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Air to Air Heat Exchangers

Brad White_9
Brad White_9 Member Posts: 2,440
in THE MAIN WALL
Hey Gang-

I have an elementary school boiler plant and mechanical retrofit job here in MA. Corridors need ventilation (never had it).

One option on the table is to use sensible-only air to air heat exchangers. Residentially, Lifebreath seems to be the type but for this more commercial/institutional application, I am looking at the DesChamps EZ.

I am sure that there are others. I need three names for comptitive public work bidding requirements.

Higher quality is key, with dual (two-stage) exchangers. Many of you use these in higher-end homes and they might have a "bigger brother" line for the commercial world.

What names have you used and have been given good support?

Thanks!

Brad

Comments

  • Tim_33
    Tim_33 Member Posts: 83
    Heat X

    Is a brand of sensible only ATA HX that I have used in natatorium design. Wanted to recover the heat, not the humidity. The link http://www.xetexinc.com/energy_recovery/products/flat_plate_exchangers.html
  • Constantin
    Constantin Member Posts: 3,796
    Stirling Tech?

    They make a very nice ERV system from what I can tell. Jerry pointed them out to me since Stirling uses standard filters and other components in this wheel that make them a lot less expensive to maintain than some HRV/ERV cores.
  • Tim_33
    Tim_33 Member Posts: 83
    Others are...

    These are not sensible only, but if you need commercial manufacturer's of Energy Recovery Units, the ones we commonly either design on, or accept as "equals" are:
    Carnes, Greenheck, MicroMetl and Semco. This will at least give you 3 to bid. An alternate, not quite as effective as the others is RenewAire.
  • GMcD
    GMcD Member Posts: 477
    Other HEX AHU's

    I've used Venmar units up to 15,000CFM, and Engineered Air semi-custom LM series units with both heat pipe coils and the Hoval cross flow plate type heat exchangers, up to 18,000 CFM, no issues. I see the DesChamps and the Venmar units as almost "equal" when it comes to the larger commercial applications, using either heat-pipe coils or the cross-flow plate type heat exchangers. Our local large HVAC supplier that handles the Venmar stuff is pretty good, and it all depends on who handles them in your area.
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