The sight glass may be inspected by
looking through the louvers in the
left side panel. If you cannot see the
glass through the left side panel, then
remove the rear panel.
a. Remove fourteen (14) screws securing panel to housing and
remove rear panel.
b. With the air conditioner operating and providing cooling
air, inspect sight glass.
c. Yellow appearance indicates moisture in system and bubbles
or milky flow indicate low refrigerant charge.
d. Report presence of these conditions to Direct Support
e. Align holes in rear panel with holes in housing. Secure rear
panel with fourteen (14) screws.