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WWSP 335 - WWSP 770
6.7 Connection diagram
Fig. 6.1:Water-side connection of a domestic hot water cylinder.
6.8 Legend
1
Isolating valve
2
Pressure reducing valve
3
Test valve
4
Non-return valve
5
Pressure gauge connecting piece
6
Drain valve
7
Safety valve
8
Circulation pump
9
Outlet
376760 / 372840 / 370080 / 376730 · FD 9801
Domestic hot water
Circulation (if necessary)
Heating water return
Cold water connection according to DIN 1988
Valid for all cylinders
Heating water flow
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