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-   -   Induction fan for a carrier 48gp (https://www.askmehelpdesk.com/showthread.php?t=417277)

  • Nov 18, 2009, 05:36 PM
    sampson79

    I have been looking for a diag. for two weeks
  • Nov 18, 2009, 05:37 PM
    sampson79

    Wait brown is marked I think there is a B written next to a prong... I need the purple
  • Nov 18, 2009, 05:42 PM
    Joshdta

    http://www.docs.hvacpartners.com/idc...48gh,gl-1w.pdf


    This may help . Still looking.
  • Nov 18, 2009, 05:52 PM
    Joshdta

    Nope that last link does not have the gp, no luck on finding it either.
  • Nov 18, 2009, 05:57 PM
    sampson79

    I got a camera I am trying to up load pics now
  • Nov 18, 2009, 06:17 PM
    sampson79
    How do I import pics
  • Nov 18, 2009, 06:24 PM
    KC13
    Pages 3 & 4 on the link, "IFM" is what you're looking for. Brown connects to one side of the capacitor, yellow & "L2" connect to the other side of the capacitor, and purple connects to "L1".
  • Nov 18, 2009, 06:26 PM
    sampson79

    Thanks for the help man
    I guess I am going to have to hire sombody to come and fix this. You guys were great
    Thanks again
  • Nov 18, 2009, 06:32 PM
    KC13
    Quote:

    Originally Posted by KC13 View Post
    Pages 3 & 4 on the link, "IFM" is what you're looking for. Brown connects to one side of the capacitor, yellow & "L2" connect to the other side of the capacitor, and purple connects to "L1".

    Oops... "IFM" is "indoor fan motor", not "inducer fan motor". I would bet that, fundamentally, the wire colors represented would be correct in how to wire the motor & capacitor.
  • Nov 18, 2009, 06:33 PM
    Joshdta

    Are you sure that is the right diagram, I was not thinking so. That's what I was thinking, indoor fan motor.
  • Nov 18, 2009, 06:35 PM
    KC13
    It's pretty close, but not exact.
  • Nov 18, 2009, 08:31 PM
    sampson79
    KC... would yellow attach to the side of the cap. That there is already a yellow running to?
    I think I Know where the brown attachs it is marked "B"... It's the purple wire I am asking about
  • Nov 18, 2009, 08:52 PM
    KISS

    You guys are beating yourselves to death. Make a phone call or send an email. A.O.Smith Electrical Products Company

    But you need to know the model of the motor.

    They are very receptive.

    Quit knocking yourselves out.

    We don't count ground. If we can assume a PSC motor, a few reistance checks and your done.

    Green ground - (check)


    We can figure it out with a few resistance checks.

    Think of 3 wires and one is tapped (not quite center), call that point C

    The lower resistance to C is neutral
    C is L1
    The higher resistance goes to the cap
    The other side of the cap goes to L1

    There may be a reverseable plug on the motor. That changes direction.

    DONE!

    PS: I think there is an XREF on the AO site too.
  • Nov 18, 2009, 08:54 PM
    KC13
    Quote:

    Originally Posted by sampson79 View Post
    KC.... would yellow attach to the side of the cap. that there is already a yellow running to?
    I think i Know where the brown attachs it is marked "B"...... It's the purple wire i am asking about

    I can't find a diagram for your unit, so I am unsure what the function of the "B" terminal is. The yellow motor lead should connect to the capacitor with the "L2" power supply lead - probably yellow. The brown motor lead should connect to the unoccupied capacitor terminal. The "B" terminal may be a controlled/switched line voltage output for the inducer, in which case the purple lead would connect there. If you can provide the complete model #, I may have more success in tracking down a diagram.
  • Nov 18, 2009, 09:04 PM
    sampson79
    Complete model number for the motor or for the unit
  • Nov 18, 2009, 09:06 PM
    KC13
    Quote:

    Originally Posted by sampson79 View Post
    complete model number for the motor or for the unit

    The unit will do for now.
  • Nov 18, 2009, 09:10 PM
    sampson79

    48gp-048090311
  • Nov 18, 2009, 09:11 PM
    hvac1000
    Look at page 21 at the drawing. Then look at IDM which is your draft inducer motor. Then look at V10 which is Violet=Purple then to W50 then to CM. Then you will see where the wire goes.

    This wiring is for a 3 phase unit BUT all the units use single phase for this part of the wiring.

    Always check voltages when connecting and I believe that fan is 230 volt not 23 volt.

    That little motor also has a capacitor also so you should have got a new one since they go bad or can cause the motor to fail. The capacitor is a lot cheaper that a new motor so I suggest you replace it also.

    http://www.docs.hvacpartners.com/idc...t/48gp-3pd.pdf


  • Nov 18, 2009, 09:13 PM
    hvac1000
    BTW here is the main page in case you want to look up other stuff.

