7
1. TITOLO
GB
GB
2. INSTALLATION ISTRUCTIONS
Expansion kettle sizing
Values in liters relative to:
- preload pressure equal to 2.5 bar
- safety valve calibration pressure equal to 6.0 bar
- expansion from 10 to 90 ° C.
Expansion tank
volume (I)
Model tank
300
500
1000
1500
2000
40°C
4,0
7,1
13,8
21,2
30,1
50°C
6,4
11,2
21,6
33,2
47,3
60°C
9,1
16,0
30,9
47,3
67,5
70°C
12,2
21,4
41,4
63,5
90,5
80°C
15,6
27,5
53,1
81,4
116,0
90°C
19,8
34,0
65,8
100,8
143,7
Storage temperature
The following is decisive for the validity of the guarantee.
1. Installation must:
- To be performed by a qualified installer.
- Provide, where necessary, a pressure reducer for incoming water.
- Provide a safety valve calibrated according to what is stated on
the technical data label applied on the boiler.
- Provide an expansion vessel (see expansion vessel dimensioning
table) commensurate with the dimensions of the boiler (it is advisable
to have the calculation performed by a thermo technician).
2. The temperature of the contents of the boiler must always be below
95 °C.
3. As is known, the contact between different metals can give rise to
corrosion phenomena.
In this sense, it is advisable to place a suitable dielectric joint
between the connections in the boiler and the corresponding pipes.
4. The electrical conductivity of the water must not be less than 150 μS/
cm or more than 1000 μS/cm.
