Air problem

bigfolkes

We inherited what may be an on going problem. We have a oil boiler with two Taco 007 with IFC on supply and keep getting air in system every couple of days now.The system is an older house with radiators and starts with a 3inch main that splits to 3-2 inch mains. We replaced a 007 circulator and have been getting air in system every couple of days. Before we changed circulator they where getting air in system. We bleed radiators and heat works for 2-3 days. Is 007 the correct circulator? or do we need some sort of air elimination on supply? We were thinking a spiral vent on the supply on the suction side of the circs. The owners are new to the house and I saw a tag that said another company replaced a circ. and had air problems.Give some feedback. Thanks  

Charlie from wmass

yes you need a separator

make sure it is far enough away from the inlet and the 90 on the boiler supply riser.

Paul48

That Fast

You might want to ask yourself, where's the water going? Is the supply to the auto-fill turned off, and your blowing white clouds out the chimney?

bigfolkes

bigfolkes

Do you think the 007 circ is a problem,size wise?