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Built with a rugged zinc-plated steel enclosure and a durable silicone diaphragm
backlit digital display for easy reading in low-light utility rooms or dark hallways
Using an incorrect color-coded spring will lead to calibration failures and inaccurate pneumatic valve modulation
For veteran technicians servicing York or Johnson Controls equipment
Lennox 76F73 Relay Built with a rugged zinc-platedThe Lennox 76F73 Relay is a heavy duty, stacked DPST Heat Sequential Relay designed for precise load management in residential and commercial electric furnaces. As a high performance HVAC sequencer replacement, this 240V component ensures the staggered activation of heating elements, preventing excessive inrush current that can trip breakers or damage sensitive control boards. Operating as a normally open relay, the 76F73 is engineered for high cycle
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