Carrier 50PD06 Installation Manual

IrnControls, Start-Up, Operation, Service andTroubleshooting Instructions®to the ExpertgTABLE OF CONTENTSPageSAFETY CONSIDERATIONS ...

Programming Operating SchedulesThe ComfortLink _ controls will accommodate up to eightdifferent schedules (Periods 1 through 8), and each schedule isa

APPENDIX D - ADDITIONAL START-UP DATAUNIT50PD0506Table 60 -- Air Quantity Limits (50PD Units)COOLING (cfm) HEATING (cfm)OPTIONAL ELECTRIC HEAT1200 200

ModelNumber:SerialNumber:Date:Technician:ControlType:SetPoints:CONTROL SET POINT AND CONFIGURATION LOGSoftware Versions:MBB: CESR131320--ECB: CESRI312

ITEMH EATHT.TYN.HTRMRT.HMOT.HH.DECH.INCFOD.EFOD.GHT.LOSATSAT. HSAM.LSAM.USPTHT, PDHZNDH.LAGECONEC.ENE.CTLMR25MR50MR75MRMXEC.MXM.ANGEH.LOEL.LODF.DBUEFC

ITEMAIR.QIA.CFIA.FNII.CFII.FNAQ.MNOVR.POA.CFOAQ.LAQD.LAQD.HDF.ONDF.OF1.4M1.20MO.4MO.20MH.4MH.20MALM.OA.SPCA.SRTA.OATA.CSA.CMPA.CKTA.SSPA.SCTA.FANA.FIL

ITEM(GENERIC = CCN only)TRIMSPT.CSPT.TSAT.CSAT.TRAT.CRAT.TCCNCCN.ACCN.BBAUDBRODB.TIMB.OATB.GSB.ACKSCH.OSCH.NHOL.GOV.TLOV. EXOV.SPLDSHS.GRPR.MXCS.MXCR.

UNIT START-UP CHECKLISTMODEL NO.: SERIAL NO:DATE: TECHNICIAN:I. PRE-START-UP:[] VERIFY THAT ALL PACKAGING MATERIALS HAVE BEEN REMOVED FROM UNIT[] VERI

Copyright 2009 Carrier Corp. * 73 i0 W. Morris St. * hldianapolis. IN 46231 Printed in U.S.A. Edition Date: 3/09Manufacturer reserves the right to cha

Cooling TestThe cooling (COOL) submenu is used to change output status fortesting the cooling function. The fans (FANS) and heating (HEAT)service test

Password Enable (PROT)This variable enables or disables the use of a password. Thepassword is used to restrict use of the control to changeconfigurati

RH Sensor On OAQ Input (RH.S)This configuration identifies if a space relative humidity sensor isinstalled on the outdoor air quality (OAQ) input. A Y

(Configuration--+CCN--+SCH.O--+OV.SP) is set to YES.The length of the override period is detemfined by theTimed Override Hours setting(Con figuration-

Outdoor Fan OperationThe 48/50 PD units use a multi-speed outdoor fan motor to controlthe head pressure within an acceptable range at low outdoorambie

a.(Configuration--,ECON--,UEFC = O) - DisabledWhen UEFC = 0, unoccupied free cooling is disabled.Cooling will only occur if the space exceeds theunocc

exceed Econ Min at Max Fan Speed(Configuration--_ECON--_MP_X) or IAQ Override Position(Configuration--,AIR.Q--,OVRdP) to provide econonfizercooling.IA

variableorUnoccupiedCoolSetPoint(Setpoints--->UCSP) plusthe Fan Speed Control Demand(Configuration--->COOL--->FS.CD) configuration variable t

Forall units with Economizers:1. 1.The outdoor temperature is below the Econo Cool HiTemp Limit (Configuration--_ECON--_EH_LO) and abovethe Econo Cool

Variable Frequency Drive (VFD) ... 53Integrated Gas Control (IGC) Board ... 54Low Voltage Terminal Strip (TBI) ...

