Is this the correct replacement for the older FM1D20A-120 model

Key Benefits for Contractors System Compatibility: Direct-fit manual option for the Honeywell 301EM controller and expansion units

Robust SPST construction: Features a durable snap-disc mechanism for high-cycle reliability in demanding HVAC environments

A digital manometer is recommended for final verification

Common Questions Is the 1087952 compatible with my older 1087515 board

Fenwal 35-665535-011 Ignition Module Els PW 17895 Is this the correct replacementThe Fenwal 35 665535 011 Ignition Module is a high performance, microprocessor based 24 VAC hot surface ignition control designed for heavy duty gas fired equipment, including boilers, furnaces, and water heaters. Engineered to manage the full combustion sequence, this module integrates safe start logic, flame sensing, and blower relay control into a single, compact unit. As a three try ignition model, it provides improved reliability in demanding