Sterling TF125A1NS111 Heater 30067439-890 Contractors should verify the water

Contractors should verify the water column rating on the existing failed switch to ensure a 27W17 Lennox cross-reference matches the specific pressure requirements of the heat exchanger

Enhanced Circuit Management: Provides a structured layout for mounting control parts and sensors

this 3-phase 6KW heat strip provides the reliable thermal output required to maintain setpoints in extreme conditions

this SPST switch should show continuity across the terminals

or chilled water applications within commercial HVAC systems

Sterling TF125A1NS111 Heater 30067439-890 Contractors should verify the waterThe Sterling TF125A1NS111 is a high efficiency, power vented industrial gas unit heater designed for rugged commercial environments like warehouses and large workshops. This 125,000 BTU gas heater features a heavy duty 20 gauge aluminized steel tubular heat exchanger with a serpentine design that eliminates the stress points found in traditional clamshell models, ensuring long term durability under heavy cycling. Utilizing inshot burner technology and