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19
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: A1002237 - 661Y1300 • B
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STARTING UP
FILLING
Essential instructions for the correct operation of the installation
•
The DHW tank must always be filled and pressurised before filling and pressurising
the primary circuit.
FILLING THE DHW TANK (Figure 1)
General remark
•
Connect the safety valve outlet to the sewer.
1.
To fill the tank, open a hot water tap (
2
) located at the highest point of the installation. It
enables to bleed the air from the installation.
2.
Close the stop valve (
3
) of the auxiliary DHW loop if it is installed.
3.
Open the filling valve (
1
) and the stop valves (4) to fill the DHW tank.
4.
Close the hot water tap (
2
), after the water flow has stabilised and the air has been
completely evacuated.
5.
Check all the connections of the installation for leaks.
1
2
4
4
Figure 1
3
Cold water
Hot water
