SiBE121135_A Function of SA Indoor Unit
Function and Control 104
2. Function of SA Indoor Unit
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.
Float switch
The remote controller displays A3
and the indoor unit stops.
∗2) Malfunction residual∗1) Normal operation
5 min. 5 sec.5 min.
Drain pump
Thermostat
(running)
(R16092)
ON
ON
OFF
OFF
ON
OFF
Float switch
Drain pump
Thermostat
(running)
ON
ON
OFF
OFF
ON
OFF
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.
∗3
5 sec. 5 sec.5 min.5 min.
(R16093)
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