TM 9-4120-399-14
5-26. PRESSURE SWITCHES (S5 AND S6).
This Task Covers:
c. Installation
b. Removal
a. Test
Initial Setup:
Tools Required
Tool kit, Refrigeration
Material's Required
None
Equipment Condition
Air conditioner shut down and cool.
Pressure switch cover removed (See para. 3-4).
Refrigeration system discharged (See para. 5-7).
a. Test.
(1) Press and release reset button to be sure that switch is not tripped.
(2) Tag and disconnect leads on pressure switch.
(3) Using multimeter set on lowest OHMS scale, check for continuity between terminals
1 and 2 on each pressure switch. Be sure reset is pressed in.
(4) If there is no continuity, replace pressure switch.
