Hart Cooley 659T-20X20-W Return Grille 320788-702 Industrial Build Quality: Robust solenoid

Industrial Build Quality: Robust solenoid construction handles high-cycle demand in commercial gas heating applications

This HVAC comfort control includes an integrated humidity sensor

Is field calibration required after mounting

reliable ignition of the burner assembly

the element is likely cracked or chemically degraded and requires replacement

Hart Cooley 659T-20X20-W Return Grille 320788-702 Industrial Build Quality: Robust solenoidThe Hart Cooley 659T 20X20 W is a commercial grade return air filter grille specifically engineered for standard 24x24 T bar ceiling grid systems. Built with heavy duty all steel construction, this 20x20 nominal size unit features a lanced face design with a 1 3 inch fin spacing set at a 20 degree angle to provide a sight proof appearance while maintaining optimal face velocity. Contractors value the flush, removable face equipped with concealed