Installation - Piping Diagrams
10
1. Mixing valve with check valve
2. Flow check valve
3. Shut-off valve
4. Backflow preventer or pressure reducing valve(*)
6. Thermal expansion tank
7. Circulator (controlled by aquastat)
8 Domestic drain valve
9. Vacuum Breaker *
(*) Optional devices may be required by local codes.
Domestic Piping with Optional Storage Tank
Fig. 6:
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