CO₂ (R744) REFRIGERATION SYSTEMS
Natural-refrigerant refrigeration designed, installed and maintained by engineers trained specifically on CO₂.
R744 · NATURAL REFRIGERANTA refrigerant built for the future of cooling.
CO₂ is a natural refrigerant with a global warming potential of 1. As the EU F-Gas Regulation phases down high-GWP synthetic refrigerants, CO₂ gives food retailers and cold-chain businesses a long-term alternative.
A GWP of 1 compared with hundreds or thousands for many HFCs — a direct reduction in the climate impact of any leak.
CO₂ sits outside the F-Gas phase-down of high-GWP refrigerants, reducing future supply and price risk.
Central CO₂ plant can serve multi-decks, serve-over cases and coldrooms across a store.
CO₂ SYSTEMS EXPLAINED
Transcritical Operation
In warmer ambient conditions CO₂ systems operate above the refrigerant's critical point. Plant is designed for these higher pressures, with controls that keep performance stable through the year.
F-Gas Phase-Down Context
The F-Gas Regulation is steadily reducing the quantity of high-GWP refrigerants placed on the market. Moving to a natural refrigerant at the point of replacement avoids repeat upgrades later.
Design & Installation
We design and install CO₂ systems for retail and food businesses, from survey and plant selection through pipework, controls, commissioning and handover.
Maintenance & Safety
High operating pressures need specialist handling. Our engineers complete dedicated CO₂ / R744 training covering safe isolation, leak detection and fault-finding.
WHAT WE INSTALL
SECTORS WE SERVE
CO₂ TRAINING PROGRAMME
See how our engineers are trained on R744 theory, supervised site practice and sign-off.
FREQUENTLY ASKED
What is R744?
R744 is the refrigerant name for carbon dioxide (CO₂). It is a natural refrigerant with a global warming potential (GWP) of 1, far lower than most synthetic HFC refrigerants.
Why are businesses moving to CO₂ refrigeration?
The EU F-Gas Regulation is phasing down high-GWP refrigerants, which affects their availability and cost. CO₂ is not subject to that phase-down, so it is a long-term option for new and replacement systems.
What is a transcritical CO₂ system?
CO₂ has a low critical temperature, so in warmer conditions the system operates above that point (transcritical) rather than condensing normally. Systems are designed to handle these higher pressures safely and efficiently.
Is CO₂ suitable for supermarkets and retail?
Yes. CO₂ systems are widely used in supermarkets and retail to serve display cases, multi-decks and coldrooms from central plant. We have installed CO₂ systems for retail clients shown on our Refrigeration page.
Are your engineers trained on CO₂?
Yes. CO₂ runs at much higher pressures than conventional refrigeration, so our engineers complete dedicated CO₂ / R744 training before working on live plant. Details are on our Refrigeration page.
“We have been working with Wayne and his team since the beginning. The service they provide is first class. Their response time to an emergency breakdown is always within 4 hours. They communicate extremely well and always keep us up to date.”
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