01 Opportunity
Utilities sit underneath every line in a plant: when hot water, chilled water or clean water stops, everything stops. Here they were run by ageing, isolated controls with no remote visibility — temperatures and pump states lived on local panels, and problems were found by walking past, not by being told.
A conventional rebuild would mean shutting down the very services production needs to run. The retrofit had to be staged live, around production, with minimal electrician work.
02 Solution
One modern Siemens controller took over the boiler hot-water, chiller cooling-water and production clean-water systems in staged cutovers around production windows. Properly tuned automatic control replaced the ad-hoc local controls for temperature and pump duty.
The existing equipment was kept and connected up rather than ripped out — and the chillers and boilers turned out to hold far more useful data than their old panels ever showed. Smart instrumentation filled in the rest of the picture, with every sensor reporting its own health as well as its reading.
Everything is logged in WinCC Unified, and a live dashboard gives maintenance the chiller and boiler trends plus the alarm log on one screen — served fully offline on the plant network, no cloud dependency.
03 Outcome
The three water systems now run on one modern controller with stable automatic control, and the plant got through the entire retrofit without stopping production. Utilities that used to be a blind spot are now the best-instrumented part of the site: logged, trended and alarmed around the clock.
04 Project highlights
- Retrofit completed without stopping production and with minimal electrician work
- Stable, reliable automatic temperature and pump control across all three water systems
- Existing equipment connected and kept in service rather than ripped out and replaced
- Extra chiller and boiler data unlocked that the old panels never showed
- Full process data logging with smart instrumentation and WinCC Unified
- Maintenance sees live chiller and boiler trends and the alarm log on one screen, fully offline on the plant network
