Carrier 48/50AJ specifications Appendix B CCN Tables, 148

APPENDIX B — CCN TABLES

All A Series units with ComfortLink™ controls have a port for interface with the Carrier Comfort Network® (CCN) system. On TB3 there is a J11 jack which can be used for temporary connection to the CCN network or to computers equipped with CCN software like the Service Tool. Also on TB3 there are screw connections that can be used for more permanent CCN connections.

In the following tables the structure of the tables which are used with the Service Tool as well as the names and data that are included in each table are shown. As a reference the equiv- alent scrolling marquee tables and names are included. There are several CCN variables that are not displayed through the scrolling marquee and are used for more extensive diagnostics and system evaluations.

STATUS DISPLAY TABLES

TABLE	DISPLAY NAME	RANGE	UNITS	POINT NAME	WRITE STATUS
COOLING	HVAC Mode…………..:	ascii text strings
	Control Mode………..:	ascii text strings
	Current Running Capacity		%	CAPTOTAL
	Cooling Control Point		dF	COOLCPNT
	Evaporator Discharge Tmp		dF	EDT
	Mixed Air Temperature		dF	MAT
COOL_A	Compressor A1 Relay			CMPA1
	Compressor A1 Feedback			CSB_A1
	Compressor A1 Timeguard			CMPA1_TG
	Compressor A2 Relay			CMPA2
	Compressor A2 Feedback			CSB_A2
	Compressor A2 Timeguard			CMPA2_TG
	Minimum Load Valve			MLV
	Cir A Discharge Pressure		PSIG	DP_A
	Cir A Suction Pressure		PSIG	SP_A
	Cir A Sat.Condensing Tmp		dF	SCTA
	Cir A Sat.Suction Temp.		dF	SSTA
COOL_B	Compressor B1 Relay			CMPB1
	Compressor B1 Feedback			CSB_B1
	Compressor B1 Timeguard			CMPB1_TG
	Compressor B2 Relay			CMPB2
	Compressor B2 Feedback			CSB_B2
	Compressor B2 Timeguard			CMPB2_TG
	Cir B Discharge Pressure		PSIG	DP_B
	Cir B Suction Pressure		PSIG	SP_B
	Cir B Sat.Condensing Tmp		dF	SCTB
	Cir B Sat.Suction Temp.		dF	SSTB
ECONDIAG	Economizer Active ?	Yes/No		ECACTIVE
	Conditions which prevent
	economizer being active:
	Econ Act. Unavailable?	Yes/No		ECONUNAV
	Remote Econ. Disabled ?	Yes/No		ECONDISA
	DBC - OAT lockout?	Yes/No		DBC_STAT
	DEW - OA Dewpt. lockout?	Yes/No		DEW_STAT
	DDBC- OAT > RAT lockout?	Yes/No		DDBCSTAT
	OAEC- OA Enth Lockout?	Yes/No		OAECSTAT
	DEC - Diff.Enth.Lockout?	Yes/No		DEC_STAT
	EDT Sensor Bad ?	Yes/No		EDT_STAT
	OAT Sensor Bad ?	Yes/No		OAT_STAT
	Economizer forced ?	Yes/No		ECONFORC
	Supply Fan not on 30s ?	Yes/No		SFONSTAT
	Cool Mode not in effect?	Yes/No		COOL_OFF
	OAQ lockout in effect ?	Yes/No		OAQLOCKD
	Econ recovery hold off?	Yes/No		ECONHELD
ECONOMZR	Economizer Act.Curr.Pos.		%	ECONOPOS
	Economizer Act.Cmd.Pos.		%	ECONOCMD	forcible
	Economizer Active ?			ECACTIVE
	Economizer Control Point		dF	ECONCPNT
	Outside Air Temperature		dF	OAT	forcible
	Evaporator Discharge Tmp		dF	EDT
	Controlling Return Temp		dF	RETURN_T	forcible

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