mdk0420
Well-Known Member
Hello all! Another amateur question for my heating system project. I wanted to test all the soldering points before the inspector comes by and I didn't realize that the boiler won't allow any water to pressurize the system without it being turned on but it isn't ready to function yet (Gas is still turned off and venting still needs to be done this weekend). I was thinking of bypassing the recirculator in the boiler by installing a hose on the potable water supply onto the purge/flush hose end shown in the picture below (Either the red/blue isolation valves on the right side of the picture). Then hooking it onto the drain in the bottom left of the picture.
Easy enough to do... but what I'm afraid of is the 60 PSI that my main shoots out. I see no reason why the copper piping shouldn't be able to handle this pressure (I mean... it's made for it afterall...) but there is the air separator and the circulator pump that is normally only subdued to 30 PSI max before the pressure relief lets go. I will leave the shutoff valve off that leads into the boiler so not to pressurize any of the internals. This will allow me to test all the joints and connections up what is left on the hot water supply isolation valve.
Easy enough to do... but what I'm afraid of is the 60 PSI that my main shoots out. I see no reason why the copper piping shouldn't be able to handle this pressure (I mean... it's made for it afterall...) but there is the air separator and the circulator pump that is normally only subdued to 30 PSI max before the pressure relief lets go. I will leave the shutoff valve off that leads into the boiler so not to pressurize any of the internals. This will allow me to test all the joints and connections up what is left on the hot water supply isolation valve.