Retur n temp
The temperature of the water that returns to the indoor module after releasing
the heat energy to the radiators/heating coils.
Room sensor
A sensor that is located indoors. This sensor tells the indoor module how hot
it is indoors.
Safety valve
A valve that opens and releases a small amount of liquid if the pressure is
too high.
Shunt
A valve that mixes the hot water with a small amount of slightly cooler water.
There is a shunt in the indoor module that mixes the supply water with the
return line so that the heating system reaches the correct temperature.
Shuttle valve
A valve that can send liquid in two directions. A shuttle valve that enables li-
quid to be sent to the climate system, when the heat pump produces heating
for the house, and to the hot water side, when the heat pump produces hot
water.
Supply temperature
The temperature of the heated water that the indoor module sends out to
the heating system. The colder the outdoor temperature, the higher the
supply line temperature becomes.
65NIBE™ VVM 500Chapter 6 | Glossary
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