Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
If our community has helped you, please consider making a contribution to support this website. Thanks!

How do I hook it up?

Options
2»

Comments

  • hot_rod
    hot_rod Member Posts: 27,329

    you are sure the new motor is 240v not120?

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • kadini
    kadini Member Posts: 44

    OK swapped both white wires to one side of the CAP and the brown is on the other. And it works and does seem slightly noisier which I think means spinning faster.

    So assuming we didn't hurt anything with the mistakes looks like it's good to go.

    Now, about that replacement sequencer…

  • kadini
    kadini Member Posts: 44
    https://forum.heatinghelp.com/discussion/comment/1890397#Comment_1890397

    It says 210-230v on the box. Picture on the last page. Aw heck here is the box picture.

    motor box label.jpg
  • 109A_5
    109A_5 Member Posts: 3,881

    The sequencer, I'll try to find some specifications, I suspect there is a delay for the second stage. How long have you run the furnace for ?

    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
  • kadini
    kadini Member Posts: 44

    Before I swapped maybe a couple of hours. It was on but didn't run that whole time. Before the swap it easily quickly raised the house temp 2 degrees and then another 2 degrees. It's now been on ever since the swap but again not a lot for it to do right now.

  • 109A_5
    109A_5 Member Posts: 3,881

    It looks like the 'sequencer' is just a time delay relay with with two sections (that are the same) and 2 switches per section. The second switch may close some random time after the first contact in each section closes. The switch pins 1 & 2 also power the blower in heat mode. Since both sections seem to have the same specifications. Looks like the unit you found is a reasonable replacement. Just make sure you really need it.

    image.png

    image.png

    image.png
    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
  • kadini
    kadini Member Posts: 44
    edited 5:44AM

    I ordered the sequencer. Even though my in family expert blew the wiring I trust him that 2 of the heating elements aren't getting power from the sequencer. I watched him take those measurements. And even with this new part the total cost of parts including motor, mount bracket, capacitor and sequencer is less than just the hello we're here service charge from the company that didn't do anything.

    Is it reasonable to infer the problem all along was the old motor failing? The virtually inaudible performance of the new motor versus the old plus the lack of end play in the shaft makes me think the old motor was definitely failing for a while. A long while…

Categories