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heat zone hammer

joe_66
joe_66 Member Posts: 30
in THE MAIN WALL
Pressure activated bypass

Comments

  • Reed
    Reed Member Posts: 56
    heat zone hammer

    Installed hot water baseboard heating system with four zones and on one zone when t-stadt is satisfied and zone valve closes there is some hammering. Never ran into this problem before on the many installations I have done. I have tried a few things to cure the problem and they haven't work. I am baffled. Can someone please lead me in the right direction?
  • KBP&H
    KBP&H Member Posts: 48
    Hammer

    What type of zone valves, etc... Honeywells can hammer sometimes, also may be relay noise on boiler,, Burnham RV's mount the relay on a panel, and the relay can vibrate the panel,,anyone will need more info on the system to help you out
  • Reed
    Reed Member Posts: 56
    heat zone hammer

    Heating system was installed in two story modular home so baseboard and kickspace heaters already installed. Installed a Peerless WBV-04 oil fired boiler. There are four zones. One for 2nd floor, two for 1st floor, and one for 50gal indirect water heater. All zones have Honeywell V80436-1012 3/4" zone valves on supply header ( 1-1/4 ). Return header is 1-1/4 and has a Taco 007 circ. The relay box is a Taco for four zones w/priority. The zone that hammers is on the 1st floor and is furthest away from boiler and is approx (from supply to return)100'.
  • Ron Schroeder
    Ron Schroeder Member Posts: 998
    Pull one of

    the return springs off the zone valve it will close slower
  • Reed
    Reed Member Posts: 56


    Bruce. Thanks for your suggestion. I guess you have run into this before. Have you found it to be common with Honeywell zone valves? I use them all the time and this is a first for me. I will try your suggestion on the job this week.
  • joe_66
    joe_66 Member Posts: 30


    Pressure activated bypass
  • joe_66
    joe_66 Member Posts: 30


    Sorry it's an O.C.D.
  • Joe Mattiello_2
    Joe Mattiello_2 Member Posts: 94
    Try Taco heat motor type zonevalves

    To eliminate the water hammer from the fast acting spring loaded valves. The Taco 570 series zone valve closes slowly to prevent, or at least minimize the water hammer. For your reference I have attached the catalog data information. For additional assistance visit www.taco-hvac.com
    Joe Mattiello
    Technical Support Technician
    Tel. 401-942-8000 X 484
    Fax. 401-942-2360
    1160 Cranston St
    Cranston, RI 02920
    joemat@taco-hvac.com
  • FredR
    FredR Member Posts: 62


    Verify the direction of flow. The valves will be noisy if not correct.
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