Carrier 48TCA04---A12 appendix PremierLink Sensor Usage, Space Sensor Mode

Page 37

Table 16 – PremierLink Sensor Usage

 

 

 

 

 

 

 

APPLICATION

OUTDOOR AIR

RETURN AIR

OUTDOOR AIR

RETURN AIR

TEMPERATURE

TEMPERATURE

ENTHALPY SENSOR

ENTHALPY SENSOR

 

 

 

SENSOR

SENSOR

 

 

 

 

 

 

 

 

 

 

Differential Dry Bulb

 

Required ---

 

 

Temperature with

Included ---

 

 

PremierLink

33ZCT55SPT

---

---

CRTEMPSN001A00

(PremierLink requires

or equivalent

 

 

 

 

 

4---20 mA Actuator)

 

 

 

 

 

 

 

 

 

Single Enthalpy with

Included ---

 

Requires ---

 

PremierLink

 

 

---

HH57AC077

---

(PremierLink requires

Not Used

 

or equivalent

 

4---20mA Actuator)

 

 

 

 

 

 

 

 

 

 

 

 

Differential Enthalpy

Included ---

 

Requires ---

Requires ---

with PremierLink

---

HH57AC077

HH57AC078

(PremierLink requires

Not Used

 

or equivalent

or equivalent

4---20mA Actuator)

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTES:

 

 

 

 

 

 

CO2 Sensors (Optional):

 

 

 

 

33ZCSENCO2

---

Room sensor (adjustable). Aspirator box is required for duct mounting of the sensor.

 

33ZCASPCO2

---

Aspirator box used for duct---mounted CO2 room sensor.

 

 

33ZCT55CO2

---

Space temperature and CO2 room sensor with override.

 

 

33ZCT56CO2

---

Space temperature and CO2 room sensor with override and setpoint.

 

Table 17 – Space Sensor Mode

 

 

 

 

 

 

TB1 TERMINAL

 

FIELD CONNECTION

 

 

INPUT SIGNAL

 

1

 

 

T55---SEN/T56---SEN

 

 

Analog (10k thermistor)

 

2

 

 

RMTOCC

 

 

Discrete, 24VAC

 

3

 

 

T55---SEN/T56---SEN

 

 

Analog (10k thermistor)

 

4

 

 

CMPSAFE

 

 

Discrete, 24VAC

 

5

 

 

T56---SET

 

 

Analog (10k thermistor)

 

6

 

 

FSD

 

 

Discrete, 24VAC

 

7

 

 

LOOP---PWR

 

 

Analog, 24VDC

 

8

 

 

SPS

 

 

Discrete, 24VAC

 

9

 

 

IAQ ---SEN

 

 

Analog, 4---20mA

 

10

 

 

FILTER

 

 

Discrete, 24VAC

 

11

 

IAQ ---COM/OAQ ---COM/RH ---COM

 

 

Analog, 4---20mA

 

12

 

 

CCN + (RED)

 

 

Digital, , 5VDC

 

13

 

 

OAQ ---SEN/RH ---SEN

 

 

Analog, 4---20mA

 

14

 

 

CCN Gnd (WHT)

 

 

Digital, 5VDC

 

15

 

 

AUX OUT(Power Exhaust)

 

 

(Output)Discrete 24VAC

 

16

 

 

CCN --- (BLK)

 

 

Digital, 5VDC

LEGEND:

 

 

 

 

FSD

---

Fire Shutdown

T55

---

Space Temperature Sensor

T56

---

Space Temperature Sensor

IAQ

--- Indoor Air Quality (CO2)

CCN

---

Carrier Comfort Network (communication bus)

OAQ

--- Outdoor Air Quality (CO2)

CMPSAFE

---

Compressor Safety

 

RH

---

Relative Humidity

FILTER

---

Dirty Filter Switch

 

