Carrier 50TCA04-A07 appendix Space Sensor Mode, Thermostat Mode, Field Connection Input Signal

Page 27

Table 7 – 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:

 

 

 

 

 

 

 

T55

 

---

Space Temperature Sensor

 

T56

 

---

Space Temperature Sensor

 

CCN

 

---

Carrier Comfort Network (communication bus)

 

CMPSAFE

---

Compressor Safety

 

 

 

FILTER

---

Dirty Filter Switch

 

 

 

FSD

 

---

Fire Shutdown

 

 

 

IAQ

 

---

Indoor Air Quality (CO2)

 

OAQ

 

---

Outdoor Air Quality (CO2)

 

RH

 

---

Relative Humidity

 

 

 

SFS

 

---

Supply Fan Status

 

 

 

 

 

 

 

 

 

Table 8 – Thermostat Mode

 

 

 

 

 

 

 

TB1 TERMINAL

 

FIELD CONNECTION

INPUT SIGNAL

 

 

1

 

 

 

RAT SEN

Analog (10k thermistor)

 

 

2

 

 

 

G

Discrete, 24VAC

 

 

3

 

 

 

RAT SEN

Analog (10k thermistor)

 

 

4

 

 

 

Y1

Discrete, 24VAC

 

 

5

 

 

 

 

 

 

 

 

6

 

 

 

Y2

Discrete, 24VAC

 

 

7

 

 

 

LOOP--- PWR

Analog, 24VDC

 

 

8

 

 

 

W1

Discrete, 24VAC

 

 

9

 

 

 

IAQ--- SEN

Analog, 4--- 20mA

 

 

10

 

 

 

W2

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:

 

 

 

 

 

 

 

CCN

---

Carrier Comfort Network (communication bus)

 

G

---

Thermostat Fan

 

 

 

IAQ

---

Indoor Air Quality (CO2)

 

 

 

OAQ

---

Outdoor Air Quality (CO2)

 

 

 

RAT

---

Return Air Temperature

 

 

 

RH

---

Relative Humidity

 

 

 

W1

---

Thermostat Heat Stage 1

 

 

 

W2

---

Thermostat Heat Stage 2

 

 

 

Y1

---

Thermostat Cool Stage 1

 

 

 

Y2

---

Thermostat Cool Stage 2

 

 

 

