Lochinvar & A.O. Smith 100111584 Pump Circulator
The Lochinvar & A.O. Smith 100111584 Pump Circulator is a critical OEM replacement part designed for high-efficiency hydronic heating and domestic hot water systems. Built to withstand the rigorous demands of commercial and residential boilers, this high-head circulator pump ensures consistent fluid velocity and thermal distribution across the heat exchanger. It serves as a direct replacement for legacy part numbers such as Lochinvar ARM2801 and A.O. Smith 193541-000. This lubricated, cartridge-style motor assembly is engineered for quiet operation and features a high-starting torque to prevent seasonal seizing. When performing a boiler pump replacement, the 100111584 provides the precise flow rate required to maintain factory-spec pressure drops. Its durable construction handles high-operating temperatures and varying fluid chemistries, ensuring the hydronic system performance remains within narrow tolerances. As a service technician, selecting this genuine Lochinvar circulator pump ensures seamless mechanical fitment and electrical compatibility with existing control boards.
Key Benefits
- Optimized Flow Characteristics: Maintains correct GPM flow rates to prevent heat exchanger scaling and short-cycling.
- Rugged Build Quality: Features a heavy-duty motor housing and high-grade internal seals for reliable HVAC system reliability.
- Direct Fit Compatibility: Specifically engineered for Lochinvar Knight and A.O. Smith Cyclone models, eliminating field modifications.
- Reduced Operational Noise: Precision-balanced impeller reduces vibration and harmonic resonance throughout the piping network.
Common Questions
Is the 100111584 compatible with older Lochinvar Knight models?
Yes, this pump is the designated replacement circulator for several Knight XL and commercial boiler series that originally utilized the ARM2801 part number.
Does this pump include the required mounting gaskets?
Standard circulator pump installation typically requires specific flange gaskets; always verify the integrity of the existing pump flanges and replace gaskets during service to prevent leaks.
What are the electrical requirements for this circulator?
This unit is designed to interface directly with the boiler's internal 120V pump relay or control board, matching the amperage draw and starting torque of the original factory component.
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: $1,292.77
-65%$1,292.77
$452.47Product Information
Product Information
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Description
The Lochinvar & A.O. Smith 100111584 Pump Circulator is a critical OEM replacement part designed for high-efficiency hydronic heating and domestic hot water systems. Built to withstand the rigorous demands of commercial and residential boilers, this high-head circulator pump ensures consistent fluid velocity and thermal distribution across the heat exchanger. It serves as a direct replacement for legacy part numbers such as Lochinvar ARM2801 and A.O. Smith 193541-000. This lubricated, cartridge-style motor assembly is engineered for quiet operation and features a high-starting torque to prevent seasonal seizing. When performing a boiler pump replacement, the 100111584 provides the precise flow rate required to maintain factory-spec pressure drops. Its durable construction handles high-operating temperatures and varying fluid chemistries, ensuring the hydronic system performance remains within narrow tolerances. As a service technician, selecting this genuine Lochinvar circulator pump ensures seamless mechanical fitment and electrical compatibility with existing control boards.
Key Benefits
- Optimized Flow Characteristics: Maintains correct GPM flow rates to prevent heat exchanger scaling and short-cycling.
- Rugged Build Quality: Features a heavy-duty motor housing and high-grade internal seals for reliable HVAC system reliability.
- Direct Fit Compatibility: Specifically engineered for Lochinvar Knight and A.O. Smith Cyclone models, eliminating field modifications.
- Reduced Operational Noise: Precision-balanced impeller reduces vibration and harmonic resonance throughout the piping network.
Common Questions
Is the 100111584 compatible with older Lochinvar Knight models?
Yes, this pump is the designated replacement circulator for several Knight XL and commercial boiler series that originally utilized the ARM2801 part number.
Does this pump include the required mounting gaskets?
Standard circulator pump installation typically requires specific flange gaskets; always verify the integrity of the existing pump flanges and replace gaskets during service to prevent leaks.
What are the electrical requirements for this circulator?
This unit is designed to interface directly with the boiler's internal 120V pump relay or control board, matching the amperage draw and starting torque of the original factory component.
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.
