
Lennox 19F33 Heater Kit
The Lennox 19F33 (model ECB29-20F-G) is a high-capacity 20KW electric heater kit engineered for seamless integration into 440-480V 3-phase HVAC systems. Designed with helix-wound nichrome heating elements, this module ensures immediate heat transfer and optimized airflow performance in compatible Lennox air handlers. For field installation, this kit utilizes a stable terminal block connection for secure high-voltage wiring, eliminating the need for complex internal modifications when used with the appropriate CBA27UHE, CBX27UH, or CBX32M series cabinets. Each electric heat section features a primary limit control to manage thermal limits and an automatic reset for consistent operational reliability.
When installing the 19F33 heater kit, verified contractors must ensure the minimum circuit ampacity (MCA) aligns with the unit's nameplate requirements. This 460V 3-phase assembly provides supplemental electric heat that is essential for maintaining setpoints in demanding commercial or residential environments. Technical precision in the terminal block layout facilitates a straightforward power connection, while the inclusion of nichrome elements directly in the airstream minimizes temperature lag and maximizes thermal output during peak calls for heat.
Key Benefits- High-KW Thermal Capacity: Delivers 20 kilowatts of supplemental heat for large-scale air handling applications.
- Durable Nichrome Construction: Helix-wound elements provide rapid heat exchange and consistent performance.
- OEM Compatibility: Specifically designed for Lennox 460V 3-phase systems, ensuring a precise fit within the cabinet.
- Integrated Safety Protection: Features primary and secondary thermal limit controls for high-temperature protection.
- Direct Airflow Exposure: Elements are positioned for maximum efficiency and reduced operational strain on the blower motor.
Which air handlers are compatible with the ECB29-20F-G?
This kit is typically paired with Lennox CBA27UHE, CBX27UH, and CBX32M series units. Always verify the voltage (460/480V) and phase requirements of your specific air handler before installation.
Does this heater kit include circuit breakers?
No, the 19F33 is a terminal block ("F" designation) model. If your application requires a built-in circuit breaker, you must look for the "CB" equivalent or provide field-installed disconnects according to local NEC codes.
What modifications are needed for 20KW installation?
Most compatible cabinets require removing the extended width knockout to accommodate the 20KW element size. Ensure the heating elements do not rub against the sheet metal during insertion to prevent electrical grounding.
This item is not eligible for free shipping.
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.
Lennox 19F33 Heater Kit
The Lennox 19F33 (model ECB29-20F-G) is a high-capacity 20KW electric heater kit engineered for seamless integration into 440-480V 3-phase HVAC systems. Designed with helix-wound nichrome heating elements, this module ensures immediate heat transfer and optimized airflow performance in compatible Lennox air handlers. For field installation, this kit utilizes a stable terminal block connection for secure high-voltage wiring, eliminating the need for complex internal modifications when used with the appropriate CBA27UHE, CBX27UH, or CBX32M series cabinets. Each electric heat section features a primary limit control to manage thermal limits and an automatic reset for consistent operational reliability.
When installing the 19F33 heater kit, verified contractors must ensure the minimum circuit ampacity (MCA) aligns with the unit's nameplate requirements. This 460V 3-phase assembly provides supplemental electric heat that is essential for maintaining setpoints in demanding commercial or residential environments. Technical precision in the terminal block layout facilitates a straightforward power connection, while the inclusion of nichrome elements directly in the airstream minimizes temperature lag and maximizes thermal output during peak calls for heat.
Key Benefits- High-KW Thermal Capacity: Delivers 20 kilowatts of supplemental heat for large-scale air handling applications.
- Durable Nichrome Construction: Helix-wound elements provide rapid heat exchange and consistent performance.
- OEM Compatibility: Specifically designed for Lennox 460V 3-phase systems, ensuring a precise fit within the cabinet.
- Integrated Safety Protection: Features primary and secondary thermal limit controls for high-temperature protection.
- Direct Airflow Exposure: Elements are positioned for maximum efficiency and reduced operational strain on the blower motor.
Which air handlers are compatible with the ECB29-20F-G?
This kit is typically paired with Lennox CBA27UHE, CBX27UH, and CBX32M series units. Always verify the voltage (460/480V) and phase requirements of your specific air handler before installation.
Does this heater kit include circuit breakers?
No, the 19F33 is a terminal block ("F" designation) model. If your application requires a built-in circuit breaker, you must look for the "CB" equivalent or provide field-installed disconnects according to local NEC codes.
What modifications are needed for 20KW installation?
Most compatible cabinets require removing the extended width knockout to accommodate the 20KW element size. Ensure the heating elements do not rub against the sheet metal during insertion to prevent electrical grounding.
This item is not eligible for free shipping.
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 Lennox 19F33 (model ECB29-20F-G) is a high-capacity 20KW electric heater kit engineered for seamless integration into 440-480V 3-phase HVAC systems. Designed with helix-wound nichrome heating elements, this module ensures immediate heat transfer and optimized airflow performance in compatible Lennox air handlers. For field installation, this kit utilizes a stable terminal block connection for secure high-voltage wiring, eliminating the need for complex internal modifications when used with the appropriate CBA27UHE, CBX27UH, or CBX32M series cabinets. Each electric heat section features a primary limit control to manage thermal limits and an automatic reset for consistent operational reliability.
When installing the 19F33 heater kit, verified contractors must ensure the minimum circuit ampacity (MCA) aligns with the unit's nameplate requirements. This 460V 3-phase assembly provides supplemental electric heat that is essential for maintaining setpoints in demanding commercial or residential environments. Technical precision in the terminal block layout facilitates a straightforward power connection, while the inclusion of nichrome elements directly in the airstream minimizes temperature lag and maximizes thermal output during peak calls for heat.
Key Benefits- High-KW Thermal Capacity: Delivers 20 kilowatts of supplemental heat for large-scale air handling applications.
- Durable Nichrome Construction: Helix-wound elements provide rapid heat exchange and consistent performance.
- OEM Compatibility: Specifically designed for Lennox 460V 3-phase systems, ensuring a precise fit within the cabinet.
- Integrated Safety Protection: Features primary and secondary thermal limit controls for high-temperature protection.
- Direct Airflow Exposure: Elements are positioned for maximum efficiency and reduced operational strain on the blower motor.
Which air handlers are compatible with the ECB29-20F-G?
This kit is typically paired with Lennox CBA27UHE, CBX27UH, and CBX32M series units. Always verify the voltage (460/480V) and phase requirements of your specific air handler before installation.
Does this heater kit include circuit breakers?
No, the 19F33 is a terminal block ("F" designation) model. If your application requires a built-in circuit breaker, you must look for the "CB" equivalent or provide field-installed disconnects according to local NEC codes.
What modifications are needed for 20KW installation?
Most compatible cabinets require removing the extended width knockout to accommodate the 20KW element size. Ensure the heating elements do not rub against the sheet metal during insertion to prevent electrical grounding.
This item is not eligible for free shipping.
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.












