The Cleveland Controls AFS-952-55-B Air Pressure Sensing Switch used in HVAC systems. It has an operating range of 0.05-12” WC and an SPDT switch type for sensing pressure changes and turning on/off fans, dampers or other equipment. This switch should be flipped in order to have the right air-moving circulation in HVAC systems. The benefits include stable performance, accurate measurement of pressure, and easy to install in a system, which makes it an element in various HVAC systems to get the optimum control and efficiency.
Cleveland Controls manufactures the AFS-952-55-B, a differential pressure sensing switch. It's used in various industrial and commercial applications to monitor and control air pressure or airflow in ducts, pipes, or other systems. This eliminates annoyance shutdowns brought on by typical pressure changes and enables precise management. The AFS-952-55-B differential pressure sensor switch from Cleveland Controls provides accurate operation and useful features for industrial and commercial air handling applications. It may track the air's and non-combustible gases' positive, negative, or differential pressure (flow). This eliminates annoyance shutdowns brought on by typical pressure changes and enables precise management.
Key features:
Function:
Monitors and controls air pressure or airflow in ducts, pipes, and other systems.
Detects positive, negative, or differential air pressure of air and non-combustible gases.
Technical Specifications:
Adjustable range: Field-adjustable set point range from 0.05" water column (WC) to 12.0" WC for precise customization.
Time delay: An 8-second ± 3-second time delay eliminates annoying shutdowns caused by brief pressure changes.
Durable construction: Built with high-quality materials for reliable and long-lasting performance.
Safety approvals: UL, CSA, CE, and FM certified for safety and reliability.
RoHS compliant: Meets environmental regulations for restricted hazardous substances.
Benefits:
Enhanced safety: Early detection of abnormal pressure conditions prevents equipment damage and potential safety hazards.
Optimized efficiency: Precise airflow control helps optimize system performance and reduce energy consumption.
Automated process control: Enables automated control of processes based on air pressure or flow changes.
Reduced maintenance costs: Minimizes system downtime and maintenance needs by preventing pressure-related issues.
Versatility: Compatible with various applications and control systems in industrial and commercial settings.
Additional Features (may vary depending on model):
External pressure ports for convenient connection to pressure lines.
LED indicator light for visual confirmation of switch status.
Tamper-proof adjustment screw to prevent unauthorized settings changes.
Compact and lightweight design for easy installation.
Remember:
Please refer to the Cleveland Controls website or the product manual for comprehensive installation guidelines, wiring schematics, and specs.
Verify compatibility with your specific application and system requirements before purchasing.
Signs of faulty Cleveland Controls AFS-952-55-B Air Switch:
Abnormal System Operation:
Equipment malfunctions: Unexpected shutdowns, reduced performance, or changes in process operation might indicate the switch isn't sending accurate pressure signals.
Nuisance shutdowns: Frequent system shutdowns due to false triggering from the switch can disrupt operations and require troubleshooting.
Inconsistent pressure readings: If the switch readings deviate significantly from expected values or reference gauges, it could be malfunctioning.
Switch Behavior and Physical Signs:
Stuck switch: The switch remains in either the on or off state regardless of pressure changes, suggesting internal mechanical failure.
Erratic behavior: The switch output fluctuates unpredictably or fails to respond consistently to pressure changes, indicating electrical issues.
Visible damage: Physical damage to the switch housing, pressure ports, or wiring could signify internal component failure or external impact.
Electrical issues: Sparking, burning smell, or overheating near the switch might indicate electrical faults or overload within the unit.
Additional Clues:
Increased maintenance needs: More frequent system checks or component replacements due to pressure-related issues could point to a faulty switch.
Safety concerns: If abnormal pressure conditions go undetected due to a faulty switch, it could pose potential safety hazards depending on the system and application.
Remember:
If you suspect a faulty Cleveland Controls AFS-952-55-B, shut down the system immediately and contact a qualified technician for diagnosis and repair. Do not attempt to fix the switch yourself unless you have the necessary expertise and safety qualifications.
Ignoring these signs can lead to further equipment damage, process disruptions, and potential safety risks.
Choose the best HVAC equipment parts and supplies from PartsHnC!
