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HWE09120 GB
(3) Dry operation
Dry operation
*Note 1
*Note 2
YES
YES
NO
NO
4-way valve OFF
1. Outdoor unit (compressor)
intermittent operation
2. Indoor unit fan intermittent operations
(Synchronized with the compressor:
low speed, OFF operations)
Normal operation
Thermostat ON
Thermostat ON
1. Indoor unit fan stop
2. Inverter output 0Hz
3. Indoor unit LEV, LEV1 fully closed.
LEV2 rated opening.
4. Solenoid valve OFF
5. Outdoor unit fan stop
6.
72C OFF
1 or 2
*Note 1.When the indoor unit inlet temperature exceeds 18°C [64°F], the outdoor unit (compressor) and the
indoor unit fan start the intermittent operation simultaneously. When the indoor unit inlet temperature
becomes 18°C [64°F],or less, the fan always runs (at low speed). The outdoor unit, the indoor unit,
and the solenoid valve operate in the same way as they do in the cooling operation when the compressor
is turned on.
*Note 2.Thermostat is always kept on during test run mode, and indoor and outdoor unit intermittent operation
(ON) time is a little longer than that of normal operation.
Test run mode
ON
Suction temperature
18°C[64°F]
Unit in the stopped state