542933-UIM-D-0513
40 Johnson Controls Unitary Products
2. Disconnect power to the entire system that you wish to access a communications port (commu-
nication ports are outlined in the wiring section of this document).
3. Once power is disconnected, plug the harness into one of the communicating. terminals. Rout-
ing the harness so that the power can be re-applied (allowing for the door switches etc. where
applicable)
The control housings contain areas of high voltage. Always assure, when trouble shooting the
system, that a safe distance is maintained from high voltage. Below are illustrations that show
some of the high voltage areas.
FIGURE 16:
Outdoor Unit Communicating Terminals
FIGURE 17: High Voltage Locations
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