35
Installing the System Piping
3.6.4 System Application - Zone System with Zone Valves (Primary/Secondary Piping)
Additional Zone
Zone #2
Zone #1
Air Separator
NaviClean
(recommended)
Not to exceed 4 pipe Dia or Max. 12”
Expansion Tank
System Pump
Zone Valve
(Typical)
Pressure reducing valve
Backflow preventer
Make-up Water
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 “3.7.5 Wiring Diagram - Zone Valve System” on page 45 for wiring connections.
Summary of Contents for NCB-190/060H
Page 141: ...141 Appendixes 12 6 4 Fan Gas Assembly 10 9 12 8 7 3 1 2 4 5 6 13 11 11 14 15...
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