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Old 01-28-2012, 11:46 AM   #1
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reversing airflow Goodman GMPN 060-3 furnace


Can anyone tell me how to change airflow from updraft to downflow on a Goodman GMPN 060-3?
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Old 01-28-2012, 12:12 PM   #2
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reversing airflow Goodman GMPN 060-3 furnace


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Can anyone tell me how to change airflow from updraft to downflow on a Goodman GMPN 060-3?
Flip the unit but need find if its able to be flip for down flow. Some units can be and some can't be flip
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Old 01-28-2012, 12:15 PM   #3
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reversing airflow Goodman GMPN 060-3 furnace


Why do you want it change?
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Old 01-28-2012, 12:22 PM   #4
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reversing airflow Goodman GMPN 060-3 furnace


Was told this could be used as downflow, if I flip ( turn furnace upside down? ) does the vent fan need to be flipped so drain tube is on the bottom, anythinng else need flipping?
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Old 01-28-2012, 12:36 PM   #5
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reversing airflow Goodman GMPN 060-3 furnace


Get the installer book out and will tell you how to do it
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Old 01-28-2012, 12:37 PM   #6
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reversing airflow Goodman GMPN 060-3 furnace


But you may have to redo the metal
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Old 01-28-2012, 12:45 PM   #7
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reversing airflow Goodman GMPN 060-3 furnace


Replaced furnace is a downflow, was old 68 intertherm, sucked gas bad, thought I'd save the earth (and $ ) and go 92% eff, bought use from serviceman, was told could be used as downflow, never installed one upside down tho,
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Old 01-28-2012, 12:58 PM   #8
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reversing airflow Goodman GMPN 060-3 furnace


No manual, found on internet but wasn't real clear...never said anything about installing upside down to change airflow
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Old 01-28-2012, 01:19 PM   #9
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reversing airflow Goodman GMPN 060-3 furnace


(877) 254-4729 Goodman manufacturing may help to get a book
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Old 01-28-2012, 01:25 PM   #10
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reversing airflow Goodman GMPN 060-3 furnace


User manual only says multi positional. Might only mean upflow and left-right horizontal.
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Old 01-28-2012, 01:27 PM   #11
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reversing airflow Goodman GMPN 060-3 furnace



http://www.alltemp-hvac.com/gmpn.pdf

page 22 and 23


and yes those are some of the worst installation instructions I have ever seen.
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Old 01-28-2012, 01:33 PM   #12
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reversing airflow Goodman GMPN 060-3 furnace


Found a PDF says it's reversible.

But that model was a 1997 make. I'd be worried about the heat exchanger, if it isn't already compromised.
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Old 01-28-2012, 01:36 PM   #13
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reversing airflow Goodman GMPN 060-3 furnace


What read it saying to turn the draft motor around for down flow or up flow
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Old 01-28-2012, 01:39 PM   #14
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reversing airflow Goodman GMPN 060-3 furnace


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Found a PDF says it's reversible.

But that model was a 1997 make. I'd be worried about the heat exchanger, if it isn't already compromised.
Most goodman heat exchangers have 20 years warranty
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Old 01-28-2012, 01:43 PM   #15
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reversing airflow Goodman GMPN 060-3 furnace


Quote:
Most goodman heat exchangers have 20 years warranty
what good is the warranty if you still have to pay for the labor. You dont buy a used furnace just to have to put a heat exchanger in it. And you'll be putting the same design heat exchanger in that already failed once.
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