Cleveland Controls DFS-448-452 Sensing Switch
The Cleveland Controls DFS-448-452 is a fixed-set-point air pressure sensing switch designed for critical airflow proving in duct heaters, air handlers, and energy management systems. Engineered for technicians who need a "set and forget" solution, this differential pressure switch features a non-adjustable set point of 0.05" W.C. (+0.025/-0.005"), ensuring precise activation when system pressures rise. Its SPDT snap-acting switch allows for versatile wiring configurations, while the plated housing and silicone diaphragm provide long-term durability in environments ranging from -40°F to 180°F. The DFS-448-452 is equipped with dual-barbed sample line connectors compatible with 3/16" or 1/4" ID flexible tubing, simplifying installation in tight mechanical spaces where internal access is limited. This HVAC airflow proving switch is a reliable choice for monitoring positive, negative, or differential pressure across coils and filters to maintain peak system efficiency.
Key Benefits:- Factory-Calibrated Precision: Fixed at 0.05" W.C. to prevent field tampering and ensure consistent safety interlocking.
- Robust Environmental Range: Operates efficiently in extreme temperatures, making it suitable for both commercial rooftop units and industrial ovens.
- Flexible Tubing Compatibility: Dual-barbed ports eliminate the need for specialized adapters, fitting standard 3/16" or 1/4" tubing.
- Compact Surface Mounting: Zinc-plated flat strap bracket allows for secure installation even in shallow ductwork or crowded control panels.
- High Cycle Life: Rated for a minimum of 100,000 cycles at maximum electrical load for extended service intervals.
- Does this switch support both positive and negative pressure sensing? Yes, the DFS-448-452 can be configured for positive, negative, or differential pressure by connecting to the high (H) or low (L) ports accordingly.
- Can I adjust the set point if the system requirements change? No, this is a non-adjustable model. For applications requiring field adjustment, consider the AFS series.
- What is the proper mounting orientation? To maintain the specified 0.05" W.C. set point, the diaphragm must be mounted in a vertical plane.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Cleveland Controls DFS-448-452 Sensing Switch
The Cleveland Controls DFS-448-452 is a fixed-set-point air pressure sensing switch designed for critical airflow proving in duct heaters, air handlers, and energy management systems. Engineered for technicians who need a "set and forget" solution, this differential pressure switch features a non-adjustable set point of 0.05" W.C. (+0.025/-0.005"), ensuring precise activation when system pressures rise. Its SPDT snap-acting switch allows for versatile wiring configurations, while the plated housing and silicone diaphragm provide long-term durability in environments ranging from -40°F to 180°F. The DFS-448-452 is equipped with dual-barbed sample line connectors compatible with 3/16" or 1/4" ID flexible tubing, simplifying installation in tight mechanical spaces where internal access is limited. This HVAC airflow proving switch is a reliable choice for monitoring positive, negative, or differential pressure across coils and filters to maintain peak system efficiency.
Key Benefits:- Factory-Calibrated Precision: Fixed at 0.05" W.C. to prevent field tampering and ensure consistent safety interlocking.
- Robust Environmental Range: Operates efficiently in extreme temperatures, making it suitable for both commercial rooftop units and industrial ovens.
- Flexible Tubing Compatibility: Dual-barbed ports eliminate the need for specialized adapters, fitting standard 3/16" or 1/4" tubing.
- Compact Surface Mounting: Zinc-plated flat strap bracket allows for secure installation even in shallow ductwork or crowded control panels.
- High Cycle Life: Rated for a minimum of 100,000 cycles at maximum electrical load for extended service intervals.
- Does this switch support both positive and negative pressure sensing? Yes, the DFS-448-452 can be configured for positive, negative, or differential pressure by connecting to the high (H) or low (L) ports accordingly.
- Can I adjust the set point if the system requirements change? No, this is a non-adjustable model. For applications requiring field adjustment, consider the AFS series.
- What is the proper mounting orientation? To maintain the specified 0.05" W.C. set point, the diaphragm must be mounted in a vertical plane.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
The Cleveland Controls DFS-448-452 is a fixed-set-point air pressure sensing switch designed for critical airflow proving in duct heaters, air handlers, and energy management systems. Engineered for technicians who need a "set and forget" solution, this differential pressure switch features a non-adjustable set point of 0.05" W.C. (+0.025/-0.005"), ensuring precise activation when system pressures rise. Its SPDT snap-acting switch allows for versatile wiring configurations, while the plated housing and silicone diaphragm provide long-term durability in environments ranging from -40°F to 180°F. The DFS-448-452 is equipped with dual-barbed sample line connectors compatible with 3/16" or 1/4" ID flexible tubing, simplifying installation in tight mechanical spaces where internal access is limited. This HVAC airflow proving switch is a reliable choice for monitoring positive, negative, or differential pressure across coils and filters to maintain peak system efficiency.
Key Benefits:- Factory-Calibrated Precision: Fixed at 0.05" W.C. to prevent field tampering and ensure consistent safety interlocking.
- Robust Environmental Range: Operates efficiently in extreme temperatures, making it suitable for both commercial rooftop units and industrial ovens.
- Flexible Tubing Compatibility: Dual-barbed ports eliminate the need for specialized adapters, fitting standard 3/16" or 1/4" tubing.
- Compact Surface Mounting: Zinc-plated flat strap bracket allows for secure installation even in shallow ductwork or crowded control panels.
- High Cycle Life: Rated for a minimum of 100,000 cycles at maximum electrical load for extended service intervals.
- Does this switch support both positive and negative pressure sensing? Yes, the DFS-448-452 can be configured for positive, negative, or differential pressure by connecting to the high (H) or low (L) ports accordingly.
- Can I adjust the set point if the system requirements change? No, this is a non-adjustable model. For applications requiring field adjustment, consider the AFS series.
- What is the proper mounting orientation? To maintain the specified 0.05" W.C. set point, the diaphragm must be mounted in a vertical plane.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
