OUTDOOR UNIT
B-100
ACTUA
TOR
CONTROL
S series
OUTDOOR
UNIT
Discharge temperature thermistor
Indoor pipe temperature thermistor
Defrost thermistor
Fin temperature thermistor
Ambient temperature thermistor
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)
Compressor
LEV
Outdoor
fan motor
Indoor
fan motor
Defrost
heater
RV-coil
Sensor
Actuator
Discharge temperature thermistor
Indoor pipe temperature thermistor
Defrost thermistor
Fin temperature thermistor
Ambient temperature thermistor
Outdoor heat exchanger temperature
Purpose
Protection
Cooling: Coil frost prevention
Heating: High pressure protection
Heating: Defrosting
Protection
Protection
Cooling: High pressure protection
Compressor
LEV
Outdoor
fan motor
4-way
valve
Sensor
Actuator
3. Relation between main sensor and actuator
SUZ-KA25VA SUZ-KA35VA
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
Compressor
5 seconds
15 seconds
ON
OFF
Compressor
Outdoor fan
motor
R.V.coil
ON
OFF
ON
OFF
<COOL>
5 seconds
<HEAT>
5 seconds
ON or OFF
ON or OFF
SUZ-KA50VA SUZ-KA60VA SUZ-KA71VA
B.3.6 ACTUATOR CONTROL
SUZ-KA25VA SUZ-KA35VA SUZ-KA50VA SUZ-KA60VA SUZ-KA71VA
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.