Outline of Control (Indoor Unit)
SiUS371901E
145
Functions and Control
9.5
Drain Pump Control
9.5.1 Normal Operation
•
The float switch is ON in normal operation.
•
When cooling operation starts (thermostat ON), the drain pump turns ON simultaneously.
•
After the thermostat turns OFF, the drain pump continues to operate for another 5 minutes.
•
The aim of residual operation after thermostat OFF is to eliminate the dew that condenses on
the indoor heat exchanger during cooling operation.
9.5.2 If the Float Switch is OFF with the Thermostat ON in Cooling Operation
•
When the float switch turns OFF, the thermostat turns OFF simultaneously.
•
After the thermostat turns OFF, the drain pump continues to operate for another 5 minutes.
∗
1. If the float switch turns ON again during the residual operation of the drain pump, cooling
operation also turns on again (thermostat ON).
∗
2. If the float switch remains OFF even after the residual operation of the drain pump has ended,
the error code
A3
is displayed on the remote controller.
∗
3. The drain pump turns OFF once residual operation has ended, then turns ON again after 5
seconds.
∗
4. After
A3
is displayed and the unit comes to an abnormal stop, the thermostat will remain OFF
even if the float switch turns ON again.
Float switch
Error display
Thermostat
(running)
OFF
OFF
ON
ON
ON
OFF
Drain pump
ON
OFF
5 min.
OFF
OFF
ON
ON
ON
OFF
ON
OFF
5 min.
5 min. 5 sec.
5 sec.
Float switch
Error display
Thermostat
(running)
Drain pump
A3
}
∗
1
∗
2
∗
4
∗
3
Summary of Contents for REYQ72-456XATJU
Page 415: ...SiUS371901E Wiring Diagrams Appendix 402 REYQ144 168XATJU 2D119206A ...
Page 416: ...Wiring Diagrams SiUS371901E 403 Appendix REYQ72 96 120XAYDU 2D119207B ...
Page 417: ...SiUS371901E Wiring Diagrams Appendix 404 REYQ144 168XAYDU 2D119208B ...
Page 418: ...Wiring Diagrams SiUS371901E 405 Appendix REYQ72 96 120 144 168XAYCU 2D119209A ...
Page 421: ...SiUS371901E Wiring Diagrams Appendix 408 FXZQ05 07 09 12 15 18TAVJU 3D110443A ...
Page 423: ...SiUS371901E Wiring Diagrams Appendix 410 FXEQ07 09 12 15 18 24PVJU 3D098557A ...
Page 426: ...Wiring Diagrams SiUS371901E 413 Appendix FXMQ07 09 12 15 18 24 30 36 48 54PBVJU 3D093209B ...
Page 428: ...Wiring Diagrams SiUS371901E 415 Appendix FXHQ12 24 36MVJU 3D048116C ...
Page 429: ...SiUS371901E Wiring Diagrams Appendix 416 FXAQ07 09 12 18 24PVJU C 3D075354D ...
Page 435: ...SiUS371901E Wiring Diagrams Appendix 422 VAM1200GVJU 3D073270D ...
Page 437: ...SiUS371901E Wiring Diagrams Appendix 424 1 4 2 Multi Branch Selector Unit BS4Q54TVJ 3D089123B ...
Page 438: ...Wiring Diagrams SiUS371901E 425 Appendix BS6 8Q54TVJ 2D089122B ...
Page 439: ...SiUS371901E Wiring Diagrams Appendix 426 BS10 12Q54TVJ 2D089121B ...
Page 440: ...Revision History Month Year Version Revised contents 04 2019 SiUS371901E First edition ...
