Carrier 48PG20---28 Specifications

48/50PG20-28Single Package Rooftop Unitswith COMFORTLINK TMControlsand PURON® (R-410A) RefrigerantControls, Start-Up, Operation, Service andTroublesho

Table 6 -- Fan Performance -- 48PGD24 -- Vertical Supply/Return UnitsAVAILABLE EXTERNAL STATIC PRESSURE (in. wg)AIRFLOW 0.4 0.6(Cfm)5,5006,0006,5007,0

APPENDIX A -- LOCAL DISPLAY AND CCN TABLES (cont)MODE -- CONFIGURATION (cont)ITEM I EXPANSIONCONFIGURATION (cont)AIR.Q Air Quality ConfigurationIA.CF

ITEMTIME CLOCKTIMETiMEDATEMNTHDOMYEARDAYDSTSTR.MSTR.WSTR.DM.ADDSTP.MSTP.WSTP.DM.SUBSCH.LPER.xOCC.xUNC.xMON.xTUE.xWED,xTHU.xFRI.xSAT.xSUN.xHOL.x(repeat

ITEMOPERATING MODESMODESYSHVACOCCT.OVRLINKC.LOCH.LOCE.LOCCOOLCOOLOK.CLMS.TGOK.ECOK.MCC.LOCCA.LOCB.LOCC.LOAVL.CREQ.CACT.CCMP.ACMP.BCMP.CST, AST, BST, C

ITEMOPERATING MODES (cont)ECONEC,ENOCCIDFCOOLE.LOCEH.LOELLOFC.LOEN.LOEC.MXEC.MNAQ.DVAQ.MNAQ.OVOVR.PAQ.LOOAQ.LLP.OVEC.CPEC.APEC.MPE.CAL(Display TRIM--

APPENDIX B -- CONTROL MODES WITHHUMIDI-MIZER TM SYSTEM AND ECONOMIZERThermostat input shown tbr cooling demand (versus tem-perature sensor and set poi

Copyright 2006 Carrier CorporationManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and

Model Number:Serial Number:Date:Technician:CONTROL SET POINT AND CONFIGURATION LOGSo.rare Versions:MBB: CESR131320--ECB: CESR131249--MARQ: CESR131171-

ITEMCONFiGURATiON (cont)COOL (cont)SATSA.PDSA.NDSAT,USAT,LSPTCLPDCLNDC.LAGCIR.ACS.AICS,A2A!,FNA2,FNA3,FNCIR.BCS,BIBI,FNB2,FNB3.FNCIR.CCS.C1Ct.FNC2.FNC

MODE -- CONFIGURATION (cont)ITEM I EXPANSIONCONFIGURATION (cont)OFC (cont)3.OFF Fan Lev3 Off TemperatureHMZRREHTR.DECR.INCRH.FNRF.LVRF. ONRF. OFRA.LOR

Table 7 -- Fan Performance -- 48PGE24 -- Vertical Supply/Return UnitsAVAILABLE EXTERNAL STATIC PRESSUREAIRFLOW 0.2(Cfm)5,5006,0006,5007,0007,5008,0008

ITEMCONFIGURATION (cont)ECON (cont)FC.TMFC.LOPE,ENPE.1PE,2EN.SWE,TRVE,MXBE,MXME,MXTE,DBDEC,PEC,IEC,DEC.DTAIR.QIA,CFIA,FNII,CFII,FNAQ.MNEC,MNOVR.POA.CF

ITEMCONFIGURATION (cont)TRIMSPT.CSPT.TSAT.CSAT.TRAT.CRAT.TCCNCCN.ACCN,BBAUDBRODB.TIMB,OATB.GSB,ACKSCH.OSCH.NHOL.GOV.TLOV.EXOV.SPMODE -- CONFIGURATION

UNIT START-UP CHECKLISTMODEL NO.: SERIAL NO.:DATE: TECHNICIAN:I. PRE-START-U P:[] VERIFY THAT ALL PACKING MATERIALS HAVE BEEN"REMOVED FROM UNIT[]

