EPA 608 license


As of January 1st 2018, refrigerant distributors such as RezCor/AAA Supply may only sell HFC refrigerants (including R410A, R407C, MO99, NU22B) to multi-family sites with a certified technician on staff. Therefore, in order to keep…

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HVAC Regulatory Update


As it happens in most industries, HVAC professionals now have to comply with new requirements in order to be able to keep working with their customers. Until recently EPA certification was only required to handle…

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Ductless Systems: A convenient – and economical! – solution


You’ve heard about it – the so-called “mini-splits” are a very practical and energy-efficient option for your cooling and heating needs, whether you have a small condo or a big house. A ductless heat pump…

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HVAC Regulatory Update


Until recently, EPA certification was required to handle R22 (because it is hydrochlorofluorocarbon “HCFC”) but not R410A (which is a hydrofluorocarbon “HFC”).  Effective January 1st 2018, all that changes – EPA regulations will require anyone…

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HVAC Maintenance Tip – Portable AC Units


Apartment communities should consider keeping portable air conditioners in their shop, since maintenance teams can get overwhelmed with AC work orders during the cooling season. Portable air conditioners can offer a temporary solution to keep…

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Corrosion grenades


One of the most overlooked HVAC maintenance tips in the multifamily industry is the use of corrosion grenades.  Most condensing unit (the outside unit of a split system) coils are made of copper tubing running…

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