Grundfos PM START Automatic Pressure Controller with Dry-Run Protection (1.5 or 2.2 BAR)

The Grundfos PM START is a compact and user-friendly automatic pressure controller designed to regulate the start/stop function of water supply pumps, including Grundfos domestic pressure systems. Featuring robust internal components and intelligent control, the PM START ensures consistent pressure delivery while preventing pump damage through dry-run protection and automatic restart functionality. It’s ideal for residential applications where reliable performance and easy installation are paramount.

Designed for ease of use, the PM START automatically starts the pump when a pressure drop is detected (such as when a tap is opened) and stops it when the water demand ceases. The built-in pressure switch is available in two cut-in pressure options—1.5 bar or 2.2 bar—making it compatible with a range of system requirements. The internal non-return valve and integrated flow sensor ensure accurate and stable operation, reducing pressure fluctuations throughout the home.

With IP65 protection, the controller is built to withstand outdoor conditions and humid environments. The compact design allows for flexible mounting, while the LED status indicators clearly display operating modes and faults. Whether you’re upgrading an existing system or installing a new water pressure solution, the Grundfos PM START is a dependable, plug-and-play controller that delivers safety, performance, and convenience in one durable package.

FEATURES

• Automatic pump start/stop based on pressure and flow
• Built-in dry-run protection with auto-restart
• Integrated non-return valve
• Maintenance-free design
• Compact and easy to install
• IP65 enclosure for outdoor use
• Suitable for pumps with up to 10 A inductive load

SPECIFICATIONS

• Start Pressure: 1.5 bar or 2.2 bar
• Supply Voltage: 1 × 230 V AC, 50/60 Hz
• Max Load: 10 A
• Min Flow: 1 L/min
• Liquid Temp: 0–60 °C
• Ambient Temp: Max 50 °C
• Connections: 1” Male BSP
• Enclosure Rating: IP65
• Includes: PM START unit with built-in check valve (no cable/plug)

MODELS