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  1. #14
    Join Date
    Jul 2018
    Location
    Wisconsin
    Posts
    888
    Post Likes
    Could a boiler staging control with reset be used? Tekmar maybe.

    Sent from my SM-G960U using Tapatalk

  2. #15
    Join Date
    Mar 2019
    Posts
    13
    Post Likes
    Why dont you call the expert technician and ask for the help?

  3. #16
    Join Date
    May 2018
    Location
    VA/DC
    Posts
    206
    Post Likes
    A staging control would be best. no need for two to run if the load doesn't need it. Boilers do like to run longer then shorter. The flue likes it also. Get past the condensing stage.
    A big part of efficiency loss is the start up time.

    with staging if one fails the other will kick in.

    Now staging and its efficiency does change with piping. is it pump through or primary secondary. if PS are there check valves?

  4. #17
    Join Date
    Jun 2011
    Location
    Pulaski, NY
    Posts
    30
    Post Likes
    Your customer would certainly see efficiency benefits with staging the boilers. This could be done with a boiler lead/lag controller or could be set up with varying set points where the lag boiler would start only if the lead boiler fails to keep up with the demand or goes into a fault. Also, depending on the model and burner control, it could be something as simple as relay logic that would start the lag boiler when needed.

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