Mitsubishi Electric M-SERIES, Manual

Page: 227 / 586

WALL-MOUNTED MSZ-HC•VA/B Series M series
OPERA
TION
AND
ACTUA
TOR CONTROL
W
ALL-
MOUNTED
C-225
h-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.
ON
OFF
ON
OFF
Outdoor fan
motor
Compressor
5 seconds 15 seconds
ON
OFF
Compressor
Outdoor fan
motor
R.V.coil
ON
OFF
ON
OFF
<COOL>
5 seconds
<HEAT>
5 seconds
h. ACTUATOR CONTROL
h-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.
h-3. Relation between main sensor and actuator
Sensor Purpose
Actuator
Compressor LEV
Outdoor fan
motor
R.V. coil
Indoor fan
motor
Discharge temperature thermistor Protection
○ ○
Indoor coil temperature thermistor
Cooling: Coil frost prevention
○
Heating: High pressure protection
○
Defrost thermistor
Cooling: High pressure protection
○ ○ ○
Heating: Defrosting
○ ○ ○ ○ ○
Fin temperature thermistor Protection
○ ○
MUZ-HC35