Protection Control SiBE37-701_B
133 Function
[Heating Operation and Simultaneous Cooling / Heating Operation]
★
The following control is performed in the entire system.
Pc_max indicates the maximum value within the system.
Normal Operation
Pc_max>3.31MPa
When high
pressure is limited
Pc_max<2.94MPa
Compressor step:
7 STEP down
Pc_max
>3.42MPa
&
• After 10 sec.
• Pc_max>3.31MPa
Set the compressor
step to STEP 1
• Pc_max>3.64MPa
High pressure
standby
When occurring 3 times within 30 min.,
high pressure switch is activated without
high pressure standby, thus outputting
the malfunction code “E3”.
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