Table 8 -- Fan Performance -- 48PGF24 -- Vertical Supply/Return UnitsAVAILABLE EXTERNAL STATIC PRESSURE (in. wg)AIRFLOW 0.2 0.4 0.6(Cfm)5,5006,0006,50

Table 9 -- Fan Performance -- 48PGD28 -- Vertical Supply/Return UnitsAVAILABLE EXTERNAL STATIC PRESSUREAIRFLOW(Cfm)ABCD6,5007,0007,5008,0008,5009,0009

Table 10 -- Fan Performance -- 48PGE28 -- Vertical Supply/Return UnitsAVAILABLE EXTERNAL STATIC PRESSURE (in. wg)AIRFLOW 0.8(Cfm)ABC6,5007,0007,5008,0

Table 11 -- Fan Performance -- 48PGF28 --Vertical Supply/Return UnitsAVAILABLE EXTERNAL STATIC PRESSUREAIRFLOW(Cfm)AB6,5007,0007,5008,0008,5009,0009,5

AIRFLOW(Cfm)500055006000650070007500800085009000Rpm533571610650691732775817860Table 12 -- Fan Performance -- 50PG20 --Vertical Supply/Return UnitsAVAI

Table 13- Fan Performance- 50PG24- Vertical Supply/Return UnitsAVAILABLE EXTERNAL STATIC PRESSURE (in. wg)AIRFLOW 0.6(Cfm)5,5006,0006,5007,0007,5008,0

AIRFLOW(Cfm)6,5007,0007,5008,0008,5009,0009,50010,00010,50011,00011,50012,00012,500BCDTable 14 -- Fan Performance -- 50PG28 --Vertical Supply/Return U

AIRFLOW(Cfm)500055006000650070007500800085009000Table 15 -- Fan Performance -- 48PGD20 -- Horizontal Supply and Return UnitsRpm862937F10131089G 116612

CONTENTS (cont)PageENTHALPY SENSORSRETURN/SUPPLY AIR TEMPERATURE SENSORSPA(E HUMIDITY SENSORELECTRIC HEATSERVICE ...

AIRFLOW(Cfm)500055006000650070007500800085009000FGHTable 16 -- Fan Performance -- 48PGE20 -- Horizontal Supply and Return UnitsRpm87596210291106118412

AIRFLOW(Cfm)500055006000650070007500800085009000Table 17 -- Fan Performance -- 48PGF20 -- Horizontal Supply and Return UnitsRpm875952F10291106G 1184H

Table 18 -- Fan Performance -- 48PGD24 -- Horizontal Supply and Return UnitsAVAILABLE EXTERNAL STATIC PRESSURE (in. wg)AIRFLOW 0.8(Cfm)FGH5,5006,0006,

Table 19 -- Fan Performance -- 48PGE24 -- Horizontal Supply and Return UnitsAVAILABLE EXTERNAL STATIC PRESSURE (in. wg)AIRFLOW 0.2(Cfm)5,5006,0006,500

AIRFLOW(Cfm)5,5006,0006,5007,0007,5008,0008,5009,0009,50010,000Table 20 -- Fan Performance -- 48PGF24 -- Horizontal Supply and Return UnitsFGHRpm95210

Table 21 -- Fan Performance -- 48PGD28 -- Horizontal Supply and Return UnitsAVAILABLE EXTERNAL STATIC PRESSUREAIRFLOW 0.2(Cfm)6,5007,0007,5008,0008,50

AIRFLOW(Cfm)6,5007,0007,5008,0008,5009,0009,50010,00010,50011,OOO11,50012,00012,500EFGTable 22 -- Fan Performance -- 48PGE28 -- Horizontal Supply and

Table 23 -- Fan Performance -- 48PGF28 -- Horizontal Supply and Return UnitsAVAILABLE EXTERNAL STATIC PRESSUREAIRFLOW 0.2(Cfm)6,5007,0007,5008,0008,50

