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the Lennox 21Z23 conversion kit is the standard for transitioning from natural gas to LP (liquid propane)
High-Durability internal components: Designed to withstand micro-stresses and contaminants commonly found in natural gas lines
is a high-performance full-port ball valve engineered for critical maintenance of hydronic heating systems
You can connect either lead to the input terminals on the ETC control board
Cleveland Controls DDP-109-210 Sensing Switch 328140-751 the Lennox 21Z23 conversion kitThe Cleveland Controls DDP 109 210 is a heavy duty dual setpoint differential air pressure switch designed for critical proving and alarm functions in HVAC and energy management systems. This unit features two independently adjustable SPDT snap acting switches mounted on a single foot bracket, allowing for a precise adjustable deadband or the monitoring of two distinct pressure sources. The silicone diaphragm and rugged metallic housing ensure
