6 Technical data
Installation manual
12
RRGA04~08DAV3
ROTEX HPSU Bi-Bloc Ultra
4P496756-1B – 2018.07
M1F
Fan
R1T
Thermistor (outdoor air)
R2T
Thermistor (heat exchanger)
R3T
Thermistor (compressor discharge)
S1PH
High pressure switch (automatic reset)
Y1E
Electronic expansion valve
Y1S
Solenoid valve (4‑way valve)(ON: cooling)
Heating
Cooling