Delta PG PLUS-25 Istruzioni per gli Interventi Scaricare il pdf (Pagina 24)

Domestic Piping

Fig. 7: PERFORMANCE PLUS

With Recirculation

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*

Note: All shut off valves

shown in this figure must be

closed when siphon draining

the PERFORMANCE PLUS

* Optional devices may be required by local Codes

Fig. 8: Multiple Units Installation With Recirculation

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 75 76

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Delta PG PLUS-25 Istruzioni per gli Interventi Pagina 24