Boyard A2L Outdoor Condensing Unit

Date: 08/03/2026

Boyard A2L Outdoor Condensing Unit – The Next Generation of Low-GWP Refrigeration

The global refrigeration industry is undergoing a fundamental transformation. With the EU committed to achieving climate neutrality by 2050 under the European Green Deal, and regulatory frameworks such as the EU F-gas Regulation and the U.S. EPA AIM Act phasing down high-GWP refrigerants, the shift toward low-GWP alternatives is no longer a future prospect — it is today’s reality. As of January 2026, new commercial refrigeration equipment must predominantly use A2L refrigerants. Boyard Systems, with over 20 years of experience in commercial refrigeration and an annual production capacity of 1 million units, has positioned itself at the forefront of this transition with its A2L Outdoor Condensing Unit range.

What Are A2L Refrigerants?

A2L refrigerants are classified under ASHRAE Standard 34 as having low toxicity (the “A” rating) and mild flammability with a burning velocity of ≤10 cm/s (the “2L” rating). This means they are difficult to ignite and feature a slow flame speed and low heat of combustion — characteristics that make them safe for use in commercial refrigeration when proper engineering controls are applied.

Common A2L refrigerants such as R454C and R455A offer GWP ratings below 150, making them fully compliant with current and future F-gas regulations. By comparison, legacy refrigerants like R-404A have a GWP of approximately 3,922 — thousands of times higher than CO₂. The environmental benefits are clear: A2Ls contribute far less to climate change if released into the atmosphere, while maintaining the efficiency and performance required for commercial cooling systems.

Main refirgerants in play

The Boyard A2L Outdoor Condensing Unit

The Boyard A2L Outdoor Condensing Unit range — available from 1 to 4 HP (models ODU-010 through ODU-040) — is engineered to meet the requirements of urban environments where low noise levels are not optional but essential. These units are compatible with both A2L refrigerants (R454C and R455A) and A1 refrigerants (R448A, R449A, and R452A), offering maximum flexibility for installers and end-users alike.

Outline Dimensions

Compressor – Performance and Reliability

At the heart of each unit is a Boyard rotary compressor, qualified specifically for A2L refrigerants. Available for both low-temperature (LBP) and medium-temperature (MBP) applications, the compressor delivers a high Coefficient of Performance (COP) for excellent efficiency and low power consumption. Each unit is standardly equipped with a crankshaft heating belt to ensure normal start-up under low-temperature environments, protecting the equipment from cold-start damage. For applications with high discharge temperatures, the compressor supports liquid injection cooling.

Condenser – Optimized for Efficiency

The condenser has been redesigned with a heat exchange area that is over 20% larger than comparable products on the market. Microchannel condenser technology reduces the required refrigerant charge, while the condenser fan — accessible through a dedicated service door — features adjustable speed control to help reduce both noise and power consumption.

A2L-Specific Safety Design

Working with mildly flammable refrigerants demands rigorous safety engineering. Boyard has addressed this with a dedicated electrical cabinet that isolates all electrical components from the compressor section. Each unit is also equipped with a small cooling fan for active ventilation, designed to prevent refrigerant ingress in the event of a leak. These design features align with evolving safety standards such as IEC 60335-2-24, which now includes requirements for concentration detection, forced ventilation, and electrical component protection for A2L refrigerants.

Boyard A2L Outdoor Condensing Unit 2

Serviceability and Low Noise Operation

All components are sourced from internationally renowned brands, and Boyard supports customized customer requirements. Access panels are provided for both the refrigeration and electrical sections, allowing direct component access without disassembly — a feature that facilitates easy maintenance and assembly. High-performance soundproofing for the compressor, combined with adjustable fan speed, ensures low operating noise that easily surpasses urban noise and vibration standards.

Technical Specifications and Options

The Boyard A2L Outdoor Condensing Unit comes with a comprehensive standard configuration including fan motor, pressure controller (DANFOSS KP15), accumulator (650CC), reservoir (1.1L), dryer filter (083S), check valve, sight glass (3/8″), oil separator (BLR/A-W 55833), frame fan, and crankshaft heating belt (25W–28W depending on model). Optional features include solenoid valve, oil pressure gauge (high and low pressure), and a control board offering functions such as phase sequence protection, phase loss protection, exhaust temperature protection, liquid spraying control, speed regulation control of the condensing fan, and fault code alarm output. The control cabinet is equipped with Schneider components including AC compressor contactors, protectors, and a speed controller.

Boyard A2L Outdoor Condensing Unit 3

Cooling Capacity

Performance data tested under GB/T 21363-2018 conditions (ambient temperature 32°C, subcooling 0°C, suction temperature 18°C) demonstrates the units’ capabilities across a range of evaporating temperatures. For R454C, cooling capacities range from 455W at -40°C evaporating temperature to 6,640W at +5°C for the ODU-040 model. For R455A, capacities range from 475W to 6,970W under the same conditions.

R454C R455A Cooling Capacity

Conclusion

The Boyard A2L Outdoor Condensing Unit represents a complete, factory-integrated package — assembled and tested in-house — that delivers plug-and-play simplicity, cutting installation time and reducing complexity on site. With its extended operating envelope, ultra-quiet operation, smart electronic controls, and full compliance with the latest low-GWP refrigerant regulations, it offers installers and end-users a reliable, future-proof solution for commercial refrigeration.

For more information, visit www.boyard.com or email sales@boyard.com.

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