    48GP, Product
  • Nov 18, 2009, 09:17 PM
    sampson79

    http://www.shutterfly.com/lightbox/v...bbd47cbb382743
  • Nov 18, 2009, 09:18 PM
    sampson79
    That is one bad pic of theboard
    I can get better ones
  • Nov 18, 2009, 09:20 PM
    hvac1000
    Your answer is in my post and I cannot access your pictures. LOL
  • Nov 18, 2009, 09:20 PM
    sampson79

    Can you see the "y" and "B" he wrote on the board
  • Nov 18, 2009, 09:21 PM
    KC13
    Quote:

    Originally Posted by KeepItSimpleStupid View Post
    You guys are beating yourselves to death.

    It's a slow Wednesday. May get help with that tomorrow... :D
    Quote:

    Originally Posted by KeepItSimpleStupid View Post
    But you need to know the model of the motor.

    Who was it that said, "Ask, and ye shall receive"? I'm waitin'...
    Quote:

    Originally Posted by KeepItSimpleStupid View Post
    Quit knocking yourselves out.

    The Sominex isn't working...
    Quote:

    Originally Posted by KeepItSimpleStupid View Post
    We can figure it out with a few resistance checks.

    My meter probes are too short...
  • Nov 18, 2009, 09:21 PM
    sampson79

    OK like I said not hvac is not my cup of tea
  • Nov 18, 2009, 09:22 PM
    sampson79
    Yellow is going to go to the top of the cap with the other yellow already hooked up
    The brown will go to the B marked on the top right of the mother board and the violet will go to the bottom of the cap?
  • Nov 18, 2009, 09:24 PM
    hvac1000
    Look at page 21 at the drawing. Then look at IDM which is your draft inducer motor. Then look at V10 which is Violet=Purple then to W50 then to CM. Then you will see where the wire goes.

    This wiring is for a 3 phase unit BUT all the units use single phase for this part of the wiring.

    Always check voltages when connecting and I believe that fan is 230 volt not 23 volt.

    That little motor also has a capacitor also so you should have got a new one since they go bad or can cause the motor to fail. The capacitor is a lot cheaper that a new motor so I suggest you replace it also.

    http://www.docs.hvacpartners.com/idc...t/48gp-3pd.pdf
  • Nov 18, 2009, 09:25 PM
    hvac1000
    I posted it again so you would not miss it. This is for your exact unit. Click the link and follow the directions to the page etc.
  • Nov 18, 2009, 09:28 PM
    sampson79

    You don't understand I don't uderstand this
    I have no idea what w50 is.
    You have to put it in "lay man terms"
    Yellow to cap top
    Purp to cap bottom
    Brown to mother board
  • Nov 18, 2009, 09:30 PM
    sampson79

    Does it matter what side of the cap I hook each wire to??
  • Nov 18, 2009, 09:31 PM
    sampson79

    What is CM
  • Nov 18, 2009, 09:31 PM
    KC13
    Quote:

    Originally Posted by sampson79 View Post
    You dont understand I dont uderstand this
    I have no idea what w50 is.
    You have to put it in "lay man terms"

    He did, actually. Maybe it's time for a pro...
    Quote:

    Originally Posted by sampson79 View Post
    yellow to cap top
    purp to cap bottom
    brown to mother board

    Have your 3 wishes ready...
  • Nov 18, 2009, 09:34 PM
    KISS

    No, not for motor caps.
  • Nov 18, 2009, 09:34 PM
    sampson79

    Damn I am so close I thank you guys for the help... I just need heat and I am broke construction is down as you guys know and I am hurting for the dollar. If I could send pics I would think you guys could exsplain it to me
  • Nov 18, 2009, 10:01 PM
    hvac1000
    Sampson79

    The link has a drawing. It is very simple and I explained what page etc so you would have no problems. The wiring works its way back to the circuit board and CM is marked on the board. The wiring diagram shows you what colors off the motor goes where so as to mak it simple for you to figure out and that is why I posted it to start with to make it easier for you to see how it was wired. I also meant what I said about the capacitor for that motor you are replacing. If it is weak or defective the new motor you just bought will go out and then you will have to buy another motor since any warranty you got with the new part will not be covered.


    BTW CM stands for Combustion Motor. As in the combustion motor terminal on the circuit board where it is located.
    Good luck
  • Nov 18, 2009, 10:21 PM
    sampson79

    Thanks man I thank you for the help
  • Nov 18, 2009, 11:43 PM
    hvac1000
    No problem we try to help as best as possible.

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