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The MAMAC Systems PR-275-R2-VDC is a high-precision differential pressure transducer designed for critical building automation systems
or the igniter failing to glow while receiving 120V from the control board
The NPT threaded connections and 1-3/8 inch bonnet size allow for seamless integration with Honeywell linear actuators
This is an electronic digital replacement
With a pick-up voltage range of 132 to 148V and a massive hold voltage of 332V
Zonefirst ZDB-10X12 10HX12W Parallel 24V 2-Pos S/R Els PW 29614 The MAMAC Systems PR-275-R2-VDC isThe Zonefirst ZDB 10X12 is a professional grade parallel blade zone damper engineered for precise airflow management in residential and commercial 24V zoning systems. This 10HX12W bottom mount damper features a heavy duty extruded aluminum frame and 3 inch parallel blades, ensuring minimal static pressure drop while maintaining a rigid structure across the duct opening. Driven by a 24V spring return motor, the unit is factory configured for power