Quality (IAQ) section of the Econonfizer Operation section abovefor more details on Demand Control Ventilation (DCV).Economizer Operation for Units Eq

beextendedby15seconds.Then_axinmmdelayis3 minutes.Once modified by the IGC, the fan off delay will not change backto the configured Fan-off Delay, Gas

willnotbeinterruptedtotheburnersandheatingwillcontinue.Oncemodified,thefanondelaywillnotchangebackto 45secondsunlesspowerisresettothecontrol.Whenthein

Temperature Compensated Start LogicThe following conditions nmst be met for the algorithm to run:• Unit is in unoccupied state.• Next occupied time is

Loadshed Group Number (S.GRP)This corresponds to the loadshed supervisory devices that resideelsewhere on the CCN network and broadcast loadshed and r

AUXIis notblinking,checktheDIPswitchpositionsontheboard,If theredLEDsarenotblinkinginunison,verifythatcorrectpowerisbeingsuppliedtoallmodules,A blinki

only the outdoor temperature to control the outdoor fans. If boththe SCT and OAT fail, then circuit shutdown alarm will occur also.The cause of the al

Recovery is automatic but MBB board replacement may benecessary. Cycling the power to the control should be tried beforeboard replacement.Alarm Code T

Initiate economizer calibration (Service Test--,INDP--, E.CAL)using the Service Test menu. The economizer calibrationprocedure will try to find new ma

Table8 -- ComfortLink T_,Alarm CodesALARMORALERTNUMBERT051T064T066T073T074T075T076T077T092T102Tl10T126T133T143T153A154T155A156A157DESCRIPTIONDigital C

GENERALThis publication contains Start-Up, Controls, Operation, Service,and Troubleshooting information for the 48/50PD rooftop units.(See Table 1.) T

Table8 -- ComfortLink T_Alarm Codes (cont)ALARMOR ACTION TAKEN BY RESETDESCRIPTION PROBABLE CAUSEALERT CONTROL METHODNUMBERT178 Loss of Communication

Table9-- CoolingService AnalysisPROBLEMCompressor and Fan Will Not StartCompressor Cycles (other thannormally satisfying demand).Compressor OperatesCo

measuredatemperatureabove268F(131C)orthethermistorhasshortcircuited(jumperedout).TheDSCwillde-energizethecompressorcontactorandunloadersolenoid,andthe

Economizer TroubleshootingUse the unit Scrolling Marquee display or a CCN device to viewthe economizer status display and the economizer diagnosticdis

Heating TroubleshootingUse the unit Scrolling Marquee display or a CCN device to viewthe heating status display and the heating diagnostic display (se

I FLASH - INDOOR FAN [_ELAY_O_FED (HEATING)2 _S - OF_-NN OF UMESW_rCH3 _ - _ SFJV_ORiNE_J_TES FLAME WffHCLOSED GAS VALVEHEATINGF-F-4 FL_..S - L_IT SWI

Table 13 -- IGC Board LED Alarm CodesLED ACTION TAKEN BYFLASH DESCRIPTION RESET METHOD PROBABLE CAUSECONTROLCODEOn Normal Operation __ __ __Off Hardwa

Thermistor TroubleshootingThe electronic control uses thermistors to sense temperatures usedto control operation of the unit. Resistances at various t

Sensor TrimCorrective offsets can be applied to the space temperature and thesupply air temperature sensor readings. These corrections are set inthe C

TEMP(F)-25-24-23-22-21-20-19-18-17-16-15-14-13-12-11-10-9-8-7-6-5-4-3-2-I0I23456789I011121314151617181920212223242526272829303132333435363738394041424

downarrowkeysto scroll through the top-level categories. Theseare listed in Appendix A and will be indicated on the ScrollingMarquee by the LED next t

Table 16 -- Temperature (°F) vs. Resistance/Voltage Drop Values for SCT Sensors (5K at 25°C Resistors)TEMP VOLTAGE RESISTANCE VOLTAGE RESISTANCE VOLTA

Table 17 -- Temperature vs Resistance Values for the DTT Thermistor(86K at 25 °C Resistors)Degree C Degree F Resistance (k Ohms)- 40 - 40 2889.60- 65

PRESSURE(psig)0246810121416182O2224262830323436384042444648505254565860626466Table 18 -- Pressure (psig) vs. Voltage Drop Values for Suction Pressure

R CJ2J1(ECB)T_AN2Fig. 12 - 48PD Control Wiring Schematic01J[ 48HG503976 I 4.0C0858243

BJ1019}_k<_ I_ _ r..._i:;_-, .Fi.L.; _ 2'"_,'?_ '_'_111... ÷ ..._-, I ...

