Trane MOD2686 Stepper Module R-410A High Flow Capacity: Large diaphragm

High Flow Capacity: Large diaphragm area and 3/4" orifice support high-demand HVAC gas pressure regulation

high-performance solution for supplemental or emergency heating requirements

an annual service utilizing a fresh OEM tune-up kit is the industry standard to prevent combustion chamber failure and maintain peak AFUE ratings

a pilot adjustment key

Trane MOD2686 Stepper Module R-410A High Flow Capacity: Large diaphragmThe Trane MOD2686 Stepper Module (identical to MOD02686) is a critical OEM replacement part designed for precision control in high performance HVAC equipment. This stepper module with motor serves as the driving force for electronic expansion valves (EEV) and precision dampers, commonly found in Trane chillers like the RTAC, Series R, and Sintesis models. By converting digital signals from the main control board into discrete mechanical steps, the