Carrier 48TCA04---A12 Altitude Compensation* A04-A07, Cont. Altitude Compensation* A08-A12

Page 30

48TC

Table 11 – Altitude Compensation* (A04-A07)

 

 

 

 

 

 

 

 

 

 

72,000 BTUH

115,000 BTUH

150,000 BTUH

ELEVATION

Nominal

Nominal

Nominal

ft (m)

NG

LP

NG

LP

NG

LP

 

 

Orifice Size

Orifice Size

Orifice Size

Orifice Size

Orifice Size

Orifice Size

0 --- 2000 (610)

331

514

331

503

†30

463

2000

(610)

351

514

351

514

†30

473

3000

(914)

351

524

351

514

311

473

4000 (1219)

361

524

361

514

311

483

5000 (1524)

361

524

361

514

311

483

6000 (1829)

372

524

372

524

311

483

7000 (2134)

382

534

382

524

321

493

8000 (2438)

392

534

392

524

331

493

9000 (2743)

†40

534

†40

534

341

503

10000

(3048)

†41

544

†41

534

351

503

11000

(3353)

†42

544

†42

534

361

514

12000

(3658)

†43

544

†43

544

372

514

13000

(3962)

†43

554

†43

544

382

524

14000

(4267)

442

†56

442

554

†40

534

Table 11 (cont.) - Altitude Compensation* (A08-A12)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

125,000

 

 

250,000

180,000, 224,000

ELEVATION

 

BTUH Nominal

 

 

BTUH Nominal

BTUH Nominal

ft (m)

 

NG Orifice

 

LP Orifice

 

NG Orifice

LP Orifice

NG Orifice

LP Orifice

 

 

 

Size

 

Size

 

 

Size

Size

Size

Size

0 --- 2000 (610)

 

311

 

493

 

 

†30

463

311

483

2000

(610)

 

321

 

503

 

 

†30

473

321

493

3000

(914)

 

321

 

503

 

 

311

473

321

493

4000 (1219)

 

331

 

503

 

 

311

483

331

493

5000 (1524)

 

331

 

514

 

 

311

483

331

503

6000 (1829)

 

341

 

514

 

 

311

483

341

503

7000 (2134)

 

351

 

514

 

 

321

493

351

503

8000 (2438)

 

361

 

524

 

 

331

493

361

514

9000 (2743)

 

372

 

524

 

 

341

503

372

514

10000

(3048)

 

382

 

524

 

 

351

503

382

524

11000

(3353)

 

392

 

534

 

 

361

514

392

524

12000

(3658)

 

†41

 

534

 

 

372

514

†41

534

13000

(3962)

 

†42

 

544

 

 

382

524

†42

534

14000

(4267)

 

†43

 

544

 

 

†40

534

†43

544

LEGEND

 

 

 

 

 

 

 

1 = CRLPELEV001A00

 

 

NG = Natural Gas

LP = Liquid Propane

 

 

 

 

 

* As the height above sea level increases, there is less oxygen

 

2 = CRLPELEV002A00

 

 

per cubic ft. of air. Therefore, heat input rate should be reduced

3 = CRLPELEV003A00

 

 

at higher altitudes.

 

 

 

 

 

 

4 = CRLPELEV004A00

 

 

{ Not included in kit. May be purchased separately through

 

 

 

 

 

dealer.

