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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
and C2500 series heaters
High Durability: Features a nickel plated brass stem and EPDM lubricated O-rings for maintenance-free service in high-cycle applications
and vibration are prevalent
ensuring the ignition sequence only proceeds when proper venting is established
providing precise control without the need for high minimum operating pressure differentials
Hydrolevel 550R Low Water Cut-Off 324846-701 and C2500 series heatersThe Hydrolevel 550R Low Water Cut Off is a heavy duty 120Vac electronic LWCO engineered specifically for technical compliance in commercial hot water boiler applications. Operating as a probe type safety control, the 550R (Part Number 45 552) provides immediate burner shutdown during critical low water conditions to prevent dry firing and catastrophic heat exchanger failure. This model features a manual reset logic that triggers after a sustained 30