Venting System Stability: Internal perforated air diffuser design optimizes flue gas flow

Always verify the terminal layout on the existing 024-31602-000 or 024-31636-000 before installation

The Johnson Controls F262KDH-01C Airflow Switch is a heavy-duty SPDT snap-acting PENN switch designed for critical monitoring of air velocity within commercial ductwork

this unit is strictly for closed-loop hydronic applications

Hydrolevel 550R Low Water Cut-Off 323055-751 Venting System Stability: Internal perforatedThe 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