Star Refrigeration Group announces new US subsidiary Azane Inc

Derek Hamilton
Business Development Manager - Azane Inc.

Azane Inc., based in San Francisco, will act as the regional headquarters to serve the North American industrial refrigeration market to meet the demand for their revolutionary “low charge ammonia” Azane technology.

The international group has announced the launch of a new subsidiary Azane Inc. to manufacture and supply their game-changing “low charge ammonia” Azane technology in the US.

The industrial refrigeration group, whose Azanechiller and Azanefreezer technology has been installed at some of the world’s leading organizations, developed the unique technology to meet the environmental and legislative challenges that the cooling industry was facing as Europe started the phase out of ozone depleting refrigerant R22.

The technology is being introduced to the US market at a key time, just as the US refrigeration industry begins to see the effects of the EPA’s R22 phase out program. The EPA’s phase out timetable for R22 will gradually decrease its production until a complete ban comes into force in 2020. The cost of R22 will continue to rise and existing R22 refrigeration systems will become uneconomical long before the substance is banned completely.

The Azanechiller and Azanefreezer are factory built industrial refrigeration packages and are both highly efficient and environmentally conscious. The design uses patented technology to deliver the lowest cost of ownership by minimizing running costs over 25+ years.

All Azane packages use the natural refrigerant ammonia and have been designed to operate with as little as one tenth of the charge of a traditional refrigeration system, therefore avoiding the burden of OSHA’s PSM and the EPA RPM requirements.

Ammonia is also futureproof. A natural refrigerant widely used for its environmentally friendly credentials – zero ODP and zero GWP – it is not under threat of being banned, unlike HFCs.

Derek Hamilton, US Business Development Manager at Azane, says: “The good news is that there are plenty of options available to allow a smooth transition away from R22.  Low charge ammonia is one of a number of options available and we are always happy to talk to our customers and guide them through the various options. There are a wide range of ‘drop in’ refrigerant options available – these typically consist of blends of hydrofluorocarbons (HFCs).”

“However, HFCs have an uncertain future due to their contribution to global warming. The US government has stated that a reduction in HFC consumption is one of the key targets in their plans to address climate change. While a firm timetable is yet to be published, it is only a matter of time before restrictions on the use of HFCs come into place as has already happened in Europe at the end of last year. Our approach is to look at the overall strategy of a business to ensure that they invest in the appropriate technology which is right for their needs.”

With manufacturing facilities in Pennsylvania, the energy efficient packaged ammonia chiller and freezer are fabricated following US standards and regulations and supplied nationwide. Azane Inc. also provides dedicated technical support, site surveys, proposals and training to HVACR contractors, consultants, operators and end-users.

The Azane product range of air cooled chilling and freezing solutions offers an environmental solution with a low total life cycle cost in a number of applications, including HVAC, food processing and freezing, process cooling, public refrigerated warehouses, ice rinks and more.

The factory built design of the Azane packages makes them suitable for new installations and upgrade projects. The packages require no machinery room and can be located close to the cooling demand, making the installation simple and low cost.

Derek Hamilton adds: “In the USA, the use of ammonia has historically been restricted to large, distributed refrigeration systems. These systems are typically site-installed and require a central machinery room to house the refrigeration equipment. These systems also tend to use ‘pumped circulation’ technology, which requires a relatively large quantity of ammonia.”

“The advent of ‘low charge ammonia’ means that ammonia is now being considered in applications which were typically the domain of ‘commercial’ systems. These commercial systems often use the HFC refrigerants mentioned above. Some users of HFC systems may be reluctant to switch to an ammonia system because of safety concerns, however the reality is is that ammonia systems in general are very safe and the low charge, packaged approach alleviates these concerns further by using the minimum amount of ammonia and ensuring that it stays within the refrigeration system.”

For further information or to see how we can help with your R22 phase out, contact or visit

Star Refrigeration Group announces new US subsidiary Azane Inc

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