1 POWER SCHEMATIC 48/50 PD C05,C06 208/230,460-3-60: NACR ] D SCON ECTI :> : COMFORTL NKC¥ -- ,= ...

D]:T AND UC LOCAIIONRATUNIT CONTROL BOXTRAN 1 TRAN 2AUXIi ...: _ _"i¸// Z{:7MPRESSOR [COCONTACTO ...-_ ECBCURRENTSENSORDSCFig. 15 - Typical

Main Base Board (MBB)See Fig. 16 and Table 19. The MBB is the center of theComfortLink control system. It contains the maior portion of theoperating s

Table19-- MBBConnectionsDISPLAY CONNECTIONNAME POINT DESCRIPTION SENSOR LOCATION TYPE OF I/O PIN NUMBERINPUTSInput power from TRAN1 control box 24 VAC

Economizer Control Board (ECB)The ECB controls the economizer actuator. (See Fig. 17 and Table20.) The control signal from the ECB uses either the MFT

/1NAVIGATE/_EXIT\\Gj--SCROLL _ PAGE\ D NFig. 3 - System Pilot _ User Interface--MODIFY/SELECT(06322Force HierarchyThere is a hierarchy in CCN with reg

Table 20 -- ECB ConnectionsDISPLAY POINT DESCRIPTION SENSOR TYPE OF I/O CONNECTIONNAME LOCATION PIN NUMBERINPUTSInput power from MBB control box 24 VA

Modulation Board (AUX1)The AUXI board controls the compressor capacity and the indoorfan speed (See Fig. 18 and Table 21.) It outputs a l-5vdc and a2-

Digital Scroll Control Board (DSC)The DSC board controls the compressor's capacity. (See Fig. 19and Table 22.) It receives a l-5vdc signal from t

Variable Frequency Drive (VFD)The VFD varies the frequency of the AC voltage supplied to theindoor fan. (See Fig. 20 and Table 23.) This causes the va

Integrated Gas Control (IGC) BoardThe IGC is provided on gas heat units. (See Fig. 21 and Table 24.)The IGC controls the direct spark ignition system

Low Voltage Terminal Strip(TB1)This circuit board provides a connection point between the majorcontrol boards and a majority of the field-installed ac

Scrolling Marquee DisplayThis device is the keypad interface used to access rooftopinformation, read sensor values, and test the unit. (See Fig. 23.)T

Space Temperature Sensor (T-58)The T-58 space temperature sensor (part no. 33ZCT58SPT) is afield-installed accessory. The T-58 sensor communicates wit

TBT B 1-T55] RED] BLKTO MAINBASE BOARD1I II I/SENSOR 1RED REDBLK BLKREDBLKSENSOR 27I0-SENSOR 3REDBLKLSENSORSPACETEMPERATURE AVERAGING --4 T-55 SENSOR

Carrier Accessory KitsThere are specific accessory kits sold for various field installedaccessories. These kits vary based on model, size, voltage,man

ELECTRICALOPTIONS PANEL\"\CONTROL BOXANDCOMPRESSOR\\\\\\\\\\INDOOR MOTORACCESS DOORfJOUTDOOR AIRSCREEN(HIDDEN)\\\\\CONDENSER COILACCESS PANEL//BA

UNITOPERATIONANDSAFETYHAZARDFailureto follow this warning could cause personaliniury, death and/or equipment damage.Puron ® (R-410A) refrigerant syste

UNITRELIABILITYHAZARDFailureto follow this caution may result in reduced unitperformance.High velocity water from a pressure washer, garden hose, orco

Toinspectblowerwheel,openheatsectiondoor.Usingaflashlight,lookintotheflueexhaustducttoinspect.If cleaningisrequired,removemotorandwheelassemblybyremov

7.Realignfanandmotorpulleys:a.Loosenfanpulleysetscrews.b.Slidefanpulleyalongfanshaft.c.Makeangularalignmentbylooseningmotorfrommountingplate.8.Tighten

Fig. 33 - Condenser-Fan Adjustment(08570Verify Sensor PerformanceVerify that thermistor, transducer, and switch inputs are readingcorrectly. These val

TheTXVis setto maintain between 10 and 15 degrees ofsuperheat at the compressors. The valves are factory set and cannotbe adjusted. Do not use A TXV d

