Reznor 103497 Transformer

The Reznor 103497 Transformer is a critical multi-tap induction component designed for reliable HVAC 24V control circuit power distribution. This 40VA Class 2 transformer serves as the direct replacement for Reznor 164328, ensuring seamless integration into existing unit heaters and furnaces without requiring modification to the mounting footprint. Engineered for versatile field application, it supports primary input configurations of 120V, 208V, and 240V, stepping down to a consistent 24V secondary output. The robust internal windings are built to handle the inductive load demands of solenoid valves, contactors, and relays common in commercial Reznor units. For technicians performing Reznor heater troubleshooting, replacing a failed 164328 with this OEM-spec 103497 ensures long-term electrical stability and protects downstream low-voltage components from voltage fluctuations. This multi-tap HVAC transformer is a staple for maintaining high-efficiency performance in industrial heating systems where precise voltage regulation is mandatory.

• Universal Primary Voltage: Supports 120/208/240V inputs, reducing the need to carry multiple specific-voltage transformers on the service truck.
• OEM Compatibility: Functionally identical to the discontinued 164328, maintaining the UL listing and safety integrity of the original equipment.
• 40VA Power Rating: Provides ample VA capacity to drive modern smart thermostats and multiple gas valves simultaneously.
• Foot-Mount Design: Features standard mounting holes for quick installation inside the unit electrical cabinet.

Is the 103497 a drop-in replacement for the 164328?
Yes, this is the official manufacturer-designated substitute. It maintains the same electrical specifications and physical dimensions as the older 164328 part number.

Can this transformer be used with 480V systems?
No, this specific model is limited to 120/208/240V primary inputs. Using it on a 480V leg will cause immediate component failure.

Why is my transformer humming or running hot?
Excessive heat or noise typically indicates an over-amped secondary circuit. Verify that the total VA draw of your connected components does not exceed the 40VA rating.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.