Author Question: An air conditioning performance check requires a ________. (Read 59 times)

colton · **on:** Aug 13, 2021

Question 1

An AC system has had about 0.5 lbs of R-22 refrigerant added. What would this cause?
◦ No problems, normal AC cooling
◦ Increased cooling
◦ Low high side pressures
◦ Very high high side pressures

Question 2

An air conditioning performance check requires a ________.
◦ Thermometer and a hydrometer
◦ Thermometer and a vacuum pump
◦ Thermometer and a manifold gauge set
◦ Manifold gauge set and a volt-ohmmeter