Mitsubishi Electric M Series Manual page 213

M series
m-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
motor
m-3. Relation between main sensor and actuator
MUZ-FD25/35VA
Sensor
Discharge temperature thermistor
Indoor coil temperature thermistor
Defrost thermistor
Fin temperature thermistor
Ambient temperature thermistor
Outdoor heat exchanger temperature thermistor
MUZ-FD25/35VABH
Sensor
Discharge temperature thermistor
Indoor coil temperature thermistor
Defrost thermistor
Fin temperature thermistor
Ambient temperature thermistor
Outdoor heat exchanger temperature thermistor
<COOL>
5 seconds
ON
OFF
ON
OFF
ON
OFF
Purpose
Protection
Cooling: Coil frost prevention
Heating: High pressure protection
Cooling: High pressure protection
Heating: Defrosting
Protection
Cooling: Low ambient temperature operation
Low outside temperature operation
Purpose
Protection
Cooling : Coil frost prevention
Heating : High pressure protection
Cooling : High pressure protection
Heating : Defrosting
Protection
Cooling : Low ambient temperature operation
Heating : Defrosting (Heater)
Low outside temperature operation
WALL-MOUNTED MSZ-FD•VA/S Series
<HEAT>
5 seconds
Actuator
Outdoor fan
Compressor LEV
○ ○
○
○ ○
○ ○
○ ○
○
○ ○
○ ○
Actuator
Outdoor
Compressor LEV
fan motor
○ ○
○
○ ○
○ ○ ○
○ ○ ○
○ ○
○ ○ ○
○ ○ ○
Indoor fan
R.V. coil
motor motor
○
○
○ ○ ○
○
○
○
Indoor fan Defrost
R.V. coil
motor heater
○ ○
○
C-211