Carrier 48TC Instruction Manual download pdf (Page 29)

Communications Bus Wire Specifications: The CCN

Communication Bus wiring is field--supplied and

field--installed. It consists of shielded 3--conductor cable

with drain (ground) wire. The cable selected must be

identical to the CCN Communication Bus wire used for

the entire network.

See Table 6 for recommended cable.

Table 6 – Recommended Cables

MANUF ACTURER CABLE PART NO.

Alpha 2413 or 5463

American A22503

Belden 8772

Columbia 02525

NOTE: Conductors and drain wire must be at least 20

AWG, stranded, and tinned copper. Individual conductors

must be insulated with PVC, PVC/nylon, vinyl, Teflon, or

polyethylene. An aluminum/polyester 100% foil shield and

an outer jacket of PVC, PVC/nylon, chrome vinyl, or Teflon

with a minimum operating temperature range of --20_Cto

60_C is required. Do not run communication wire in the

same conduit as or next to any AC voltage wiring.

The communication bus shields must be tied together at

each system element. If the communication bus is entirely

within one building, the resulting continuous shield must

be connected to ground at only one single point. If the

communication bus cable exits from one building and

enters another building, the shields must be connected to

the grounds at a lightning suppressor in each building (one

point only).

Connecting CCN bus:

NOTE: When connecting the communication bus cable,

a color code system for the entire network is

recommended to simplify installation and checkout. See

Table 7 for the recommended color code.

Table 7 – Color Code Recommendations

SIGNAL TYPE

CCN BUS WIRE

COLOR

CCN PLUG PIN

NUMBER

+ Red 1

Ground White 2

--- Black 3

Connect the CCN (+) lead (typically RED) to the unit’s

TB1--12 terminal. Connect the CCN (ground) lead

(typically WHT) to the unit’s TB1--14 terminal. Connect

the CCN (--) lead (typically BLK) to the unit’s TB1--16

terminal. See Fig. 54.

CCN Bus

J2-1

J2-2

GND (WHT)

TB1

J2-3

– (BLK)

TB1

+ (RED)

C08276

Fig. 54 -- PremierLink CCN Bus Connections

48TC

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Carrier 48TC Instruction Manual Page 29

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