Expansion Valve - Nibe F1245 User Manual

Efficiency
A measurement of how effective the heat pump is. The higher the value is
the better it is.
Electrical addition
This is electricity that, for example, an immersion heater uses as addition
during the coldest days of the year to cover the heating demand that the
heat pump cannot manage.
Emergency mode
A mode that can be selected using the switch in the event of a fault, which
means that the compressor stops. When the heat pump is in emergency
mode, the building and/or hot water is heated using an immersion heater.
Evaporator
Heat exchanger where the refrigerant evaporates by retrieving heat energy
from the brine which then cools.

Expansion valve

Valve that reduces the pressure of the refrigerant, whereupon the temperature
of the refrigerant drops.
Expansion vessel
Vessel with brine or heating medium fluid with the task of equalising the
pressure in the brine or heating medium system.
Fan convectors
A type of convector, but with auxiliary fan that blows hot or cold air into the
accommodation.
Flow pipe
The line in which the heated water is transported from the heat pump out
to the house heating system (radiators/heating coils).
Free cooling
The cold brine from the collector/borehole is used to cool the accommodation.
78 Chapter 6 | Glossary NIBE™ F1245