Grundfos MQ3-45 (230V) 1 HP Pressure Booster Pump – 96860207

The Grundfos MQ3-45 (230V) 1 HP Pressure Booster Pump – 96860207 is a compact, high-performance, all-in-one pressure boosting unit designed to increase water pressure for domestic supply systems and other clean water applications.

This booster pump includes a built-in pressure switch and integrated pressure tank, making installation quick and straightforward with no extra components required. The control panel is simple to use, featuring clear indicator lights to show pump operation status, auto-reset readiness, and alarm conditions such as dry running or overheating.

Designed for trouble-free operation, the MQ series includes anti-cycling technology to prevent constant start/stop cycles caused by minor leaks or dripping faucets. If water supply becomes unavailable, the pump automatically shuts down to protect itself and will restart once water returns.

Key Features

• All-in-one booster pump system with built-in pressure tank and pressure switch

• Automatic pressure boosting for domestic water supply and other clean water applications

• User-friendly control panel with ON/OFF button and indicator lights

• Alarm indicators for dry-running or overheating protection

• Auto-reset function for safe and reliable operation

• Anti-cycling protection reduces repeated starts/stops from small leaks or dripping taps

• Built-in motor protection stops the pump during dry running, overload, or excessive temperature

• Compact design for fast installation and minimal space requirements

• Low-noise operation ideal for residential settings

• 2-year limited warranty from Grundfos

Important Installation Note

This booster pump must be installed in an area that will not freeze.

Installation in below-freezing temperatures can void the Grundfos warranty.

Specifications

Performance

• Power: 1 HP

• Power Consumption: 716 Watts

• Max Flow Rate: 22 GPM

• Max Pressure: 108 PSI

• Inlet Pressure: 44 PSI

• Max Suction Lift: 26 ft

Connections

• Inlet Connection: 1” MPT

• Outlet Connection: 1” MPT

• Connection Type: Male (MPT)

• Size: 1”

Electrical

• Voltage: 230VAC

• Voltage Type: AC

• Series: MQ3

Temperature

• Ambient Temperature Range: 32°F to 113°F

• Liquid Temperature Range: 32°F to 95°F