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Carrier 48/50AJ specifications Cooling Information Display Table, Mode Trip Helper Display Table

Models: 48/50AJ

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Table 107 — Cooling Information Display Table

ITEM	EXPANSION	RANGE	UNITS		POINT	WRITE STATUS
COOL	COOLING INFORMATION
C.CAP	Current Running Capacity		%		CAPTOTAL
C.CAP	Current Running Capacity		%		CAPTOTAL
CUR.S	Current Cool Stage				COOL_STG
REQ.S	Requested Cool Stage				CL_STAGE
MAX.S	Maximum Cool Stages				CLMAXSTG
DEM.L	Active Demand Limit		%		DEM_LIM	forcible
SUMZ	COOL CAP. STAGE CONTROL	–100 → +100
SMZ	Capacity Load Factor	–100 → +100			SMZ
ADD.R	Next Stage EDT Decrease		^F		ADDRISE
SUB.R	Next Stage EDT Increase		^F		SUBRISE
R.PCT	Rise Per Percent Capacity				RISE_PCT
Y.MIN	Cap Deadband Subtracting				Y_MINUS
Y.PLU	Cap Deadband Adding				Y_PLUS
Z.MIN	Cap Threshold Subtracting				Z_MINUS
Z.PLU	Cap Threshold Adding				Z_PLUS
H.TMP	High Temp Cap Override				HI_TEMP
L.TMP	Low Temp Cap Override				LOW_TEMP
PULL	Pull Down Cap Override				PULLDOWN
SLOW	Slow Change Cap Override				SLO_CHNG

Table 108 — Mode Trip Helper Display Table

ITEM	EXPANSION	RANGE	UNITS	POINT	WRITE STATUS
TRIP	MODE TRIP HELPER
UN.C.S	Unoccup. Cool Mode Start			UCCLSTRT
UN.C.S	Unoccup. Cool Mode Start			UCCLSTRT
UN.C.E	Unoccup. Cool Mode End			UCCL_END
OC.C.S	Occupied Cool Mode Start			OCCLSTRT
OC.C.E	Occupied Cool Mode End			OCCL_END
TEMP	Ctl.Temp RAT,SPT or Zone			CTRLTEMP
OC.H.E	Occupied Heat Mode End			OCHT_END
OC.H.S	Occupied Heat Mode Start			OCHTSTRT
UN.H.E	Unoccup. Heat Mode End			UCHT_END
UN.H.S	Unoccup. Heat Mode Start			UCHTSTRT
HVAC	ascii string spelling out the hvac modes			string

Table 109 — CCN/Linkage Display Table

ITEM	EXPANSION		RANGE	UNITS	POINT	WRITE STATUS
LINK	CCN - LINKAGE
MODE	Linkage Active - CCN		ON/OFF		MODELINK
MODE	Linkage Active - CCN		ON/OFF		MODELINK
L.Z.T	Linkage Zone Control Tmp			dF	LZT
L.C.SP	Linkage Curr. Cool Setpt			dF	LCSP
L.H.SP	Linkage Curr. Heat Setpt			dF	LHSP

Table 110 — Compressor Run Hours Display Table

ITEM	EXPANSION		RANGE		UNITS		POINT		WRITE STATUS
HRS	COMPRESSOR RUN HOURS
HR.A1	Compressor A1 Run Hours		0-999999		HRS		HR_A1		config
HR.A1	Compressor A1 Run Hours		0-999999		HRS		HR_A1		config
HR.A2	Compressor A2 Run Hours		0-999999		HRS		HR_A2		config
HR.B1	Compressor B1 Run Hours		0-999999		HRS		HR_B1		config
HR.B2	Compressor B2 Run Hours		0-999999		HRS		HR_B2		config

Table 111 — Compressor Starts Display Table

ITEM	EXPANSION		RANGE	UNITS	POINT		WRITE STATUS
STRT	COMPRESSOR STARTS
ST.A1	Compressor A1 Starts		0-999999		CY_A1		config
ST.A1	Compressor A1 Starts		0-999999		CY_A1		config
ST.A2	Compressor A2 Starts		0-999999		CY_A2		config
ST.B1	Compressor B1 Starts		0-999999		CY_B1		config
ST.B2	Compressor B2 Starts		0-999999		CY_B2		config

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Carrier 48/50AJ specifications Cooling Information Display Table, Mode Trip Helper Display Table, CCN/Linkage Display Table

