4-6
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4-4. Drain Pump Control
The drain pump operates in the following conditions.
① Cooling thermostat ON
② The fl oat 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, refer to “7-3. Detailed Settings Function.”
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.
Sec4.indd6Sec4.indd6 2012/03/0717:35:202012/03/0717:35:20
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