How Rheem Helped a North Sydney Office Go Green with a High-Performance Heat Pump System

30 June 2025

In the heart of North Sydney, a major office tower has taken a big step toward sustainability. With the help of Rheem Commercial, 80 Pacific Highway has replaced its aging gas system with a cutting-edge heat pump solution - reducing emissions, improving efficiency, and maintaining top-tier energy ratings.

 

The Brief

JJ Coleman Plumbing approached Rheem Commercial with a clear mission: retrofit the building’s gas-powered hot water plant to an all-electric system that could support modern amenities - including high-demand end-of-trip facilities - without compromising performance.

The new system needed to:

  • Maintain the building’s impressive 5 Star NABERS energy and water ratings
  • Reduce operational costs
  • Handle high water pressure requirements that standard systems couldn’t meet

 

The Solution: Rheem commercial heat pump system

Working closely with JJ Coleman Plumbing and engineering consultants LCI Consulting, Rheem Commercial designed a tailored hot water solution using its YF Series Air to Water (A2W) heat pumps and Crossflow Delivery Skid.

These advanced heat pumps use R1234yf refrigerant, which has an ultra-low Global Warming Potential (GWP) of less than 1, making them a smart choice for environmentally conscious buildings.

With an average energy efficiency rating (COP) of 4.23, the system delivers powerful performance while keeping energy use low. To ensure hot water is always available, even during peak demand, heating elements were added to the storage tanks for extra backup.

After a detailed site inspection, the team identified the car park adjacent to the existing plant room as the ideal location for the new system. The installation was carried out smoothly by JJ Coleman Plumbing in collaboration with Rheem Commercial.

 

The Kit

Here’s a look at the equipment that powers this high-performance system:

 

Planning a commercial upgrade? Rheem’s expert team can design a custom hot water solution tailored to your building’s needs - big or small. Contact us today to learn more.

Rheem Crossflow Delivery Skid

Rheem Crossflow Delivery Skid 800kW