34 Installing the System Piping
3.6.3 System Application - Zone System with Pumps (Primary/Secondary Piping)
Make-up Water
Additional Zone
Zone #2
Zone #1
Air Separator
Not to exceed 4 pipe Dia or Max. 12"
Pressure
Relief
Valve
Expansion Tank
NaviClean
(recommended)
Pressure
reducing valve
Backflow
preventer
Note
●
System application drawings are intended to explain the system piping concept only.
●
Install a NaviClean 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 “3.4 Filling the System” on page 29 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 “3.7.3 Wiring Diagram - Zone Pump System” on page 41 for wiring connections.
Summary of Contents for NCB-190/060H
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