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Protection Control
ESIE09-08A
62
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 heating operation [R-410A]
High-pressure drop
Pc>3.04MPa
After 10 sec.
Pc>3.04MPa
Pc<2.94MPa
Pc>3.64MPa
Keeping the current step
After 60 sec.
High pressure not limited
High pressure limited
Pc: HP pressure sensor detection value
Pc<2.89MPa
INV upper limit frequency :
1-step down from current
compressor frequency
INV upper limit frequency :
1-step up from current
compressor frequency
High pressure
standby
When occurring 10 times within 60
minutes, HPS is activated without
high pressure standby, thus
outputting the malfunction code "E3".
Summary of Contents for ALTHERMA HT EKBUHAA6 V3
Page 2: ......
Page 7: ...ESIE09 08A Table of Contents v 1 3 Service Tools 283 Index i Drawings Flow Charts iii ...
Page 16: ...Model Names of Indoor Outdoor Units Tanks ESIE09 08A 4 General Information ...
Page 28: ...Refrigerant Circuit ESIE09 08A 16 Refrigerant Circuit EKHBRD 011 014 016 AB AC V1 Y1 ...
Page 40: ...Functional Parts Layout ESIE09 08A 28 Refrigerant Circuit ...
Page 63: ...ESIE09 08A PCB Layout for EKHBRD 011 014 016 AA AB AC V1 Y1 Refrigerant Circuit 51 ...
Page 64: ...PCB Layout for EKHBRD 011 014 016 AA AB AC V1 Y1 ESIE09 08A 52 Refrigerant Circuit ...
Page 125: ...ESIE09 08A Field Setting Test Operation 113 ...
Page 232: ...Troubleshooting by Indication on the Remote Controller ESIE09 08A 222 Troubleshooting ...
Page 237: ...ESIE09 08A Piping Diagrams Appendix 227 EKHBRD 011 014 016 AB AC V1 Y1 ...
Page 250: ...Wiring Diagrams ESIE09 08A 240 Appendix EKHBRD 011 014 016 AB AC V1 ...
Page 251: ...ESIE09 08A Wiring Diagrams Appendix 241 ...
Page 256: ...Wiring Diagrams ESIE09 08A 246 Appendix EKHBRD 011 014 016 AB AC Y1 ...
Page 257: ...ESIE09 08A Wiring Diagrams Appendix 247 ...
Page 260: ...Wiring Diagrams ESIE09 08A 250 Appendix ...