Contents

Multi-StageConstant Volume Units with CONTENTSTwo-StageConstant Volume Units with CONTENTS cont SAFETY CONSIDERATIONSAPPENDIX A — LOCAL DISPLAY TABLES . . . . APPENDIX D - MODE SELECTIONTable 1 — A Series Product Line GENERALBASIC CONTROL USAGE Fig. 2 — Accessory Navigator Display Fig. 1 — Scrolling MarqueeFig. 3 — System Pilot User Interface ComfortLink Display Modes START-UP AIRFLOW Table 6 — Fan Performance — 48AJ,AK036 Units Table 8 — Fan Performance — 48AJ,AK041 Units Table 10 — Fan Performance — 48AJ,AK051 Units AIRFLOW AIRFLOW Table 15 — Fan Performance — 50AJ,AK036 Units Table 17 — Fan Performance — 50AJ,AK041 Units Table 19 — Fan Performance — 50AJ,AK051 Units AIRFLOW CFM 4,000 5,000 6,000 7,000 7,500 8,000 Table 24 — Fan Performance — 48AW,AY036 Units Table 26 - Fan Performance - 48AW,AY041 Units Table 28 — Fan Performance — 48AW,AY051 Units 4.81 0.62 Table 33 — Fan Performance — 50AW,AY036 Units Table 35 — Fan Performance — 50AW,AY041 Units Table 37 - Fan Performance - 50AW,AY051 Units Table 39 — Motor Limitations CONTROLS QUICK START figure the unit, perform the following SERVICE TEST Indoor Air Quality IAQ OptionsFans in Service Test Mode — Upon entering the THIRD PARTY CONTROL Demand Controlled Ventilation Control —CONTROLS OPERATION Table 42 — Operating Modes Display Table SYSTEM MODES Operating Modes→SYS.MFig. 4 — Mode Selection FireSystem SmokeC.TYP = 1 VAV-RATand C.TYP = 2 VAV-SPT Table 43 — Unit Configuration •MAT.S =•MAT.S = MAT.S =under Configuration→UNIT Table 44 - Machine Dependent Configurations Table 46 — Supply Air Reset Configuration→SA.S.R Table 45 — SetpointsTable 47 — Cooling Configuration Fig. 5 — Advanced Scroll Temperature Protection LabelFig. 6 — Recommended Minimum Cool-Down Time After Compressor is StoppedFig. 8 — Cool Mode Evaluation •Lo Cool Mode mechanical stages = Table 49 — 2-StageSequence — 48/50AJ,AW020-027 Table 50 — 2-StageSequence — 48/50AJ,AW030-060Table 55 — 2-StageSequence — 48/50A2,A4020-027 Table 56 — 2-StageSequence — 48/50A2,A4030-060STAGE Z.MIN = Configuration→COOL→Z.GN * –10+ Z.PLU = Configuration→COOL→Z.GN * 10 +Table 61 - Run Status Mode Trip Helper R.PCT = MAT – EDT/ C.CAPTable 62 — Run Status Cool Display Inputs→GEN.I→DL.S1 Inputs→GEN.I→DL.S2 •MAT.S =•MAT.S = •MAT.S =Table 63 - Demand Limit Configuration •Configuration→COOL→M.M. – Motor Master Control?Table 64 — Condenser Fan Staging EC.C.P = Setpoints→SA.LO + Inputs→RSET→SA.S.RTable 65 — Heating Configuration Fig. 9 — Heating Offsets Table 66 — Heat/Cool Set Point OffsetsError = HT.C.P – LAT Table 67 — Mode Trip Helper TableTable 68 — Staged Gas Configuration Table 69A — Staged Gas Heat — 48AJ,AK,AW,AY UnitsTable 69B — Staged Gas Heat — 48A2,A3,A4,A5 Units Table 74 — IGC LED Indicators •For all other cases, the trip point is T.V.UN Table 75 — Static Pressure Control Configuration Fan Status Monitoring Table 78 - Dirty Filter Switch Points Table 76 — Static Pressure Reset Related PointsTable 77 - Fan Status Monitoring Configuration Fig. 10 — Psychrometric Chart for Inputs→GEN.I→E.SWE.SEL = Enthalpy ControlTable 79 — Economizer Configuration Table Fig. 11 — Custom Changeover Curve ExampleC.TYP = C.TYP =C.TYP = C.TYP =Table 80 — Economizer Run Status Table Table 81 — Building Pressure Configuration Table 82 — Power Exhaust Staging BP.CF =Table 83 — Power Exhaust Staging BP.CF = RELEVANT ITEMS Point Configuration→IAQ→AQ.SP→D.F.ON. The fan Point Configuration→IAQ→AQ.SP→D.F.OF. The conFig. 