Engine: Refrigeration AC

1. A it will always completely close regardless of whether or not the system employs a pump down cycle
2. B it will always open wide regardless of whether or not the system employs a pump down cycle
3. C it will always remain in the same position just prior to the cycling off of the compressor
4. D it will continue to function as a result of the net balance of forces acting on the diaphragm

Tip: press A-D to answer