Mitsubishi Electric MSZ-A09RV Service Manual page 36

9-12.Outdoor fan motor control
The AC fan motor turns ON/OFF, interlocking with the compressor.
[ON]
The AC fan motor turns on 5 seconds before the compressor starts up.
[OFF]
The AC fan motor turns off 15 seconds after the compressor stops running.
ON
Compressor
OFF
ON
Outdoor fan
OFF
9-13. 4-way valve control
COOL&DRY mode . . . . . . . . . ON(voltage applied)
HEAT mode . . . . . . . . . . . . . . . OFF(voltage not applied)
w The 4-way valve does not turn ON before the compressor starts up.
5 sec.
The 4-way valve turns ON as soon as thermostat turns ON.
The 4-way valve turns OFF 15 minutes after the thermostat turns OFF.
During normal HEAT operation the 4-way valve is OFF.
<COOL>
5 seconds
ON
Compressor
OFF
ON
4-way valve
OFF
ON
Outdoor fan
OFF
15 sec.
<HEAT>
5 seconds
36