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Thread: T-stat obsolete...now what?

  1. #1
    Plumber jimbo's Avatar
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    Aug 2004
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    Default T-stat obsolete...now what?

    Customer has Honeywell T4039V1001 line voltage stat which Honeywell lists as obsolete with no replacement available. Now what? Anyone know a way around this?

  2. #2
    In the Trades MaintenanceMan's Avatar
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    Dec 2008
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    It would help to know what kind of unit your working with, but a possibility could be to install a transformer relay at the unit, junction/wire nut the line voltage at the old stat, and run a new standard t-stat and wire. It would be helpful to know more about the system.


    Or one of these might suit your needs

    http://www.prothermostats.com/catego...FRykagodCBjMAg
    Last edited by MaintenanceMan; 12-19-2008 at 12:18 PM.

  3. #3
    Plumber jimbo's Avatar
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    Thanks for the input. It is a fan/coil system. I finally got through to a person at Honeywell and they suggested TB6575, which looks like it will be a go.

    Thanks again,

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