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Posted by Harold hydronicnetwork.net on January 05, 2004 at 20:07:29:
In Reply to: Weil-McLain GV2 - HELP!!! posted by PH on January 05, 2004 at 19:52:43:
Have the system properly purged of air. Instructions are at:
Open all the zone valves manually and observe if the clanging does not occur. This would demonstrate that the clanging is the result of not all the zone valves being open, thereby not allowing the circulator to move all the water needed through the boiler. There are other ways of piping that Weil McLain describes that would prevent banging due to insufficient water flow.
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