What types of system access valves do residential air-conditioning systems usually have?
A) Manual valves on the compressor suction and discharge and on the liquid receiver
B) Schrader valves on the compressor suction and discharge and on the liquid receiver
C) Schrader valves on the suction line and liquid line
D) A process stub on the compressor
Question 2
What types of system access valves do commercial refrigeration systems usually have?
A) Manual valves on the compressor suction and discharge and on the liquid receiver
B) Schrader valves on the compressor suction and discharge and on the liquid receiver
C) Schrader valves on the suction line and liquid line
D) A process stub on the compressor