Instructions
DEN-GT
VI.CW.C1.02 / LUK40110
© Danfoss 04/2011
7
Termix VMTD-F-B - substation for direct HE and DHW
Control
Differential pressure controller
The differential pressure controller smooths out the
fluctuations in pressure arriving from the district
heating network. The operating pressure in the
substation is thus held steady.
TP7000
TP7000 electronic 7 day programmable room
thermostat.
Signals from this can be used to control zone
valves.
DHW temperature control
There are various types of DHW temperature control
used in Danfoss substations.
DHW temperature should be adjusted to 45-50 °C,
as this provides optimal utilisation of DH water. At
DHW temperatures above 55 °C, the possibility of
lime scale deposits increases significantly.
Thermostatic control
DHW temperature is adjusted as follows:
To increase temperature, turn the handle on
the thermostatic controller to select a higher
number.
To decrease temperature, turn the handle on the
thermostatic controller to select a lower number.
AVTB controller (20-60 °C)
The temperature setting is as follows:
1 = 20 °C
4 = 60 °C
2 = 35 °C
5 = 70 °C
3 = 50 °C
The AVTB operates at its best at DH supply
temperatures of up to 90°C.
The values are intended as a guide.
