Carrier 48/50AJ specifications 127, Cid, Hvac

To connect the unit to the network:

1.Turn off power to the control box.

2.Cut the CCN wire and strip the ends of the red (+), white (ground), and black (–) conductors. (Substitute appropri- ate colors for different colored cables.)

3.Connect the red wire to (+) terminal on TB3 of the plug, the white wire to COM terminal, and the black wire to the

(–) terminal.

4.The RJ14 CCN connector on TB3 can also be used, but is only intended for temporary connection (for example, a laptop computer running Service Tool).

CCN BUS

5. Restore power to unit.

IMPORTANT: A shorted CCN bus cable will prevent some routines from running and may prevent the unit from starting. If abnormal conditions occur, unplug the connector. If conditions return to normal, check the CCN connector and cable. Run new cable if necessary. A short in one section of the bus can cause problems with all system elements on the bus.

		ROOFTOP			ROOFTOP
		UNIT			UNIT
		CL		CL
	COMPUTERWITHWITH
	ComfortView™ComfortVIEW™
	SOFTWARE
	CCN WEB
	OR
	NETWORK	ROOFTOP			ROOFTOP
	OPTIONS	UNIT			UNIT
		CL		CL
			HEATING/COOLING UNITS
REMOTE	TELINK
CCN SITE
		BRIDGE
		(RECOM-
		MENDED)
		CL	CID	CID	CID
		ROOFTOP	COMFORT	COMFORT
			ID AIR	ID AIR
		UNIT
			TERMINAL	TERMINAL
NON CARRIER
HVAC
EQUIPMENT
	COMFORT	AIR DISTRIBUTION-DIGITAL AIR VOLUME CONTROL (DAV)
	CONTROLLER
	LEGEND

CCN	— Carrier Comfort Network®
CID	— ComfortID™ Controls
CL	— ComfortLink™ Controls
HVAC	— Heating, Ventilation, and Air Conditioning

Fig. 35 — CCN System Architecture

TO

ADDITIONAL

TERMINALS

COMFORT ID

FAN

POWERED

MIXING

BOX

A48-7307

127