and 6" stainless steel paddles

For technicians tasked with maintaining optimal head pressure and airflow in reach-in coolers or display cases

Critical Safety Protection: Provides immediate shutdown during a blocked vent condition to prevent hazardous flue gas spillage into the space

What applications is the 1 5/8" bore size most common for

and a drainage hose

Functional Devices RIBMNLB-4 Board L99H008 and 6" stainless steel paddlesThe Functional Devices RIBMNLB 4 logic board is a field proven AHU fan safety alarm circuit designed to aggregate multiple shutdown signals into a single supervisory point. This 4 input logic module eliminates the need for complex, hand wired relay interlocking by using high density 2. 75 inch track mount housing. Optimized for 24Vac dc power input, the board accepts up to four normally closed (N C) inputstypically from smoke detectors, freeze stats,