Disturbances in comfort
Disturbances in comfort means unwanted changes in hot water comfort,
e.g. that the temperature of the hot water is too low.
A malfunction in the heat pump can sometimes be noticed in the form of
a disturbance in comfort.
In most cases, the heat pump notes operational interference and indicates
this with alarms and shows instructions in the display.
Evaporator
Heat exchanger where the refrigerant evaporates by retrieving heat energy
from the air which then cools.
Expansion valve
Valve that reduces the pressure of the refrigerant, whereupon the temper-
ature of the refrigerant drops.
Heat exchanger
Device that transfers heat energy from one medium to another without
mixing mediums. Examples of different heat exchangers are evaporators
and condensers.
Mixing valve
A valve that mixes the cold water with the hot water leaving the heater.
Refrigerant
Substance that circulates around a closed circuit in the heat pump and
that, through pressure changes, evaporates and condenses. During evap-
oration, the refrigerant absorbs heating energy and during condensing,
gives off heating energy.
Supply temperature
The temperature of the heated water that the heat pump sends out to
the heating system. The colder the outdoor temperature, the higher the
supply line temperature becomes.
NIBE™ F110Chapter 6 | Glossary38
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