9
Installation - Piping Diagrams
1. Shut-off valve
2. Flow check valve
3. Mixing valve with check valve
4. Vacuum Breaker *
5. Unions
6. Backflow preventer or pressure reducing valve(*)
7. Circulator (controlled by aquastat)
8 Domestic drain valve
9. Thermal expansion tank (potable)
(*) Optional devices may be required by local codes.
Standard Installation Domestic Piping Excellence Series
Fig. 4:
Standard Installation Domestic Piping with Optional Recirculation Excellence Series
Fig. 5: