![background image](http://html.mh-extra.com/html/daikin/4mxl-t-series/4mxl-t-series_service-manual_501130100.webp)
SA Indoor Unit Functions
SiUS121827E
94
Part 4 Functions and Control
3.7 Drain Pump Control
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.
If Float Switch is OFF with Thermostat ON in Cooling Operation
When the float switch stays OFF for 5 sec., the thermostat turns OFF.
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
(R24037)
∗
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 determined.
∗
3. The drain pump turns OFF once residual operation has ended, then turns ON again after
5 seconds.
∗
4. After
A3
is determined and the unit comes to an abnormal stop, the thermostat will
remain OFF even if the float switch turns ON again.
OFF
OFF
ON
ON
ON
OFF
ON
OFF
5 min.
5 min. 5 sec.
5 sec. 5 min. 5 sec.
(R24610)
Float switch
Error display
Thermostat
(running)
Drain pump
A3
∗
1
∗
2
∗
4
∗
3
5 sec.
5 sec.
Содержание 4MXL-T Series
Страница 107: ...SiUS121827E SA Indoor Unit Functions Part 4 Functions and Control 101 FFQ Series Emergency operation switch R24077 ...
Страница 182: ...Troubleshooting for RA Indoor Unit SiUS121827E 176 Part 6 Service Diagnosis Reference Check No 11 Refer to P 235 ...
Страница 190: ...Troubleshooting for SA Indoor Unit SiUS121827E 184 Part 6 Service Diagnosis Reference Check No 02 Refer to P 233 ...
Страница 249: ...SiUS121827E Check Part 6 Service Diagnosis 243 R6000583 1 2 3 4 Multimeter Front side Rear side ...
Страница 288: ...Piping Diagrams SiUS121827E 282 Part 8 Appendix 1 2 Outdoor Unit 5MXS48TVJU 4MXL36TVJU 3D117817 3D118311 ...
Страница 298: ...Operation Limit SiUS121827E 292 Part 8 Appendix 4 Operation Limit 5MXS48TVJU 4MXL36TVJU 3D048149D 3D101428 ...