Inspectors may be unfamiliar with some of the HVAC accessory products that have been instituted into two of the most popular codes, such as the International Mechanical Code (IMC) and the International Residential Code (IRC).Many inspectors aren’t familiar with mini-splits, because the market segment hasn’t penetrated many jurisdictions, yet.
The following three reasons illustrate why installing contractors should know how these accessories fit into the codes: For example, the aforementioned accessories might fall under criteria from any number of code organizations, such as the International Code Council’s (ICC) International Energy Conservation Code (IECC) International Mechanical Code (IMC), International Residential Code (IRC) and the National Electrical Code (NEC) to name a few. Add the fact that all jurisdictions don’t adopt the same code criteria and the situation can become clouded. There are many codes and some can appear ambiguous however both contractors and inspectors might add to this ambiguity due to lack of knowledge on some of the current mandates. This is why contractors should arm themselves with HVAC accessories and code compliance knowledge.
Contractors may find themselves defending an installation accessory even when it’s code compliant.
These accessories are mandated for a variety of reasons, but they mostly fall under life-safety, efficiency, property protection or a combination of those categories.
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