This control module is engineered for compatibility with various DSI gas furnace systems and boilers

reducing labor time during heat exchanger installation

Precision Safety: Maintains the integrity of the flame rectification circuit

allowing technicians to establish a precise deadband for complex control circuits that require distinct high and low actuation points

If the motor or blower wheel is also failing

Conbraco 21-205-00 Gauge 321894-708 This control module is engineeredExperienced technicians understand that reliable liquid level monitoring is critical for boiler and pressure vessel performance. The Conbraco 21 205 00 Gauge is a professional grade rough bronze water gauge set designed for high demand environments. This assembly features 1 2" NPT male connections and extended shanks to ensure a secure fit and easy installation in standard boiler setups. The unit is equipped with a 5 8" OD x 12" length standard glass