
Grundfos 99452461 Pump
The Grundfos 99452461, also identified as the UP15-18B7/DTLC, is a high-efficiency recirculating pump engineered for domestic hot water systems and open-loop heating applications. This 1/25HP pump features a lead-free bronze housing, ensuring compliance with strict potable water standards and preventing corrosion in oxygen-rich environments. Operating at 115V, it utilizes a canned rotor design where the pump and motor form an integral unit without a mechanical shaft seal, utilizing only two gaskets for sealing. The composite impeller and ceramic shaft with carbon radial bearings deliver quiet, maintenance-free operation. This model includes an integrated digital timer and line cord, allowing contractors to optimize system runtime based on demand, which reduces energy consumption and limits pipe wear. With a maximum flow rate of approximately 14.7 GPM and a max head of 17 feet, this Grundfos Comfort pump is a reliable solution for maintaining instant hot water at the fixture while minimizing thermal loss.
Key Benefits
- Lead-Free Bronze Construction: Designed specifically for open-loop potable water systems to prevent oxidation and meet plumbing codes.
- Integrated Digital Timer: Provides precise control over hot water recirculation cycles to improve system efficiency and user comfort.
- Low Energy Consumption: The 1/25HP motor operates at low wattage, making it a cost-effective choice for continuous or scheduled residential circulation.
- Whisper-Quiet Operation: The wet-rotor design eliminates the need for a cooling fan, significantly reducing decibel levels during operation.
- Compact Footprint: Standard 1/2" sweat or threaded connections allow for straightforward integration into existing manifold configurations.
Common Questions
What is the maximum fluid temperature rating for this pump?
The Grundfos UP series is typically rated for fluid temperatures up to 230°F, though for domestic hot water applications, it is usually operated between 120°F and 140°F.
Can this pump be used in a closed-loop radiant heating system?
While the bronze housing allows for use in open loops, this pump is also compatible with closed-loop systems, though cast iron alternatives are often used if potable water is not a requirement.
How do I program the digital timer for optimal performance?
The onboard timer control allows you to set specific operation windows to match the building's occupancy patterns, ensuring instant hot water is available only when needed.
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.
Grundfos 99452461 Pump
The Grundfos 99452461, also identified as the UP15-18B7/DTLC, is a high-efficiency recirculating pump engineered for domestic hot water systems and open-loop heating applications. This 1/25HP pump features a lead-free bronze housing, ensuring compliance with strict potable water standards and preventing corrosion in oxygen-rich environments. Operating at 115V, it utilizes a canned rotor design where the pump and motor form an integral unit without a mechanical shaft seal, utilizing only two gaskets for sealing. The composite impeller and ceramic shaft with carbon radial bearings deliver quiet, maintenance-free operation. This model includes an integrated digital timer and line cord, allowing contractors to optimize system runtime based on demand, which reduces energy consumption and limits pipe wear. With a maximum flow rate of approximately 14.7 GPM and a max head of 17 feet, this Grundfos Comfort pump is a reliable solution for maintaining instant hot water at the fixture while minimizing thermal loss.
Key Benefits
- Lead-Free Bronze Construction: Designed specifically for open-loop potable water systems to prevent oxidation and meet plumbing codes.
- Integrated Digital Timer: Provides precise control over hot water recirculation cycles to improve system efficiency and user comfort.
- Low Energy Consumption: The 1/25HP motor operates at low wattage, making it a cost-effective choice for continuous or scheduled residential circulation.
- Whisper-Quiet Operation: The wet-rotor design eliminates the need for a cooling fan, significantly reducing decibel levels during operation.
- Compact Footprint: Standard 1/2" sweat or threaded connections allow for straightforward integration into existing manifold configurations.
Common Questions
What is the maximum fluid temperature rating for this pump?
The Grundfos UP series is typically rated for fluid temperatures up to 230°F, though for domestic hot water applications, it is usually operated between 120°F and 140°F.
Can this pump be used in a closed-loop radiant heating system?
While the bronze housing allows for use in open loops, this pump is also compatible with closed-loop systems, though cast iron alternatives are often used if potable water is not a requirement.
How do I program the digital timer for optimal performance?
The onboard timer control allows you to set specific operation windows to match the building's occupancy patterns, ensuring instant hot water is available only when needed.
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 Grundfos 99452461, also identified as the UP15-18B7/DTLC, is a high-efficiency recirculating pump engineered for domestic hot water systems and open-loop heating applications. This 1/25HP pump features a lead-free bronze housing, ensuring compliance with strict potable water standards and preventing corrosion in oxygen-rich environments. Operating at 115V, it utilizes a canned rotor design where the pump and motor form an integral unit without a mechanical shaft seal, utilizing only two gaskets for sealing. The composite impeller and ceramic shaft with carbon radial bearings deliver quiet, maintenance-free operation. This model includes an integrated digital timer and line cord, allowing contractors to optimize system runtime based on demand, which reduces energy consumption and limits pipe wear. With a maximum flow rate of approximately 14.7 GPM and a max head of 17 feet, this Grundfos Comfort pump is a reliable solution for maintaining instant hot water at the fixture while minimizing thermal loss.
Key Benefits
- Lead-Free Bronze Construction: Designed specifically for open-loop potable water systems to prevent oxidation and meet plumbing codes.
- Integrated Digital Timer: Provides precise control over hot water recirculation cycles to improve system efficiency and user comfort.
- Low Energy Consumption: The 1/25HP motor operates at low wattage, making it a cost-effective choice for continuous or scheduled residential circulation.
- Whisper-Quiet Operation: The wet-rotor design eliminates the need for a cooling fan, significantly reducing decibel levels during operation.
- Compact Footprint: Standard 1/2" sweat or threaded connections allow for straightforward integration into existing manifold configurations.
Common Questions
What is the maximum fluid temperature rating for this pump?
The Grundfos UP series is typically rated for fluid temperatures up to 230°F, though for domestic hot water applications, it is usually operated between 120°F and 140°F.
Can this pump be used in a closed-loop radiant heating system?
While the bronze housing allows for use in open loops, this pump is also compatible with closed-loop systems, though cast iron alternatives are often used if potable water is not a requirement.
How do I program the digital timer for optimal performance?
The onboard timer control allows you to set specific operation windows to match the building's occupancy patterns, ensuring instant hot water is available only when needed.
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.












