Optimized Condensate Flow: Engineered with a specific internal pitch to promote efficient condensate drainage and minimize standing water

it ensures consistent delivery for optimal combustion efficiency

or the furnace short cycling—shutting down shortly after ignition before reaching the thermostat setpoint

ensuring reliability under pressure surges

Cleveland Controls NS2-1239-00 Pressure Switch L99H008 Optimized Condensate Flow: Engineered withThe Cleveland Controls NS2 1239 00 is an industrial grade air flow pressure sensing switch specifically designed to monitor positive, negative, or differential air pressure in HVAC systems. This fixed set point pressure switch is factory calibrated at . 70" w. c. (inches water column), ensuring high accuracy for critical safety applications such as proving fan flow or detecting filter blockage. Built with a glass filled polycarbonate housing and a