Having a air problem with a loop system.

Joe Grosso

Ok here is the problem.Three zone hot watere heating system one for basement one for first floor and one for second floor.Job is in 15 years never had this problem before.Basement zone is getting air bound every few days.I cannot figure out where all the air is coming from.Basement zone piping all above the floor.Three taco 007 and no automatic air vent on the whole system.Any ideas where to start.I want to put a automatic air vent at the highest point in basement zone to purge the air,but I would like any suggestions about where you think air could be getting into this system.

John@Reliable_2

Air bound?

How about coin vents? Maybe have a bad one some where upstairs. Cir. pump gaskets could also cause. When you purge basement do you also purge the other zones? Hope this helps John@Reliable

jg2700

air

what kind of boiler is it add a air vent to the built in scoop of the boiler if one is available.second put a air scoop on the supply of the boiler.

Steamhead

And

Pump Away from the air separator and expansion tank connection. This will flush air back to the separator, and you'll never have this problem again!

To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"

Howard

Tank Diaphragm Ruptured?

Howard Hansen Service Technician Extraordinaire

Big Ed_2

Air Problem

Your first mention was the basement zone is above the slab . How about the other zones ? Do any of them take a below slab turn ?

Next question .Where , what position and what type compression tank is being used on the job ?

Bill @ Boro

Air problems

Had the same problem in my own house, ended up that one of the purge valves had a bad washer, even though no signs of water leak ect., it just sucked in air, strange but true, changed all three purge valves, problem solved.

[Deleted User]

Somethings changed...

any chance you have a leak below the floor in the basement zone?

Feel the point in the systenm where the make up connection ties into the main piping and see if it feels cold. Or, if you have a low water cutoff, turn the make up off and see where the pressure goes. If it goes to ZERO, you've got a leak below the floor that is causing fresh, oxygenated water to come in and bind up the system.

Everyone else also had good questions too. Answer them and we'll find an answer for you.

ME