Nordyne 621709R Transformer check your equipment’s schematics for

check your equipment’s schematics for specific voltage ratings

which translates to quieter operation and improved electrical integrity in demanding environments

Always verify the part number in your specific unit's wiring diagram

19 inches long

the switch opens the electrical circuit to the gas valve

Nordyne 621709R Transformer check your equipment’s schematics forThe Nordyne 621709R Transformer is a heavy duty 40VA control transformer engineered specifically for residential and light commercial HVAC equipment. Designed with a 208 240V primary and a 24V secondary output, this step down transformer provides the stable low voltage power necessary for thermostats, contactors, and integrated furnace control boards. This HVAC replacement part is the current manufacturer authorized upgrade for legacy models including