Which of the statements about automatic expansion valves is false?
a) The control may be used with multiple cooling coils connected to the same compressor
b) When the compressor stops the valve automatically shuts off.
c) The spring force is countered by evaporator pressure acting upwards against the diaphragm which closes the valve.
d) A spring exerting a downward force on the diaphragm tends to open the valve.
e) The valve maintains constant pressure in the evaporator during compressor operation regardless of the load.
Answer: A
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Power Engineering
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