User manual
6 Terms and abbreviations
Table 11. Terms and abbreviations
Term Explanation
Evaporator In the evaporator, energy is retreived from the heat source
and the refrigerant passing through the evaporator turns
to gas.
De-superheater In the de-superheater part of the total heating output is
released (approx. 15%). A higher temperature than the
normal condensation temperature can found here.
Integral INTEGRAL is the heating system’s energy balance. Heat
generation is controlled by a calculated requirement. This
value is determined by comparing the actual supply tem-
perature with its calculated supply temperature. The dif-
ference between the temperatures is added over time.
The resulting value is referred to as the integral. The inte-
gral is calculated automatically. The value of the integral
can be viewed in the display under the sub-menu TEM-
PERATURE.
Compressor The compressor raises the temperature and pressure of
the refrigerant.
Condenser In the condenser, the refrigerant supplies its heat energy
to the heat transfer fluid circuit.
Curve The CURVE value is set via the display. The set value is the
calculated set point value of the flow line at outdoor tem-
perature of 0°C.
Brine Is a water based mixture that transports energy from the
heat source to the heat pump.
Brine circuit The fluid circuit transports energy from the heat source to
the heat pump.
Refrigerant circuit Is the circuit in the heat pump that through evaporation,
compression and condensation takes energy from the
brine circuit and supplies it to the heat transfer fluid circuit.
Refrigerant Is the fluid that transports heat from the brine circuit and
supplies it to the heat transfer fluid circuit.
Radiator Heater element, element.
26 – User manual VUGFA102










