User's Information Manual - Weil-McLain
User's Information Manual - Weil-McLain
User's Information Manual - Weil-McLain
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GAS-FIRED WATER BOILER SERIES 2 — User’s <strong>Information</strong> <strong>Manual</strong>Ultra boiler components . . .1. Cast aluminum heat exchanger15. Gas connection pipe2. Exchanger access cover16. PhD Control Module3. Blower16a. Top front cover4. Gas valve17. Transformer4a. <strong>Manual</strong> gas valve18. Air intake adapter4b. Gas valve sensing line19. Electrical entrance cover plate5. Venturi19a. Low voltage terminal strip5a. Air inlet silencer19b. Line voltage terminal strip6. Flue gas sensor20. Boiler drain valve7. Outlet water temperature sensor21. Line voltage receptacle8. Return water temperature sensor22. P/T gauge temperature sensor well9. Temperature and pressure gauge10. Electronic display & buttons10a. On/off Power switch11. Flue pipe adapter12. Burner13. Water outlet pipe (system supply)14. Water return pipe (system return)23. Condensate drain connection(½" PVC tee)23a. Condensate trap24. Front door24a. Thumb screws25. Ignitor electrode26. Flame inspection window27. Data port10Part number 550-100-027/0404
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