Losing a little water pressure. how much is too much?

Losing a little water pressure. how much is too much?

PostBy: yutyoy On: Tue Jul 29, 2008 10:33 am

I hooked up the water lines to my Axeman Anderson AA130 and pressure tested it to make sure there were no leaks. i have never run this unit and the previous owners hadnt used it in a couple years. after i bled the air out, it held around 19 or 20psi. i let it sit for about a week and a half and checked the pressure. it was down to about 15psi. i looked for any sign of water and i saw none in the firebox or ash pit. the only place i saw any was where i soldered the connection of the water line in and a litte around the boiler drain. they were both just little drops and not even a constant leak. does this sound about right. i want to make sure it will be ok to run. and im not really sure what the typical amount of water loss is. keep in mind that i did this cold. it isnt fired. any advice?
yutyoy
 
Stove/Furnace Make: Axeman Anderson
Stove/Furnace Model: A-A130

Re: Losing a little water pressure. how much is too much?

PostBy: Yanche On: Tue Jul 29, 2008 10:58 am

It will leak more when heated. Unless it just a test of the boiler, 20 psi is much to high. Do you have an expansion tank? Do you have a pressure reducing regulator on your water supply line? What pressure is it set at?
Yanche
 
Stoker Coal Boiler: Alternate Heating Systems S-130
Coal Size/Type: Anthracite Pea

Re: Losing a little water pressure. how much is too much?

PostBy: stoker-man On: Tue Jul 29, 2008 11:17 am

If you filled just the boiler and no piping, and filled it to the top, it doesn't take much more than a few drops to lose pressure. Also, the water may have cooled off.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

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Re: Losing a little water pressure. how much is too much?

PostBy: Freddy On: Tue Jul 29, 2008 1:19 pm

If there is no expansion tank, get one. If there is, was the air pressure in the tank checked before installation? All water pressure must be off the tank before checking. If for some reason the tank had 30 PSI in it, it's not a tank, its a plug.

Shut off the water going to the boiler. Open the boiler drain and drain a few cups. If the pressure doesn't change to speak of you can assume the tank is OK. Now, make the pressure 15 pounds shut off the water & check it in a few days.
Freddy
 
Stoker Coal Boiler: Axeman Anderson 130 (pea)
Hot Air Coal Stoker Stove: Reading piece o' junk in the barn (rice)
Coal Size/Type: Pea size, Superior, deep mined

Re: Losing a little water pressure. how much is too much?

PostBy: yutyoy On: Tue Jul 29, 2008 2:10 pm

i have an expansion tank...but i didnt even think to take that into account. and yeah, i do have a pressure regulator on the line. im no plumber.....obviously. haha :D
yutyoy
 
Stove/Furnace Make: Axeman Anderson
Stove/Furnace Model: A-A130

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