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(5) Dry operation
Normal operations
Thermostat ON
Stop
Dry operations
4-way valve OFF
Thermostat ON
Test run start
Inlet temp.
>
=
18˚C
Note: 2
Note: 1
1. Indoor unit fan stop
2. Inverter output 0Hz
3. Indoor unit LEV, oil return LEV,
Subcool bypass LEV fully closed
4. Solenoid valve OFF
5. Outdoor unit fan stop
1. Outdoor unit (Compressor)
intermittent operations
2. Indoor unit fan intermittent
operations
(Synchronized with compressor :
low speed, OFF operations)
2 : (6) 1 or 3 : (6) 2
Note : 1 When indoor unit inlet temperature exceeds 18˚C, outdoor unit (compressor) and indoor unit fan start intermittent operations
synchronously. Operations of outdoor unit, indoor unit LEV and solenoid valve accompanying compressor are the same as
those in cooling operations.
Note : 2 Thermostat is always kept on in test run, and indoor and outdoor unit intermittent operation (ON) time is a little longer than
normal operations.
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