Actions Performed In Different Modes - Mitsubishi Electric R410A Service Handbook

[5-3 Operation Flowcharts ]
5-3-2

Actions Performed in Different Modes

(1) Cooling operation
1. Inverter output 0Hz
2. Indoor unit LEV, LEV1
LEV2 rated opening
3. All solenoid valves OFF
4. Outdoor unit fan stop
5. 72C OFF
*Note 1. The indoor fan operates at the set notch under cooling mode regardless of the ON/OFF state of the thermostat.
HWE14080
Cooling operation
4-way valve OFF
Indoor unit fan
*Note 1
operation
YES
Test run mode
ON
NO
NO
Thermostat ON
YES
YES
3-minute restart
prevention
NO
1. Inverter frequency control
2. Indoor unit LEV, LEV1 control
LEV2 fully opened
3. Solenoid valve control
4. Outdoor unit fan control
5. 72C control
- 109 -
Normal operation
During test run mode
Unit in the stopped state
GB