YORK Limit Switch: Mfr Part # S1-7990-3591
SKU 3G-OTH-86531
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Frequently Asked Questions
What is the YORK S1-7990-3591 limit switch used for?
The YORK S1-7990-3591 limit control is a safety device used in HVACR systems to monitor and limit temperature or pressure, preventing equipment damage. It is commonly applied in commercial and industrial heating, ventilation, and air conditioning units to ensure safe operation by interrupting the circuit when conditions exceed set thresholds.
What are the specifications of the YORK S1-7990-3591 limit switch?
The YORK S1-7990-3591 is a limit control with manufacturer part number S1-7990-3591. It is designed as a replacement HVACR control switch. Specific technical ratings such as temperature range or electrical ratings are not provided in the available data; consult the original YORK documentation for detailed specifications.
Where to buy the YORK S1-7990-3591 limit switch worldwide?
3G Electric supplies the YORK S1-7990-3591 limit switch worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this YORK limit control for your HVACR application.
How to install the YORK S1-7990-3591 limit switch?
Install the YORK S1-7990-3591 limit switch by first disconnecting power to the HVACR system. Mount the switch securely in the designated location, typically near the heat exchanger or duct. Connect wiring per the YORK wiring diagram, ensuring proper circuit interruption. Test operation before restoring power.
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Common applications for YORKYORK Products
3G Electric supplies YORK replacement hvacr controls, switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