50TC

27

Image 27
Contents Safety Considerations Table of ContentsGeneral Unit Arrangement and AccessRoutine Maintenance Seasonal MaintenanceSupply Fan Belt-Drive Supply FAN Blower SectionSupply-Fan Pulley Adjustment Bearings Adjustable-Pitch Pulley on MotorCondenser Coil Maintenance and Cleaning Recommendation CoolingCondenser Coil Two-Row Coils Cleaning Condenser CoilRefrigerant Charge Refrigerant System Pressure Access PortsPuronr R-410A Refrigerant Evaporator CoilCoreMax Access Port Assembly To Use Cooling Charging ChartsCooling Charging Charts Cooling Charging ChartsCooling Charging Charts Condenser-Fan Location Troubleshooting Cooling SystemCompressor Filter DrierProblem Cause Remedy Cooling Service AnalysisSmoke Detectors Convenience OutletsSystem ControllerSensor Smoke Detector Locations Completing Installation of Return Air Smoke SensorReturn Air Sensor Operating Position Fiop Smoke Detector Wiring and ResponseDirty Sensor Test Sensor and Controller Tests Sensor Alarm TestController Alarm Test Dirty Controller TestChanging the Dirt Sensor Test Detector CleaningRemote Test/Reset Station Dirty Sensor Test Cleaning the Smoke DetectorControl or Indicator Description IndicatorsAlarm State Detector IndicatorsProtective Devices TroubleshootingCondenser Fan Motor Protection Electric HeatersRelief Device Control CircuitTypical Single Point Installation Completing Heater InstallationPremierLink Controller Premierlinkt ControlPremierLink Wiring Schematic Temp Resistance 55 Space Temperature Sensor WiringTemperature Enthalpy Sensor PremierLink Sensor UsageOutdoor AIR Return AIR TB1 Terminal Field Connection Input Signal Space Sensor ModeThermostat Mode Field Connection Input SignalLctb Outside and Return Air Enthalpy Sensor Wiring Tions Indoor CO2 Sensor 33ZCSENCO2 ConnecManufacturer CCN BUS Wire CCN Plug PIN Color NumberRecommended Cables Color Code RecommendationsPremierLink CCN Bus Connections Economizer SystemsRUN Inputs OutputsEconoMi$er IV Control Modes Supply Air Temperature SAT SensorEconoMi$er Outdoor Air Lockout SensorOutdoor Enthalpy Changeover Differential Dry Bulb ControlIndoor Air Quality IAQ Sensor Input Enthalpy Changeover SetpointsThermostats Exhaust Setpoint AdjustmentMinimum Position Control Damper MovementCO2 Sensor Configuration Demand Control Ventilation DCVEconoMi$er IV Sensor Usage Single Enthalpy DCV Demand Controlled Ventilation and Power ExhaustEconoMi$er IV Preparation Differential EnthalpyWiring Diagrams EconoMi$er IV Troubleshooting CompletionPRE-START-UP START-UP, Premierlink Controls START-UP, GeneralOperating Sequence, Base Unit Controls Memory ResetPerform System Check-Out Initial Operation and TestOperating Sequence, PremierLink Control 50TC Number Stages Economizer Available Cooling StagesOAT ≤ SPT 50TC 50TC Loadshed Command Gas and Electric Heat Units Fastener Torque ValuesLinkage Modes Torque Values 50TC Typical Unit Wiring diagram Power A0650TC Unit Wiring Diagram Control A06 Position Number Typical Designates Appendix I. Model Number SignificanceModel Number Nomenclature Serial Number FormatPhysical Data Cooling Tons Appendix II. Physical DataGeneral Fan Performance Notes Appendix III. FAN PerformanceTon Horizontal Supply Ton Vertical SupplyCFM RPM BHP 554 Standard Static Option1206 11701165 1225 121550TC**05 Phase Ton Horizontal Supply 765 724Phase Ton Horizontal Supply 974 1067 822 927 1018872 973 1061 923 1019Unit MOTOR/DRIVE Motor Pulley Turns Open Combo Pulley AdjustmentAppendix IV. Electrical Data FLA Appendix IV. Electrical DataMCA/MOCP Determination no C.O. or Unpwrd C.O 78/89 MCA/MOCP Determination no C.O. or Unpwrd C.O.152 159 Wiring Diagrams Appendix V. Wiring Diagram List50TC*A04 Outdoor Circuiting Appendix VI. Motormaster Sensor LocationsAppendix VI. cont Motormaster Sensor Locations Catalog No 50TC---1SM START-UP Checklist Pressures Cooling ModeRemove and Store in Job File

50TCA04-A07 specifications

The Carrier 50TCA04-A07 is a prominent model from Carrier, a leader in the heating, ventilation, and air conditioning (HVAC) industry. Designed for commercial applications, this unit exemplifies advanced technology and reliability, catering to a wide array of cooling needs.

One of the most notable features of the Carrier 50TCA04-A07 is its high efficiency. With a cooling capacity that suits various settings, it is engineered to provide excellent performance with minimal energy consumption. The unit achieves impressive Seasonal Energy Efficiency Ratio (SEER) ratings, which not only reduce operational costs but also lower the environmental impact.

The Carrier 50TCA04-A07 employs state-of-the-art inverter technology. This innovation allows the compressor to operate at varying speeds, adjusting its output according to the cooling demand. Consequently, the system can maintain optimal comfort levels while using less energy. Additionally, the inverter technology contributes to quieter operation, making it a suitable choice for environments where noise is a concern.

Durability is a hallmark of the Carrier 50TCA04-A07. Constructed with robust materials, this model is designed to withstand harsh conditions and ensure long-term reliability. The unit is equipped with corrosion-resistant components, extending its lifespan and maintaining performance quality over time.

Another significant characteristic of the Carrier 50TCA04-A07 is its advanced control system. The integrated control panel provides easy access to performance settings and monitoring capabilities. Users can effortlessly adjust temperatures and modes, ensuring a customizable climate. Furthermore, compatibility with smart building management systems enhances operational efficiency and real-time monitoring.

Regarding safety features, the Carrier 50TCA04-A07 is equipped with multiple sensors and automated responses to prevent overheating and ensure safe operation. These safety mechanisms not only protect the unit but also contribute to the overall safety of the installation environment.

In summary, the Carrier 50TCA04-A07 is a highly efficient, durable, and technologically advanced HVAC solution for commercial spaces. Its innovative features, including inverter technology, robust construction, and smart control systems, set it apart in the market, making it a reliable choice for businesses seeking to optimize their climate control needs while minimizing energy consumption and operational costs.