AIRFLOW(Cfm)500055006000650070007500800085009000Table 24 -- Fan Performance -- 50PG20 -- Horizontal Supply/Return UnitsRpm5756196637087538008478949410

Table 25 -- Fan Performance -- 50PG24 -- Horizontal Supply/Return UnitsAVAILABLE EXTERNAL STATIC PRESSURE (in. wg)AIRFLOW 0.6(Cfm)5,5006,0006,5007,000

Scrolling Marquee -- This device is the keypad imer-face used to access the control information, read sensor values,and test the unit. The Scrolling M

Table 26 -- Fan Performance -- 50PG28 -- Horizontal Supply/Return UnitsAVAILABLE EXTERNAL STATIC PRESSURE (in. wg)AIRFLOW 0.2(Cfm)EFGH6,5007,0007,5008

5OPG202428Table 28 -- Air Quantity Limits (50PG20-28 Units)Minimum Cfm500055006500COOLINGMaximum Cfm9,000I0,000I2,000ELECTRIC HEATHigh Heat (75 kW)Med

Table 29 -- Evaporator Fan Motor Specifications -- 48PG20-28 Units (cont)UNIT48PGDRIVELowORIENTATIONVerticalMid-Low VerticalMid-High VerticalHigh Vert

Table 30 -- Evaporator Fan Motor Specifications -- 50PG20-28 Units (cont)UNiT50PG2428DRIVELowORIENTATIONVerticalMid-Low VerticalMid-High VerticalHigh

Table 31 -- Accessory/FlOP Static Pressure (in. wg)* -- 48/50PG20-28 UnitsCOMPONENT I 4,000Economizer 0.02Humidi-MiZer TM (20, 24)Humidi-MiZer (28)4,5

Table 34 -- Fan Rpm At Motor Pulley Settings* -- 50PG20-2850PG DRIVELow Range VerticalMid-Low Range VerticalMid-High Range Vertical20 and 24 High Rang

Control Configuration Checklist- Refer to check-list CL- 1 for recording site specific unit control configurations.Programming Operating Schedules --

DISPLAYMENUTIMECLOCKSCH.LTable 35 -- Setting an Occupied Time Schedule -- Weekdays Only for 7:30 to 22:30SUB-SUB KEYPAD ITEM DISPLAYMODE ENTRYPER.1[][

DISPLAY MENU/SUB-MENU/NAMESERVICE TESTTESTINDPECONE.CALPE1PE2ALRMCCHFANSIDFOFC1OFC2OFC3COOLCMRACMRBCMRCOROVHMZRRH1 .ARH1 .BRH1 CRH2.ARH2.BRH2CCRCRHVAR

IAQ Switch -- For units with the economizer option oraccessory and the ECB control board, the IAQ switch inputis provided on the field connection term

System PilotTM Device -- The System Pilot (33PILOT-01) device is a component of Ca_cier's 3VTM system and servesas a user-interface and confimlra

Shut Down on IDF Failure (IDF..F) This conli_rationapplies only ifa tan switch is installed and configured. A YESvalue wilt enable diagnostic Alert T4

Indoor Fan -- The indoor thn is controlled by the indoortan relay output (Outputs--->FA?_i9--->IDF)on the MBB (mainbase board) control, wNch the

Two methods are used to add and relnove stages of coolingfor units with more than one compressor. The first methodcauses the unit to operate around it

Iftheindoortancontrolisconfiguredtocyclewiththeheat-ing demand((bnfiguration---_UNIr_OC.FN= No) thethn will stop after a conligured delay, (bnfigurati

The control uses rvvomethods to add a stage of heating. Thefirst method will add a stage of heating when theHeating Demand (Operating Modes-+HEAT---aq

SPACESENSORCONTROL If theunitis in cooling,operatingunderspacetcnnperaturecontrol,theeconomizerisavailableforcooling,andnocompressorsareoperating,thee

Outdoorfan controlfor Humidi-MiZersTstemunitsincludesaMotonnaster(r9variable-speedcontrolofsomeoralloutdoorPans,dependingonunitmodelsize.TheMotonnaste

