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Electrical Engineer for HVAC Freeze Stat Product Development (Collab w/ Mechanical Engineer)
Description: We are developing a commercial-grade freeze stat device for the HVAC industry and are looking for an experienced Electrical Engineer to collaborate with our Mechanical Design Engineer. The product is based on vapor-filled capillary sensing and uses microswitch-based relay control to trigger outputs when the sensed temperature falls below the setpoint. You’ll be responsible for the electrical system layout, switch logic validation, and BOM recommendations, with an emphasis on meeting UL, BAA/BABA, and pilot duty requirements. Your Role Includes: Selecting/validating the appropriate microswitch or DPDT relay block Ensuring electrical compliance with UL 873, pilot duty ratings, and 24V AC/DC applications Designing the electrical wiring layout (internal connection to terminal block) Verifying compatibility with mechanical enclosure constraints and mounting Advising on terminal block layout, switching current/voltage specs, and inspection points Supporting labeling for UL/certification compliance Must-Have Skills: Electrical Engineering (HVAC, relay logic, microswitches, 24V AC/DC systems) Understanding of 2xSPDT, DPDT, and 4-wire, 2-circuit switching types Familiarity with UL standards for HVAC controls (esp. UL 873) Strong collaboration skills (you’ll work directly with our mechanical engineer) Experience with HVAC or industrial control devices is a plus Project Details: Estimated Duration: 1–2 months Commitment: Part-time/fractional OK Location: U.S. preferred, Northeast is a bonus Communication: Slack/Zoom/Google Meet Attachments: Full technical requirements sheet (can upload your Excel file) BOM draft Mechanical concept images and capillary example devices Bonus: If you have experience sourcing components or working with UL-recognized vendors, please highlight this in your proposal. https://dynacononline.americommerce.com/dynacononline/NEW-FS-53 https://www.workaci.com/product/460?v=6160 https://www.workaci.com/product/458?v=6144