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”.
Summary of Contents for REYQ8-48PY1B
Page 1: ...Service Manual REYQ8 48PY1B R 410A Heat Recovery 50Hz SiBE37 701_B ...
Page 456: ...Piping Installation Point SiBE37 701_B 445 Appendix ...
Page 460: ...Example of connection SiBE37 701_B 449 Appendix ...
Page 476: ...Revision History Date News No Contents 2010 9 10 M 10011 Correction of service manual ...