Remove the hexagon cap screw at the top of the indicator stem and use a screwdriver to turn the adjusting screw

OEM Compatibility: Specifically designed to match Reznor unit heater specifications

Common Questions Is the MCS-S-P a direct replacement for the K-503

This tee fits 5/8" nominal copper pipe

Is the 2521302S compatible with my specific furnace model

Warrick 26MC1M0E Liquid Level Control Freon Remove the hexagon cap screwThe Warrick 26MC1M0E Liquid Level Control is a professional grade, solid state low water cutoff (LWCO) solution engineered for demanding commercial and industrial boiler applications. Operating on a 120Vac supply voltage, this conductivity based level control is a critical component for maintaining compliance with CSD1 boiler safety standards. This specific module features a 26,000 ohm sensitivity and utilizes a direct acting mode of operation,