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primary/secondary

When using a regular atmospheric hot water boiler with primary/secondary piping....how do I control the primary pump? System is going to have four high temp baseboard zones.....and three radiant zones with 3 way mixing valves.....should that I use a relay to turn primary pump on whenever any zone call for heat or outdoor reset Paul s
ASM Mechanical Company
Located in Staten Island NY
Servicing all 5 boroughs of NYC.
347-692-4777
[email protected]
ASMHVACNYC.COM
https://heatinghelp.com/find-a-contractor/detail/asm-mechanical-company

Comments

  • The easiest way

    is to wire it off the boiler if it has a pump relay.



    If not, create you're own pump relay off the end switches as you say.
    Often wrong, never in doubt.
  • Paul SPaul S Posts: 1,216
    primary/secondary

    Do you recommend one pipe primary secondary or two pipe on a residential home? Heat loss of home about 160000btuh's...thanks Paul s
    ASM Mechanical Company
    Located in Staten Island NY
    Servicing all 5 boroughs of NYC.
    347-692-4777
    [email protected]
    ASMHVACNYC.COM
    https://heatinghelp.com/find-a-contractor/detail/asm-mechanical-company
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