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APPENDIX B — CCN TABLES
All N Series units with ComtfortLink controls have a port
for interface with the Carrier Comfort Network
®
(CCN) sys-
tem. On TB3 there is a J11 jack which can be used for tempo-
rary 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. There are several CCN vari-
ables that are not displayed through the ComtfortLink Naviga-
tor™ display 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..............: 16-char ASCII
Control Mode...........: 16-char ASCII
Current Running Capacity % CAPTOTAL
Total Capacity Needed % COOLCALC
Current Cool Stage COOL_STG
Requested Cool Stage CL_STAGE
Maximum Cool Stage CLMAXSTG
Cooling Control Point degF COOLCPNT
Evaporator Discharge Tmp degF EDT
Mixed Air Temperature degF MAT
Next capacity step down % CAPNXTDN
Next capacity step up % CAPNXTUP
COOL_A
Current Cool Stage COOL_STG
Cir A Discharge Pressure PSIG DP_A
Cir A Suction Pressure PSIG SP_A
Cir A Liquid Pressure PSIG LP_A
Cir A Sat.Condensing Tmp degF SCTA
Cir A Sat.Suction Temp. degF SSTA
Cir A Sat. Liquid Temp. degF SLTA
Cir A Liquid Temperature degF LT_A
Cir A Subcooling Temp. deltaF SC_A
A1 Discharge Temperature degF DTA1 forcible
Suction Gas Temp Circ A degF RGTA forcible
Compressor A1 Relay Off/On CMPA1
Compressor A2 Relay Off/On CMPA2
Compressor A3 Relay Off/On CMPA3
Compressor A4 Relay Off/On CMPA4
Compressor A1 Feedback Off/On CSB_A1
Compressor A2 Feedback Off/On CSB_A2
Compressor A3 Feedback Off/On CSB_A3
Compressor A4 Feedback Off/On CSB_A4
Circ A High Press.Switch Low/High CIRCAHPS forcible
Cir A EXV1 Suction Temp. degF CASTEXV1
Cir A EXV1 Superheat Tmp deltaF SH_A1
Circuit A EXV 1 Position % XV1APOSP
Cir A EXV2 Suction Temp. degF CASTEXV2
Cir A EXV2 Superheat Tmp deltaF SH_A2
Circuit A EXV 2 Position % XV2APOSP
COOL_B
Current Cool Stage COOL_STG
Cir B Discharge Pressure PSIG DP_B
Cir B Suction Pressure PSIG SP_B
Cir B Liquid Pressure PSIG LP_B
Cir B Sat.Condensing Tmp degF SCTB
Cir B Sat.Suction Temp. degF SSTB
Cir B Sat. Liquid Temp. degF SLTB
Cir B Liquid Temperature degF LT_B
Cir B Subcooling Temp. deltaF SC_B
Compressor B1 Relay Off/On CMPB1
Compressor B2 Relay Off/On CMPB2
Compressor B3 Relay Off/On CMPB3
Compressor B4 Relay Off/On CMPB4
Compressor B1 Feedback Off/On CSB_B1
Compressor B2 Feedback Off/On CSB_B2
Compressor B3 Feedback Off/On CSB_B3
Compressor B4 Feedback Off/On CSB_B4
Circ B High Press.Switch Low/High CIRCBHPS forcible
Cir B EXV1 Suction Temp. degF CBSTEXV1
Cir B EXV1 Superheat Tmp deltaF SH_B1
Circuit B EXV 1 Position % XV1BPOSP
Cir B EXV2 Suction Temp. degF CBSTEXV2
Cir B EXV2 Superheat Tmp deltaF SH_B2
Circuit B EXV 2 Position % XV2BPOSP
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