31Installing the System Piping
3.5.3 System Application - Zone System with Pumps (Primary/Secondary Piping)
Make-up Water
Backflow preventer
Pressure reducing valve
Additional Zone
Zone #2
Zone #1
Air Separator
Not to exceed 4 pipe Dia or Max. 12"
Boiler Pump
Expansion Tank
Return filter
Note
●
System application drawings are intended to explain the system piping concept only.
●
Install a filter in the system return to remove foreign objects from the system. Foreign objects inside the system may result in
abnormal system operation.
●
Refer to “3.3 Filling the System” on page 27 for make-up water connections and refer to the requirements of your local codes
to ensure compliance.
●
Use a pump with an integral check valve or install a check valve at the pump outlet.
●
Refer to “3.6.3 Wiring Diagram - Zone Pump System” on page 35 for wiring connections.
To Next Page
Loading...
