Results 1 to 4 of 4
  1. #1
    Join Date
    Jul 2005
    Location
    south
    Posts
    623
    Post Likes

    freeze drier cabinet help

    I have a bench top freeze drier at a pharmacy college that has a bad compressor. The manufacter of the unit has been out of business since 2006
    Compressor is a danfoss sc12b running on r403b.
    I am having a hard time trying to find any info on compressor so I can cross it over to a Tecumseh or Copeland replacement.
    Anybody got any suggestions? Can I use 404a to replace the r403b refrigerant in the system?

  2. #2
    Join Date
    Apr 2015
    Posts
    5
    Post Likes
    404a can get you to -60 but it'll be a compound compressor. Your bench top model probably isn't so you need to stick to 403b. Call Copeland and ask them to crossover for you.

  3. #3
    Join Date
    Sep 2013
    Location
    Atlanta, GA
    Posts
    344
    Post Likes
    that compressor line is no longer made by danfoss, secop now builds the sc compressors. you should be able to order the same compressor through united refrigeration

  4. #4
    Join Date
    Jul 2000
    Location
    Guayaquil EC
    Posts
    11,110
    Post Likes

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.
Quality Home Comfort Awards