Install the Spirovent® at the point of lowest solubility, which is the place in the system where the temperature is the highest and pressure the lowest. Note as well to always "pump away" from the expansion tank, never towards it.

Related Work

International ALERT Academy, Big Sandy, TX

“I have not had to vent a coil in the three months since

Potawatomie Bingo Casino - Milwaukee, WI
Two custom fabricated 20" high velocity air eliminators.
University of Nebraska - Lincoln, NE
With close to one hundred Spirovents installed, The University of Nebraska at Lincoln is one of our largest higher-ed customers.
University of Delaware - Newark, DE
Following an on-site system review, the first two Spirovents were installed in an equipment room serving two residence halls with recurring problems.