Expansion valve
■
The refrigerant is vaporised by reducing the ambient pressure.
■
The expansion valve controls the liquid refrigerant flow (480 pulses from completely open to completely closed).
Refrigerant
Coil
Solenoid
Needle
valve
Refrigerant
Other components
ConnectionWorking temp.Pressure rangeComponent
Soldered connection-30 – +85 °CBreaking value: 41.5 barHigh pressure switch (BP1)
(63H1)
Max pressure: 45 bar
(4.5 MPa)
Reset value: 31.5 bar
1/4'' flare connection with
Schrader valve.
Surrounding area: -30 – +100
°C
1 – 46 bar (0.1 – 4.6 MPa)High pressure sensor (BP4)
Measurement medium: -30
– +120 °C
1/4'' flare connection with
Schrader valve,
Cut-out value 0.79 bar
Reset value: 1.75 bar
Low pressure sensor (LPT)
VoltageOutputOhmComponent
230 V100 W529 ΩF2040-8:
Bottom drain pan heater (EB 11)
39Chapter 5 | Component descriptionNIBE™ F2040
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