High AltitudeFor high altitude applications greater than 2,000 ft the heat inputrate should be reduced. The higher the altitude is above sea level,the

Evaporator Fan Motor ProtectionIndoor-fan motors less than 5 hp are equipped with internalovercurrent and overtemperature protection. Protection devic

APPENDIX A - LOCAL DISPLAY AND CCN TABLESTable 27 -- MODE - RUN STATUSITEMRUN STATUSVIEWHVACOCCSATALRMTIMEVERSMBBECBAUXMARQMODESYSHVACHV.DNEFECEFEHOCC

ITEMSTRTA1CCHIDFOFC.1HT.1HT.2PE.1PE.2ALRM(ALRMDISP) = CCNonly)(GENERIC = CCNonly)(LON_DATA = CCNonly)APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)T

Accessory InstallationCheck to make sure that all accessories including sensors havebeen installed and wired as required by the instructions and unitw

ITEMSERVICE TESTTESTINDPECONE.CALPE.1PE.2ALRMCCHFANSIDFF.SPDOFC.1COOLCTLRCAPCF.SPDH EATHT.1HT.2ITEMTEMPERATURESAIR.TSATOATSPTSPTORATREETSSZASCZAITEMPR

APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 31 -- MODE - SET POINTSITEM EXPANSION RANGE UNITS DEFAULT CON POINTSETPOINTSOCSPUCSPOHSPUHSPGAPS

ITEMOUTPUTSFANSIDFF.SPDOFC.1COOLCTLRCAPCCCHH EATHT.1HT.2ECONEC.CPEC.APPE.1PE.2ALRMAPPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 33 -- MODE - O

ITEMCONFIGURATIONDISPMETRLANGPROTPSWDTESTUNITS.DLYOC.FNIDF.FFS.MXFS.MNFS.VMFN.SWFL.SWFS.SWRM.SWRH.SRH.SWTCS.CTCS.HCOOLMIN.CFS.CDMRT.CMOT.CRST.CFOD.CCS

ITEMH EATHT.TYN.HTRMRT.HMOT.HH.DECH.INCFOD.EFOD.GHT.LOSATSAT. HSAM.LSAM.USPTHT, PDHZNDH.LAGECONEC.ENE.CTLMR25MR50MR75MRMXEC.MXM.ANGEH.LOEL.LODF.DBUEFC

ITEMAIR.QIA.CFIA.FNII.CFII.FNAQ.MNOVR.POA.CFOAQ.LAQD.LAQD.HDF.ONDF.OF1.4M1.20MO.4MO.20MH.4MH.20MALM.OA.SPCA.SRTA.OATA.CSA.CMPA.CKTA.SSPA.SCTA.FANA.FIL

ITEM(GENERIC = CCN only)TRIMSPT.CSPT.TSAT.CSAT.TRAT.CRAT.TCCNCCN.ACCN.BBAUDBRODB.TIMB.OATB.GSB.ACKSCH.OSCH.NHOL.GOV.TLOV. EXOV.SPLDSHS.GRPR.MXCS.MXCR.

ITEMTIME CLOCKTIMETIMEDATEMNTHDOMYEARDAYDSTSTR.MSTR.WSTR.DM.ADDSTRMSTRWSTRDM.SUBSCH.LPER.xOCC.xUNC.xMON.xTUE.xWED.xTHU.xFRI.xSAT.xSUN.xHOL.x(repeat up

ITEMOPERATING MODESMODESYSHVACHV.DNEFF.CEFF.HOCCT.OVRLINKD.LMTC.LOCH.LOCE.LOCCOOLCOOLOK.CLMS.TGOK.ECOK.MCC.LOCC.LOIDFF.SPDREQ.CMIN.CMAX.CLMT.CCAPCCTLR

ITEMH EATHEATOK.HTMS.TGH.LOCHT.LOIDFF.SPDAVL.HREQ.HLMT.HACT.HHT.1HT.2SATSAT. HSATSAM.LSAM.USPTSPTDMD.HTRNDHT.PDHZNDH.LAGECONEC.ENOCCIDFF.SPDCOOLE.LOCE

