Mechanical Refrigeration: Trouble

Trouble shooting technique; how to locate leaks; correct deficiencies in compressor; repair and recharge system; detect short cycling and liquid leakage. (SN 2246-d; 91 frames, synchronized disc, 18 minutes) Medical Certification of the Causes of Death U.S. Public Health Service, 1950. Proper certification of cause of death and uses of medical certification on death certificates