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Posted by Brad on December 12, 2005 at 22:57:04:
In Reply to: Re: No response from McDonnell & Miller - need help posted by Heatpro on December 09, 2005 at 10:20:13:
I haven't found any areas where water is leaking, or excessive steam is venting. I have a radiator in our upstairs bathroom that doesn't get steam anymore (even with the steam vent off), but that's another issue I haven't had time to investigate.
Pressure limit is set for 0.5 psi.
Not sure about how the burner is set. Maybe this is a place to start.
Thanks for your advice.
: Any places water can leave the system so you have to add water weekly should be fixed.
: Is the pressure below 2 psig during operation? Too high a pressure will force water up the system and 4 psig can break steam vents on the radiators.
: High burner input rates can force steam pressure too fast and cause the same problems.
: The idea being that if you can make the operation more gradual and keep the switch from extremes, it shouldn't stick. There is always electronic water level controls available; but they shouldn't compensate for extreme steaming conditions.
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