Table3 1 Application Specific ConfigurationsDISPLACEMENT SINGLE ZONEITEM EXPANSION DEFAULT UNITSVENTILATION VAVSASP Cool Supply Air Setpoint 65 dF 65

APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 37 -- MODE - OPERATING MODES (cont)ITEM(OCCDEFM = CCN only)(LINKDATA = CCN only)EXPANSIONOccupan

APPENDIX B - VFD INFORMATIONOn 48/50PD units, the supply fan speed is controlled by a 3-phaseVFD. The VFD is located in the supply fan section behind

APPENDIX B - VFD INFORMATION (CONT)Table 40 -- VFD CONFIGURATIONSParameter GroupAPPLICATION CRITICAL DRIVE PARAMETERS FOR ABB ACH550 DRIVESValueNOTEPa

APPENDIX B - VFDVFD OperationThe VFD keypad is shown in Fig. 41. The function of SOFTKEYS 1 and 2 change depending on what is displayed on thescreen.

APPENDIX B - VFD INFORMATION (CONT)To adjust the speed in HAND mode, press the UP or DOWNbuttons (the reference changes immediately). The reference ca

Download Application ParametersTo download application parameters only to the control panel fromthe VFD, perform the following procedure:1. Install th

HistoryFor reference, the last three fault codes are stored into parameters0401, 0412, 0413. For the most recent fault (identified byparameter 0401),

APPENDIX B - VFD INFORMATION (CONT)Table 41 -- FAULT CODESFAULTFAULT NAME IN PANEL DESCRIPTION AND RECOMMENDED CORRECTIVE ACTIONCODE1 OVERCURRENT Outp

APPENDIX B - VFD INFORMATION (CONT)Table 41 -- FAULT CODES (cont)FAULTFAULT NAME IN PANEL DESCRIPTION AND RECOMMENDED CORRECTIVE ACTIONCODE1000PAR HZR

APPENDIX B - VFD INFORMATION (CONT)Table 42 -- ALARM CODESALARM ALARM NAMEDESCRIPTION AND RECOMMENDED CORRECTIVE ACTIONCODE IN PANEL2001 - Reserved200

Fan StatusIf a Fan Status accessory was field installed, the unit must beconfigured for it by setting Configuration---_UNIT---_FN.SW tonormally open (

APPENDIX B - VFD INFORMATION (CONT)Main Fan ReplacementThe main cooling fan of the VFD has a life span of about 60,000operating hours at maximum rated

AIRFLOW(Cfm)120013001400150016001700180019002000AIRFLOW(Cfm)120013001400150016001700180019002000LEGENDBhp - BrakeHorsepowerAIRFLOW(Cfm)120013001400150

AIRFLOW(Cfm)120013001400150016001700180019002000AIRFLOW(Cfm)120013001400150016001700180019002000LEGENDBhp - BrakeHorsepowerAIRFLOW(Cfm)150016001700180

AIRFLOW(Cfm)15001600170018001900200021002200230024002500AIRFLOW(Cfm)15001600170018001900200021002200230024002500LEGENDBhp - BrakeHorsepowerAIRFLOW(Cfm

AIRFLOW(Cfm)120013001400150016001700180019002000Table 50 -- Fan Performance - 48PDD05 Horizontal UnitsAVAILABLE EXTERNAL STATIC PRESSURE (in. wg)0.2 0

AIRFLOW(Cfm)120013001400150016001700180019002000Table 52 -- Fan Performance - 48PDF05 Horizontal UnitsAVAILABLE EXTERNAL STATIC PRESSURE (in. wg)0.2 0

AIRFLOW(Cfm)15001600170018001900200021002200230024002500AIRFLOW(Cfm)15001600170018001900200021002200230024002500LEGENDBhp - BrakeHorsepowerAIRFLOW(Cfm

AIRFLOW(Cfm)120013001400150016001700180019002000AIRFLOW(Cfm)120013001400150016001700180019002000LEGENDBhp - BrakeHorsepowerAIRFLOW(Cfm)150016001700180

AIRFLOW(Cfm)120013001400150016001700180019002000Rpm422439457477498521545569595Table 58 -- Fan Performance - 50PD05 Horizontal Units0.2Bhp0.110.130.160

GENERAL NOTES FOR FAN PERFORMANCE DATA TABLES1, Static pressure losses from accessories and options(economizer, etc.) must be added to external static