Outline of Control (Indoor Unit)
SiUS30-1301
66
Function and Control
9. Outline of Control (Indoor Unit)
9.1
Drain Pump Control
The drain pump is controlled by the ON/OFF buttons.
9.1.1 When the Float Switch is Tripped while the Cooling Thermostat is ON:
Note:
1. (Normal operation):
The objective of residual operation is to completely drain any moisture adhering to the fin of the
indoor unit heat exchanger when the thermostat goes OFF during cooling operation.
2. (Error residual):
The remote controller will display "
A3
" and the air conditioner will come to an abnormal stop in 5
minutes if the float switch is turned OFF while the cooling thermo. is ON.
9.1.2 When the Float Switch is Tripped while the Cooling Thermostat is
OFF:
Note:
1. (Error residual):
The remote controller will display "
A3
" and the air conditioner will come to an abnormal stop if
the float switch is turned OFF and not turned ON again within 5 minutes while the cooling
thermo. is OFF.
Thermostat
(running)
Float switch
Drain pump
ON
OFF
OFF
ON
ON
OFF
∗
1) Normal operation
∗
2) Error residual
5 min.
Remote controller " " blinking
abnormal stop
5 sec.
5 min.
Thermostat
(running)
Float switch
Drain pump
ON
OFF
OFF
ON
ON
OFF
Enters error treatment if the float switch is not reset within
5 minutes.
Remote controller " " blinking abnormal stop
5 min.
5 sec.
5 min.
5 sec.
∗
1