v
Figure 21 - Diagram of HUW and CH circulation . open system 1 - boiler, 2 - DHW exchanger , 3 - CH
radiators , 5 - DHW circulation pump , 5 - CH circulation pump , 6 - circulation pump , 7 - three-way mixing
valve , 8 - expansion vessel
3.
Connecting the boiler with a pump group ( WZ + gp , WZO + gp )
Figure 22 - The principle of operation of the pump group ( WZ + gp , WZO + gp ) 1 - Boiler, 2 - DHW, 3 - CH, 4
- Pump, 5 - Safety valve, 6 - Three-way valve, 7 - Bypass, 8 - Manometer, 9 - Expansion vessel , 10 - Filling valve.
Summary of Contents for QUAD 10
Page 11: ......