TM 5-3805-290-23-1
THEORY OF OPERATION - CONTINUED
0003 00
AIR CONDITIONING SYSTEM - CONTINUED
N OT E
In an orifice tube system that is properly charged, frost may form between the orifice tube and the compres-
sor. The frost may be present if the system is operating properly and if the system is properly charged.
In an orifice tube system, a combination of abnormal pressure and frost may indicate blockage in the system.
427-B2082
0003 00-193