Function of Indoor Unit (SA Models) SiBE121021_C
104 Function and Control
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:
∗
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:
*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.
The remote controller displays "A3"
and the indoor unit stops.
Thermostat
(running)
Float switch
Drain pump
ON
ON
ON
OFF
OFF
OFF
5 min. 5 min. 5 sec.
*1) Normal operation *2) Malfunction residual
(R12933)
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.
Thermostat
(running)
Float switch
Drain pump
ON
ON
OFF
ON
OFF
OFF
*3
5 min. 5 min.5 sec. 5 sec.
(R12934)
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