Lochinvar & A.O. Smith 100208655 Flow Switch 340155-7026 The DS25 Berko switch fits

The DS25 Berko switch fits perfectly into the heater's internal wiring housing

This kit is essential for maintaining the operational integrity of 6 to 25-ton Trane units

Engineered by KMC Controls

Ensure reliable ignition sequences and system safety with the Carrier 48DJ500653 Flame Sensor

Industrial-Grade Piston: Stainless steel shaft prevents bending and maintains smooth linear motion control across the full 2-inch stroke

Lochinvar & A.O. Smith 100208655 Flow Switch 340155-7026 The DS25 Berko switch fitsThe Lochinvar & A. O. Smith 100208655 Flow Switch is a critical safety component designed for Copper Fin II pool heaters and commercial water heating systems. This OEM replacement flow switch features a 2 inch NPT connection and SPST (Single Pole Single Throw) circuitry to provide precise water flow monitoring. By verifying adequate flow before ignition, it prevents dry firing and high limit trips, safeguarding the heat exchanger from thermal stress