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  1. #1
    Join Date
    Aug 2009
    Location
    michigan
    Posts
    23

    liquid filter drier -wrong direction?

    Worked on replacing a compressor on a package Lennox Heat Pump, and put a new liquid filter drier also. Put the unit back in service and everyting works okay, but then found out later we installed the liquid drier backward. Opps! We goofed up. We intend to go back this weekend when the building is unoccupied and correct it. My question is - what is the immediate consequence(s) having a drier installed backward? Thanks for your advice.

  2. #2
    Join Date
    Jun 2008
    Location
    Cincinnati, Ohio
    Posts
    2,171
    Restricted refrigerant flow.

  3. #3
    Join Date
    Mar 2009
    Location
    central illinois
    Posts
    532
    dude if you installed a drier backwards on a heatpump you installed the wrong drier
    work to live not live to work.

  4. #4
    Join Date
    Jan 2010
    Location
    lovley downtown central new jersey
    Posts
    62
    Quote Originally Posted by local553 View Post
    dude if you installed a drier backwards on a heatpump you installed the wrong drier

  5. #5
    Join Date
    Feb 2007
    Location
    Northern NJ
    Posts
    646
    there are bi-directional driers made specifically for heat pumps.

  6. #6
    Join Date
    Apr 2010
    Location
    KY,OH,IN
    Posts
    37

    Confused

    Quote Originally Posted by local553 View Post
    dude if you installed a drier backwards on a heatpump you installed the wrong drier
    My thoughts exactly!

  7. #7
    Join Date
    May 2008
    Location
    Myrtle Creek. Oregon
    Posts
    182
    I allways look for the two arrows for heat pump driers before installing. like what was mentioned, restriction of reff. as far as I know. I might be wrong.

  8. #8
    Join Date
    Jun 2009
    Location
    new jerseeeey
    Posts
    36
    wrong drier

  9. #9
    Join Date
    Dec 2005
    Posts
    1,826
    Heatpump system does not absolutely require bi-flow drier. remember those check valve guys.

    Pull the freon and change the drier before it burst.

  10. #10
    Join Date
    Dec 2010
    Location
    Down by the river
    Posts
    1,579
    Yep, Trane uses a 1 way drier in their heatpumps.

  11. #11
    Join Date
    Mar 2009
    Location
    central illinois
    Posts
    532
    that be true
    work to live not live to work.

  12. #12
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
    Posts
    13,817
    okay?
    I will be the dumb guy here!!!!!!!!!!!!!!

    yhe drier is in the liquid line right before the evap???

    when in hp mode the liquid is flowing back to the outside unit??

    why do you NOT need a bidirectional drier???????????????
    I WILL SELL WORK,GENERATE BUSINESS, GO GET NEW CUSTOMERS!
    YOU SHUT THE HELL UP AND QUIT RUNNING YOUR MOUTH!

  13. #13
    Join Date
    Apr 2005
    Location
    AZ
    Posts
    183
    Quote Originally Posted by supertek65 View Post
    okay?
    I will be the dumb guy here!!!!!!!!!!!!!!

    yhe drier is in the liquid line right before the evap???

    when in hp mode the liquid is flowing back to the outside unit??

    why do you NOT need a bidirectional drier???????????????
    because sometimes as mentioned there are regular driers with check valves. Flow is through 1 drier for heating and 1 for cooling

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