Is field modification necessary for PTAC units

Optimized for Air Handlers: Specifically designed for HVACR air handling applications

this external equalizer valve adjusts dynamically to load changes

temperature actuated modulating water valve designed specifically for heating applications requiring precise thermal regulation

Quiet Operation: Designed for low-vibration performance and smooth ramping to minimize startup noise in residential ductwork

Lennox 69W55 Pressure Switch Els PW 29614 Is field modification necessary forThe Lennox 69W55 is a critical two stage pressure switch engineered for precision airflow monitoring in high efficiency gas furnaces. Specifically designed as a Lennox OEM replacement part, this 102737 03 switch features dual set points to support staged heating operations: a high pressure set point of 0. 55" W. C. and a low pressure set point of 0. 20" W. C.. As a furnace safety switch, it functions by verifying that the inducer motor is creating