![background image](http://html.mh-extra.com/html/carrier/weathermaker-48-50aj/weathermaker-48-50aj_operation-and-service-manual_2560300148.webp)
148
APPENDIX B — CCN TABLES
All A Series units with
Comfort
Link™ 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
Summary of Contents for WEATHERMAKER 48/50AJ
Page 103: ...103 Fig 15 Typical Main Control Box Wiring Schematic 48 50AJ AK AW AY Units cont a48 8355 ...
Page 104: ...104 Fig 16 Typical Main Control Box Wiring Schematic 48 50A2 A3 A4 A5 Units a48 8355 ...
Page 105: ...105 TO NEXT PAGE Fig 17 Typical Auxiliary Control Box Wiring Schematic A48 7294 ...
Page 106: ...106 Fig 17 Typical Auxiliary Control Box Wiring Schematic cont a48 8356 ...
Page 107: ...107 Fig 18 Typical 2 Stage Gas Heat Wiring Schematic Size 051 and 060 Units Shown a48 8357 ...
Page 113: ...113 Fig 22 Typical Power Schematic 48 50A2 A3 A4 A5060 Unit Shown ...
Page 114: ...114 SW1 SW2 OR DEHUMIDIFY SWITCH Fig 23 Typical Controls Option Wiring Schematic a48 8361 ...
Page 115: ...115 Fig 24 Typical Small Chassis Component Location Size 020 035 Units a48 8362 ...
Page 116: ...116 Fig 25 Typical Large Chassis Component Locations Size 036 060 Units A48 7302 ...
Page 169: ...169 APPENDIX C VFD INFORMATION cont Fig F Internal Enclosure Fan Replacement A48 7716 ...