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SiUS39-602
Other Control
Function
65
5.2
Emergency Operation
If the compressor cannot operate, this control inhibits any applicable compressor or outdoor unit
from operating to perform emergency operation only with the operative compressor or outdoor
unit.
5.2.1 Restrictions for Emergency Operation
• In the case of system with 1 outdoor unit installed and when the inverter compressor is set to
operation prohibit, only when thermostats of indoor units having a capacity of 50% or more of
the outdoor unit capacity turn ON, the emergency operation is functional. (If the total capacity
of indoor units with thermostat ON is small, the outdoor unit cannot operate.)
• If the emergency operation is set while the outdoor unit is in operation, the outdoor unit stops
once after pump-down residual operation (a maximum of 5 minutes elapsed).
5.2.2 In the Case of REYQ72M, 96M
• Emergency operation with settings in service mode
∗
“Inhibition of operation” is set with each compressor.
• To inhibit INV compressor from operating
→
Set
setting mode 2 from No. 0 to No. 2.
(Procedure)
(1) Press and hold the MODE button (BS1) for 5 sec. or
more.
(2) Press the RETURN button (BS3) once.
(3) Press the SET button (BS2) one.
(4) Press the RETURN button (BS3) twice.
(5) Press the MODE button (BS1) once.
• To inhibit STD1 compressors from operating
→
Set
setting mode 2 from No. 19 to No. 2.
(Procedure)
(1) Press and hold the MODE button (BS1) for 5 sec. or
more.
(2) Press the SET button (BS2) 19 times.
(3) Press the RETURN button (BS3) once.
(4) Press the SET button (BS2) once.
(5) Press the RETURN button (BS3) twice.
(6) Press the MODE button (BS1) once.
Caution
"For making a compressor unable to operate due to malfunction, etc., be sure to
conduct the work with emergency operation setting.
Never execute work such as disconnection of the power cable from magnet contactor.
(Otherwise, other normal compressors may malfunction.)
∗
Because the units will be operated in the combination with which oil pressure
equalization between compressors cannot be performed.
LED display (
7
:ON
7
:OFF
9
:Blink)
H1P---H7P
(Factory set)
7
777777
7777779
7777797
7777777
77
7777777
LED display (
7
:ON
7
:OFF
9
:Blink)
H1P---H7P
(Factory set)
7
777777
77
7777
7777
7777779
7777797
7777777
77
7777777
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...