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    TACO ZONE SENTRY ZONE VALVE (2 Posts)

  • RICK JAMES RICK JAMES January 10, 2011 @ 2:33 PM
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    TACO ZONE SENTRY ZONE VALVE

    Any one using this zone valve?? Iam wondering about how they work in areas that have brown  outs with the power ,flow rates , energy efficiency and can you really run 12 valves on one transformer ??   
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  • Joe Mattiello Joe Mattiello January 13, 2011 @ 1:05 PM
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    zone sentry

    How do they work in areas prone to brown outs?
    They work fine when working within the area of 18, to 31.5 volts.  That would be considered an acceptable range. 
     
    The maximum flow rate?
    I would use the Cv published on the submittal data sheet to calculate what the added pressure drop to your system would be?  Always consider the 4’ per second rule for maximum velocity.
     
    12 valves per transformer?
    We tested the Zone Sentry today with 12 valves powered by a 40VA transformer using a ZVC404 as a test to determine how long it would take to open the valves when operating 12 in parallel, and experienced a charging time for all 12 actuators between 42 and 47 seconds. The specification appears to be adequate.

    the zone sentry submittal data sheet is attached 
     
    zone sentry valve submittal data 101-140.pdf
    joe mattiello
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