Question

When charging an R-410A system that uses a water-cooled condenser, you must first charge with vapor to a pressure of at least _______, before switching to liquid charging.

Answer 1

Answer:

35psig

Explanation:

Pressure is a force that acts on a surface area. The psig measure the pressure pounds per square inch gauge. It measure the difference in pressure between supply tank and outside air. This pressure is relative to atmospheric pressure. When charging an R-410A system, the vapor pressure should be at least 35 psig before switching to liquid charging.