RETURN TEMP
The temperature of the water that returns to the electric boiler/indoor
module after releasing the heat energy to the radiators/heating coils.
ROOM SENSOR
A sensor that is located indoors. This sensor tells the electric boiler/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.
SHUTTLE VALVE
A valve that can send liquid in two directions. A shuttle valve that enables
liquid 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 electric boiler/indoor
module sends out to the heating system. The colder the outdoor temper-
ature, the higher the supply line temperature becomes.
87Chapter 6 | GlossaryNIBE VVM 225