Results 1 to 8 of 8

Thread: Return Size

  1. #1
    Join Date
    Jan 2004
    Posts
    27
    I have a two story home appr. 2700 sf. I have a return in the upstairs hallway appr. 50" X 24". When I put a new filter in the force of the suction will literally suck the filter out of my hand if I let is go. Is this an indication of being undersized or normal. I do not have any returns downstairs, mainly due to access. Thanks for any advise.

  2. #2
    Join Date
    Aug 2002
    Location
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Posts
    18,836
    It could be ,hard to tell without being there.

    That's a very large filter,what size and model number system do you have??

  3. #3
    Join Date
    Dec 2004
    Location
    Derby City
    Posts
    3,964
    You really should call in a professional. Until someone looks at the system it is purely speculation on our part. Fixing one problem only to create another is not doing you any favors. All we can do here is speak in very broad generalities.
    Everyone has a purpose in life..........even if it's to be a bad example.

    Seek first to understand, before seeking to be understood.

  4. #4
    Join Date
    Jan 2004
    Posts
    27
    D.."freakin" ash. The legendary one.
    I have a 5 ton Carrier. Not too sure of the model.
    Home built on 1972. Houston, texas. Condensor about 7 years old. Duct work replaced 3 months ago. Furnace is about as old as me!! It is a Quatro furnace.

  5. #5
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,296

    What does a Hard Sucker do?

    Originally posted by mosestr
    I have a two story home appr. 2700 sf.
    I have a return in the upstairs hallway appr. 50" X 24".
    Grab the filter ...

    Filter area of 1200 Square Inch
    (~ 8 square feet or FOUR 24"x 24" filters)
    is MORE THAN Adequate!

    One Carrier 5-ton:
    2,000 CFM/8 S.F.= 250 FPM Face Velocity
    which is quite Low.

    Hopefully, more than 2 Square Feet flow area of hard duct
    runs from the return grilles/filters to the Air Handler/ furnace.

    [Edited by dan sw fl on 08-24-2005 at 09:19 PM]
    Designer Dan
    It's Not Rocket Science, But It is SCIENCE with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE

    Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities

  6. #6
    Join Date
    Aug 2002
    Location
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Posts
    18,836
    If the filter is that large it's fine.How's the duct size just behind it ,and the duct back to the furnace??

  7. #7
    Join Date
    Jul 2004
    Location
    midwest
    Posts
    2,868
    Depending on what type of filter you are using your grill size could be to small. Using standard filters it would be alright for 5 tons but not using some of the pleated filters available.

    Dan, it would be 2 not 4 24x24 filters.

  8. #8
    Join Date
    Aug 2002
    Location
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Posts
    18,836
    Originally posted by trane
    Depending on what type of filter you are using your grill size could be to small. Using standard filters it would be alright for 5 tons but not using some of the pleated filters available.

    Dan, it would be 2 not 4 24x24 filters.

    That's right,I was thinking standard filters,glad you added that.

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