Lochinvar & A.O. Smith 100166434 Pump
The Lochinvar & A.O. Smith 100166434 Circulator Pump is a heavy-duty, 3-speed hydronic component engineered specifically for high-efficiency heating systems, including the Lochinvar Knight KBN080 through KBN210 series. Built with a rugged cast iron housing and a 1/6 HP motor, this 115V/60Hz assembly is a direct replacement for the obsolete PUM3020. Operating as a wet-rotor, water-lubricated unit, it eliminates the need for manual oiling while maintaining consistent flow rates across residential and commercial HVAC/R applications. With a maximum amp draw of approximately 1.8A at its highest setting, this Grundfos-style pump ensures rapid thermal distribution and stabilized system pressures. Techs should note the 100166434 is designed for closed-loop hydronic heating and is not suitable for open-potable water systems. Proper 1-inch flange alignment is critical during boiler pump replacement to prevent seal failure and ensure peak energy efficiency.
Key Benefits- Adjustable Performance: Integrated three-speed switch allow technicians to fine-tune the flow rate and head pressure to match specific system requirements.
- Direct OEM Compatibility: Engineered as a drop-in replacement circulator for Lochinvar Knight and A.O. Smith high-efficiency boilers, ensuring perfect fitment.
- Maintenance-Free Operation: The water-lubricated rotor design ensures quiet performance without the upkeep of traditional mechanical seals.
- Thermal Stability: Effectively manages high-head applications to prevent short-cycling and ensure even heat distribution across all zones.
Is the 100166434 compatible with my older Lochinvar unit?
Yes, this part serves as the current OEM replacement for the older PUM3020 and is verified for the Knight KBN and WB series. Always verify your specific model number before installation.
Can I use this pump in a domestic hot water (potable) loop?
No. Because this is a cast iron pump, it is strictly for closed-loop heating systems. Using it in a potable water system will lead to corrosion and premature failure; use a bronze or stainless steel alternative for those applications.
What are the electrical requirements for this circulator?
This unit operates on a standard 115V/60Hz single-phase power supply. Amp draw varies by speed setting, typically ranging between 1.3A and 1.8A.
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.
Lochinvar & A.O. Smith 100166434 Pump
The Lochinvar & A.O. Smith 100166434 Circulator Pump is a heavy-duty, 3-speed hydronic component engineered specifically for high-efficiency heating systems, including the Lochinvar Knight KBN080 through KBN210 series. Built with a rugged cast iron housing and a 1/6 HP motor, this 115V/60Hz assembly is a direct replacement for the obsolete PUM3020. Operating as a wet-rotor, water-lubricated unit, it eliminates the need for manual oiling while maintaining consistent flow rates across residential and commercial HVAC/R applications. With a maximum amp draw of approximately 1.8A at its highest setting, this Grundfos-style pump ensures rapid thermal distribution and stabilized system pressures. Techs should note the 100166434 is designed for closed-loop hydronic heating and is not suitable for open-potable water systems. Proper 1-inch flange alignment is critical during boiler pump replacement to prevent seal failure and ensure peak energy efficiency.
Key Benefits- Adjustable Performance: Integrated three-speed switch allow technicians to fine-tune the flow rate and head pressure to match specific system requirements.
- Direct OEM Compatibility: Engineered as a drop-in replacement circulator for Lochinvar Knight and A.O. Smith high-efficiency boilers, ensuring perfect fitment.
- Maintenance-Free Operation: The water-lubricated rotor design ensures quiet performance without the upkeep of traditional mechanical seals.
- Thermal Stability: Effectively manages high-head applications to prevent short-cycling and ensure even heat distribution across all zones.
Is the 100166434 compatible with my older Lochinvar unit?
Yes, this part serves as the current OEM replacement for the older PUM3020 and is verified for the Knight KBN and WB series. Always verify your specific model number before installation.
Can I use this pump in a domestic hot water (potable) loop?
No. Because this is a cast iron pump, it is strictly for closed-loop heating systems. Using it in a potable water system will lead to corrosion and premature failure; use a bronze or stainless steel alternative for those applications.
What are the electrical requirements for this circulator?
This unit operates on a standard 115V/60Hz single-phase power supply. Amp draw varies by speed setting, typically ranging between 1.3A and 1.8A.
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 Lochinvar & A.O. Smith 100166434 Circulator Pump is a heavy-duty, 3-speed hydronic component engineered specifically for high-efficiency heating systems, including the Lochinvar Knight KBN080 through KBN210 series. Built with a rugged cast iron housing and a 1/6 HP motor, this 115V/60Hz assembly is a direct replacement for the obsolete PUM3020. Operating as a wet-rotor, water-lubricated unit, it eliminates the need for manual oiling while maintaining consistent flow rates across residential and commercial HVAC/R applications. With a maximum amp draw of approximately 1.8A at its highest setting, this Grundfos-style pump ensures rapid thermal distribution and stabilized system pressures. Techs should note the 100166434 is designed for closed-loop hydronic heating and is not suitable for open-potable water systems. Proper 1-inch flange alignment is critical during boiler pump replacement to prevent seal failure and ensure peak energy efficiency.
Key Benefits- Adjustable Performance: Integrated three-speed switch allow technicians to fine-tune the flow rate and head pressure to match specific system requirements.
- Direct OEM Compatibility: Engineered as a drop-in replacement circulator for Lochinvar Knight and A.O. Smith high-efficiency boilers, ensuring perfect fitment.
- Maintenance-Free Operation: The water-lubricated rotor design ensures quiet performance without the upkeep of traditional mechanical seals.
- Thermal Stability: Effectively manages high-head applications to prevent short-cycling and ensure even heat distribution across all zones.
Is the 100166434 compatible with my older Lochinvar unit?
Yes, this part serves as the current OEM replacement for the older PUM3020 and is verified for the Knight KBN and WB series. Always verify your specific model number before installation.
Can I use this pump in a domestic hot water (potable) loop?
No. Because this is a cast iron pump, it is strictly for closed-loop heating systems. Using it in a potable water system will lead to corrosion and premature failure; use a bronze or stainless steel alternative for those applications.
What are the electrical requirements for this circulator?
This unit operates on a standard 115V/60Hz single-phase power supply. Amp draw varies by speed setting, typically ranging between 1.3A and 1.8A.
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.