RH2.x)METERINGDEVICE_,-_,_ CLOSED VALVEOPEN VALVE[_ 3-WAY VALVEI}INDOOR ENTERINGAIRFig. 8 -- Hot Gas Reheat Mode (Reheat2) -- Humidi-MiZer TM SystemSp

REHEATMODESELECTIONPROCESSSelectionofthereheatmodeforeachrefi-igerantcircuitisdeterminedfiomthespacehumidity(tiomRHsensoror switchinput)andthecircuitc

\\\\\\_\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\8 PLACES ON 020 0__9 PLACES O_ 628_s Et_CHS_EFig. 10- Wind Baffle DimensionsIndoor Air Quality (IAQ) -- The (

RUNSTATUSAuto View ofRun Status(VIEW)¢SoftwareVersionNumbers(VERS)4,ComponentRun Hours{HRS)¢ComponentStarts(STRT)¢Control Modes(MODE)4,Cooling Status(

---_ECMNor Configuration---_AIR.Q_OVR.P to provideeconomizer cooling.IA.CF = 3 (Control Minilnmn Position) When IA.CF =3, an external 4 to 20 mA somce

Configuration--+AIR.Q--+IA.FN= 2 (Always) The indoortan performance for IA.FN = 2 is the sane as the perforlnancewhen IA.FN = 1 except the algorithm i

Timed Override Hours (SCH.O_OV.EX) This displaysthe current number of hours left in an override. It is possible tocancel an override in pr%mess by wri

Table 43 -- ComfortLink TM Alarm CodesALARM ORALERT DESCRIPTION ACTION TAKEN RESET PROBABLE CAUSENUMBER BY CONTROL METHODT051 Compressor A1 Safety Tri

ALARM ORALERTNUMBERT410T411T412T413T414T415T416ECB -- Economizer Control BoardIGC -- integrated Gas ControllerTable 43 -- ComfortLink TM Alarm Codes (

andthereisnocurrent,verilyCSwiringandreplaceifnecessary.4. ReturntoNormalmodeandobsmTecompressoropera-tiontoverifythatcompressorcurrentsensorisworking

returnair,orstuckopeneconomizerwhentheambienttempera-tureislow.Alert Code T140 (Loss of Charge) See Alert Tll0.Alert Code T141 (Low Refrigerant Pressu

Alert Code T412 (W2 without Wl) This alert occurs inThermostat mode when W2 is energized and Wl is not. Veri_thermostat and thermostat wiring. When W2

Table 44 -- Cooling Service AnalysisPROBLEMCompressor and Fan Will Not Start.Compressor Cycles (other thannormally satisfying thermostat).Compressor O

Table 45 -- Humidi-MiZer TM Service AnalysisPROBLEMSubcooling Reheat ModeWill Not Activate.Hot Gas Reheat ModeWill Not Activate.No Dehumidification De

START-UPUse the t'ollowing information and Start-Up Checklist onpage CL-1 to check out unit PRIOR to start-up.Unit Preparation -- Check that unit

Table 46 -- Economizer Service AnalysisPROBLEMDamper Does Not Move.POSSIBLE CAUSEIndoor Fan is off.Economizer Operation is Limitedto Minimum Position,

A redLEDisprovidedtoindicatethefunctionoftheboard.Seethetablebelow.LED STATUS FUNCTIONOn Continuously Relay contact closed (normal operation).Relay co

Table 48 -- IGC Board LED Alarm CodesLED FLASH DESCRIPTION ACTION TAKEN BY RESET METHOD PROBABLE CAUSECODE CONTROLOn Normal Operation -- -- --Off Hard

I I FLASH - INDOOR F/_ D_.AY I_ iMOC_FIED (HEA_NG)I 2 _ - OPENING OF UMffI 3 FLASHES - FLAME SENSORINDICATES _ Win-{CLOSED GAS VALVE4 _ - LIMFFSW_CHCY

Fig. 13 -- SAT and OAT Thermistor MountingIfa more accurate check is required, unit must be shut do,a_and therlnistor relnoved and checked at a kalo,a

