pressure sensor detection value
When HPS is activated, the
malfunction code "E3" is output.
High pressure
standby
(V3174)