SFS

---

Supply Fan Status

48TC

37

Image 37
Contents Safety Considerations Table of ContentsRoutine Maintenance Unit Arrangement and AccessGeneral What to do if you smell gasSeasonal Maintenance Supply Fan Belt-Drive Supply FAN Blower SectionCooling Condenser Coil Maintenance and Cleaning RecommendationCondenser Coil Routine Cleaning of Coil Surfaces Periodic Clean Water RinseRemove Surface Loaded Fibers One-Row CoilCleaning the Evaporator Coil Refrigerant System Pressure Access PortsEvaporator Coil Evaporator Coil Metering DevicesPuronr R-410A Refrigerant To Use Cooling Charging ChartsRefrigerant Charge No ChargeSize Designation Nominal Tons Reference Cooling Charging ChartsCooling Charging Charts C08229 C08437 C08438 C08439 Problem Cause Remedy Cooling Service AnalysisTroubleshooting Cooling System Condenser-Fan AdjustmentConvenience Outlets CompressorSystem Smoke DetectorsController Unit Connect Primary TransformerSmoke Detector Locations SensorFiop Smoke Detector Wiring and Response Completing Installation of Return Air Smoke SensorSensor Alarm Test Procedure Sensor Alarm TestController Alarm Test Sensor and Controller TestsDirty Controller Test Procedure Controller Alarm Test ProcedureDirty Sensor Test Procedure To Configure the Dirty Sensor Test OperationDetector Cleaning Troubleshooting GAS Heating System Protective DevicesCompressor Protection Relief DeviceNatural Gas Supply Line Pressure Ranges Fuel Types and PressuresNatural Gas Manifold Pressure Ranges Liquid Propane Supply Line Pressure RangesCombustion-Air Blower Flue Gas PassagewaysCheck Unit Operation and Make Necessary Adjust- ments Cleaning and AdjustmentBurners and Igniters Main BurnersBurner Ignition Limit SwitchLED Error Code Description Orifice ReplacementLED Indication Error Code Description Red LED-Status Orifice Sizes IGC ConnectionsCont. Altitude Compensation* A08-A12 Altitude Compensation* A04-A07LP Orifice Minimum heating entering air temperature Troubleshooting Heating SystemAltitude Compensation* A04-A06 Low NOx Units Problem Cause Remedy Heating Service AnalysisIGC IGC Board LED Alarm CodesPremierLink Controller Premierlinkt ControlPremierLink Wiring Schematic 55 Space Temperature Sensor Wiring PremierLink Sensor Usage Space Sensor Mode56 Internal Connections Thermostat ModeLctb Indoor CO2 Sensor 33ZCSENCO2 Connections PremierLink Filter Switch Connection Recommended Cables RTU-MP Control SystemColor Code Recommendations RTU-MP Multi-Protocol Control Board RTU-MP System Control Wiring Diagram Outputs RTU-MP Controller Inputs and OutputsRTU-MP T-55 Sensor Connections Space Temperature SPT SensorsIAQ Sensor SEN J4-2 COM J4-3 24 VAC Power Exhaust output Connecting Discrete InputsCommunication Wiring Protocols RTU-MP Troubleshooting LEDs on the RTU-MP show the status of certain functions LEDsTroubleshooting Alarms BACnet MS/TP AlarmsRTU-MP Driver Modbus Basic Protocol TroubleshootingManufacture Date Code Name MeaningEconoMi$er IV Component Locations Economizer SystemsEconoMi$er IV Wiring EconoMi$er IV Input/Output Logic EconoMi$erOutdoor Air Lockout Sensor Supply Air Temperature SAT SensorEconoMi$er IV Control Modes Outdoor Dry Bulb ChangeoverOutdoor Enthalpy Changeover Return Air Temperature or Enthalpy Sensor Mounting LocationIndoor Air Quality IAQ Sensor Input Exhaust Setpoint AdjustmentMinimum Position Control Thermostats Damper MovementOccupancy Control Demand Control Ventilation DCVEconoMi$er IV Sensor Usage CO2 Sensor ConfigurationEconoMi$er IV Preparation Differential EnthalpyWiring Diagrams 48TC Typical Unit Wiring Diagram Power A06, 208/230-3-60 48TC Unit Wiring Diagram Control A06 START-UP, General PRE-START-UPMain Burners CoolingHeating Ventilation Continuous FanSTART-UP, Premierlink Controls Field Service TestSTART-UP, RTU-MP Control Perform System Check-OutConfiguration Input InputsSpace Sensor Type Input 1 FunctionBase Unit Controls Cooling, Units Without Economizer Operating SequencesHeating, Units Without Economizer Cooling, Unit With EconoMi$erPremierLink Control Heating With EconoMi$er48TC Available Cooling Stages OAT ≤ SPT 48TC 48TC RTU-MP Sequence of Operation Loadshed Command Gas and Electric Heat UnitsLinkage Modes SchedulingLocal Schedule Always Occupied Default OccupancyBACnet Schedule BAS On/OffEconomizer Power ExhaustIndoor Air Quality Demand Limit Fastener Torque ValuesTorque Values Model Number Nomenclature Appendix I. Model Number SignificanceSerial Number Format Position NumberPhysical Data Cooling Tons Appendix II. Physical Data48TC*A08 48TC*A09 48TC*A12 Physical Data CoolingPhysical Data Heating LOW General Fan Performance Notes Appendix III. FAN PerformanceTon Vertical Supply Ton Horizontal SupplyCFM RPM BHP Medium Static Option High Static Option 48TC**05 48TC**05 Phase Ton Horizontal Supply1493 48TC**05 Phase Ton Vertical Supply1506 14861482 48TC**0648TC**06 Phase Ton Vertical Supply 48TC**06 Phase Ton Horizontal Supply48TC**07 Phase Ton Horizontal Supply1124 11071103 1143 1122 11621099 4971116 1093 11331263 5791247 1273Unit MOTOR/DRIVE Motor Pulley Turns Open Combo Pulley AdjustmentIFM Appendix IV. Electrical DataRange RLA LRA TypeFLA Appendix IV. Electrical DataEFF at IFM RangeRLA LRA FullNOM IFM No P.E Combustion PowerFAN Motor Exhaust Type DISC. SizeNOM Unbalanced 3-Phase Supply VoltageWiring Diagrams Appendix V. Wiring Diagram List48TC*A04 Outdoor Circuiting Appendix VI. Motormaster Sensor LocationsCatalog No 48TC---2SM 48TC*A09/12 Outdoor CircuitingPreliminary Information Unit START-UP Checklist

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.