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B-070343_EN • B
P
roduct
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nstallatIon
Typical Hydraulic Connections - Heating Circuit
i
Isolating valve
Filling valve
Draining valve
Check valve
Expansion vessel
Removable fi lling hose
Circulating pump
Drain
Safety group (automatic air relief
valve, manometer, safety valve), con-
nected to the drain
Fig. 18. Typical Heating System
To make maintenance easier, we recommend to remove the plug from one of the drain con-
nection and install a draining valve
(see Fig. 3 and Fig. 4).