Trane CNT7026 Display Assy 320788-703 Durable Construction: Built with high-grade

Durable Construction: Built with high-grade materials to withstand the rigorous cycling environment of a gas furnace plenum

If your original part number is HH11AZ230

this relay utilizes calibrated pick-up and drop-out settings—specifically a 320V to 340V pick-up and a 60V to 121V drop-out—to accurately manage the transition between start and run windings

The 17L41 is the current Lennox replacement part for the older 17L40

Featuring a Double Pole Double Throw configuration

Trane CNT7026 Display Assy 320788-703 Durable Construction: Built with high-gradeThe Trane CNT7026 is a professional grade Control Display Assembly designed for precise diagnostics and interface management in commercial and high end residential Trane systems. As an OEM Trane replacement part, this HVAC display module provides technicians with a direct fit interface to monitor critical system parameters including zone temperature, set points, and operational mode symbols. Operating as a primary user interface, the assembly features