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SiUS39-602
Protection Control
Function
61
4.3
Discharge Pipe Protection Control
This discharge pipe protection control is used to protect the compressor internal temperature
against a malfunction or transient increase of discharge pipe temperature.
★
Each compressor performs the discharge pipe temperature protection control individually
in the following sequence.
[INV compressor]
[STD compressor]
In discharge pipe temp.
protection control
HTdi>230˚F
Tp>239˚F
HTdi :Value of INV compressor discharge pipe
temperature (Tdi) compensated with
outdoor air temperature
Tp :
Value of compressor port temperature
calculated by Tc and Te, and suction
superheated degree.
or
Discharge pipe temp.
protection control not limited
Discharge pipe
temp.control standby
INV upper limit frequency:
1-step down from current
compressor frequency
INV upper limit frequency: 1-step up
from current compressor frequency
INV62 Hz + OFF
HTdi>230˚F
Tp>239˚F
or
Every 30 sec.
HTdi>275˚F
HTdi>239˚F for 10 min. or more.
or
HTdi<221˚F
Tp<239˚F
&
Every 60 sec.
HTdi>266˚F
HTdi>239˚F
for 90 sec.
or more.
Tp>266˚F
or
HTdi<203˚F
Tp<212˚F
&
When occurring 3 times within 100 minutes,
the malfunction code “F3” is output.
• HTds>239˚F continues for 5 min. or more.
• HTds>275˚F
• Tp>239˚F continues for 10 min. or more.
• Tp>266˚F
or
Applicable STD
compressor stops.
10 min.
Discharge pipe temp.
protection control not limited
HTds : Value of STD compressor discharge
pipe temperature (
Tds) compensated
with outdoor air temperature
Tp:
Value of compressor port temperature
calculated by Tc and Te , and suction
superheated degree.
Summary of Contents for REYQ72
Page 35: ...Specifications SiUS39 602 24 Specifications...
Page 121: ...Field Setting SiUS39 602 110 Test Operation...
Page 129: ...Troubleshooting by Remote Controller SiUS39 602 118 Troubleshooting...
Page 225: ...Troubleshooting OP Unified ON OFF Controller SiUS39 602 214 Troubleshooting...
Page 232: ...SiUS39 602 Piping Diagrams Appendix 221 1 3 BS Unit BSVQ36MVJU BSVQ60MVJU 4D045338...
Page 235: ...Wiring Diagrams for Reference SiUS39 602 224 Appendix REYQ144 168 192MTJU C 3D050354A...
Page 240: ...SiUS39 602 Wiring Diagrams for Reference Appendix 229 2 4 BS Unit BSVQ36M 60MVJU 3D045069A...
Page 249: ...Example of Connection R 410A Type SiUS39 602 238 Appendix...
Page 255: ...Method of Replacing The Inverter s Power Transistors and Diode Modules SiUS39 602 244 Appendix...
Page 265: ...Precautions for New Refrigerant R 410A SiUS39 602 254 Precautions for New Refrigerant R 410A...
Page 269: ...SiUS39 602 iv Index...