THE GLASS-BOX AI HOTEL · TRADE 6

Refrigeration & cooling

Chillers and cold rooms often run around the clock. When outdoor temperatures are low, cooling can be produced almost without the compressor (free cooling), and the waste heat is a gift to the hot water system. The AI harvests both.

One level deeper — 2 components

This page explains the trade. If you are facility engineering, aquatic operations or consulting engineering and need the individual component — with code reference, calculator and connection detail — carry on here:

Chiller Free cooling & waste heat

All component wizards →

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Frequently asked questions

What is free cooling?

At low outdoor temperatures the dry cooler chills the water almost without the compressor. The chiller stays off and the electricity used for cooling drops sharply.

What is the EER?

The EER (energy efficiency ratio) states how much cooling is produced per kilowatt-hour of electricity. It is computed from cooling output and electrical input — it is not a native measurement.

Can the refrigeration waste heat be used?

Yes. The condenser gives off heat continuously. Instead of rejecting it, it can preheat domestic hot water.