Ultra boiler components . . .
1. | Cast aluminum heat exchanger | 15. | Gas connection pipe |
2. | Exchanger access cover | 16. | PhD Control Module |
3. | Blower | 16a. Top front cover | |
4. | Gas valve | 17. | Transformer |
4a. | Manual gas valve | 18. | Air intake adapter |
4b. | Gas valve sensing line | 19. | Electrical entrance cover plate |
5. | Venturi | 19a. Low voltage terminal strip | |
5a. | Air inlet silencer | 19b. Line voltage terminal strip | |
6. | Flue gas sensor | 20. | Boiler drain valve |
7. | Outlet water temperature sensor | 21. | Line voltage receptacle |
8. | Return water temperature sensor | 22. | P/T gauge temperature sensor well |
9. | Temperature and pressure gauge | 23. | Condensate drain connection |
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10. | Electronic display & buttons | 23a. | Condensate trap |
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10a. | On/off Power switch | 24. | Front door |
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11. | Flue pipe adapter | 24a. | Thumb screws |
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12. | Burner | 25. | Ignitor electrode |
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13. | Water outlet pipe (system supply) | 26. | Flame inspection window |
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14. | Water return pipe (system return) | 27. | Data port |
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10 | Part number |
