Test Operation
SiUS331604E
75
Field Setting
Caution
Power supply has been turned on for outdoor unit, be careful to avoid electric shock.
• Set the push buttons (BS1 ~ 5) after making sure the service monitoring lamp has been ON.
• For setting method, see the "Service Precautions" label attached to the front panel of the outdoor unit.
(Be sure to keep a record of the setting items to the "Service Precautions" label.)
• Don't touch the changeover switches (DS1-1) while setting them. Failure to do so may result in malfunction.
(4) • Check whether the gas side and liquid side stop valves have been opened. Open them if they are closed.
Caution
Operation with the stop valve closed may result in compressor malfunction.
(5) Press TEST button (BS4) for 5 seconds or more to perform test operation.
See About test operation on the "Service Precautions" label for details.
• Ask other installers to perform test operation or attach the front panel before having to leave the outdoor unit
working alone.
• Test operation is automatically stopped after about 30 minutes (maximum 1 hour) operation. (Perform
checks of fault wiring, closed stop valves & refrigerant charging and auto determination of piping length)
• After test operation is completed, if there is no error code on the display of the remote controller, the unit can
perform normal operation 3 minutes later.
• The display of the remote controller indicates symbol of test operation during this operation.
(6) Be sure to attach the front panel of the outdoor unit after test operation is completed.
About test operation
If the system is started about 12 minutes after the indoor and outdoor units are opened or later, the
compressor will not operate and H2P will light up.
Before operating, always check whether the symbols indicated on the LED display are those in the table
under “1. Powering on ~ test operation (2)”.
In order to ensure uniform refrigerant distribution, it may take up to around 10 minutes for the compressor to
start up after the unit starting operation. This is not a malfunction.
The operation check is not for checking individual indoor units. After completing the operation check, operate
the system normally with the remote controller.
Test operation can't be performed when the unit is in other modes such as refrigerant recycling mode.
Never perform test operation with discharge pipe thermistor (R2T), suction pipe thermistor (R3T) and
pressure sensor (S1NPH, S1NPL) removed. Failure to do so will result in compressor damage.
Summary of Contents for VRV IV-S RXTQ-TAVJU Series
Page 1: ...Service Manual SiUS331604E RXTQ36 48 60TAVJU Heat Pump 60 Hz...
Page 254: ...Wiring Diagrams SiUS331604E 241 Appendix RXTQ48TAVJU 3D100496A...
Page 255: ...SiUS331604E Wiring Diagrams Appendix 242 RXTQ60TAVJU 3D100497A...
Page 260: ...Wiring Diagrams SiUS331604E 247 Appendix FXEQ07 09 12 15 18 24PVJU C 3D098557...
Page 267: ...SiUS331604E Wiring Diagrams Appendix 254 FXTQ12 18 24 30 36 42 48 54PAVJU 3D065036G...
Page 270: ...Wiring Diagrams SiUS331604E 257 Appendix VAM1200GVJU 3D073270C...
Page 271: ...Revision History Month Year Version Revised contents 06 2016 SiUS331604E First edition...