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MUZ-D30NA MUZ-D36NA MUY-D30NA MUY-D36NA
8-3. 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
Defrosting
○
○
○
○
○
Fin temperature thermistor
Protection
○
○
Outdoor heat exchanger temperature
Protection
○
○
○
Ambient temperature thermistor
Cooling: Low ambient temperature operation
○
○
○
8-2. R.V. COIL CONTROL
<MUZ>
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
Outdoor fan
motor
ON
OFF
<COOL>
5 seconds
<HEAT>
5 seconds
R.V.coil
ON
OFF
ON or OFF
ON or OFF
8-1. 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.
8
ACTUATOR CONTROL
