Functional Devices TR40VA013 Transformer technicians should inspect the combustion

technicians should inspect the combustion area for actual flame rollout before assuming a component failure

Why is the plate size 7-1/4 inches

this furnace high-limit replacement features a bimetallic disc that breaks the electrical circuit once the ceiling temperature is reached

replacing a failed diaphragm with this genuine 632491R Nordyne part restores the critical safety loop between the draft inducer and the ignition control board

Broad Compatibility: Direct OEM replacement for Trane and American Standard units

Functional Devices TR40VA013 Transformer technicians should inspect the combustionThe Functional Devices TR40VA013 is a multi tap 40VA control transformer engineered for versatility in demanding HVACR and industrial automation environments. This step down transformer features primary voltage taps for 480 277 240 208Vac, converting line power to a stable 120Vac secondary output. Built for durability, it includes an integrated circuit breaker for reliable overcurrent protection, eliminating the need for external fusing in many