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Posted by Greg on December 08, 2007 at 20:07:08:
In Reply to: Re: 2 issues, possibly related... posted by HeatPro on December 08, 2007 at 17:34:52:
: Use a known good pressure gauge from the boiler drain valve
Had that thought myself and tried it before I read your post... I put it not on the boiler drain, but on the purge spigot for the downstairs zone... read exactly the same as the one on the boiler... until the circulator turned on, then it read a few psi (say 4) lower... I figure that's to be expected as it was upsgtream of the circulator...
:The temperature gauge can also be wrong (as well as the 4081. A low limit differential of 15-20 degrees is probable, so that works.
Had that thought too, but I'm unsure how to measure the temp inside the boiler to check that gauge... Hopefully you can help with a suggestion, and hopefully one that won't involve opening the boiler drain... I just have a sneaking suspicion that once I open it it won't shut... ;-)
: No use in buying controls until the right readings are available. aluminum powder grease packets are available through suppliers.
Sounds like a good plan to me...
Thanks in advance for your continued help...
BTW, I assume you're in the business from your nickname, what area of the country do you work in?