Carrier 48TJ016-028 specifications Air Quantity Limits, Accessory/FlOP Static Pressure

Page 35

Table 20 --Air Quantity Limits

UNIT

MINIMUM

MINIMUM

MAXIMUM

HEATING

CFM

COOLING

48TJ

CFM

CFM

Low Heat

High Heat

 

 

 

 

 

016

4500

3800

3800

7,500

020

5400

4750

5450

9,000

024

6000

4750

5450

10,000

028

7000

4750

5450

11,250

Table 21 -- Accessory/FlOP Static Pressure*

(in. wg) -- 48TJ016

COMPONENT4500 5000 CFM6000 7200 7500

Economizer0.04 0.05 0.07 0.09 0.10

LEGEND

FlOP -- Factory-Installed Option

*The static pressure must be added to external static pressure. The sum and the evaporator entering-air cfm should then be used in conjunction with the Fan Per- formance tables to determine blower rpm and watts.

Table 22 --Accessory/FlOP Static Pressure*

(in. wg) --48TJ020-028

CFM

COMPONENT 5000 6000 7200 9000 10,000 I 11,250

Economizer 0.06 0.07 0.09 0.11 0.12 I 0.14

LEGEND

FlOP -- Factory-Installed Option

*The static pressure must be added to external static pressure, The sum and the evaporator entering-air cfm should then be used in conjunction with the Fan Perfor- mance tables to determine blower rpm and watts.

Table 23 --MoistureMi$er TM Dehumidification

Package Static Pressure Drop (in. wg)

UNIT SIZE

UNIT NOMINAL

 

CFM PER TON

 

TONS

300

4OO

500

 

48TJ016

15

.040

.071

.111

48TJ020

18

.058

.102

.160

48TJ024

2O

.071

.126

.197

48TJ028

25

.111

.197

.308

Table 24 --Fan Rpm at Motor Pulley Settings*

 

 

UNIT

 

 

 

 

 

 

 

 

 

MOTOR

PULLEY

TURNS

OPEN

 

 

 

 

 

 

48TJ

 

 

 

 

0

lr2

1

11/2

2

2112

3

31/2

4

41/2

5

5112

6

016

(208/230,

460 v)t

 

tt

tt

1179

1150

1121

1093

1064

1035

1006

978

949

920

891

016

(208/230,

460

v)**

1-t

1-t

1559

1522

1488

1455

1422

1389

1356

1323

1289

1256

1227

 

016

(575 v)l"

 

 

1-t

1-t

1429

1403

1376

1349

1323

1296

1269

1242

1215

1188

1159

 

 

0201"

 

 

 

 

1-t

1-t

1095

1077

1058

1040

1021

1002

984

965

947

928

910

 

 

020**

 

 

 

 

tt

1-t

1287

1265

1243

1222

1200

1178

1156

1134

1112

1091

1069

 

 

0241"

 

 

 

 

1-t

1-t

1225

1209

1187

1165

1143

1120

1098

1076

1053

1031

1002

 

 

024**

 

 

 

 

tt

1-t

1456

1434

1407

1381

1354

1326

1301

1275

1246

1222

1193

 

 

0281"

 

 

 

 

1-t

1-t

1283

1269

1247

1225

1203

1182

1160

1136

1116

1095

1066

 

 

028**

 

 

 

 

1-t

1-t

tl-

tl-

1551

1524

1497

1470

1443

1415

1386

1361

1332

*Approximate

fan rpm

shown.

 

 

 

 

 

NOTE: For

speeds

not listed

above,

field-supplied

drives are

l-Indicates standard

drive

package,

 

 

 

 

required.

 

 

 

 

 

 

**Indicates alternate

drive

package.

 

 

 

 

 

 

 

 

 

 

 

 

ttDue to belt and pulley size, pulley cannot be set to this number of turns open.

