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

and 6" stainless steel paddles

making it ideal for baseboard radiation and convector applications where quiet operation is non-negotiable

What are the symptoms of a failing Lennox 80K09 ignitor

TC-1380-E is the cross for TH750AR-340-J7HV

Functional Devices RIBMNLB-4 Board L99H008 Critical Safety Protection: Provides immediateThe 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,