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b. Circuit Breaker. Refer to figure 4-18 and
remove handle shaft and spacers. Remove screws
and washers that secure circuit breaker to
mounting plate and designation plate and remove
circuit breaker. Single phase breakers are attached
with four screws and washers and three phase
breakers are attached with six screws and washers.
c. Evaporator Fan Toggle Switch. Refer to figure
4-18 and remove the switch nut and lock washer.
Remove toggle switch.
d. Temperature Selector Switch. Refer to figure
4-18 and remove nut and capillary tube clamp.
Remove four screws, nuts, and washers. Remove
switch knob and temperature selector switch.
e. Mode Selector Rotary Switch. Refer to figure
4-18, loosen setscrew in knob, and remove knob.
Remove switch nut and switch.
4-47. Assembly
a. General. Refer to figure 4-18 and install any
components that were removed. Complete the
assembly as described in f below.
b. Circuit Breaker. Install circuit breaker, screws
and washers. Assemble handle spacers and shaft.
c. Evaporator Four Toggle Switch. Install toggle
switch and secure to mounting plate with switch
nut and lock washer.
d. Temperature Selector Switch. Install switch
and secure with four screws, washers and nuts.
Install switch knob. Install clamp on capillary tube
and secure clamp with nut.
e. Mode Selector Rotary Switch. Install switch
and secure with switch nut. Install knob and
tighten setscrew.
f. Control Module. After components have been
installed, make all necessary electrical connections.
Insert a capillary tube bulb through opening in
cover. Install cover and mounting screws. Install
capillary tube grommet.
4-48. Installation
a. Install temperature selector switch bulb and
tube through slot in junction box. Install bulb in
clamps (fig. 4-17) and tighten screws.
b. Install control module into junction box and
turn connector knob clockwise until screw is tight.
c. Refer to paragraph 4-18 and install evaporator
air inlet louver.
Section XV. JUNCTION BOX
4-49. General
The junction box (fig. 1-1) contains the time relay
delay, control circuit breaker, condenser fan relay,
heater relay, and compressor motor relay. Three
phase junction boxes also contain the phase
sequence relay.
4-50. Removal
a. Refer to paragraph 4-21 and remove front top
cover. Refer to paragraph 4-44 and remove control
module.
b. Remove seven screws and lock washers
securing junction box to housing. Partially remove
the junction box by pulling the box forward and out
of the air conditioner. See figure 4-19. Support the
junction box to relieve strain on wiring.
c. To completely remove the junction box it is
necessary to disconnect all the electrical leads and
connectors.
4-29
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