12 — IAQ Control Fig. 13 — IAQ Response CurveIAQ Purge Configuration → IAQ → IAQ.P → IQ.PG— Table 84 - Indoor Air Quality Configuration Table 85 — Dehumidification ConfigurationTemperature Compensated Start — This logic is Carrier Comfort Network CCN System - ItTable 86 — CCN Configuration Table 87 — Alert Limit Configuration Table 88 - Sensor Trim ConfigurationDiscrete Switch Logic Configuration — The SW.LG TIME CLOCK CONFIGURATION Table 92 — Remote Switch Logic Configuration TROUBLESHOOTING Table 94 — Cooling Service Analysis Table 94 — Cooling Service Analysis cont Table 95 — Gas Heating Service Analysis Table 96 — Electric Heat Service AnalysisFig. 14 — IGC Service Analysis Logic A48-5656TEMP TEMP TEMP 48/50AJ,AK,AW,AY Units Only 48/50AJ,AK,AW,AY Units Only PRESSURE 48/50A2,A3,A4,A5 Units Only 48/50A2,A3,A4,A5 Units Only cont Y.PLU = –ADD.R*0.4375 R.PCT = MAT - EDT/C.CAPY.MIN = -SUB.R*0.4375 Table 105 — Auto View of Run Status Display Table Table 106 - Economizer Run Status Display TableZ.MIN = Configuration→COOL→Z.GN * –10+ Z.PLU = Configuration→COOL→Z.GN * 10 +Table 107 — Cooling Information Display Table Table 108 — Mode Trip Helper Display TableTable 109 — CCN/Linkage Display Table Table 110 — Compressor Run Hours Display TableTable 112 — Time Guard Display Table Table 114 — Alert and Alarm Codes Table 114 — Alert and Alarm Codes cont A051 Circuit A, Compressor 1 Stuck On Failure T092 Circuit A Suction Pressure Transducer Failure Demand Limit Select Configuration→DMD.L→DM.L.S T303 Supply Temperature Above Limit— If the supply at Configuration→UNIT→SENS→FLT.S Factory-InstalledComponents MAJOR SYSTEM COMPONENTSRED JUMPER WIRE MUST BE ADDED ~ ~ ~ ~ ~ ~~TO NEXT PAGE a48-8355a48-8355 a48-8355 ~ ~ ~ ~ ~ ~ ~~ ~ ~ ~~A48-7294 ~ TO NEXT ~PAGE~~~~ a48-8356a48--8357 TO NEXT PAGE A48-7296A48-8358 a50-8228 A48-7298 TO NEXT PAGEFROM PREVIOUS PAGE a48-8360Page SW1 SW2 OR DEHUMIDIFY SWITCH a48-8361a48-8362 A48-7302 LEGEND AND NOTES FOR FIG. LEGENDFig. 26 — Main Base Board MBB A48-7811POINT Fig. 28 — Staged Gas Heat Control Board SCB A48-7707Fig. 29 — Controls Expansion Board CEM CEPL130351CEBD430351 TESTFig. 30 — Scrolling Marquee Table 119 — Controls Expansion Board CEM InputsTable 120 — IGC Board Inputs and Outputs Fig. 31 — VFD Wiring Table 121 — VFD Terminal DesignationsW2 G TB5 TB6Table 122 — Field Connection Terminal Strips Fig. 34 — Accessory Navigator Display Fig. 35 — CCN System Architecture SERVICE Fig. 37 - Spark Gap AdjustmentFig. 36 — Door Latch Fig. 38 — Typical Gas Heating SectionFig. 39 — Gas Heat Section Details Fig. 40 — Evaporator-FanAlignment and Adjustment LubricationEvaporator Fan Service and Replacement Belt Tension Adjustment — To adjust belt tensionEvaporator-FanMotor Replacement Fig. 42 — Belt Tension AdjustmentCondenser-FanAdjustment Gas Valve AdjustmentFig. 43 — Condenser-FanAdjustment Table 123 - Round Tube, Plate Fin Unit Chargea48-8401 25 and 27 Ton MCHX CIRCUIT B Charging Chart a48-840225 and 27 Ton MCHX CIRCUIT A Charging Chart 30 Ton MCHX CIRCUIT A Charging Chart 30 Ton MCHX CIRCUIT B Charging Chart35 Ton MCHX CIRCUIT A Charging Chart 35 Ton MCHX CIRCUIT B Charging Chart40 Ton MCHX Charging Chart 50 Ton MCHX Charging Chart60 Ton MCHX CIRCUIT A Charging Chart 60 Ton MCHX CIRCUIT B Charging ChartFig. 