Actuator Control - Mitsubishi MUZ-A18YV Service Manual

9

ACTUATOR CONTROL

MUZ-A18YV -
E1
MUZ-A24YV -
E1
MUZ-A26YV -
E1
9-1. Outdoor fan motor control
The fan motor turns ON/OFF, interlocking with the compressor.
[ON] The fan motor turns ON 5 seconds before the compressor starts up.
[OFF] The fan motor turns OFF 15 seconds after the compressor has stopped running.
Compressor
Outdoor fan
9-2. R.V. coil control
Heating . . . . . . . . . . . . . . . . ON
Cooling. . . . . . . . . . . . . . . . . OFF
Dry . . . . . . . . . . . . . . . . . . . . OFF
NOTE: The 4-way valve reverses for 5 seconds right before start-up of the compressor.
Compressor
R.V.coil
Outdoor fan
9-3. Relation between main sensor and actuator
Relation between main sensor and actuator.
Sensor
Discharge temperature thermistor
Indoor pipe temperature thermistor
Defrost thermistor
Fin temperature thermistor
Outdoor heat exchanger temperature
5 seconds
ON
OFF
ON
OFF
<COOL>
5 seconds
ON
OFF
ON
OFF
ON
OFF
Purpose
Protection
Defrosting Protection
Defrosting
Protection
Protection
29 29
15 seconds
<HEAT>
5 seconds
Actuator
Compressor LEV
4-way
Outdoor
valve
fan motor