Apr5

R404A Refrigerant Replacement / Refrigerant Conversions Melbourne

R404A Phase‑Down in Australia: What It Means for Commercial Refrigeration in Melbourne

Australia’s accelerated phase‑down of high Global Warming Potential (GWP) refrigerants is having a direct impact on commercial refrigeration systems across Melbourne. For businesses still operating equipment charged with R404A, the combination of regulatory pressure, predicted supply shortages, and escalating costs is now a significant operational risk.

At MNK Technical Services, we are already seeing the local impacts across supermarkets, cold storage facilities, food manufacturing sites, and industrial refrigeration assets throughout metropolitan Melbourne and regional Victoria.

Why R404A Is Being Phased Down

R404A has historically been a common refrigerant choice across commercial and industrial refrigeration applications. However, it carries a very high GWP, making it a priority substance under the Australian Government’s HFC import quota phase‑down program.

Rather than a hard ban, the phase‑down works by limiting how much refrigerant can be imported into Australia each year — reducing availability and increasing market cost.

R404A Supply and Pricing will affect Melbourne Businesses

Melbourne’s commercial refrigeration market is now feeling the effects more acutely due to asset density, ageing plant, and increased demand for servicing and refills.

Key impacts will include:

With the 2026 import quota reduction now in effect, total refrigerant imports have decreased by approximately 600,000 kg nationwide. A further reduction is scheduled for 2028, which will place additional pressure on existing R404A‑based systems.

Local supplier advice indicates R404A is likely to become increasingly scarce within the next six (6) to twelve (12) months.

Retrofit Refrigerants: A Short‑Term Solution, Not a Long‑Term Fix

Many Melbourne businesses are investigating refrigerant retrofits using:

  • R448A
  • R452A

While these refrigerants offer lower GWP compared to R404A and are often compatible with existing equipment, suppliers have advised that:

  • Retrofit refrigerants may face supply constraints within the next 6–10 years
  • Their higher GWP ratings mean they remain exposed to future phase‑down pressure
  • Rising demand will likely affect pricing and availability

For organisations with critical refrigeration assets, relying solely on retrofit refrigerants may delay — but not eliminate — future risk.

What Melbourne Asset Owners Should Be Doing Now

For business owners and facility managers responsible for commercial refrigeration in Melbourne, proactive planning is now essential.

Immediate Actions

  • Identify all R404A‑charged equipment
  • Assess refrigerant leakage rates and criticality
  • Evaluate retrofit suitability on an asset‑by‑asset basis

Medium to Long‑Term Planning

  • Develop a staged refrigerant retrofit program
  • Plan for equipment replacement using low‑GWP systems
  • Evaluate natural refrigerant solutions such as CO₂ or ammonia where appropriate
  • Align capital planning with compliance and supply realities

Acting early reduces exposure to emergency failures, premium pricing, and lost operational uptime.

See the refrigerant transition roadmap –  Refrigerant Roadmap PDF