Bosch Singular 4000 - System Application - Zone System with Circulators

24
|
Installation Instructions
Singular Combi Boiler - BTC 439003301 B (2021/07)
4.6.3 System Application – Zone System with Circulators
Figure 20
Check Valve
Zone 1 Zone 2 Zone 3
System pump
Air Separator
Expansion tank Not to exceed 4 pipe Dia or Max. 12 in
Purge Valve