low-charge ammonia systems

As more end-users implement low-charge, or reduced charge systems, CO2 transcritical and CO2 cascade will also continue to maintain a force in the market and are currently playing a larger role in new, retrofit, and expansion projects. Hydrocarbons are getting more traction based on the regulatory environment and the industry may be seeing some more regulation in the form of building code changes in the near future. Alternatives to these new technologies could be new synthetics developed for HVAC systems, only time will tell. There are mounting concerns that current synthetics may not have transparent enough chemical data and safety records / history since limited testing or data is available at this time.

Everyday more companies are making commitments to sustainability, climate pledges and net-zero operations. While many industries rely on refrigeration for their products or processes, they may not fully understand the impact of systems options and refrigerant choices. IIAR and its members are in a fortunate position to know and understand the importance of utilizing natural refrigerants and how to evaluate options.

For those wanting a future proof solution, natural refrigeration technologies are the answer. IIAR is well equipped to assist with addressing concerns about heavily regulated ammonia. Fortunately, with the ever-changing regulation landscape, natural refrigerants are withstanding the test of time. Refrigeration applications with ammonia, even in small quantities, require management procedures for compliance and safe operations at these facilities. Ammonia Refrigeration Management for Low Charge (ARM-LC) Summary Guide and Guidelines, is intended for end users and to provide guidance on how to meet regulatory requirements and appropriately address elements needed to maintain a safe system. The Low Charge ARM package defines 12 elements that, when implemented properly, will help reduce the risks associated with a low-charge ammonia refrigeration system.

These elements are based on Occupational Safety and Health Administration (OSHA) and EPA guidance for complying with their respective General Duty clauses. The Low Charge ARM package simply outlines what to expect from those charged with developing the various parts of a management program and provides helpful templates to aid end-users. It is worth noting that many of the recommendations apply to refrigeration systems regardless of the refrigerant used. In addition, the ARM-LC guideline calls for the majority of the documentation and content be provided by the supplier if the low charge system, greatly alleviating this burden form the owner or end-user.