Water Chillers & Reversible Heat Pumps Air/Water From 40 to 650 kW
Rinnai’s latest series of R454B large commercial and industrial chillers and heat pumps are engineered for optimal performance in commercial and industrial air conditioning and heating systems.
These high-efficiency units are designed to deliver exceptional results in terms of Total Life Cycle (TLC) cost reduction. By prioritising the use of renewable energy sources, they support top-tier energy classification ratings and enhance overall building performance in alignment with leading global green building standards such as LEED® and BREEAM®.
Why Rinnai R454B commercial and industrial heat pumps?
- R454B: A Next-Generation Low-GWP Refrigerant R454B is a zeotropic refrigerant blend composed of 69% R-32 and 31% R-1234yf, developed as a low Global Warming Potential (GWP) alternative to R-410A for use in air conditioning and heating systems operating in heat pump mode with volumetric displacement.
- Environmental Performance: With a GWP of 466 (IPCC AR5), R454B offers a 78% reduction compared to R-410A (GWP 2088) and a 31% reduction compared to R-32 (GWP 675), while maintaining zero ozone depletion potential (ODP = 0).
- Safety and Classification: R454B is classified as an A2L refrigerant under ISO 817—non-toxic, odourless, and with low flammability. It is categorised as a Group 1 fluid under the Pressure Equipment Directive (PED).
- Efficiency and Sustainability: The refrigerant requires 30% less charge than R-410A, contributing to a significant 84.4% reduction in overall carbon footprint (measured in kg CO˜ equivalent).
Key Features
- Refrigerant R454B: GWP = 466 (-78% R410A / -31% R32)
- Very high seasonal efficiency in cold and heat
- High modulation of the power delivered
- Wide refrigeration and hydronic configurability
- Small footprint
- High efficiencies at partial loads
- Reduced quantities of refrigerant
- Maximum accessibility to the refrigeration circuit compartment
Main components
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