i have had enough Please Help

grindog

do the circulators have ifcs sometimes there is a problem purging thrue them.

Dave_4

hay guys i have no leaks in my system i have cups under the PRV and check it everyday.

my pumps are gurgling again i just don't understand how air keeps getting in i have a Honeywell type spirovent. and no boiler leaks.

a few weeks ago i had air in the pumps after taking my expansion tank off to check the psi.

but hooked a hose up to each zone and purged it all out the pumps where nice and quite for over a week now with no problems. now air is clogged in the pumps again

we need to have air eliminators in the pumps :-)

thanks
Jason

Mark Hunt

Hi Jason


Are you on municiple water or a well?

Mark H

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Dave_4

municiple water and one zone is piped with some hepex plus

thanks mark

John H.

Air

Show a diagram of the near boiler piping with the locations of the feeder, expantion/diaphram tank, air seperator etc. also do you have piping underground if you do. Shut off the auto feeder and look at the pressure in a day or two to see if you drop pressure and may be adding air with fresh water.

grindog

internal flow checks

do the circulators have ifcs sometimes there is a problem purging thrue them.

Dave_4

here you go i also don't have any heating pipes underground

and all pumps are ifc i had no problems after i purged it they worked great for over a week

JOHN_103

do you have any float type vents up high on the retirns by any chance , also is that a second spirovent i see there possible on a return

Dave_4

hi john the second sprirovent was installed on that dhw zone before i put in the main honeywell.

but the dhw one is on the supply

thanks

JOHN_103

return vents

ok wasn'y sure about the 2nd spirovent ,but i have seen float vents allow air into systems when on the return

Brad White_20

What is

the total flow rate of all circulators when running at once (roughly). Flow rate relative to Spirovent size I am thinking, might not have the retention time necessary to do the work (although that is a stretch, they work very well.)

Wondering if you are running all out in cold weater all of a sudden. Are you venting any air or is it just air-like noise? My thinking is high velocity in the near-boiler piping. Is it inch or 1.25"?

Nice job by the way.

Brad

Dave_4

hi brad on the manifold both supply and return 1-1/4 with 3/4 take offs for the pumps
now the second pump is no longer in use both pump 1 and 3 are on all the time constant circulation baseboard loops

pump4 is dhw and yes it seams that since it got cold yesterday that this happened and i don't here air venting from the sprirovent but i do here my pumps gurgling again

also brad i am redoing the manifold this summer with home run and putting in towel warmer in the bath and replacing some baseboard with panel rads and will run 1 pump for the whole house

thanks
Jason

Brad White_9

Hi Jason

Do you get venting from the Spirovent if you run only one circulator?
It would seem that with only two and the occasional third DWH pump, the total flow would be in the range of 3-4 gpm per and 9-12 gpm total. Entirely reasonable for 1.25 inch pipe.

I would stop all the circulators for a short period then start/stop each circulator one at a time and let any air settle to the tops (if indeed it is air). See if manual venting at high points yields anything. I understand the IFC issue, the one thing I dislike about them is the purge difficulty.

Another thought is, if this is the first cold-snap since it was last filled, might the boiler have fired to limit and released more latent/dissolved air (boil-off) from the water? Hard to believe that a Spirovent would not work, especially where you have it...

Empire_2

Hi Jason

OK 1 more time. I dont think that you got back to me on your last post when I was asking about the direction of flow on the Taco pumps. You stated that you weren't sure what I meant. Looking at the curve of the valute (outlet),...It looks like to me that the pumps are pumping toward the expansion tank and spirovent. I may be wrong, but I just need to know. Maybe the picture is tricking my eyes into thinking that way.

adambuild

Clogged?

Could the Spirovent be clogged and therefore non-operational? You may have to open and clean it.

Dave_4

hi guys the spirovent is less then a year old. sorry mike for not answering you the pumps are on the supply pumping towards the return of the boiler.

i agree that purging ifc is hard :-) but i just don't want to have to purge every week like this or my boiler wont last it takes allot of water to purge a zone

since i will have to purge the system again anyway
maybe i will see if my fill has any dirt or scale built and wail it's off i will put a ball valve just under the spirovent before the fill and back-flow preventer this will make servicing them easier in the future

thank you all
Jason

Dave_4

update:
i took the feed apart and looked at the strainer their was a little brown at the bottom of the bowl but i cleaned it out and put it all back together a purged the system again so we will See what happens ;-)

thanks
Jason

Unknown

Rooster

What pressure are you purging the zones at ? I used to work with a few oldtimers who would keep the valve at the 12 psi mark for all the purging , and boy could you hear the heat running through the pipes later on ! It sounded like a fishtank and waterfall . I like to have the pressure between 20 and 25 psi for all the purging , and I make sure there's a bucket under the relief valve while doing it .

Dave_4

hi ron yes i purged each loop at 28psi

thanks

Terry_14

Sulpher water

An old method I use to test for sulpher or aireated water is to fill a soda bottle and then attach a kids balloon over the neck.

I always start with cold water and make sure the baloon is tight. The gas in the water will leave the water and inflate the balloon over night. The warm air of the house will drive the gas into the balloon when you remove the balloon hold it and then smell the contents.

Gas in water is driven out with heat.

Hope this helps

Terry

Joe Mattiello_2

Taco 4900 series vent

Perhaps you can try the 4900 airvent