Controls and remote monitoring
Controller upgrades, new automation and remote alarms for chillers, air handling units and cooling systems.
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Many chillers and air handling units are mechanically sound but run on old controllers that cannot be repaired, have no spare parts or do not show what is happening inside the unit. SKiC replaces such controls with modern PLC-based systems, adds HMI panels at the machine and gives you web access to the unit: live diagram, trends, alarms by SMS and e-mail.
When a controls upgrade makes sense
- The original controller has failed and is no longer available.
- Alarms appear without a clear reason and the history is not stored.
- Several units should work together (lead and lag, standby, free cooling) but the controls do not allow it.
- You want to see the unit status remotely and be warned before the process stops.
- Energy use is high and you need data to understand why.
What a new control system includes
| Element | Purpose |
|---|---|
| PLC controller | Control logic for compressors, fans, pumps and valves |
| HMI panel | Operation at the machine: status, setpoints, alarm list |
| Sensors and transmitters | Temperatures, pressures, flow, power |
| LTE or network gateway | Remote access without opening the plant network |
| Web visualisation | Live diagram, trends, operation log |
| Alarms | SMS and e-mail notifications to chosen people |
Repair or replace the controller?
A controller can often be repaired: a damaged input, a power supply, a display. If the hardware is obsolete or the logic is the real problem, replacement is the better investment. After diagnostics we explain both options with costs, so you can decide.
Integration with building and plant systems
New controls can share data with a building management system or a production SCADA through common protocols such as Modbus and BACnet. We agree the list of signals with your automation team before the work starts.
How the project runs
- Site survey: unit, wiring, sensors, what works and what does not.
- Proposal: scope, hardware, functions, timeline and cost.
- Preparation of the control cabinet and the program.
- Installation and commissioning, usually with a short stop of the unit.
- Training of your staff and handover of the documentation.
| Work outside Poland | Net price |
|---|---|
| Diagnostics on site | from 800 EUR |
| Technician hour | 115 EUR |
| Travel per km | 0.75 EUR |
Questions from maintenance teams
Do we need to replace the whole chiller to get remote monitoring?
No. Monitoring can be added to an existing unit, often without changing the original controller.
Is remote access secure?
We use a separate LTE gateway or a dedicated connection, so the plant network does not need to be opened.
Can you upgrade air handling units as well?
Yes. We build new controls and visualisation for AHUs, chillers and complete cooling systems.
Old controller or no overview?
Send photos of the controller and the control cabinet. We will tell you what is possible.