Troubleshoot modern appliances with confidence…

Click here to check out our structured, online appliance repair training courses for rookies and experienced techs.

FAQs | Repair Videos | Academy | Newsletter | Podcast | Contact

Stay connected with us...

Samurai on Facebook - become a fan today! Sign up for our free newsletter and keep up with all things Appliantology. Subscribe to our YouTube channel for lots of appliance repair tips and help! Follow the Samurai on Twitter and get timely morsels of Appliantological Wisdom! Subscribe to our MST Radio podcast to learn secrets of the trade.
  • Announcements

    • Samurai Appliance Repair Man

      [Webinar] Basic Refrigeration Sealed System Thermodynamics   09/21/2017

      See this calendar event for details:                   
    • Samurai Appliance Repair Man

      Webinar Recordings Index Page   09/21/2017

      One of the benefits of your Professional Appliantologist membership is that you can attend the regular, live training webinars and you have access to the recordings as well. So if you can't make it to the live webinar, catch the recording at your convenience. The webinar recordings are conveniently listed for you on the Webinar Recordings Index Page.   

Archived

This topic is now archived and is closed to further replies.

dbiberdorf

Mismatch between condenser and evaporator

Recommended Posts

dbiberdorf   
dbiberdorf

I've got a newish house (built in 2005). I had a home inspection done as I approach the end of my bumper-to-bumper warranty. One question the inspector raised, in light of my general dissatisfaction with the a/c system in my house, is the mismatch between condenser and evaporator. The condenser is rated 3.5 tons, evaporator at 5 tons. Both are made by Goodman Manufacturing.

In researching all of this, I've found precious little in the way of hard data on what such a mismatch really implies for the system. I'm currently pressing the a/c contractor (by way of the builder) to show me that Goodman supports and recommends this configuration. In the meantime, I'd like to learn from the great minds here what the real implications of this setup are.

Any insight is appreciated.

Share this post


Link to post
Share on other sites

Need appliance parts? Call 877-803-7957 now!

AccApp   
AccApp

Yes, I've seen a similar combination before. It was a 13 SEER 3.5 ton condensing unit and the inside coil was a 5-ton 10 SEER unit. Ends up that is what Goodman spec'd for this condenser, didn't even need to change the piston in the coil.

Share this post


Link to post
Share on other sites
jdob28   
jdob28

I have a Ultra High Efficiency Tempstar system and they match a 2.5 ton condensor with a 3.5 ton evaporator.  I guess it raises the SEER rating.  Mine is a seer 14 system.

Share this post


Link to post
Share on other sites
Rrey199   
Rrey199

:dude: Your mismatch is bad news.

Sometimes the air handler is upsized by 1/2 ton to boost airflow in a system with alot of duct transitions, etc. Your system is limited to the condenser capacity. In other words the evaporator can try to remove 5 tons, but the condenser can only unload 3.5 tons. The rest results in higher pressures and a warmer evaporator coil.

If you can get the builder to straighten it out, you should have him do so.

Share this post


Link to post
Share on other sites
applianceman18007260692   
applianceman18007260692

what type of freon is the unit using?

Share this post


Link to post
Share on other sites