Supplied By www.heating spares.co Tel. 0161 620 6677
Page 4
1.0 DESIGN
1.1 INTRODUCTION
Key to Schematic
1. Automatic air vent
2. Anti-vacum valve
3. Blending valve
4. Heating pump
5. PHE pump
6. Plate heat exchanger
7. DHW sensor
8. PHE return sensor
9. Hot water outlet
10. Mains cold water inlet
11. 90º angle isolating ballvalve
12. CA type backflow prevention valve - discharging into a tundish
13. Filling pressure regulating valve
14. Heating flow
15. Heating return
16. 9kW electric flow boiler
17. Boiler pump
18. Pressure relief valve - discharging into CA tundish pipe
19. Expansion vessel
20. Store temperature sensor
21. Store overheat thermostat
22. Electric boiler overheat thermostat
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