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TK 61650-18-OP-EN
Electrical System
The unit’s controls and refrigeration components operate on 12 Vdc.
Electric Standby units have a standby motor that operates on 115 or 230 Vac
when connected to a remote power source. A transformer in the condenser
unit converts the 115 or 230 Vac to 12 Vdc to operate the unit’s controls and
refrigeration components.
Fuses
The electrical components are protected by various fuses.
MMaaiinn PPoowweerr FFuussee - The main power fuse is located in the vehicle’s engine
compartment and is connected directly to the vehicle’s battery.
This 60 amp in-line fuse is non-serviceable and must only be replaced by an
authorized Thermo King Dealer.
IIggnniittiioonn PPoowweerr FFuussee - The ignition power fuse is connected to the vehicle’s
fused ignition system. Depending on the vehicle, the location of the fuse
panel could be located inside the cab or under the hood of the vehicle.
UUnniitt CCoommppoonneenntt FFuusseess - These fuses are located in the condenser unit.
Remove the condenser cover to access them. Depending on your model,
some fuses may not be used. Refer to ()Refer to (“Electrical Control
System,” p. 41).
Figure 11. Fuse Location (condenser cover removed)
UUnniitt DDeessccrriippttiioonn
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