41
ENGLISH
TECHNICAL ASSISTANCE SERVICE
SETTING DOMESTIC HOT WATER
TEMPERATURE
Domestic hot water temperature is preset to 44°C in the
factory.
Adjust the thermostatic mixer valve to change this value.
The following table shows the hot water temperature val-
ues for the different mixer valve knob positions.
Once you have set the required domestic hot water tem-
perature, you can lock the adjustment knob of the mixer
valve to prevent further tampering.
To do so, unscrew the fixing screw from the top of the
knob and pull off the knob. Fit the knob again so that the
keyway in the knob's body engages with the key in the
valve cap.
Reference conditions:
Hot water temperature = 68°C
Cold water temperature = 13°C
Hot and cold water inlet pressure = 3 bar
Knob
position
Min 1
2
3
4
5
6
7 Max
Temperature
(°C)
27 32 38 44 49 53 58 63 67
∆p (bar)
1,5
∆p (m c.a.)
10
20
50
0,
5
1
2
5
Flow rate
(l/min) (
m
3
/h
)
5
0,
2
1,0
0,5
0,3
0,2
0,1
0,05
15
10
5
3
2
1
0,5
Kv = 2,6 (m
3
/h)
Mixer valve pressure drop
MIN
MAX
7
1
2
3
20
40 60 80
100
4
3 2 1
0
0
120
Cold water
DHW
user
points
Domestic hot water from the
SOLAR STORAGE CYLINDER
