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steam - zone valves

Al Letellier_9
Al Letellier_9 Member Posts: 929
in THE MAIN WALL
You can remove the motor and manually pull out the stem and secure it. That will leave it open. As to the traps, the A dimension becomes a B dimension with traps and you need a lot more height to get that condensate back to the boiler. If the pressure is low enough (vaporstat) you may be all right, but traps are designed to dump into a pressure free environment. IF you don't have enough height, the system will let you know ASAP...it won't work

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  • Ed B.
    Ed B. Member Posts: 5
    motorized zone valves-steam heat

    residential steam boiler-two motorized zone valves[honeywell 24 volt Q601B-3X1]hard to read could be wrong-main zone had previously failed in the open position and we left it that way-now smaller zone has failed in the closed position-is there a way to manually open valve and then wire boiler as one zone? the system has 3 returns which have air vents and traps - someone previouly removed condensate pump,making wet gravity returns,should I remove the traps or just leave them alone- 'A' measurement at boiler is good Thanks,Ed
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