Cleveland Controls AFS-460-121 M/R Air Pressure Sensing Switch W/Accessories 0.4-12" WC

The Cleveland Controls AFS-460-121 Air Pressure Sensing Switch that is used to measure air pressure within a range of 0.4-12” WC. This manual reset switch is essential in HVAC systems such as air handlers, chillers, and boilers. It operates based on changes in pressure and when the pressure varies from the set point, the switch turns on to initiate a control action or sound an alarm. It also guarantees adequate cross ventilation to reduce pressure build-up that threatens equipment besides enhancing system operation efficiency. Some of the benefits include safety by avoiding over or under pressurization, energy efficiency by maintaining the right airflow, and expense effectiveness by avoiding potential equipment problems in HVAC systems.