35

Image 35
Contents Installation, Start-Up Service Instructions Package no Height Accessory CurbRig and Place Unit --Do not diop unit 14-3/4OUTLINEGPUN,T Unit DimensionsSpreaderbars Detail a Unit Base RailSTD Unit Economizer DIM B DIM C Unit WeightDIM a DIM B DIM C Weight BTD Unit Unit WeightEvaporator FAN Physical DataOUTDOOR-AIR Inlet Screens Unit 48TJ Furnace SectionFreeze Protection Thermostat F Inside Install Flue Hood and Wind BaffleMake Unit Duct Connections -- Unit Trap Condensate Drain -- See FigLP Gas Conversion Orifice Change -- This unit is factory asOrifice Quantity TBI VO Ltag EGAS Thermostat Assembly Field Control Thermostat WiringElectrical Data PAN Make Outdoor-Air Inlet Adjust- mentsSecuring Screws PanelMotormaster I Control Installation Install All Accessories-- Install all48TJ024,028 Motormaster V Control InstallationMotormaster V Control Package Usage Item DescriptionOutputs AdjustFactory-Installed OptionsGrinyel ELDWnti Econo MotorOutdoor AIR Return Application Temperature Sensor Enthalpy33CSENTHSW Differential Enthalpy Control Wiring JIN Unit OutdoorOptional Economiseriv and ECONOMISER2 EconoMiSerlVComponent Locations-- End ViewEconoMi$erlV Wiring ECONOMI$ERIV Supply Air Sensor Temperature Resistance ValuesEconoMi$erlV Sensor Usage Economiseriv Standard Sensors11t,4 SR117 EconoMi$erlV Controller 002 Sensor Maximum Range SettingAOlI so+Nocv To x l---ff+ TR 002 Sensor Standard Settings Tran MOISTUREMI$ERLlsv LPSCrankcase Heater Size 028 and Units with Compressor RotationAirflow Fan Performance --48TJD016 Low Heat UnitsFan Performance --48TJD020 and 024 Low Heat Units Fan Performance --48TJF016 High Heat Units Fan Performance 48TJD028 Low Heat UnitsFan Performance --48TJF028 High Heat Units Fan Performance 48TJF020 and 024 High Heat UnitsAir Quantity Limits Accessory/FlOP Static PressureAccessory/FlOP Static Pressure In. wg --48TJ020-028 Fan Rpm at Motor Pulley SettingsOperating Sequence Evaporator-Fan Motor DataEvaporator-Fan Motor Efficiency COOLING, Units with ECONOMISER2, Premier COOLING. Units with ECONOMISER2, PremierHEATING. Unit with ECONOMI$ER2, Premierlink OAT SPTTypical Gas Heating Section Coil Maintenance and Cleaning RecommenManufacturer Lubricant Evaporator Fan Performance AdjustmentLubrication Condenser and EVAPORATOR-FAN MotorWith Belt Evaporator Fan Service and ReplacementMotor Section Fixed Flange SINGLE-GROOVECondenser-Fan Adjustment Belt Tension Adjustment --To adjust belt tensionControl Circuit, 24-7--This control circuit is pro Gas Valve AdjustmentDiagnostic IGC Control LEDs-- The IGC bomd Protective DevicesSee 48TJD016D o,,-PL1o-12 1Oll IOll 1011BKR W/AT AHAUnit Troubleshooting- Refer to Tables 27-29 Than Normally Cooling Service AnalysisCause Remedy Will NotMoistureMi$er TM Dehumidification Heating Service AnalysisSubcooler Service Analysis Problem CauseEr LOC.rsOFF Valve Motor FaultOutputs EconoMi$erlV Input/Output LogicInputs DCVIndex Service Training Page Compressor Amps Supply FAN Amps Exhaust FAN Amps RETURN-AIR TemperatureModel no Serial no Date Supply Voltage

48TJ016-028 specifications

The Carrier 48TJ016-028 is a notable model in the range of packaged rooftop units designed by Carrier, a leader in heating, ventilation, and air conditioning (HVAC) solutions. Tailored specifically for commercial applications, these units provide a blend of efficiency, durability, and reliability, making them suitable for a variety of settings, including offices, retail spaces, and industrial environments.

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