Carrier Comfort Network Interface - Carrier 19XL series Installation Instructions Manual

Connect Wiring from Starter to Power Panel
Connect control wiring from main motor starter to the machine power panel. All control wiring
must use shielded cable. Also, connect the communications cable. Refer to the job wiring
diagrams for cable type and cable number. Make sure the control circuit is grounded in
accordance with applicable electrical codes and instructions on machine control wiring label.
Click here for Figure 28 — Oil Pump Wiring
Click here for Figure 29 — Oil Heater and Control Power Wiring

Carrier Comfort Network Interface

The Carrier Comfort Network (CCN) communication bus wiring is supplied and installed by
the electrical contractor. It consists of shielded, 3-conductor cable with drain wire.
The system elements are connected to the communication bus in a daisy chain
arrangement. The positive pin of each system element communication connector must be wired
to the positive pins of the system element on either side of it. The negative pins must be wired
to the negative pins. The signal ground pins must be wired to the signal ground pins. See
Figure 22 for location of the CCN network connector (COMM1) on the processor module.