Hello, your location of the air separator and pump is correct, you would want your air separator before the pump or on the suction side of the pump. The fill and expansion tank can be installed below the air separator on a smaller system or on a larger system we see them installed on the return side. The photo above shows the air separator on the supply side and the pump on the return pumping throught the boiler. The boiler provides the pressure drop which will place the air separator on the low pressure side with the pump after it pulling through the separator.
Hello, your location of the air separator and pump is correct, you would want your air separator before the pump or on the suction side of the pump. The fill and expansion tank can be installed below the air separator on a smaller system or on a larger system we see them installed on the return side. The photo above shows the air separator on the supply side and the pump on the return pumping throught the boiler. The boiler provides the pressure drop which will place the air separator on the low pressure side with the pump after it pulling through the separator.