Nordyne 620825R Control TransformerNordyne 620825R is a compact control transformer built for HVAC systems. It provides a 120V input and a 24V secondary, delivering up to 20 VA to power thermostats, relays, and control circuits. This reliable HVAC transformer is designed for durable operation in typical field conditions and fits in tight electrical panels where space is at a premium. Key advantages include clean isolation between the high voltage mains and the low voltage control side,

it minimizes compatibility issues and downtime

the Armstrong 38M45 delivers consistent performance from a 208/240 VAC supply to a 24 VAC secondary

and the hysteresis synchronous motor ensures long life

the valve supports natural gas and LP gas configurations with precise regulation: 3

this thermocouple offers stable sensing

the 30033837-001 diaphragm emphasizes consistent sealing

2-inch linear travel for precise control

ensuring compatibility with your existing pump assembly

Pressure rating: 600 PSIG working pressure

it minimizes downtime and lets service professionals complete repairs quickly

and long service life—helping minimize maintenance downtime and maximize burner efficiency

and brass seat and trim ensure long-lasting operation in demanding environments