51 — Gas Valve Part Number EF33CW271 Fig. 52 — Main Burner RemovalAPPENDIX A — LOCAL DISPLAY TABLES MODE — RUN STATUSAPPENDIX A - LOCAL DISPLAY TABLES cont MODE — SERVICE TESTMODE — TEMPERATURES MODE — RUN STATUS contAPPENDIX A — LOCAL DISPLAY TABLES cont MODE — PRESSURESMODE — SET POINTS MODE — INPUTSMODE — CONFIGURATION APPENDIX A — LOCAL DISPLAY TABLES contMODE — INPUTS cont MODE — OUTPUTSMODE - CONFIGURATION cont DEFAULTAPPENDIX A — LOCAL DISPLAY TABLES cont ITEMAPPENDIX A — LOCAL DISPLAY TABLES cont →BP.CFAPPENDIX A — LOCAL DISPLAY TABLES cont →CCNAMODE — ALARMS APPENDIX A — LOCAL DISPLAY TABLES contMODE — TIME CLOCK MODE - OPERATING MODESAPPENDIX B — CCN TABLES STATUS DISPLAY TABLESAPPENDIX B - CCN TABLES cont STATUS DISPLAY TABLES contTABLE APPENDIX B — CCN TABLES contSTATUS DISPLAY TABLES cont APPENDIX B — CCN TABLES cont CONFIG TABLESSET POINT TABLE APPENDIX B — CCN TABLES cont CONFIG TABLES contSERVICE-CONFIGTABLES SERVICE-CONFIGTABLES cont APPENDIX B — CCN TABLES contTABLE SERVICE-CONFIGTABLES contAPPENDIX B — CCN TABLES cont SERVICE-CONFIGTABLES cont DEFAULTAPPENDIX B — CCN TABLES cont TABLEMAINTENANCE DISPLAY TABLES APPENDIX B — CCN TABLES contMAINTENANCE DISPLAY TABLES cont APPENDIX B — CCN TABLES contDISPLAY NAME RANGETABLE MAINTENANCE DISPLAY TABLES contAPPENDIX B — CCN TABLES cont TABLE MAINTENANCE DISPLAY TABLES contAPPENDIX B — CCN TABLES cont APPENDIX B - CCN TABLES cont TIME SCHEDULE CONFIG TABLEMAINTENANCE DISPLAY TABLES cont Table A — VFD Terminal Designations Fig. A — VFD WiringAPPENDIX C - VFD INFORMATION Fig. B — VFD Keypad Table B — VFD ConfigurationsAPPENDIX C — VFD INFORMATION cont Fig. C — Standard Display Example APPENDIX C — VFD INFORMATION contTo set the clock, perform the following procedure APPENDIX C — VFD INFORMATION contAPPENDIX C — VFD INFORMATION cont the status LED on the control panelTable C — Fault Codes APPENDIX C - VFD INFORMATION contTable D — Alarm Codes Table E — Maintenance IntervalsCheck the heat sink as follows when necessary 1.Remove power from driveFig. D - Main Fan Replacement Frame Sizes R1-R4 Fig. E — Main Fan ReplacementFrame Sizes R5 and R6 APPENDIX C — VFD INFORMATION contA48-7716 Fig. F - Internal Enclosure Fan ReplacementAPPENDIX C — VFD INFORMATION cont Configuration→SP→SP.CF = 1,2 and the static APPENDIX D — MODE SELECTION PROCESSFig. B — UPC Open Controller Fig. A — Address Rotary SwitchesAPPENDIX E — UPC OPEN CONTROLLER Configuring the BAS Port for BACnet MS Table A — SW3 Protocol Switch Settings for MS/TPFig. C — DIP Switches Fig. D — Network WiringAPPENDIX E — UPC OPEN CONTROLLER cont Fig. E — BT485 Terminator InstallationTable C — MS/TP Wiring Recommendations Fig. F — BACview6 Device Connection APPENDIX E — UPC OPEN CONTROLLER contAPPENDIX E — UPC OPEN CONTROLLER cont Configuring the UPC Open Controllers PropTable E — LED Status Indicators NETWORK POINTS LIST APPENDIX E — UPC OPEN CONTROLLER contNETWORK POINTS LIST cont APPENDIX E — UPC OPEN CONTROLLER contReturn Air Relative Humidity APPENDIX E — UPC OPEN CONTROLLER contNETWORK POINTS LIST cont BACNET APPENDIX E — UPC OPEN CONTROLLER contNETWORK POINTS LIST cont BACNET APPENDIX E — UPC OPEN CONTROLLER contNETWORK POINTS LIST cont NETWORK POINTS LIST cont Local Machine DisableAPPENDIX E — UPC OPEN CONTROLLER cont BACNET APPENDIX E — UPC OPEN CONTROLLER contNETWORK POINTS LIST cont INDEX Internal wiringMulti-stageconstant volume units with Multi-stageconstant volume unitsCopyright 2010 Carrier Corporation Catalog No.Printed in U.S.A Form 48/50A-9TCONTROLS SET POINT AND CONFIGURATION LOG DEFAULTITEM EXPANSIONCL-2 CL-3 CL-4 DEFAULT CL-5ITEM EXPANSIONUNIT START-UPCHECKLIST PRE-START-UPTEMPERATURES START-UP