Integrated Tool Port: Simplifies field servicing by providing a direct access point for commissioning tools and diagnostic equipment

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

and a drainage hose

What are the symptoms of a failing Lennox 80K09 ignitor

installing a strainer upstream helps maintain the integrity of the 1

Functional Devices RIBMNLB-4 Board L99H008 Integrated Tool Port: Simplifies fieldThe 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,