Figure 3-16. Condcnser tan buffle, removal and installation.
3-41. High Temperature Cutout Switch
a. General. The high temperature cutout switch
is provided to shut down the electric heaters in
the event of interrupted evaporator airflow and
protects the heaters against high temperature.
(1) Remove cutout switch electrical leads
from heater terminals (fig. 3-15).
(2) Test the high temperature cutout switch
by checking continuity between terminals 4 and
5, 5 and 6, and 4 and 6 (fig. 14). Continuity
should exist in each check.
(1) Refer to figure 3-4 and remove the top
(2) Refer to figure 3-15 and remove the cut-
d. Installation. Installation is the reverse of re-
3-42. Condensate Drain Tubes
a. General Two condensate tubes are provided
to drain condensate from the evaporator conden-
sate drain pan (fig. 318). A ball and spring-type
check valve is provided at the outlet end of each
drain tube to prevent loss of evaporator air. The
check valves open
intermittently when the
weight of the condensate is sufficient to overcome
the force of the spring.