Mitsubishi Electric MXZ-A14WV Service Manual page 51

11-6.LOW OUTSIDE TEMPERATURE OPERATION
Unlike the usual fan control, the number of rotation is controlled to let the temperature of the outdoor heat exchanger become
around 40: when the unit is operating in COOL mode at low outside temperature.
<Details of Fan Control>
(a) The number of rotation will be increased when the temperature of the outdoor heat exchanger is high.
(b) The number of rotation will be decreased when the temperature of the outdoor heat exchanger is low.
The number of rotation will be lowered to around 100 rpm (rotation per minute) when just a few indoor units are operating or
when the outside temperature is low.
When the number of rotation is lowered to around 100 rpm, the fan may stop by the influence of wind, but restarts 30
seconds later.
11-7.RELATION BETWEEN MAIN SENSOR AND ACTUATOR
Relation between main sensor and actuator.
MXZ-A14WV, MXZ-A18WV
Sensor
Discharge temperature thermistor
Indoor pipe temperature thermistor
Defrost thermistor
Evaporation temperature thermistor
Gas pipe temperature thermistor
Fin temperature thermistor
High-pressure protect thermistor
Capacity code
MXZ-A26WV, MXZ-A32WV
Sensor
Discharge temperature thermistor
Indoor pipe temperature thermistor
Defrost thermistor
Evaporation temperature thermistor
Gas pipe temperature thermistor
Fin temperature thermistor
Outdoor heat exchanger temperature
Capacity code
Purpose
Compressor
Protection
Defrosting Protection
Defrosting
Control
Control
Protection
Protection
Control
Purpose
Compressor
Protection
Defrosting Protection
Defrosting
Control
Control
Protection
Protection
Control
51
Actuator
Outdoor Reversing
LEV
fan motor valve
Actuator
Outdoor Reversing
LEV
fan motor valve