Carrier 48TM016-028 Specifications

48TM016-028Single-Package Rooftop UnitsElectric Cooling/Gas HeatingInstallation, Start-Up and Service InstructionsCONTENTSPageSAFETY CONSIDERATIONS ..

Table 1 -- Physical Data (cont)UNIT 48TMFURNACE SECTIONRollout Switch Cutout Temp (F)***Burner Orifice Diameter (in...drill size)Natural Gas StdTherm

Step 3 -- Field Fabricate Ductwork -- Secure allducts to building structure. Use flexible duct connectors be-tween unit and ducts as required. Insulat

INDUCED DRAFTMOTORCOMBUSTION MAIN BURNER HEAT EXCHANGERFAN HOUSING SECTION SECTIONFig. 11 -- Combustion Fan Housing Location\\\\\\\\\\\\\\\&\\\\\\

Step 8 -- Install Gas Piping -- Unit is equipped foruse with natmM gas. Installation must conform with loc_dbuilding codes or. in the absence of loc_d

OPTIONALNON-FUSEDDISCONNECT-- Onunitswiththeoptiomflnon-fuseddisconnect,incomingpowerwill bewiredintothedisconnectswitch.RefertoFig.17forwiringfor 100

Table 5 -- Electrical DataUNIT48TM016020025028NOMINAL VOLTAGE COMPRESSOROFM IFMVOLTAGE RANGE No, 1 No. 1A No, 2(3 Ph, 60 Hz) Min Max RLA LRA RLA LRA R

Step 10 -- Make Outdoor-Air Inlet Adjust-mentsMANUAL OUTDOOR-AIR DAMPER -- All units (exceptthose equipped with a factory-inst_dled economizer) have a

Step 12 -- Install All Accessories -- After ;dl thefactory-installed options have been adjusted, inst;dl all field-installed accessories. Refer to the

MOTORMASTER® V CONTROL INSTALLATION(48TM025 Only)Install Field-Fabricated Wind Baftles -- Wind baftles mustbe tield-fabricated for all units to ensure

Step 13 --Adjust Factory-Installed OptionsPREMIERLINK TM CONTROL -- The PrelnierLink control-ler is available as a special order from the facto U and

INSTALLATIONInspect unit for transportation damage. If &_mage is found,file any claim with the transportation agency.Step 1 -- Provide Unit Suppor

SATOATDDC CONTROLCMP SAFEFSDSFS,_ BLUEBRNBLKGRN ... t BRN_ _ PL1 - 5 BRN • ORN BRN_ PL1 - 6 VIO VIOBRNRED --BLu _@ _ ...BLOPi K GRN RED-- YEL iREDB

Table 8 -- PremierLink TM Sensor UsageAPPLICATION OUTDOOR AIR RETURN AIR OUTDOOR AIR RETURN AIRTEMPERATURESENSOR TEMPERATURESENSOR ENTHALPY SENSOR ENT

25"----_.35rnm)4253"(108 03mm)2_N/,25"(6.35mm)4 253"(I 08 03rnm)\c _N/Fig. 27 -- Enthalpy Switch/Receiver Dimensions(33CSENTHSW)Fi

DIFFERENTIAL ENTHALPY CONTROL (Fig. 30) --Diffemnti_d enthalpy control mquiles both an enth_dpy switch/receiver (33CSENTHSW) and an enth_dpy sensor(33

The mode jumper should be set to M3 for 4 to 20 mAoutput. The factory test jumper should remain on OFF or theenthalpy sensor will not calculate enthal

OutdoorairleakageisshowninTable9.ReturnairpressuredropisshowninTable10.Table 9 -- Outdoor Air Damper LeakageDAMPER STATICPRESSURE (in. wg)0.2 0.4 0.6

TO MAINCONTROLB0xPLI "Re- (NOT USED)PL1-9PL1-8(PL1-5PLI=I(PDT_RP_I"10(NOT USED)LEGENDDCV -- Demand Controlled VentilationIAQ -- Indoor Air Q

ECONOMI$ERIV CONTROL MODESIMPORTANT: The optional EconoMiSer2 does not includea controllel: The EconoMiSer2 is opelated by a 4 to 20 mAsignal from an

Outdoor Enthalpy Changeover -- For enthalpy control, ac-cessoq enthalpy sensor (part number HH57AC078) isrequired. Replace the stan&ud outdoor dry

Typicallythe maximum ventilation rate will be about 5 to10% more than the typical cfin required per person, usingnonmd outside air design criteria.A p

'..,4NOTES_1 BOBff CLJRB ACCBB (}BY / Bi PPLD O[ AS7 v:q F';.2. ]NBUtA[ED PANFL5_ I" THICK N_OPREkE CBArLn i¸¸//2 LB [}ENB[TY3 D]MFNSi0

In order to have the CO2 sensor control the economizerdmnper in this manner, first detennine file damper voltage out-put for minimum or base ventilati

Step 14 -- Install Humidistat for OptionalMoistureMi$er TM Package -- MoistureMi$er dehu-midification package operation can be controlled by fieldinst

CONDENSER COIL _SUCTIONtl DISCHARGEOUTDOORAIR_CCHCRANKCASE LIQUIDHEATER _ EVAPORATORCOIL\\---COMPRESSORSUBCOOLER - 1COILEQUALIZERLINE3-WAYVALVES-LPS _

START-UPUse the following information and Start-Up Checklist onpage CL-I to check out unit PRIOR to start-up.Unit Preparation -- Check that unit has b

AIRFLOW(cfm)4500480051005700600063006600690072007500Table 14 -- Fan Performance -- 48TMD016 (Low Heat Units)*AVAILABLE EXTERNAL STATIC PRESSURE (in. w

AIRFLOW(cfm)4500480051005700600063006600690072007500Table 15 -- Fan Performance -- 48TMF016 (High Heat Units)*AVAILABLE EXTERNAL STATIC PRESSURE (in.

