PRESSURE TAPS: Filter driers can be purchased with Schrader valves (pressure taps) on their inlets and outlets (left), or just on the inlet (right). A pressure drop of more than 2 psi measured with ...

Filter driers are designed to remove foreign materials from refrigeration or air conditioning systems. They are notorious for becoming restricted due to moisture, sludge, dirt, or oil that has entered ...

There are several HVAC issues that you can fix yourself. If your system isn’t working as expected, your first order of business should be checking your air filter and replacing it if necessary. If you ...