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4-46.
TM 5-4120-377-14
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Compressor circuit breaker (CB1). (See para 4-51.)
Fuses (F1, F2, and F3). (See para 4-52.)
Rectifier (CR1). (See para 4-53.)
Time delay relay (K3). (See para 4-54.)
Compressor start relay (K1). (See para 4-55.)
Heater relay (K2). (See para 4-56.)
Fan motor relay (K4). (See para 4-57.)
Terminal boards (TB1 and TB2). (See para 4-58.)
Junction box housing, panel, and cover. (See para 4-59.)
Disconnect input power to air conditioner before performing any internal maintenance.
Voltages used can KILL. Shutting unit off at control panel does not disconnect unit power.
a. Removal
(1) Turn power off at power source.
(2) Disconnect power cable at air conditioner.
(3) Using screwdriver, loosen two captive panel fastener screws in lower front panel.
Figure 4-52. Lower Front Panel
(4) Tilt top of lower front panel out and lift panel up to remove.
4-91
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