Installation / Operation Instruction Manual

Internet Version for Reference Only
1) Install a properly sized expansion tank. An air separator and vent is recommended to eliminate air in
the system.
2) A pressure reducing valve is recommended for installation to maintain appropriate pressure in the
closed loop system.
3) The circulator should be installed to “pump away” from the expansion tank as shown.
4) Purge all air from the filled, closed system.
Figure 2 – Hydronic Piping with Zone Valves
Figure 3 – Hydronic Piping with Circulators and Flow Control Valves
238-46299-00A REV 08/06