including Carrier LH33ZS001 through LH33ZS004 models

offering a rugged housing that simplifies overhead installation

For precise airflow monitoring in large-scale VAV terminal units and fan-powered boxes

90V-277V Versatility: A reliable universal hard start kit suitable for a wide range of residential and light commercial HVACR equipment

Safety Restoration: Resolves furnace ignition failure and frequent short-cycling caused by degraded sensor lines

Lochinvar & A.O. Smith 100208383 Pressure Switch including Carrier LH33ZS001 through LH33ZS004The Lochinvar and A. O. Smith 100208383 Pressure Switch is a critical safety component designed for high efficiency water heaters and boiler systems. This SPST (Single Pole Single Throw) switch is calibrated to a 5. 30" WC (Water Column) set point, ensuring precise monitoring of combustion blower performance and venting pressure. Often referenced by legacy part numbers PRS20020 and PRS20020K, this OEM replacement pressure switch ensures the system