Description
The Cleveland Controls AFS-275 Air Pressure Sensing Switch is used in HVAC systems. This SPDT switch is capable of measuring air pressure with an accuracy of 0.05” to 2.0” water column. It functions based on pressure variations inside the system of ventilation and conditioning. When the pressure measured goes higher than the set high-pressure limit, the switch turns on and may sound an alarm or operate an auxiliary system part. When the pressure falls below the low-pressure limit, the switch flips to the other position to enable correct system adjustments.