AIRFLOW(cfm)Table 16 -- Fan Performance -- 48TMD020 (Low Heat Units)*AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)0,2 0.4 0.6 0.8 1,0 1.2Rpm Bhp Watts R

AIRFLOW(cfm)6,0006,5007,0007,5008,0008,5009,0009,50010,000Table 18- Fan Performance- 48TMD025 (Low Heat Units)*AVAILABLE EXTERNAL STATIC PRESSURE(in.

AIRFLOW(cfm)6,0006,5007,0007,5008,0008,5009,0009,50010,000Table 19 -- Fan Performance -- 48TMF025 (High Heat Units)*AVAILABLE EXTERNAL STATIC PRESSURE

Table 20 -- Fan Performance -- 48TMD028 (Low Heat Units)*AIRFLOW(cfm)7,0007,5008,0008,5009,0009,50010,00010,50011,00011,2500,2 0,4Rpm Bhp Watts Rpm Bh

4_ROOFCURB CURBA CESSOR,NE,O.,OESC I.ION RR'CUROO AO0.SO,,,.H,OH... '-I6 D 1/4" "/ is/)6 t INSULA"_D PANEli//0_ Ii122621I _

UNIT48TM016020025028Table 22 -- Air Quantity LimitsMINIMUMCOOLINGCFM4500540060007000MINIMUMHEATING CFMLow Heat High Heat3800 38004750 54504750 5450475

Operating SequenceCOOLING, UNITS WITHOUT ECONOMIZER -- Whenthermostat calls for cooling, terminals G and YI me energized.The indoor (evapolator) fan c

Routine 3 (OAT > 68)• Economizer is opened 100%.• Compressors 1 and 2 are cycled based on YI and Y2using minimum on and off times and watching the

HEATING.UNITWITHECONOMISER2,PREMIERLINKCONTROLANDA ROOMSENSOR-- Every40secondsthecontrollerwillcalculatetherequiredheatstages(maximumof3)tomaintainsup

FANSHAFTBEARINGS--Lubricatebearingsat leastevery6monthswithsuitablebearinggrease.Extendedgreaselineisprovidedforfarsidefanbearing(oppositedriveside).T

Belt Tension Adjustment -- To adjust belt tension:1. Loosen fan motor bolts.2. Turn motor jacking bolt to move motor mounting plate upor down for prop

Gas Valve AdjustmentNATURAL GAS--The gas valve ()pens and closes inresponse to the thermostat or limit control.When power is supplied to valve termina

Diagnostic IGC Control LEDs-- The IGC boardhas LEDs for diagnostic purposes. Refer to Troubleshootingsection on page 51.Optional Hinged Access Doors -

IIIQ-Fig. 57 -- Typical Wiring Schematic (48TM016,020 -- 208/230 V Shown)P_z__z48

CONTROL BOX 0_ oCOMPONENT ARRANGEMENT[][]GAS SECTIONEx_o_--\ :[]: /_[]B_u:ore,,,o,,'...,,, []','t, 'I"°@ ... Fr i[

SPR DER RS3'-7 1/2""DETAIL A"RIGGING HOOKUNIT BASE RAILNOTES:1. Dimensions in ( ) are in millimeters.2. Refer to Fig. 4-6 for uni

LEGEND AND NOTES FOR FIG. 57 AND 58LEGENDAHA -- Adjustable Heat Anticipator LED -- Light-Emitting DiodeC -- Contactor, Compressor LOR -- Lockout Relay

TROUBLESHOOTINGUnit Troubleshooting- Refer to Tables 27-29 andFig. 59.EconoMi$erlV Troubleshooting-- See Table 30for EconoMiSer IV logic.A functional

7. Remove jumper fiom TR to N.8. Remove jumper from TR to 1.9. Remove 5.6 kilo-ohm resistor from T and TI. Reconnectwires at T and TI.10. Remove jumpe

Table 28 -- Heating Service AnalysisPROBLEMBurners Will NotIgnite.Inadequate Heating.Poor FlameCharacteristics.Burners Will Not TurnOff.LEGENDGR -- Gr

Table 30 -- EconoMi$erlV Input/Output LogicDemand ControlVentilation (DCV)Below set(DCV LED Off)Above set(DCV LED On)INPUTSEnthalpy* CompressorOutdoor

I i _ - INOO(O FAN DELAY _I--(HEATrNG)I 2 R._S __ _ UMrr_TES _ WITH_O_D GAS VALVECYCLED 4 _S ON SINGLEMOTOR FAULTOwo slgnalfrom _'w_,H_I Effect,_

Fig. 60 -- EconoMiSerlV Functional View56

Air quality limits 40Altitude compensation 12Burner section 12Burner spark gap 47Carrier Comtbrt Networked) 19Charging chart, refrigerant 45Clearance

SERVICE TRAININGPackaged Service Training programs _ue an excellent way to increase your knowledge of the equipmentdiscussed in this manual, including

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

--4TYP (4) PLC5O'-3 7/B"{££} 7!(206) I35"-7 3/16"(1707)CORNER8BECTIOIUNIf 5TD. UNIT ECON_EZER CORNER CORNER CORNER CORNER DIM A Ol

I'-7(504)LY- O'-B 15/16" _"I_ Z'U2"O0 4 T 2270 L8 90 LB 532 LB 526 LB 569 LB 593 L8 4*-6" -7 I/4" '-I I/4

Table1-- Physical DataUNIT 48TM 016D/F 020D/F 025D/F 028D/FNOMINAL CAPACITY (tons) 15 18 20 25OPERATING WEIGHT 1800 1850 1900 2270Economizer 90 90 90