Grundfos 92603115 ALPHA 15-58F High-Efficiency ECM Circulator Pump 115V 1/20 HP

The Grundfos ALPHA 15-58F is a high-efficiency cast iron circulator pump featuring an electronically commutated motor (ECM) designed for hydronic heating systems. This digitally connected pump delivers superior energy savings, intelligent controls, and reliable performance for residential and light commercial applications including baseboard heating, radiators, radiant floor heating, and fan coil systems.

Advanced ECM Technology:

• ECM motor provides up to 85% energy savings compared to traditional circulators
• Power consumption ranges from just 2W to 38W depending on system demand
• Meets DOE energy conservation standards for circulator pumps
• Maximum flow rate of 14 GPM with 20 feet maximum head
• 1/20 HP motor operating on 115V/60Hz single-phase power

Intelligent Control Features:

• AUTOADAPT functionality automatically optimizes pump performance based on system demands
• Three operating modes: constant pressure, proportional pressure, and constant speed curves
• Each mode offers three adjustable speed settings for precise system tuning
• Bluetooth connectivity with Grundfos GO app for wireless setup and monitoring
• Guided setup recommends optimal mode and settings for your specific application

Installation and Reliability:

• Toolless removable power connector for fast, easy installation
• GF 15/26 flange connection with fixed flanges (rotated 0°)
• Includes integrated check valve
• Self-venting capability and robust startup reduce installation callbacks
• Dry-running protection prevents damage if no water is detected
• System air detection and venting mode activated through app
• Whisper-quiet operation at only 25 dB sound level

Digital Troubleshooting:

• Built-in firmware updates keep pump current with latest software
• Event log accessible through Grundfos GO app for quick diagnostics
• Real-time monitoring of pressures, flow rates, and temperatures
• Custom control modes can be programmed via smartphone app

The ALPHA 15-58F is the next-generation replacement for the Alpha 15-55 series and offers backward compatibility with legacy Grundfos models including UP15-42, UPS 15-58, ALPHA1 15-55, and ALPHA2 15-55. Its durable cast iron construction ensures long-lasting performance in demanding heating applications.