Heat in Front but Not in Back of Building

Rodney Summers

New Boiler put in last year - system worked last year. This year turned it on, and front of building gets heat, back does not. 5 story brownstone built in 1890 with steam system, since converted to hot water. Seems to be two pipe system.

Seem to be three zones, or main lines cutting off from the main output line of the boiler. All valves seem to be open. Is this just air in one of the zones.

Any other ideas.

Thanks

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david

DAW

No heat in the back

I am working on an air problem in a commecilal setting. I will say yes you have air in your system. You need to get the air out by bleading the system throuhg the bleading vales if install in system. The system is air bound, try bleading system where their is no heat emedly after the last section where their is heat, Or start where it is little heat and go down the line. could take some time to get all the air out. As the air is releast you should get some hear, might hear the watermaking a bubbling sound as the air is relised.
The air could move down the line in the pipe.
Dan could answer this better