Lochinvar & A.O. Smith 100163258 Bypass Assembly
The Lochinvar & A.O. Smith 100163258 Bypass Assembly is a critical OEM component engineered for precision flow regulation in high-performance hydronic systems. Designed specifically for EnergyRite Residential Pool Heaters (models ERN/ERL 152 through 402, Non-ASME), this bypass valve kit ensures optimal heat exchanger protection by maintaining the correct balance between bypass and through-flow water. As a direct replacement for the obsolete Lochinvar MSC3404, this assembly addresses common pressure-side issues, preventing localized overheating and scaling within the copper finned tube heat exchanger. Veteran contractors rely on the 100163258 bypass kit to restore factory-spec hydraulic resistance, ensuring the boiler or heater operates within its designed temperature rise parameters. Whether you are performing a seasonal teardown or troubleshooting a flow-related limit trip, this Lochinvar heater part provides the exact fit required for seamless HVAC system maintenance and long-term reliability in demanding residential applications.
Key Benefits- Precision Flow Control: Specifically calibrated for EnergyRite ERN/L 152-402 models to prevent thermal shock and inefficient heat transfer.
- Direct OEM Replacement: Serves as the authoritative sub for part MSC3404, ensuring 100% mechanical compatibility without field modifications.
- Enhanced System Resilience: Heavy-duty construction manages high-velocity water flow to mitigate erosion and bypass-related pressure drops.
- Simplified Integration: Designed for rapid installation during pool heater repair, minimizing downtime for the end-user.
Which models are compatible with the 100163258 bypass assembly?
This kit is engineered for Lochinvar EnergyRite residential pool heaters, specifically the ERN152, ERN252, ERN302, and ERN402 (and ERL equivalents) Non-ASME units.
Can I use this bypass kit to replace the old MSC3404 part?
Yes, the 100163258 is the official replacement part number for the discontinued MSC3404 bypass assembly.
What are the symptoms of a failing heater bypass assembly?
Common indicators include inconsistent water temperatures, "knocking" sounds from the heat exchanger due to poor flow, or frequent high-limit switch trips during operation.
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.
Original: $185.40
-65%$185.40
$64.89Lochinvar & A.O. Smith 100163258 Bypass Assembly
The Lochinvar & A.O. Smith 100163258 Bypass Assembly is a critical OEM component engineered for precision flow regulation in high-performance hydronic systems. Designed specifically for EnergyRite Residential Pool Heaters (models ERN/ERL 152 through 402, Non-ASME), this bypass valve kit ensures optimal heat exchanger protection by maintaining the correct balance between bypass and through-flow water. As a direct replacement for the obsolete Lochinvar MSC3404, this assembly addresses common pressure-side issues, preventing localized overheating and scaling within the copper finned tube heat exchanger. Veteran contractors rely on the 100163258 bypass kit to restore factory-spec hydraulic resistance, ensuring the boiler or heater operates within its designed temperature rise parameters. Whether you are performing a seasonal teardown or troubleshooting a flow-related limit trip, this Lochinvar heater part provides the exact fit required for seamless HVAC system maintenance and long-term reliability in demanding residential applications.
Key Benefits- Precision Flow Control: Specifically calibrated for EnergyRite ERN/L 152-402 models to prevent thermal shock and inefficient heat transfer.
- Direct OEM Replacement: Serves as the authoritative sub for part MSC3404, ensuring 100% mechanical compatibility without field modifications.
- Enhanced System Resilience: Heavy-duty construction manages high-velocity water flow to mitigate erosion and bypass-related pressure drops.
- Simplified Integration: Designed for rapid installation during pool heater repair, minimizing downtime for the end-user.
Which models are compatible with the 100163258 bypass assembly?
This kit is engineered for Lochinvar EnergyRite residential pool heaters, specifically the ERN152, ERN252, ERN302, and ERN402 (and ERL equivalents) Non-ASME units.
Can I use this bypass kit to replace the old MSC3404 part?
Yes, the 100163258 is the official replacement part number for the discontinued MSC3404 bypass assembly.
What are the symptoms of a failing heater bypass assembly?
Common indicators include inconsistent water temperatures, "knocking" sounds from the heat exchanger due to poor flow, or frequent high-limit switch trips during operation.
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 Lochinvar & A.O. Smith 100163258 Bypass Assembly is a critical OEM component engineered for precision flow regulation in high-performance hydronic systems. Designed specifically for EnergyRite Residential Pool Heaters (models ERN/ERL 152 through 402, Non-ASME), this bypass valve kit ensures optimal heat exchanger protection by maintaining the correct balance between bypass and through-flow water. As a direct replacement for the obsolete Lochinvar MSC3404, this assembly addresses common pressure-side issues, preventing localized overheating and scaling within the copper finned tube heat exchanger. Veteran contractors rely on the 100163258 bypass kit to restore factory-spec hydraulic resistance, ensuring the boiler or heater operates within its designed temperature rise parameters. Whether you are performing a seasonal teardown or troubleshooting a flow-related limit trip, this Lochinvar heater part provides the exact fit required for seamless HVAC system maintenance and long-term reliability in demanding residential applications.
Key Benefits- Precision Flow Control: Specifically calibrated for EnergyRite ERN/L 152-402 models to prevent thermal shock and inefficient heat transfer.
- Direct OEM Replacement: Serves as the authoritative sub for part MSC3404, ensuring 100% mechanical compatibility without field modifications.
- Enhanced System Resilience: Heavy-duty construction manages high-velocity water flow to mitigate erosion and bypass-related pressure drops.
- Simplified Integration: Designed for rapid installation during pool heater repair, minimizing downtime for the end-user.
Which models are compatible with the 100163258 bypass assembly?
This kit is engineered for Lochinvar EnergyRite residential pool heaters, specifically the ERN152, ERN252, ERN302, and ERN402 (and ERL equivalents) Non-ASME units.
Can I use this bypass kit to replace the old MSC3404 part?
Yes, the 100163258 is the official replacement part number for the discontinued MSC3404 bypass assembly.
What are the symptoms of a failing heater bypass assembly?
Common indicators include inconsistent water temperatures, "knocking" sounds from the heat exchanger due to poor flow, or frequent high-limit switch trips during operation.
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.
