Outline of Control (Indoor Unit)
SiUS281811EA
132
Part 4 Functions and Control
6.7 Drain
Pump
Control
6.7.1 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.
6.7.2 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.
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
∗
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.
Summary of Contents for SkyAir RZR-TA Series
Page 1: ...Service Manual Cooling Only 60 Hz Heat Pump 60 Hz RZR TA RZQ TA Series SiUS281811EA...
Page 202: ...SiUS281811EA 196 Part 6 Service Diagnosis 5 15 Fan Motor Connector Check for FTQ TA 311...
Page 323: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 317 RZR18 24TAVJUA RZQ18 24TAVJUA 3D124495...
Page 327: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 321 FHQ18 24 30PVJU FHQ36 42MVJU 3D048116C...
Page 328: ...Wiring Diagrams SiUS281811EA 322 Part 7 Appendix FAQ18 24TAVJU 3D114844B...
Page 329: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 323 FBQ18 24 30 36 42 48PVJU 3D065984J...
