Reznor 194808 Transformer

The Reznor 194808 Transformer is a high-grade 120V to 24V step-down transformer specifically engineered for long-term reliability in commercial and industrial HVAC unit heaters. As a critical OEM replacement part, it ensures the control circuit receives a stable 24V AC output, which is essential for powering gas valves, ignition modules, and thermostats. Rated at 40VA, this Class 2 transformer provides sufficient volt-ampere capacity to manage standard low-voltage loads without the risk of saturation or secondary voltage drop. Its robust construction is designed to withstand the high-temperature environments typical of Reznor heating equipment, such as the UDX or UDAP series. For technicians, installing a genuine Reznor 194808 ensures exact physical mounting alignment and primary lead compatibility, reducing field labor and preventing common "no heat" calls caused by faulty low-voltage power supplies.

• Precise Voltage Conversion: Efficiently steps down 120VAC line voltage to standard 24VAC for secondary control circuits.
• 40VA Capacity: Delivers ample power for modern electronic ignition systems and multi-stage gas valves.
• OEM Compatibility: Guaranteed fit for an extensive range of Reznor unit heaters and air handlers.
• Durable Core Design: Heavy-duty laminations and windings minimize humming and heat generation during high-demand cycles.

Is the Reznor 194808 compatible with older Reznor units?
Yes, this 40VA transformer is the standard replacement for most older Reznor gas-fired units requiring a 120V primary. Always verify the VA requirements of your specific control circuit before installation.

What causes a transformer like the 194808 to burn out?
Most failures are caused by a downstream short in the 24V circuit, often at the thermostat or gas valve. We recommend checking for low-voltage shorts before replacing the transformer to prevent repeat failure.

Can I use a 20VA transformer instead of this 40VA model?
No. Using a lower VA rating can lead to overheating and failed ignition sequences. The 40VA rating of the 194808 ensures the system has the necessary overhead for localized control components.

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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.