30

Image 30
Contents Table of Contents Safety ConsiderationsGeneral Unit Arrangement and AccessRoutine Maintenance What to do if you smell gasSeasonal Maintenance Supply FAN Blower Section Supply Fan Belt-DriveCondenser Coil Maintenance and Cleaning Recommendation CoolingCondenser Coil Remove Surface Loaded Fibers Periodic Clean Water RinseRoutine Cleaning of Coil Surfaces One-Row CoilEvaporator Coil Refrigerant System Pressure Access PortsCleaning the Evaporator Coil Evaporator Coil Metering DevicesRefrigerant Charge To Use Cooling Charging ChartsPuronr R-410A Refrigerant No ChargeCooling Charging Charts Size Designation Nominal Tons ReferenceCooling Charging Charts C08229 C08437 C08438 C08439 Cooling Service Analysis Problem Cause RemedyConvenience Outlets Condenser-Fan AdjustmentTroubleshooting Cooling System CompressorController Smoke DetectorsSystem Unit Connect Primary TransformerSensor Smoke Detector LocationsCompleting Installation of Return Air Smoke Sensor Fiop Smoke Detector Wiring and ResponseController Alarm Test Sensor Alarm TestSensor Alarm Test Procedure Sensor and Controller TestsDirty Sensor Test Procedure Controller Alarm Test ProcedureDirty Controller Test Procedure To Configure the Dirty Sensor Test OperationDetector Cleaning Troubleshooting Compressor Protection Protective DevicesGAS Heating System Relief DeviceNatural Gas Manifold Pressure Ranges Fuel Types and PressuresNatural Gas Supply Line Pressure Ranges Liquid Propane Supply Line Pressure RangesFlue Gas Passageways Combustion-Air BlowerBurners and Igniters Cleaning and AdjustmentCheck Unit Operation and Make Necessary Adjust- ments Main BurnersLimit Switch Burner IgnitionOrifice Replacement LED Error Code DescriptionLED Indication Error Code Description Red LED-Status IGC Connections Orifice SizesAltitude Compensation* A04-A07 Cont. Altitude Compensation* A08-A12LP Orifice Troubleshooting Heating System Minimum heating entering air temperatureAltitude Compensation* A04-A06 Low NOx Units Heating Service Analysis Problem Cause RemedyIGC Board LED Alarm Codes IGCPremierlinkt Control PremierLink ControllerPremierLink Wiring Schematic 55 Space Temperature Sensor Wiring Space Sensor Mode PremierLink Sensor UsageThermostat Mode 56 Internal ConnectionsLctb Indoor CO2 Sensor 33ZCSENCO2 Connections PremierLink Filter Switch Connection RTU-MP Control System Recommended CablesColor Code Recommendations RTU-MP Multi-Protocol Control Board RTU-MP System Control Wiring Diagram RTU-MP Controller Inputs and Outputs OutputsSpace Temperature SPT Sensors RTU-MP T-55 Sensor ConnectionsIAQ Sensor SEN J4-2 COM J4-3 24 VAC Connecting Discrete Inputs Power Exhaust outputCommunication Wiring Protocols RTU-MP Troubleshooting LEDs LEDs on the RTU-MP show the status of certain functionsTroubleshooting Alarms Alarms BACnet MS/TPRTU-MP Driver Manufacture Date Basic Protocol TroubleshootingModbus Code Name MeaningEconomizer Systems EconoMi$er IV Component LocationsEconoMi$er IV Wiring EconoMi$er EconoMi$er IV Input/Output LogicEconoMi$er IV Control Modes Supply Air Temperature SAT SensorOutdoor Air Lockout Sensor Outdoor Dry Bulb ChangeoverReturn Air Temperature or Enthalpy Sensor Mounting Location Outdoor Enthalpy ChangeoverExhaust Setpoint Adjustment Indoor Air Quality IAQ Sensor InputMinimum Position Control Occupancy Control Damper MovementThermostats Demand Control Ventilation DCVEconoMi$er IV Preparation CO2 Sensor ConfigurationEconoMi$er IV Sensor Usage Differential EnthalpyWiring Diagrams 48TC Typical Unit Wiring Diagram Power A06, 208/230-3-60 48TC Unit Wiring Diagram Control A06 PRE-START-UP START-UP, GeneralHeating CoolingMain Burners Ventilation Continuous FanSTART-UP, RTU-MP Control Field Service TestSTART-UP, Premierlink Controls Perform System Check-OutConfiguration Space Sensor Type InputsInput Input 1 FunctionHeating, Units Without Economizer Operating SequencesBase Unit Controls Cooling, Units Without Economizer Cooling, Unit With EconoMi$erHeating With EconoMi$er PremierLink Control48TC Available Cooling Stages OAT ≤ SPT 48TC 48TC Linkage Modes Loadshed Command Gas and Electric Heat UnitsRTU-MP Sequence of Operation SchedulingBACnet Schedule Always Occupied Default OccupancyLocal Schedule BAS On/OffPower Exhaust EconomizerIndoor Air Quality Fastener Torque Values Demand LimitTorque Values Serial Number Format Appendix I. Model Number SignificanceModel Number Nomenclature Position NumberAppendix II. Physical Data Physical Data Cooling TonsPhysical Data Cooling 48TC*A08 48TC*A09 48TC*A12Physical Data Heating LOW Appendix III. FAN Performance General Fan Performance NotesTon Horizontal Supply Ton Vertical SupplyCFM RPM BHP Medium Static Option High Static Option 48TC**05 Phase Ton Horizontal Supply 48TC**051506 48TC**05 Phase Ton Vertical Supply1493 148648TC**06 148248TC**06 Phase Ton Horizontal Supply 48TC**06 Phase Ton Vertical SupplyPhase Ton Horizontal Supply 48TC**071103 1143 11071124 1122 11621116 4971099 1093 11331247 5791263 1273Pulley Adjustment Unit MOTOR/DRIVE Motor Pulley Turns Open ComboRange RLA LRA Appendix IV. Electrical DataIFM TypeAppendix IV. Electrical Data FLARLA LRA IFM RangeEFF at FullFAN Motor Exhaust Combustion PowerNOM IFM No P.E Type DISC. SizeUnbalanced 3-Phase Supply Voltage NOMAppendix V. Wiring Diagram List Wiring DiagramsAppendix VI. Motormaster Sensor Locations 48TC*A04 Outdoor Circuiting48TC*A09/12 Outdoor Circuiting Catalog No 48TC---2SMUnit START-UP Checklist Preliminary Information

