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For contractors demanding reliable flow management in HVAC hydronic systems
High-Durability internal components: Designed to withstand micro-stresses and contaminants commonly found in natural gas lines
the Lennox 21Z23 conversion kit is the standard for transitioning from natural gas to LP (liquid propane)
You can connect either lead to the input terminals on the ETC control board
Cleveland Controls DDP-109-210 Sensing Switch 328140-751 For contractors demanding reliable flowThe 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
