Equipment Numbers

Genesis

is there a website where i can look up equipment tonnage and specs of hvac units by model and serial numbers tnx.

Bob Kovacs

Pretty much every manufacturer has that info for their equipment on their website- were you looking for something more?

Bob

Genesis

Thanks Bob, I tried on some websites but couldn't get info, probably have to register as a dealer on the site but i was hoping to find a single website that had info on all makes and models, say you have a unit that the nameplate is off and you can't make out the entire model# i'm just starting my own small business and it seemed like my ex-employer could just type in partial #'s and get results at some website but it's possible that it was installed software of some kind you don't happen to know the names of the books that will have info on all units or at least most of em and where to get a good deal on em i'm certain that those books exsist somewhere cause i browsed though them before Thanks.
Genesis

HVAC Doc

One of the best resources out there: http://www.prestonguide.com/ it gives you tonnage, capacity, AFUE, SEER, and EER of the unit when it was new, and date of manufacture.

Genesis

thanks doc very helpful!

Bestheating

Once in a while there is a furnace, but more typically and air conditioner which defies a good identification. Just remember though, work with what you have and take readings. Temperature rise and superheat are examples. If you are replacing with new, don't go by what's there, size your equipment to the building. Actually, most equipment has numbers, but sometimes they can be difficult to decode. Furnaces are typically 20-25,000 BTU per burner. Typically... Air conditioner numbers are typically victims of faded ID plates, but don't worry. Just make it run by the numbers. If it needs a compressor, they are often labeled individually.
Above all, watch and you will soon see how many of your jobs have equipment oversized for the building and don't fall victim to replacing with like sizing. Your successor will be back to replace the heat exchanger in the future. After awhile, you will just know when it's not right and what needs to be done. Then will you be worth the big bucks!