Results 1 to 3 of 3
  1. #1
    Join Date
    Sep 2010
    Location
    Livingston, Montana
    Posts
    16

    Old Dunham-Bush nomenclature

    Got an old D-B unit with a junk TX. Anyone know how to read the nomenclature? What's the tonnage? I'm tempted to say 1600 btu on the condensing unit? Never seen a model number with an ampersand in it.

    Condensing unit: AR-16H&C
    Evap. unit: C145

    None of our dealers can tell me anything about D-B.

  2. #2
    Join Date
    Dec 2000
    Location
    Flat Rock, NC
    Posts
    463
    surely its a decent sized unit, go with the compressor capacity at evap temp to size your valve. probably 1.25 to 1.5 ton

  3. #3
    Join Date
    Jul 2000
    Location
    Guayaquil EC
    Posts
    10,392
    Quote Originally Posted by montanabama View Post
    Got an old D-B unit with a junk TX. Anyone know how to read the nomenclature? What's the tonnage? I'm tempted to say 1600 btu on the condensing unit? Never seen a model number with an ampersand in it.

    Condensing unit: AR-16H&C
    Evap. unit: C145

    None of our dealers can tell me anything about D-B.
    I've got D/B literature dating from the 1960's and find nothing even close to that model number. Is this a belt-drive or a semi-hermetic? I don't recall ever seeing one with a 16 in the model number.

    For a short time in the 1960's they did make some 1/4 and 1/3 hp hermetic condensing units with Kelvinator or Tecumseh compressors, but I have no info left for those.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event