
Utica-Dunkirk 240007897 Transformer
The Utica-Dunkirk 240007897 Transformer is a heavy-duty 120V primary to 24V secondary step-down component engineered specifically for ECR International brands, including Dunkirk DXL Series II and various Utica boiler models. This 40VA control transformer (also rated at 47a/3va in specific configurations) facilitates reliable electromagnetic induction to power 24VAC control circuits, including gas valves, ignition modules, and low-voltage thermostats. As a critical HVAC replacement part, this Basler transformer (often identified as BE33783001) ensures precise voltage regulation required to maintain the logic of the control board and prevent relay chatter. Designed for direct foot mount or plate mount applications, it integrates seamlessly into existing wiring harnesses to restore factory-spec electrical isolation. Whether you are troubleshooting a boiler not firing or replacing a burnt-out 24-volt transformer, this OEM component provides the specific impedance and inrush current handling necessary for high-efficiency hydronic systems. This boiler transformer is the standard for forced hot water repairs in commercial and residential ECR International equipment.
Key Benefits- Exact OEM Compatibility: Verified for Dunkirk DXL and Utica boiler control circuits, eliminating field-mod issues.
- High Signal Stability: The 120vPri 24vSec ratio provides clean power to sensitive electronics, reducing diagnostic callbacks.
- Versatile Mounting: Supports standard HVAC transformer mounting footprints for rapid installation in tight boiler jackets.
- Industrial Grade Construction: Built to withstand the high-temperature environment of an active heat exchanger and boiler cabinet.
- Optimized Power Rating: Rated for 40VA to handle the combined load of the spark pilot kit and control relays without saturation.
What is the primary indicator that this transformer requires replacement?
If you measure 120V at the primary leads but zero voltage across the R and C terminals on the control board, the internal windings have failed. Technicians should also check the boiler fuse to ensure a short in the 24V circuit didn't trip before the transformer failed.
Can this 40VA transformer replace a 30VA model?
Yes, you can upgrade to a higher VA rating if the voltage specs match. This 240007897 transformer provides a higher overhead, which helps prevent thermal failure in systems with modern smart thermostats or multiple zone valves.
Is this compatible with other ECR International brands?
This part is a documented replacement part for Pennco and Utica Heating units. Always verify your system's wiring schematic to ensure matching primary voltage taps before energizing the circuit.
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.
Original: $36.93
-65%$36.93
$12.93Utica-Dunkirk 240007897 Transformer
The Utica-Dunkirk 240007897 Transformer is a heavy-duty 120V primary to 24V secondary step-down component engineered specifically for ECR International brands, including Dunkirk DXL Series II and various Utica boiler models. This 40VA control transformer (also rated at 47a/3va in specific configurations) facilitates reliable electromagnetic induction to power 24VAC control circuits, including gas valves, ignition modules, and low-voltage thermostats. As a critical HVAC replacement part, this Basler transformer (often identified as BE33783001) ensures precise voltage regulation required to maintain the logic of the control board and prevent relay chatter. Designed for direct foot mount or plate mount applications, it integrates seamlessly into existing wiring harnesses to restore factory-spec electrical isolation. Whether you are troubleshooting a boiler not firing or replacing a burnt-out 24-volt transformer, this OEM component provides the specific impedance and inrush current handling necessary for high-efficiency hydronic systems. This boiler transformer is the standard for forced hot water repairs in commercial and residential ECR International equipment.
Key Benefits- Exact OEM Compatibility: Verified for Dunkirk DXL and Utica boiler control circuits, eliminating field-mod issues.
- High Signal Stability: The 120vPri 24vSec ratio provides clean power to sensitive electronics, reducing diagnostic callbacks.
- Versatile Mounting: Supports standard HVAC transformer mounting footprints for rapid installation in tight boiler jackets.
- Industrial Grade Construction: Built to withstand the high-temperature environment of an active heat exchanger and boiler cabinet.
- Optimized Power Rating: Rated for 40VA to handle the combined load of the spark pilot kit and control relays without saturation.
What is the primary indicator that this transformer requires replacement?
If you measure 120V at the primary leads but zero voltage across the R and C terminals on the control board, the internal windings have failed. Technicians should also check the boiler fuse to ensure a short in the 24V circuit didn't trip before the transformer failed.
Can this 40VA transformer replace a 30VA model?
Yes, you can upgrade to a higher VA rating if the voltage specs match. This 240007897 transformer provides a higher overhead, which helps prevent thermal failure in systems with modern smart thermostats or multiple zone valves.
Is this compatible with other ECR International brands?
This part is a documented replacement part for Pennco and Utica Heating units. Always verify your system's wiring schematic to ensure matching primary voltage taps before energizing the circuit.
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.
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Description
The Utica-Dunkirk 240007897 Transformer is a heavy-duty 120V primary to 24V secondary step-down component engineered specifically for ECR International brands, including Dunkirk DXL Series II and various Utica boiler models. This 40VA control transformer (also rated at 47a/3va in specific configurations) facilitates reliable electromagnetic induction to power 24VAC control circuits, including gas valves, ignition modules, and low-voltage thermostats. As a critical HVAC replacement part, this Basler transformer (often identified as BE33783001) ensures precise voltage regulation required to maintain the logic of the control board and prevent relay chatter. Designed for direct foot mount or plate mount applications, it integrates seamlessly into existing wiring harnesses to restore factory-spec electrical isolation. Whether you are troubleshooting a boiler not firing or replacing a burnt-out 24-volt transformer, this OEM component provides the specific impedance and inrush current handling necessary for high-efficiency hydronic systems. This boiler transformer is the standard for forced hot water repairs in commercial and residential ECR International equipment.
Key Benefits- Exact OEM Compatibility: Verified for Dunkirk DXL and Utica boiler control circuits, eliminating field-mod issues.
- High Signal Stability: The 120vPri 24vSec ratio provides clean power to sensitive electronics, reducing diagnostic callbacks.
- Versatile Mounting: Supports standard HVAC transformer mounting footprints for rapid installation in tight boiler jackets.
- Industrial Grade Construction: Built to withstand the high-temperature environment of an active heat exchanger and boiler cabinet.
- Optimized Power Rating: Rated for 40VA to handle the combined load of the spark pilot kit and control relays without saturation.
What is the primary indicator that this transformer requires replacement?
If you measure 120V at the primary leads but zero voltage across the R and C terminals on the control board, the internal windings have failed. Technicians should also check the boiler fuse to ensure a short in the 24V circuit didn't trip before the transformer failed.
Can this 40VA transformer replace a 30VA model?
Yes, you can upgrade to a higher VA rating if the voltage specs match. This 240007897 transformer provides a higher overhead, which helps prevent thermal failure in systems with modern smart thermostats or multiple zone valves.
Is this compatible with other ECR International brands?
This part is a documented replacement part for Pennco and Utica Heating units. Always verify your system's wiring schematic to ensure matching primary voltage taps before energizing the circuit.
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.












