Function of Indoor Unit (SA Models)
2. Function of Indoor Unit (SA Models)
2.1
Drain Pump Control
2.1.1 When the Float Switch is Tripped While the Cooling Thermostat is
ON:
Thermostat
Float switch
Drain pump
∗
1. (Normal operation):
The purpose of residual operation is to completely drain any moisture adhering to the fin of the
indoor heat exchanger when the thermostat goes off during cooling operation.
∗
2. (Malfunction residual):
The remote controller displays " A3 " and the air conditioner comes to an abnormal stop in 5
minutes if the float switch is turned OFF while the cooling thermostat is ON.
2.1.2 When the Float Switch is Tripped While the Cooling Thermostat is
OFF:
Thermostat
Float switch
Drain pump
*3. (Malfunction residual):
The remote controller displays " A3 " and the air conditioner comes to an abnormal stop if the float
switch is turned OFF and not turned ON again within 5 minutes while the cooling thermostat is
OFF.
73
ON
OFF
(running)
OFF
ON
ON
OFF
*1) Normal operation
ON
(running)
OFF
OFF
ON
ON
OFF
5 min.
*2) Malfunction residual
The indoor unit enters malfunction treatment if the float switch is not
reset within 5 minutes.
The remote controller displays "A3" and the indoor unit stops.
5 min.
5 sec.
5 min.
5 sec.
*3
SiBE12-816_D
The remote controller displays "A3"
and the indoor unit stops.
5 min. 5 sec.
Function and Control
(R12933)
(R12934)