Table 50 -- Temperature (°F) vs ResistanceNoltage Drop Values forOAT, SAT, and SPT Thermistors (10K at 25 C Resistors)TEMP(F)-25-24-23-22-21-20-t9-t8-

Table 51 -- Temperature (°F) vs. Resistance/Voltage Drop Values for SCT Sensors (5K at 25 C Resistors)TEMP(F)-25-24-23-22-21-20-19-18-17-16-15-14-13-1

Table 52 -- Pressure (psig) vs. Voltage Drop Values for Suction Pressure TransducersPRESSURE VOLTAGE(psig) DROP (V)0 0.4652 0.4854 0.5056 0.5248 0.544

68

69

Orifice Change (48PG Only) -- This unit is factoryassembled for heating operation using natural gas at aal eleva-tion lfom sea level to 2000 ft.Use ac

.=!]I! I.,22II:= =i=,i: -'o_l::L_:i i, _EU)E0011,Io,m4,aEoU_000.3I?0

iiIIL71

_ ELECIRIC 1HEAT LARELOF_3OF_6Fig. 18 _ Power Schematic _ Units without Humidi-MiZe rT_ System72

I!F _LNSEE 1LABEL_I OPTION DEPENDENTFIELDJ HACR TB1II_ _ K!>t2NEQUIP GNDCONNECT VINE TOAPPROPR[ATE UNIT VOLTAGE_ TNVNI_LN<__(__YEL(__BLUFrqqCSAI

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IzwoiEt_1t.,Ni:'5E,I-I75

RED LED - STATUS-\GREEN LED -LEN (LOCAL EQUIPMENT NETWORK)Z/STATUSYELLOW LED -CCN (CARRIER COMFORT NETWORK)INSTANCE JUMPER (SET TO 1)DISPLAY NAMEINPUT

L-mRED LEDSTATUSGREEN LED-LEN(LOCAL EQUIPMENT NETWORK)Fig. 23 -- Economizer Control Board (ECB)Table 54 -- ECB ConnectionsDISPLAY NAME POINT DESCRIPTI

RED LED-STATUS0 UUUUUU.,:4LH33WPOO2A 1088-12Fig. 24 -- Integrated Gas Control (IGC) BoardTable 55 -- IGC ConnectionsTERMINAL LABEL POINT DESCRIPTION S

17 I 14 I I IJ1O J11 RUN TEST J12(_ SEPARATION OF CIRCUITS TO EACH 24V TRANSFORMER MUST BE MAINTAINEDI...I T55IFANSTATOSl1 2 3 4 5 6 7 8 9 10 R

AIRFLOW(Cfm)500055006000650070007500800085009000Table 4 -- Fan Performance -- 48PGE20 -- Vertical Supply/Return Units0.2Rpm Bhp607 1,53652 1.90699 2.3

Scrolling Marquee Display i This device is the key-pad interface used to access rooftop information, read sensorvalues, and test the unit. See Fig. 26

CCN BUSBUiLDiNG SUPERVISORNETWORKOPTIONSREMOTE AUTODtAL jCCN SITE -- GATEWAY --NON HvAcCARRtER L_EQUIPMENTCOMFORTCONTROLLERJROOFTOPUNITROOFTOPUNIT_ RO

Field-Installed AccessoriesSPACE TEMPERATURE SENSOR (T-55) The T-55 spacetemperature sensor (part no. 33ZCT55SPT) is a field-installedaccessory. The s

4.50V3281CLEARANCE HOLES FOR(2) #8 MOUNTINGSCREWS ON CENTERLINE_ /jr,--,----,=!--_], U jNOTE: Dimensions are in inches.Fig. :30 -- Space Temperature S

TB2-T55] RED] BLKTO MAINBASE BOARDRED REDI BLK BLKI I,I _I_ RED -_BLK Ir? USENSOR 1 SENSOR 27III REDBLK IrJ USENSOR3 SENSOR4SPACE TEMPERATURE AVERAGIN

