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TM5-4120-387-14
d.
Crimping terminals.
To install a terminal on the end of a wire, strip 1/4 -
1/2 inch (0,6 - 13 mm) of insulation from the end of the wire, apply a one-inch
piece of heat-shrink tubing (if the terminals are of the uninsulated type), and
insert wire end into the shank of the terminal.
Crimp the shank, and install
heat-shrink tubing, if necessary.
4-28. JUNCTION BOX
The junction box is a protective enclosure that contains the compressor circuit
breaker (CB), fuses (F1 and F2), time delay relays (K6 and K9), compressor start
relay (K1), heater relay (K2) and terminal boards (TB1 and TB2). The transformer
(T) and capacitor assembly (C3) are mounted outside of the junction box. See the
following paragraphs for maintenance of junction box components.
l
l
l
l
l
l
l
l
l
Junction box removal/installation.
(See para 4-29.)
Transformer (T).
(See para 4-30.)
Capacitor assembly (C3).
(See para 4-31.)
Compressor circuit breaker (CB). (See para 4-32.)
Fuses (F1 and F2).
(See para 4-33.)
Rectifier (CR).
(See para 4-34. )
Time delay relay (K6). (See para 4-35.)
Time delay relay (K9). (See para 4-36.)
Compressor start relay (K1). (See para 4-37.)
Heater relay (K2). (See para 4-38.)
Junction box wiring harnesses.
(See para 4-39.)
Terminal boards (TB1 and TB2).
(See para 4-40.)
Junction box housing and cover.
(See para. 4-41.)
4-29.
JUNCTIONBOXREMOVAL/lNSTALLATION
Voltages used can kill.
Always disconnect power cord to air
conditioner before performing any internal maintenance.
Shutting unit off at its control panel does not disconnect
unit power.
4-70
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