The first two digits of the serial denote the week

Manufactured to ASME B16

Common Questions: How do I verify if my Trane limit switch is faulty

The Copeland Comfort Control (Alco) 065875

Optimized Airflow: The 24-degree pitch is specifically calibrated for high-static pressure environments

Laars Heating Systems V0049900 Valve 320074-702 The first two digits ofThe Laars Heating Systems V0049900 Valve is a 1 inch, 24V combination natural gas control designed for high demand hydronic applications. This OEM Laars replacement part is engineered specifically for Mighty Therm boiler models, specifically the 325 400 series (including HH, PH, VW, and PW configurations). Operating with a 4" WC manifold pressure, this valve ensures precise fuel regulation and consistent ignition cycles in commercial and residential