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2.0 GENERAL LAYOUT
6
Publication No. 5111811
2.1 Layout
1. Air Pressure Switch
2. Expansion Vessel
3. Burner Manifold
4. Automatic Air Vent
5. DHW Plate Heat Exchanger
6. Circulation Pump
7. Drain Off Point
8. Pressure Relief Valve
9. Optional Integral Timer Position
10. Central Heating System Pressure Gauge
11. Control PCB
12. Control Box
13. 3-Way Valve Assembly
14. Condensate Trap
15. Flame Sensing Electrode
16. Spark Electrode
17. Burner
18. Primary Heat Exchanger
19. Fan Assembly
20. Secondary Heat Exchanger
21. On / Off / Reset Selector Switch
22. Burner & Fault Indicator Neon
23. Power Neon
24. Flame Failure & Fault Indicator Neon
25. Central Heating Temperature Control
26. Hot Water Temperature Control
19
18
17
14
15
16
13
12
11
10
9
21 22 23
24
25 26 10 9
7
6
3
4
5
8
2
1
2
1
0
4
3
bar
Reset
Burner On
Flame Failure
Power On
Performa 24 Eco HE
Fig. 2
Fig. 3
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