2WAY SYSTEM
Control Functions - Indoor Unit
2 - 6
2
4. Indoor Unit MOV Control
5. Drain Pump Control
4. Indoor Unit MOV Control
For details, see the Section 1.
The MOV is at 480 pulses in the following cases.
①
At the time of factory shipment
②
Just after the indoor unit power cord is connected.
5. Drain Pump Control
The drain pump operates in the following conditions.
①
Cooling thermostat ON
②
The float switch worked.
③
The drain pump may often operate for a while when the cooling thermostat turns OFF or the indoor
unit is stopped.
④
The drain pump can be turned on when the cooling thermostat is OFF if the setting is made to prevent
water collected in the drain pan for a long time. For details, see the item "5-2. Detailed Settings
Function" under the Section 5.
⑤
The indoor unit heat exchanger liquid temperature (E1) is less than 0˚C when the cooling thermostat
is OFF or the indoor unit is stopped.
The drain pump operates for 20 minutes once it starts operating.
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