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Hot Water Boiler Extrol and Fill Valve

Hi,

Could someone tell me if the pressure setting of the fill valve (Watts SB1156F) and the charge pressure of the Extrol tank should be the same or how should it be set up. The valve came preset to 15 psi and the tank (size 60) is precharged to 12.

The house is a two story cape with only one zone.

Thanks,

Dan
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Comments

  • SWEISWEI Posts: 4,657Member ✭✭✭✭
    edited June 2013
    Both should be the same

    And set to the design pressure of the system.  15# is about right for a two story house -- unless the distance from the low point of the system to the high point is over 23 feet.



    Design pressure (minimum) = distance between those points times 0.434 plus 5 pounds.
    Post edited by SWEI on
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  • Old_Navy_BTOld_Navy_BT Posts: 2Member
    Thanks,

    No more dripping relief valve.
    · ·
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