# American Blower Company in Detroit

**URL:** <https://forum.nachi.org/t/american-blower-company-in-detroit/125054>\
**Category:** Inspecting HVAC Systems\
**Created:** [July 19, 2018, 4:30am UTC](https://forum.nachi.org/t/american-blower-company-in-detroit/125054 "2018-07-19T04:30:10Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dbowers](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/dbowers/32/59651_2.png) [@dbowers](https://forum.nachi.org/u/dbowers)\
**Post date:** [July 19, 2018, 4:30am UTC](https://forum.nachi.org/t/american-blower-company-in-detroit/125054/1 "2018-07-19T04:30:10Z")

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Was inspecting a block house today and it had the coolest double AC unit in the garage. It was made by a company called American Blower out of Detroit.

Had semi-hermetic compressors at both ends of the unit; freon and water lines going to it. Nothing came on so I could not check it in operation. Data tag was worn but for size it said … 3C7-1. Model # was 251-3. S/N was 7B1109-F

Wondering if that means the age is 11th month of 2009 OR 9th month of 2011. Never did peg the size.

What do you guys think?

![IMG_2250.JPG](https://global.discourse-cdn.com/internachi/original/3X/6/d/6d857c86c8727df56b5f12fad9dafe24d96c8037.jpeg)

![IMG_2224.JPG](https://global.discourse-cdn.com/internachi/original/3X/2/6/2695e7538ae6570fea3c81db20da6ecd601e22e0.jpeg)

![IMG_2217.JPG](https://global.discourse-cdn.com/internachi/original/3X/5/8/58a4c1e3256ca1768599ca947b2d3203e6cc0e0d.jpeg)

![IMG_2264.JPG](https://global.discourse-cdn.com/internachi/original/3X/2/0/2074509b692b6d7074ea30fd2e92c84ae9911d59.jpeg)

![IMG_2249.JPG](https://global.discourse-cdn.com/internachi/original/3X/e/e/ee133d7d1cfe3478367edb0fb2647b0d0bb9abec.jpeg)