48TCA04---A12 specifications

The Carrier 48TCA04---A12 is a high-efficiency rooftop air conditioning unit designed for commercial and industrial applications. Known for its reliability and performance, this model features advanced technologies that cater to diverse climate control needs.

One of the standout features of the Carrier 48TCA04---A12 is its excellent energy efficiency, which adheres to the stringent standards set by the U.S. Environmental Protection Agency. The unit utilizes a highly efficient scroll compressor combined with state-of-the-art heat exchanger technology, allowing it to operate with minimal energy consumption while providing powerful cooling capabilities.

The unit comes equipped with a robust and durable design, built to withstand various environmental conditions. Its weather-resistant cabinet is constructed from high-quality materials, ensuring long-lasting performance even in harsh climates. Additionally, the unit features a galvanized steel structure with a powder-coated finish, further enhancing its resistance to corrosion and wear.

In terms of technologies, the Carrier 48TCA04---A12 incorporates advanced controls that promote optimal performance. The unit supports Carrier's smart connectivity options, facilitating remote monitoring and adjustments via smart devices. This feature ensures convenient energy management and allows maintenance teams to access performance data, leading to proactive service interventions.

Another important characteristic of this unit is its quiet operation. The design includes sound-reducing insulation and a well-engineered airflow system, minimizing noise levels to create a more comfortable indoor environment. This is particularly important for commercial spaces such as offices and retail environments, where a tranquil atmosphere is critical for customer satisfaction and productivity.

The Carrier 48TCA04---A12 also offers diverse application flexibility, making it suitable for various locations, from small retail stores to large warehouses. With several tonnage options available, users can select a model that perfectly aligns with their specific cooling needs. Additionally, the unit can be easily integrated with existing HVAC systems, providing a seamless solution for upgrading or retrofitting older installations.

To sum up, the Carrier 48TCA04---A12 rooftop air conditioning unit stands out due to its exceptional energy efficiency, durable construction, advanced technology, and quiet operation, making it a reliable choice for commercial and industrial cooling solutions. Its flexibility and smart technology integrations ensure that it meets a wide range of climate control requirements effectively.