Outline of Control (Indoor Unit) SiBE37-701_B
147 Function
6.3 Drain Pump Control
1. The drain pump is controlled by the ON/OFF buttons (4 button (1) - (4) given in the figure
below).
6.3.1 When the Float Switch is Tripped while the Cooling Thermostat is
ON:
∗
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. (Malfunction 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.
6.3.2 When the Float Switch is Tripped while the Cooling Thermostat is
OFF:
*3. (Malfunction 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
ON
OFF
ON
OFF
Remote controller "A3" flashing
malfunction stop
5 min. 5 sec.5 min.
*1) Normal operation *2) Malfunction residual
Thermostat
(running)
Float switch
Drain pump
ON
OFF
ON
OFF
ON
OFF
5 min.
5 sec.
5 min.
5 sec.
Enters malfunction treatment if the float switch is not reset within 5 minutes.
Remote controller "A3" flashing malfunction stop
*3
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