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  1. #14
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,591
    Very seldom does an VS ECM motor go out.
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    How many times must one fix something before it is fixed?

  2. #15
    Join Date
    May 2007
    Location
    DC Metro Area (MD)
    Posts
    3,371
    Quote Originally Posted by beenthere View Post
    Very seldom does an VS ECM motor go out.
    Don't newer variable speed ECM motors have governors to restrict torque to 90%? I've noticed this with my system as the filter gets very dirty. Good feature, to protect the motor. I'll take a little less airtlow over an overworked motor any time.

  3. #16
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,591
    Quote Originally Posted by RyanHughes View Post
    Don't newer variable speed ECM motors have governors to restrict torque to 90%? I've noticed this with my system as the filter gets very dirty. Good feature, to protect the motor. I'll take a little less airtlow over an overworked motor any time.
    Yes they do.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  4. #17
    Join Date
    Jan 2002
    Location
    Ft.Worth,Tx
    Posts
    4,584
    Carrier - is BDP
    Bryant-Day-Night-Payne
    So, which dealer provided you the best information on design, load and the adapt of new system to your duct system. I would recommend Variable DRV system which ever system you decide on Lennox, Carrier or Bryant. ECM is standard motor with ECM design voltage to variable (pulse) voltage to decrease starting amps and to control amount of rpm.
    "Everyday above ground, is a good day".
    "But everyday that you have made a difference in someones life, may insure you stay above ground a little longer".<aircooled>

  5. #18
    Join Date
    May 2000
    Location
    Rochester, NY, USA
    Posts
    14,417
    Quote Originally Posted by beenthere View Post
    Very seldom does an VS ECM motor go out.
    ya, 98% of the time it's the module that takes a dive.

    Honestly, in the last 15 years I think I have changed out 1 entire motor and 5 modules
    LOVE has four letters

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  6. #19
    Quote Originally Posted by aircooled53 View Post
    Carrier - is BDP
    Bryant-Day-Night-Payne
    So, which dealer provided you the best information on design, load and the adapt of new system to your duct system. I would recommend Variable DRV system which ever system you decide on Lennox, Carrier or Bryant. ECM is standard motor with ECM design voltage to variable (pulse) voltage to decrease starting amps and to control amount of rpm.
    I had 6 bids and nobody seemed to do any sort of calc initially. They just told me what size furnace I needed by standing in my dining room and swinging their heads around. Most of them did examine the supply and returns at the furnace, but didn't look anywhere else in the house. The Carrier guy told me that he would re-do the return drop into the furnace for a cleaner proper installation saying the existing drop was larger than needed and would be kind of ugly. The Bryant guy told me that I needed an 80K furnace saying that 60K would probably be too small and I told him that everyone else suggested 60K or 70K. He called me back that night and told me that he did some sort of calc that came up with 48K btu and then offered that 60K unit would be the correct size. He didn't do any measurements while he was here, so I'm concerned that he just threw the numbers out to appease me. He also said that re-doing the return drop to the furnace was a waste of money. I did tell all of the dealers that I would like them to do a calc and properly size the unit if I decided to move forward and some of them agreed. I just hope the Bryant guy didn't fudge the numbers just to be in line with the others. Now that I think back on it, the Amana guy did actually do some measurements and spent about 2 1/2 hours at my house explaining things. He was the only guy that offered the variable speed unit and he did poke around a little more than the others. Maybe I should consider that option???

    I'm just confused. Everyone online is suggesting variable speed as the best option, but the dealers are pushing multi-speed / single speed. I just don't get it. There was one Lennox dealer that I spoke to on the phone the other day. He's very expensive, but he swore up and down that the EL296V was the best option for me based on our conversation saying that he could refer me to a bunch of people he installed them for and love them. Why does this have to be so complicated?

    If I go variable, should I install a whole-house, panel mounted surge protector?

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