Nibe F2040 Technical Manual

4-way valve function
A B
Vacuum from the suction side
Over pressure from the hot gas side
1.
When the current is broken a spring presses the piston to the left.
2.
This opens the gas pressure to chamber B and releases the pressure in chamber A.
3.
The slide moves to the left which changes how the refrigerant moves. In this case it runs directly from evaporator
to suction gas.
A
B
Vacuum from the suction side
Over pressure from the hot gas side
1.
When the current is switched on a solenoid pulls the piston to the right.
2.
This opens the gas pressure to chamber A and releases the pressure in chamber B.
3.
The slide moves to the right which changes how the refrigerant moves. In this case it runs directly from suction
gas to condenser.
33Chapter 5 | Component descriptionNIBE™ F2040

Nibe F2040 Specifications

General

Type	Air/water heat pump
Refrigerant	R410A
Operating Temperature Range Heating	-20°C to 35°C
Operating Temperature Range Cooling	10°C to 46°C
Sound Power Level	56-62 dB(A) (depending on model)