Introducing the HydroWatch MP, Mains-Pressure Automatic Pressurisation and Monitoring Unit – the latest in Pressurisation and Monitoring.
The HydroWatch MP is an electronically controlled, pumpless pressurisation unit for sealed heating, chilled-water and condenser water systems.
Features of the HydroWatch MP include:
- Pumpless operation powered by incoming mains pressure 1.5 – 9 bar
- 230 V supply via 1.5m flex with fused plug
- Self-commissioning controller with on-screen guided set-up
- Twin electronic pressure sensors
- Automatic system-inhibitor dose calculation counters
The new HydroWatch MP uses the incoming mains cold-water supply to fill, pressurise and continuously maintain the system, replacing the traditional combination of an RPZ valve, fill loop and pressure switch with a single integrated unit.
Unlike conventional pressurisation kit, HydroWatch MP measures every litre it delivers. It reports the system’s average daily water loss, calculates the volume of inhibitor required for correct dilution, and gives the building manager actionable data on system integrity — not just an alarm contact when something has already gone wrong.
We’d love to hear from you! Email the team sales@automaticheating.co.uk or call us on 0800 046 55233 to discuss your next project.

