
Siemens Building Technology 243-0024 Reversing Relay
The Siemens Building Technology 243-0024 Reversing Relay is an essential pneumatic component designed for precise signal inversion within building automation systems. Built with a glass-filled nylon housing for professional-grade durability, this reverse-acting pneumatic relay delivers a proportional output signal that varies inversely with the input. Engineered for high-demand environments, the unit features a field-adjustable spring range of 10 to 30 psi, allowing technicians to calibrate a specific reverse-acting schedule. With a force-balance operation that significantly minimizes air consumption (29 SCIM for compressor sizing), this relay ensures optimal pneumatic efficiency. It includes an internal relief mechanism for fail-safe performance and provides a high air capacity of 230 SCIM to effectively amplify air volume and reduce system lag. Whether utilized for dual-purpose heating and cooling coils or as a signal inverting relay for damper actuators, the 243-0024 offers a compact, lightweight solution that can be surface or branch mounted in any orientation using the included bracket.
Key Benefits- Versatile Signal Inversion: Seamlessly reverses controller signals to match terminal equipment operation or inverts signals for split-coil heating/cooling applications.
- Optimized Air Management: High 230 SCIM capacity ensures rapid response while the force-balance design prevents unnecessary air waste.
- Robust Calibrated Control: The adjustable spring range allows for precise field tuning using a standard 5/64-inch hex wrench.
- Compact & Flexible Installation: Lightweight construction and universal mounting options simplify retrofits in tight control cabinets.
How do I adjust the reverse acting schedule on the 243-0024?
Using accurate gauges on both the input and output lines, use a 5/64-inch hex wrench to rotate the adjustment screw. Increase or decrease the spring tension until the output pressure aligns with your specific application requirements at the desired input signal.
Can this relay be used in systems with high vibration?
While the unit features a rugged glass-filled nylon body, it should be installed in areas free from excessive vibration or corrosive atmospheres to maintain long-term calibration accuracy and diaphragm integrity.
What are the port requirements for the pneumatic lines?
The relay is equipped with barbed nipples designed for 1/4-inch O.D. polyethylene tubing. Ensure the supply air is clean, dry, and oil-free to prevent clogging of the internal force-balance mechanisms.
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.
Siemens Building Technology 243-0024 Reversing Relay
The Siemens Building Technology 243-0024 Reversing Relay is an essential pneumatic component designed for precise signal inversion within building automation systems. Built with a glass-filled nylon housing for professional-grade durability, this reverse-acting pneumatic relay delivers a proportional output signal that varies inversely with the input. Engineered for high-demand environments, the unit features a field-adjustable spring range of 10 to 30 psi, allowing technicians to calibrate a specific reverse-acting schedule. With a force-balance operation that significantly minimizes air consumption (29 SCIM for compressor sizing), this relay ensures optimal pneumatic efficiency. It includes an internal relief mechanism for fail-safe performance and provides a high air capacity of 230 SCIM to effectively amplify air volume and reduce system lag. Whether utilized for dual-purpose heating and cooling coils or as a signal inverting relay for damper actuators, the 243-0024 offers a compact, lightweight solution that can be surface or branch mounted in any orientation using the included bracket.
Key Benefits- Versatile Signal Inversion: Seamlessly reverses controller signals to match terminal equipment operation or inverts signals for split-coil heating/cooling applications.
- Optimized Air Management: High 230 SCIM capacity ensures rapid response while the force-balance design prevents unnecessary air waste.
- Robust Calibrated Control: The adjustable spring range allows for precise field tuning using a standard 5/64-inch hex wrench.
- Compact & Flexible Installation: Lightweight construction and universal mounting options simplify retrofits in tight control cabinets.
How do I adjust the reverse acting schedule on the 243-0024?
Using accurate gauges on both the input and output lines, use a 5/64-inch hex wrench to rotate the adjustment screw. Increase or decrease the spring tension until the output pressure aligns with your specific application requirements at the desired input signal.
Can this relay be used in systems with high vibration?
While the unit features a rugged glass-filled nylon body, it should be installed in areas free from excessive vibration or corrosive atmospheres to maintain long-term calibration accuracy and diaphragm integrity.
What are the port requirements for the pneumatic lines?
The relay is equipped with barbed nipples designed for 1/4-inch O.D. polyethylene tubing. Ensure the supply air is clean, dry, and oil-free to prevent clogging of the internal force-balance mechanisms.
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.
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Description
The Siemens Building Technology 243-0024 Reversing Relay is an essential pneumatic component designed for precise signal inversion within building automation systems. Built with a glass-filled nylon housing for professional-grade durability, this reverse-acting pneumatic relay delivers a proportional output signal that varies inversely with the input. Engineered for high-demand environments, the unit features a field-adjustable spring range of 10 to 30 psi, allowing technicians to calibrate a specific reverse-acting schedule. With a force-balance operation that significantly minimizes air consumption (29 SCIM for compressor sizing), this relay ensures optimal pneumatic efficiency. It includes an internal relief mechanism for fail-safe performance and provides a high air capacity of 230 SCIM to effectively amplify air volume and reduce system lag. Whether utilized for dual-purpose heating and cooling coils or as a signal inverting relay for damper actuators, the 243-0024 offers a compact, lightweight solution that can be surface or branch mounted in any orientation using the included bracket.
Key Benefits- Versatile Signal Inversion: Seamlessly reverses controller signals to match terminal equipment operation or inverts signals for split-coil heating/cooling applications.
- Optimized Air Management: High 230 SCIM capacity ensures rapid response while the force-balance design prevents unnecessary air waste.
- Robust Calibrated Control: The adjustable spring range allows for precise field tuning using a standard 5/64-inch hex wrench.
- Compact & Flexible Installation: Lightweight construction and universal mounting options simplify retrofits in tight control cabinets.
How do I adjust the reverse acting schedule on the 243-0024?
Using accurate gauges on both the input and output lines, use a 5/64-inch hex wrench to rotate the adjustment screw. Increase or decrease the spring tension until the output pressure aligns with your specific application requirements at the desired input signal.
Can this relay be used in systems with high vibration?
While the unit features a rugged glass-filled nylon body, it should be installed in areas free from excessive vibration or corrosive atmospheres to maintain long-term calibration accuracy and diaphragm integrity.
What are the port requirements for the pneumatic lines?
The relay is equipped with barbed nipples designed for 1/4-inch O.D. polyethylene tubing. Ensure the supply air is clean, dry, and oil-free to prevent clogging of the internal force-balance mechanisms.
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.












