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Solutions / Chiller Optimisation
❄️ Chiller

Chiller Monitoring: Manage Cooling Together with Energy

Argus EMS monitors chillers brand-independently: evaporator/condenser temperatures, load, compressor and alarm codes on the same screen as electricity consumption. Signed remote setpoint control and rule-based night mode cut cooling costs.

The Problem

The Biggest Load, the Least Visible Device

In many facilities cooling is the largest item on the electricity bill; yet how many kW the chiller draws right now, at what load it runs and its alarm history are often visible only on the unit's own panel. A chiller running on its daytime setpoint in a building that empties at night silently wastes energy every night.

Argus EMS reads chiller telemetry over Modbus, correlates it with consumption from the paired energy analyzer and reports fault codes instantly through the alarm engine. Ready templates for York YVAA and Rhoss are field-proven.

The Argus Solution

What Does It Provide?

  • Evaporator/condenser water temperatures, load percentage, compressor status
  • Instant notification of alarm codes and fault history
  • Correlation of chiller consumption with the electricity analyzer
  • Signed, audit-trailed remote setpoint writing
  • Rule-based day/night setpoint management — every decision charted
  • Brand-independent common metric model: new brands added quickly
11+
Common chiller metrics monitored
7/24
Alarm supervision
2
Brands live in the field (York, Rhoss)
Signed
Remote setpoint command

What Is Chiller Optimisation?

Chiller optimisation continuously reads temperature, load and alarm data from cooling units, correlates it with electricity consumption, manages the setpoint rule-based on day/night and outdoor conditions, and keeps every step on record.

Who Is It For?

  • Facilities with high cooling loads: hospitals, malls, hotels, server rooms
  • Technical teams that want multiple chillers on one screen
  • Operations that want to automate night/weekend setpoint discipline
  • Maintenance teams that want chiller faults reported within minutes

Related: hospital energy management, energy efficiency and the alarm engine.

FAQ

Frequently Asked Questions

Which chiller brands are supported?
York (YVAA series) and Rhoss chillers are live in the field. The monitoring model is brand-independent: it is built on common metrics such as water temperatures, load, compressor and alarm status; templates for other brands with Modbus communication are created quickly.
Is remote setpoint change safe?
Yes. Commands travel over a signed, authorized channel; only values within the defined safe range are accepted, and every change is written to the audit trail. An unauthorized or out-of-range command never reaches the device.
How does automatic setpoint management decide?
It is rule-based: day/night hours, outdoor temperature and chiller load are evaluated together. Every decision keeps a charted trace — why it was written under which condition can be reviewed later. If preferred, it runs in suggestion-only mode without writing.
We already have a BMS — what does Argus add?
The BMS controls the chiller; Argus relates it to energy. Chiller telemetry meets the panel's electricity consumption, budget tracking and the alarm stream on one screen. Argus does not replace the BMS — it sits beside it and adds the energy perspective.
Can predictive maintenance be applied to a cooling unit?
Because Argus EMS stores cooling unit telemetry continuously, the maintenance decision rests on trends rather than guesswork: the drift of evaporator and condenser approach temperatures over months, the rise in electrical draw at the same load and outdoor conditions, and the increasing frequency of alarm codes are each tracked separately. These are the classic inputs to predictive maintenance. The system does not say 'it will fail on this date'; it shows which indicator has been drifting and since when, and how many kWh that costs, and the maintenance team makes the call.

See Argus at Your Facility

Explore the system with your own data in a demo session.