From talking to both company's engineers, HAI was engineered as an automation panel first, as were the prior HAI products. Elk was engineered as a security panel directly off the drawing board.
While 99.9% of the installs out there are not UL listed, inspected and certificated, the point is that the product and devices that are listed for usage with the panel are extremely limited. UL's guidelines for a certificated install are specific, and while some items are off the wall, the majority of requirements err on the conservative and safe side.
HAI's product does not carry the same UL listings and classifications that Elk's does, which means that the product was not submitted and tested as thoroughly via UL for a UL listed system and product, which is specific down to the enclosure it's mounted in, which Elk's offerings are all UL listed. In layman's terms, it means it was not tested thoroughly to be suitable for the uses it's intended for. All I can say is, barring the items that weren't evaluated by UL, look at the UL listings each one carries.
While the majority of people aren't going to worry about it, what it means to me is that I can't install a HAI in certain applications "legally" without exposing myself to liability. There are also some municipalities and inspectors that will not accept certain products, and I have at least 4 municipalities that will not accept a HAI panel for fire alarm or CO detection. It may work, but without that piece of paper or manual, it hasn't been proven beyond a doubt to the AHJ's that it's suitable for it's intended purpose.
While 99.9% of the installs out there are not UL listed, inspected and certificated, the point is that the product and devices that are listed for usage with the panel are extremely limited. UL's guidelines for a certificated install are specific, and while some items are off the wall, the majority of requirements err on the conservative and safe side.
HAI's product does not carry the same UL listings and classifications that Elk's does, which means that the product was not submitted and tested as thoroughly via UL for a UL listed system and product, which is specific down to the enclosure it's mounted in, which Elk's offerings are all UL listed. In layman's terms, it means it was not tested thoroughly to be suitable for the uses it's intended for. All I can say is, barring the items that weren't evaluated by UL, look at the UL listings each one carries.
While the majority of people aren't going to worry about it, what it means to me is that I can't install a HAI in certain applications "legally" without exposing myself to liability. There are also some municipalities and inspectors that will not accept certain products, and I have at least 4 municipalities that will not accept a HAI panel for fire alarm or CO detection. It may work, but without that piece of paper or manual, it hasn't been proven beyond a doubt to the AHJ's that it's suitable for it's intended purpose.