Cleveland Controls DDP-109-210 Sensing Switch R-134A an "open" reading typically indicates

an "open" reading typically indicates a fractured element requiring replacement

outlet range for medium-pressure requirements

Robust synchronous motor design delivers a consistent 25-second opening time and a 9-second fail-safe closure

By integrating advanced SMART SYSTEM boiler control circuitry

This module is essential for resolving HVAC blower motor failure symptoms such as erratic fan speeds

Cleveland Controls DDP-109-210 Sensing Switch R-134A an "open" reading typically indicatesThe 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