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Posted by Pete on January 12, 2006 at 08:27:27:
I have a Weil-Mclain boiler (model CG-5-SPDN), propane fired. In earlier posts I read where the cold water supply should be turned off after filling to correct pressure to 12 pounds. The turn off is upstream of the pressure recucing valve (Bell/Gossett 12 pounds). I would like to due to having a small drip that occurred from the bottom strianer cap (plastic variety) of the pressure reducing valve. I have unscrewd the cap and it appears the O-ring was a little off. It has since stopped dripping. But with a plastic cap and a brass valve I am paranoid that the cap could really fail and leak water all over the place. My question really is: Does my boiler have some sort of safety feature that kicks in should the pressure reducing valve fail and the water leak out of the system thus lowering system pressure since the cold water supply is truned off? I other words there a low water cutoff type feature with this boiler?