5407934-UIM-C-1119
Johnson Controls Ducted Systems 15
Control Wiring Using Communicating Controls: Non-Vari-
able Capacity Outdoor Models
1. Disconnect all high-voltage power from the system.
2. The outdoor unit contains a wire harness for conventional wiring and
a wire harness for communicating wiring. Locate the wire harness
with the plastic plug on the end. Cut the plastic connector off of the
wire harness to be used and strip the wires approximately 1/2 in.
3. Connect the field low-voltage thermostat wiring to the appropriate
harness using spring wire connectors.
4. Push excess wiring into the low-voltage wiring compartment of the
outdoor unit.
5. Set the appropriate outdoor jumper settings to ensure proper control
functionality. See Table 3.
Control Wiring Using Communicating Controls: Variable
Capacity Outdoor Models
1. Disconnect all high-voltage power from the system.
2. The outdoor unit contains a wire harness for communicating wiring. A
plastic connector used in manufacturing is left on the end of the con-
trol wires. Cut the plastic connector off of the wire harness and strip
the wires approximately 1/2 in.
3. Connect the field low-voltage thermostat wiring to the harness using
spring wire connectors. DO NOT connect the R connection of the
indoor equipment to the outdoor control board.
4. Push excess wiring into the low-voltage wiring compartment of the
outdoor unit.
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