Lochinvar & A.O. Smith 100208655 Flow Switch
The Lochinvar & A.O. Smith 100208655 Flow Switch is a critical safety component designed for Copper Fin II pool heaters and commercial water heating systems. This OEM replacement flow switch features a 2-inch NPT connection and SPST (Single Pole Single Throw) circuitry to provide precise water flow monitoring. By verifying adequate flow before ignition, it prevents dry-firing and high-limit trips, safeguarding the heat exchanger from thermal stress and catastrophic failure. As a direct replacement for the legacy WTR20003K part number, this switch ensures seamless integration with existing control boards and field piping.
Engineered for high-demand environments, the 100208655 pool heater flow switch utilizes a durable paddle mechanism that responds to specific GPM thresholds required for safe operation. This genuine Lochinvar flow switch kit is compatible with a wide range of models, including the CPN0502 and CPN1442 series. Using OEM HVACR parts like this ensures the unit maintains its original efficiency ratings and safety certifications, providing contractors with a reliable "drop-in" solution that eliminates the calibration issues common with universal aftermarket switches.
- OEM Compatibility: Exact replacement for Lochinvar and A.O. Smith part number 100208655 and WTR20003K.
- Critical Safety Protection: Prevents heater operation during low-flow conditions to protect the heat exchanger.
- Industrial Build: Features a rugged 2" NPT housing and SPST switch for long-term reliability in chemically treated pool water.
- Versatile Application: Validated for use across the Copper Fin II product line.
Common Questions
What are the symptoms of a failing flow switch in a Lochinvar heater?
Common indicators include "No Flow" error codes on the digital display, frequent cycling, or the heater failing to ignite despite the pump being active. Always check for scale buildup on the paddle before replacing the assembly.
Can I use this switch on a 1.5-inch plumbing line?
This specific model is designed with a 2-inch NPT thread. While bushings can be used, we recommend maintaining the specified pipe diameter to ensure the flow velocity correctly triggers the paddle mechanism per manufacturer specifications.
Is the paddle included with the 100208655 kit?
Yes, this is a complete flow switch assembly designed for immediate field installation into the heater's flow sensing port.
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: $219.81
-65%$219.81
$76.93Lochinvar & A.O. Smith 100208655 Flow Switch
The Lochinvar & A.O. Smith 100208655 Flow Switch is a critical safety component designed for Copper Fin II pool heaters and commercial water heating systems. This OEM replacement flow switch features a 2-inch NPT connection and SPST (Single Pole Single Throw) circuitry to provide precise water flow monitoring. By verifying adequate flow before ignition, it prevents dry-firing and high-limit trips, safeguarding the heat exchanger from thermal stress and catastrophic failure. As a direct replacement for the legacy WTR20003K part number, this switch ensures seamless integration with existing control boards and field piping.
Engineered for high-demand environments, the 100208655 pool heater flow switch utilizes a durable paddle mechanism that responds to specific GPM thresholds required for safe operation. This genuine Lochinvar flow switch kit is compatible with a wide range of models, including the CPN0502 and CPN1442 series. Using OEM HVACR parts like this ensures the unit maintains its original efficiency ratings and safety certifications, providing contractors with a reliable "drop-in" solution that eliminates the calibration issues common with universal aftermarket switches.
- OEM Compatibility: Exact replacement for Lochinvar and A.O. Smith part number 100208655 and WTR20003K.
- Critical Safety Protection: Prevents heater operation during low-flow conditions to protect the heat exchanger.
- Industrial Build: Features a rugged 2" NPT housing and SPST switch for long-term reliability in chemically treated pool water.
- Versatile Application: Validated for use across the Copper Fin II product line.
Common Questions
What are the symptoms of a failing flow switch in a Lochinvar heater?
Common indicators include "No Flow" error codes on the digital display, frequent cycling, or the heater failing to ignite despite the pump being active. Always check for scale buildup on the paddle before replacing the assembly.
Can I use this switch on a 1.5-inch plumbing line?
This specific model is designed with a 2-inch NPT thread. While bushings can be used, we recommend maintaining the specified pipe diameter to ensure the flow velocity correctly triggers the paddle mechanism per manufacturer specifications.
Is the paddle included with the 100208655 kit?
Yes, this is a complete flow switch assembly designed for immediate field installation into the heater's flow sensing port.
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 Lochinvar & A.O. Smith 100208655 Flow Switch is a critical safety component designed for Copper Fin II pool heaters and commercial water heating systems. This OEM replacement flow switch features a 2-inch NPT connection and SPST (Single Pole Single Throw) circuitry to provide precise water flow monitoring. By verifying adequate flow before ignition, it prevents dry-firing and high-limit trips, safeguarding the heat exchanger from thermal stress and catastrophic failure. As a direct replacement for the legacy WTR20003K part number, this switch ensures seamless integration with existing control boards and field piping.
Engineered for high-demand environments, the 100208655 pool heater flow switch utilizes a durable paddle mechanism that responds to specific GPM thresholds required for safe operation. This genuine Lochinvar flow switch kit is compatible with a wide range of models, including the CPN0502 and CPN1442 series. Using OEM HVACR parts like this ensures the unit maintains its original efficiency ratings and safety certifications, providing contractors with a reliable "drop-in" solution that eliminates the calibration issues common with universal aftermarket switches.
- OEM Compatibility: Exact replacement for Lochinvar and A.O. Smith part number 100208655 and WTR20003K.
- Critical Safety Protection: Prevents heater operation during low-flow conditions to protect the heat exchanger.
- Industrial Build: Features a rugged 2" NPT housing and SPST switch for long-term reliability in chemically treated pool water.
- Versatile Application: Validated for use across the Copper Fin II product line.
Common Questions
What are the symptoms of a failing flow switch in a Lochinvar heater?
Common indicators include "No Flow" error codes on the digital display, frequent cycling, or the heater failing to ignite despite the pump being active. Always check for scale buildup on the paddle before replacing the assembly.
Can I use this switch on a 1.5-inch plumbing line?
This specific model is designed with a 2-inch NPT thread. While bushings can be used, we recommend maintaining the specified pipe diameter to ensure the flow velocity correctly triggers the paddle mechanism per manufacturer specifications.
Is the paddle included with the 100208655 kit?
Yes, this is a complete flow switch assembly designed for immediate field installation into the heater's flow sensing port.
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.
