Laars Heating Systems R2080403 Control
The Laars Heating Systems R2080403 Control is a critical engineering solution for upgrading legacy Rheos+ boiler control platforms. This FX05 to Watlow conversion kit is designed for the field-replacement of obsolete Johnson Controls FX05 modules, integrating the more robust and precise Watlow temperature control architecture into existing hydronic and commercial heating systems. As a veteran-grade HVAC internal control replacement, this kit ensures seamless communication between system sensors and the firing rate logic, maintaining high-efficiency thermal regulation without requiring a full appliance overhaul.
This conversion package includes the necessary Laars R2080403 hardware—specifically the Watlow interface, a dedicated metal mounting plate, and a high-accuracy sensor well. For technicians performing this boiler control system upgrade, the kit simplifies the migration from 10-pin quick-release plugs to the updated 3-terminal snap-fit configuration. By utilizing Laars factory-authorized parts, contractors can eliminate the drift associated with aging FX05 components, ensuring stable set-point management and reliable HVAC temperature regulation in demanding industrial and commercial boiler rooms.
- Direct Retrofit Compatibility: Engineered specifically to replace the obsolete FX05 module on Laars Rheos+ units with minimal field modification.
- Precise Thermal Management: Employs advanced Watlow algorithms for superior temperature set-point stability and system responsiveness.
- Complete Integration Kit: Includes the Watlow controller, mounting hardware, blue wire harness with sensor, and a detailed ladder diagram decal for accurate rewiring.
- Industrial-Grade Build: Constructed with heavy-duty materials to withstand the high-temperature environments typical of commercial mechanical rooms.
- Efficiency Optimization: Restores factory-spec automation and monitoring, reducing short-cycling and optimizing fuel consumption.
Common Questions
Is the R2080403 a direct plug-and-play for the FX05?
While the kit is designed for this specific migration, it requires cutting and prepping wires from the original 10-pin plug to interface with the new Watlow green terminals. A new sensor well must also be installed as the system temperature sensors are upgraded as part of this kit.
Can I use my existing FX05 sensors with the new Watlow control?
No. This Laars control conversion includes a new blue wire harness and sensor. To ensure accurate resistance readings and proper signal processing, the sensors provided in the kit must be used.
What tools are required for the installation?
Technicians should have a drill with a 1/8-inch bit for mounting the new plate, sheet metal cutting tools for minor bracket adjustments, and standard electrical tools for terminal connections.
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.
Laars Heating Systems R2080403 Control
The Laars Heating Systems R2080403 Control is a critical engineering solution for upgrading legacy Rheos+ boiler control platforms. This FX05 to Watlow conversion kit is designed for the field-replacement of obsolete Johnson Controls FX05 modules, integrating the more robust and precise Watlow temperature control architecture into existing hydronic and commercial heating systems. As a veteran-grade HVAC internal control replacement, this kit ensures seamless communication between system sensors and the firing rate logic, maintaining high-efficiency thermal regulation without requiring a full appliance overhaul.
This conversion package includes the necessary Laars R2080403 hardware—specifically the Watlow interface, a dedicated metal mounting plate, and a high-accuracy sensor well. For technicians performing this boiler control system upgrade, the kit simplifies the migration from 10-pin quick-release plugs to the updated 3-terminal snap-fit configuration. By utilizing Laars factory-authorized parts, contractors can eliminate the drift associated with aging FX05 components, ensuring stable set-point management and reliable HVAC temperature regulation in demanding industrial and commercial boiler rooms.
- Direct Retrofit Compatibility: Engineered specifically to replace the obsolete FX05 module on Laars Rheos+ units with minimal field modification.
- Precise Thermal Management: Employs advanced Watlow algorithms for superior temperature set-point stability and system responsiveness.
- Complete Integration Kit: Includes the Watlow controller, mounting hardware, blue wire harness with sensor, and a detailed ladder diagram decal for accurate rewiring.
- Industrial-Grade Build: Constructed with heavy-duty materials to withstand the high-temperature environments typical of commercial mechanical rooms.
- Efficiency Optimization: Restores factory-spec automation and monitoring, reducing short-cycling and optimizing fuel consumption.
Common Questions
Is the R2080403 a direct plug-and-play for the FX05?
While the kit is designed for this specific migration, it requires cutting and prepping wires from the original 10-pin plug to interface with the new Watlow green terminals. A new sensor well must also be installed as the system temperature sensors are upgraded as part of this kit.
Can I use my existing FX05 sensors with the new Watlow control?
No. This Laars control conversion includes a new blue wire harness and sensor. To ensure accurate resistance readings and proper signal processing, the sensors provided in the kit must be used.
What tools are required for the installation?
Technicians should have a drill with a 1/8-inch bit for mounting the new plate, sheet metal cutting tools for minor bracket adjustments, and standard electrical tools for terminal connections.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Laars Heating Systems R2080403 Control is a critical engineering solution for upgrading legacy Rheos+ boiler control platforms. This FX05 to Watlow conversion kit is designed for the field-replacement of obsolete Johnson Controls FX05 modules, integrating the more robust and precise Watlow temperature control architecture into existing hydronic and commercial heating systems. As a veteran-grade HVAC internal control replacement, this kit ensures seamless communication between system sensors and the firing rate logic, maintaining high-efficiency thermal regulation without requiring a full appliance overhaul.
This conversion package includes the necessary Laars R2080403 hardware—specifically the Watlow interface, a dedicated metal mounting plate, and a high-accuracy sensor well. For technicians performing this boiler control system upgrade, the kit simplifies the migration from 10-pin quick-release plugs to the updated 3-terminal snap-fit configuration. By utilizing Laars factory-authorized parts, contractors can eliminate the drift associated with aging FX05 components, ensuring stable set-point management and reliable HVAC temperature regulation in demanding industrial and commercial boiler rooms.
- Direct Retrofit Compatibility: Engineered specifically to replace the obsolete FX05 module on Laars Rheos+ units with minimal field modification.
- Precise Thermal Management: Employs advanced Watlow algorithms for superior temperature set-point stability and system responsiveness.
- Complete Integration Kit: Includes the Watlow controller, mounting hardware, blue wire harness with sensor, and a detailed ladder diagram decal for accurate rewiring.
- Industrial-Grade Build: Constructed with heavy-duty materials to withstand the high-temperature environments typical of commercial mechanical rooms.
- Efficiency Optimization: Restores factory-spec automation and monitoring, reducing short-cycling and optimizing fuel consumption.
Common Questions
Is the R2080403 a direct plug-and-play for the FX05?
While the kit is designed for this specific migration, it requires cutting and prepping wires from the original 10-pin plug to interface with the new Watlow green terminals. A new sensor well must also be installed as the system temperature sensors are upgraded as part of this kit.
Can I use my existing FX05 sensors with the new Watlow control?
No. This Laars control conversion includes a new blue wire harness and sensor. To ensure accurate resistance readings and proper signal processing, the sensors provided in the kit must be used.
What tools are required for the installation?
Technicians should have a drill with a 1/8-inch bit for mounting the new plate, sheet metal cutting tools for minor bracket adjustments, and standard electrical tools for terminal connections.
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.
