Compressor
Compresses the gas state refrigerant. When the refrigerant is compressed,
the pressure and the temperature increase.
Condenser
Heat exchanger where the hot gas state refrigerant condenses (cooled
and becomes a liquid) and releases heat energy to the house heating and
hot water systems.
COP
If it is stated that a heat pump has COP 4, this means, in principle that if
you insert 10 pence, you will get 40 pence worth of heat. It is the efficiency
of the heat pump. This is measured at different measurement values, e.g.:
7/45 where 7 stands for the outdoor temperature and 45 for how many
degrees the supply temperature is.
Defrosting
A short process that periodically thaws ice on the evaporator using heat
from the heating medium. Large quantities of condensation water can
occur and must be routed away.
Disturbances in comfort
Disturbances in comfort are undesirable changes to the hot water/indoor
comfort, for example when the temperature of the hot water is too low
or if the indoor temperature is not at the desired level.
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 malfunctions and indicates this with
alarms in the display.
Domestic hot water
The water one showers in for example.
Double-jacketed tank
A heater with domestic hot water (tap water) is surrounded by an outer
vessel with boiler water (to the house radiators/elements). The heat pump
heats the boiler water, which in addition to going out to the all the house
radiators/elements, heats the domestic hot water in the inner vessel.
NIBE™ F2040Chapter 5 | Glossary22
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