SERVICEBefore performing smTice or ruaintenance operations onunit, turn off main power switch to unit. Electrical shockcould cause personal injury.Pur

NOTE:DoNOTUSEwaterinexcessof 130F,astheenzy-maticactivitywillbedestroyed.5. ThoroughlyapplyTotalineenviropanentaltyscumcoilcleanersolutiontoallcoilsur

2. Coverareaintiontoftheunitservicepanelwithaterryclothshoptoweltoabsorblubricantspillsandpreventrun-oft;.Towelwilt alsoprotectdropclothfiomtearscause

Evaporator Fan Belt Tension Adjustment -- Toadjust belt tension:1. Turn offunit power.2. Slide out fan deck to service position as shown in Evapo-rato

5OOO45OO4OOO35OO3000o 25002000150010005OOLEAK INVACUUM TIGHTTOO WETTIGHTDRY SYSTEM0 1 2 3 4 5 6 7MINUTESFig. 41 -- Deep Vacuum GraphTRIPLE EVACUATION

AIRFLOW(Cfm)500055006000650070007500800085009000Rpm60765269974679484289194099OTable 5 -- Fan Performance --48PGF20 --Vertical Supply/Return UnitsAVAIL

CHARGING CHART (ALL CIRCUITS)ALL OUTDOORFANS MUST BE OPERATINGIIIIIII IIIIIIIIIIIIB,I, IIIIIIIIIIII IIIIIIUb lllllllllllIIIIIII 134,t11111111111111111

Main Burners (48PG Only) -- For all applications,main burners are ti_ctory set and should require no adjustment.MAIN BURNER REMOVAL1. Shut off (field-

Filter Drier -- Replace whenever ref-igerant system is ex-posed to atmosphere. Only use factory specified liquid-linetilter driers with working pressu

ITEMRUN STATUSVIEWHVACOCCSATALRMTIMEVERSMBBECBMARQHRSA1A2B1CICCHIDFOFC,1OFC,2OFC.3HT,1HT,2PE,1PE,2ALRMCRCRH2,ARH2.BSTRTA1A2B1CICCHIDFOFC,1OFC,2OFC.3HT

ITEMRUN STATUS (cont)COOL (cont)CIR.BCMP, BTG.BCS,B1RH2.BSST.BSSP.BSCT.BSCP.BCIR,CCMP, CTG.C1CS.C1RH2.CSST.CSSP.CSCT.CSCP.CHEATDMD.HAVL.HREQ.HIDFHT.1T

ITEMSERVICE TESTTES TINDPECONE.CALPE.1PE.2ALRMCCHFANSIDFOFC.1OFC.2OFC.3COOLCMP.ACMP.BCMP.COF.OVHMZRRH1.ARH1.BRHI.CRH2.ARH2.BRH2.CCRCRHV.ARHV.BHEATHT,1

DISPLAY MENU/SUB-MENU/NAMESETPOINTSOCSPUCSPOHSPUHSPGAPSTO.RRH. SPRH. DBRH. HBCA.LOCB.LOCC.LOHT.LOEH.LOEL.LOFC.LOLCSPHCSPSAT.USAT.LITEMINPUTSSTATY1Y2WI

APPENDIX A -- LOCAL DISPLAY AND CCN TABLES (cont)MODE -- CONFIGURATIONITEMCONFIGURATIONDISPMETRLANGPROTPSWDTESTUNITS.DLYU.CTLT.CTLOC.FNIDF, FEC.ENFN,S

ITEM ICONFIGURATION (cont)COOL (cont)CIR, BCS,B1BI .FNB2,FNB3,FNCIR.CCS,C1C1.FNC2,FNC3,FNSSTSST, OSST, ISST,2SST,3OFCOFC.30.MXPI.MXP2.MNP2.ON2.OFF2.MX

APPENDIX A -- LOCAL DISPLAY AND CCN TABLES (cont)MODE -- CONFIGURATION (cont)ITEM I EXPANSIONCONFIGURATION (cont)HMZR HumJdimizer ConfigREHT Humidimiz