REFRIGERANT GAS EURO R‑407C

Euro Refrigerant R-407C is a non-ozone depleting HFC refrigerant blend, specifically engineered as a sustainable alternative to HCFC-22 (R-22). Comprising approximately 23% R-32, 25% R-125, and 52% R-134a, this zeotropic mixture is designed to closely match the pressure–temperature behavior and cooling capacity of R-22, making it one of the most reliable retrofit solutions available today.

With a zero Ozone Depletion Potential (ODP) and a Global Warming Potential (GWP) of ~1,774, Euro R-407C delivers a balance of environmental responsibility and strong cooling performance. Classified as ASHRAE safety class A1 (non-flammable and non-toxic), it ensures safe handling and operation across a wide range of HVAC and refrigeration systems.

Because its thermodynamic properties are similar to those of R-22, Euro R-407C is an excellent choice for both new equipment designed around R-22 specifications and for retrofit applications, where existing systems can be adapted with minimal modifications. Its mild temperature glide (3–5 K) must be considered in system design, but when managed properly, it provides efficient and stable operation.

Key Features

• ✅ Eco-Friendly Performance – Zero ODP, compliant with global environmental regulations.

• ✅ Safe & Reliable – ASHRAE A1 classification (non-flammable, non-toxic).

• ✅ Close Match to R-22 – Similar pressure-temperature behavior, allowing easier retrofitting.

• ✅ Zeotropic Blend – Maintains cooling capacity with minimal glide effect (3–5 K).

• ✅ Versatile Applications – Compatible with residential, commercial, and light industrial systems.

• ✅ Retrofit Friendly – Enables older R-22 systems to continue service with reduced environmental impact.

Applications

• Residential and Commercial Split AC Systems

• Central Air Conditioning & Chillers

• Heat Pumps

• Medium-Temperature Refrigeration Systems

Usage Guidelines

• Remove all existing R-22 refrigerant completely before charging.

• Replace mineral oil with POE (Polyol Ester) oil for proper compatibility.

• Always charge as liquid to maintain blend integrity.

• System design and operation should consider the temperature glide effect for best performance.

FAQs

Q1: Is Euro R-407C a direct drop-in replacement for R-22?
A: No. While it closely mimics R-22 performance, it requires retrofitting. This includes fully purging R-22, replacing the oil with POE, and carefully adjusting the refrigerant charge.

Q2: What does “glide” mean, and why is it important?
A: Glide refers to the temperature range during phase change in a zeotropic blend. In R-407C (3–5 K), it impacts evaporator performance and must be accounted for in system design and superheat settings.

Q3: How does Euro R-407C compare to R-410A?
A: R-410A operates at higher pressures and delivers greater energy efficiency, making it the preferred choice for new systems. However, it is not suitable for retrofitting R-22 systems, where R-407C remains the best option.

Q4: Can Euro R-407C be used in refrigeration as well as air conditioning?
A: Yes, it is suitable for both medium-temperature refrigeration systems and comfort cooling applications such as chillers, split units, and heat pumps.