Carrier 50TCA04-A07 appendix Economizer Systems, PremierLink CCN Bus Connections

Page 32

50TC

(typically WHT) to the unit’s TB1-14 terminal. Connect the CCN (-) lead (typically BLK) to the unit’s TB1-16 terminal. See Fig. 51.

CCN Bus

 

 

 

 

TB1

PL

+ (RED)

12

 

J2-1

 

TB1

GND (WHT) 14 J2-2

TB1

– (BLK) 16 J2-3

C08276

Fig. 51 - PremierLink CCN Bus Connections

ECONOMIZER SYSTEMS

The 50TC units may be equipped with a factory-installed or accessory (field-installed) economizer system. Two types are available: with a logic control system (EconoMi$er IV) and without a control system (EconoMi$er2, for use with external control systems such as PremierLink). See Fig. 52 and 53 for component locations on each type. See Fig. 54 and 55 for economizer section wiring diagrams.

Both economizers use direct-drive damper actuators.

ECONOMI$ER IV

CONTROLLER

WIRING

OUTSIDE AIR

TEMPERATURE SENSOR

HARNESS

LOW AMBIENT

 

ACTUATOR

SENSOR

 

C06021

Fig. 52 - EconoMi$er IV Component Locations

 

OUTDOOR

 

AIR HOOD

ECONOMI$ER2

HOOD

PLUG

SHIPPING

 

BRACKET

GEAR DRIVEN

BAROMETRICDAMPER RELIEF

DAMPER

C06022

Fig. 53 - EconoMi$er2 Component Locations

FOR OCCUPANCY CONTROL

REPLACE JUMPER WITH

FIELD-SUPPLIED TIME CLOCK

8

7

LEGEND

Potentiometer Defaults Settings:

NOTES:

DCV— Demand Controlled Ventilation

Power Exhaust

Middle

1.

620 ohm, 1 watt 5% resistor should be removed only when using differential

Minimum Pos.

Fully Closed

 

enthalpy or dry bulb.

IAQ — Indoor Air Quality

 

DCV Max.

Middle

2.

If a separate field-supplied 24 v transformer is used for the IAQ sensor power

LA — Low Ambient Lockout Device

OAT — Outdoor-Air Temperature

DCV Set

Middle

 

supply, it cannot have the secondary of the transformer grounded.

POT— Potentiometer

Enthalpy

C Setting

3.

For field-installed remote minimum position POT, remove black wire jumper

RAT — Return-Air Temperature

 

 

 

between P and P1 and set control minimum position POT to the minimum

 

 

 

 

position.

C06028

Fig. 54 - EconoMi$er IV Wiring

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Contents Table of Contents Safety ConsiderationsUnit Arrangement and Access Routine MaintenanceSeasonal Maintenance GeneralSupply FAN Blower Section Supply Fan Belt-DriveAdjustable-Pitch Pulley on Motor Supply-Fan Pulley Adjustment BearingsCondenser Coil Condenser Coil Maintenance and Cleaning RecommendationCooling Cleaning Condenser Coil Two-Row CoilsRefrigerant System Pressure Access Ports Puronr R-410A RefrigerantEvaporator Coil Refrigerant ChargeTo Use Cooling Charging Charts CoreMax Access Port AssemblyCooling Charging Charts Cooling Charging ChartsCooling Charging Charts Troubleshooting Cooling System CompressorFilter Drier Condenser-Fan LocationCooling Service Analysis Problem Cause RemedyConvenience Outlets Smoke DetectorsSensor SystemController Completing Installation of Return Air Smoke Sensor Smoke Detector LocationsFiop Smoke Detector Wiring and Response Return Air Sensor Operating PositionSensor and Controller Tests Sensor Alarm Test Controller Alarm TestDirty Controller Test Dirty Sensor TestDetector Cleaning Remote Test/Reset Station Dirty Sensor TestCleaning the Smoke Detector Changing the Dirt Sensor TestIndicators Alarm StateDetector Indicators Control or Indicator DescriptionTroubleshooting Protective DevicesElectric Heaters Relief DeviceControl Circuit Condenser Fan Motor ProtectionCompleting Heater Installation Typical Single Point InstallationPremierlinkt Control PremierLink ControllerPremierLink Wiring Schematic 55 Space Temperature Sensor Wiring Temp ResistanceOutdoor AIR Return AIR Temperature Enthalpy SensorPremierLink Sensor Usage Space Sensor Mode Thermostat ModeField Connection Input Signal TB1 Terminal Field Connection Input SignalLctb Outside and Return Air Enthalpy Sensor Wiring Indoor CO2 Sensor 33ZCSENCO2 Connec TionsCCN BUS Wire CCN Plug PIN Color Number Recommended CablesColor Code Recommendations ManufacturerEconomizer Systems PremierLink CCN Bus ConnectionsInputs Outputs RUNSupply Air Temperature SAT Sensor EconoMi$erOutdoor Air Lockout Sensor EconoMi$er IV Control ModesDifferential Dry Bulb Control Outdoor Enthalpy ChangeoverEnthalpy Changeover Setpoints Indoor Air Quality IAQ Sensor InputExhaust Setpoint Adjustment Minimum Position ControlDamper Movement ThermostatsEconoMi$er IV Sensor Usage CO2 Sensor ConfigurationDemand Control Ventilation DCV DCV Demand Controlled Ventilation and Power Exhaust EconoMi$er IV PreparationDifferential Enthalpy Single EnthalpyPRE-START-UP Wiring DiagramsEconoMi$er IV Troubleshooting Completion START-UP, General START-UP, Premierlink ControlsMemory Reset Perform System Check-OutInitial Operation and Test Operating Sequence, Base Unit ControlsOperating Sequence, PremierLink Control 50TC Available Cooling Stages Number Stages EconomizerOAT ≤ SPT 50TC 50TC Linkage Modes Loadshed Command Gas and Electric Heat UnitsFastener Torque Values 50TC Typical Unit Wiring diagram Power A06 Torque Values50TC Unit Wiring Diagram Control A06 Appendix I. Model Number Significance Model Number NomenclatureSerial Number Format Position Number Typical DesignatesAppendix II. Physical Data Physical Data Cooling TonsAppendix III. FAN Performance General Fan Performance NotesCFM RPM BHP Ton Horizontal SupplyTon Vertical Supply Standard Static Option 5541170 1165 12251215 120650TC**05 Phase Ton Horizontal Supply 724 765Phase Ton Horizontal Supply 822 927 1018 872 973 1061923 1019 974 1067Pulley Adjustment Unit MOTOR/DRIVE Motor Pulley Turns Open ComboAppendix IV. Electrical Data Appendix IV. Electrical Data FLAMCA/MOCP Determination no C.O. or Unpwrd C.O MCA/MOCP Determination no C.O. or Unpwrd C.O. 78/89152 159 Appendix V. Wiring Diagram List Wiring DiagramsAppendix VI. Motormaster Sensor Locations 50TC*A04 Outdoor CircuitingAppendix VI. cont Motormaster Sensor Locations Catalog No 50TC---1SM Remove and Store in Job File START-UP ChecklistPressures Cooling Mode

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.
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