Indoor Unit Mov Control; Drain Pump Control - Panasonic U-8ME2E8 Service Manual & Test Run Service Manual

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
2
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.
Control Functions - Indoor Unit
2 - 6
2WAY SYSTEM