Results 1 to 4 of 4
  1. #1
    Join Date
    Sep 2010
    Location
    india
    Age
    38
    Posts
    5
    Rep Power
    0

    parameter of 407c refrigerant



    respected sir
    im a ac technician and now working on daikin air conditioning system that is roof top units with 25 TR capacity ,,,,but what im facing a problem is the suction line getting ice with 45 psi,,,and exactly do not know the parameter of 407c refrigerant please help me out to solve this problem i need the information for actual suction and discharge pressure,,,,please reply fast



  2. #2
    Join Date
    Sep 2007
    Location
    Split Croatia
    Age
    57
    Posts
    6,175
    Blog Entries
    6
    Rep Power
    36

    Re: parameter of 407c refrigerant

    Suction and discharge pressure depend on temperature of air which passing to heat exchangers, their construction, their cleanliness, amount of air, amount of humidity of air, cleanliness of filters, etc....

    Go here first:
    http://www.refrigeration-engineer.co...ad.php?t=19701

  3. #3
    Join Date
    Mar 2009
    Location
    KZN, South Africa
    Age
    63
    Posts
    2,212
    Rep Power
    20

    Re: parameter of 407c refrigerant

    You may want to download & run Coolpack 1.49.

    http://www.ipu.dk/English/IPU-Manufa.../CoolPack.aspx

    This will provide property information for R-407c.
    Engineering Specialist - Cuprobraze, Nocolok, CD Technology
    Rarefied Technologies ( SE Asia )

  4. #4
    Join Date
    May 2008
    Location
    Malta
    Age
    67
    Posts
    67
    Rep Power
    16

    Re: parameter of 407c refrigerant

    This is definitely not a normal condition and your suction pressure is too low how low depends on the temperature where the indoor unit is,and you should inspect its condition if the coil is icing up and reducing airflow you have a shortage of gas.I suspect that you have little or no experience with refrigeration as these are basic procedures so I wouldn't bother with the Ph chart first concentrate on the basics.

Similar Threads

  1. Superheat and Subcooling
    By Chunk in forum Fundamentals
    Replies: 42
    Last Post: 15-01-2011, 02:24 AM
  2. Leak Testing?
    By Thana in forum Trouble Shooting
    Replies: 36
    Last Post: 31-08-2010, 02:57 PM
  3. CARE refigerants by BOC
    By dogma in forum Refrigerants
    Replies: 8
    Last Post: 23-03-2010, 01:39 PM
  4. MHI FDCA400HKXRE4 Tech Info Please
    By L.JT in forum Trouble Shooting
    Replies: 5
    Last Post: 23-08-2008, 11:00 PM
  5. fun quiz
    By Brian23 in forum New to RE
    Replies: 6
    Last Post: 02-10-2007, 10:18 PM

Posting Permissions

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