Carrier 48TC**16 installation instructions Unit Performance Hazard, To wire the sensor

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IAQ Sensor

 

TB3

PL

SEN

13

J5-2

TB3

COM11J5-3

MOUNTING HOLES

24 VAC

C10285

Fig. 57 - Outdoor CO2 Sensor Connections

Space Relative Humidity Sensor or Humidistat Connections —

Space Relative Humidity Sensor connections: The accessory space relative humidity sensor (33ZCSENSRH-01) is installed on an interior wall to measure the relative humidity of the air within the occupied space.

Io Vin Gnd Vo

SW2

 

 

 

 

 

 

 

 

 

 

 

6

5

4

3

2

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WIRING OPENING

The use of a standard 2 X 4 inch electrical box to accommodate the wiring is recommended for installation. The sensor can be mounted directly on the wall, if acceptable by local codes.

!CAUTION

UNIT DAMAGE HAZARD

Failure to follow this caution may result in permanent damage to the sensor.

DO NOT clean or touch the sensing element with chemical solvents as they can permanently damage the sensor.

!CAUTION

UNIT PERFORMANCE HAZARD

Failure to follow this caution will result in inaccurate sensor readings.

DO NOT mount the sensor in drafty areas such as near heating or air-conditioning ducts, open windows, fans, or over heat sources such as baseboard heaters, radiators, or wall-mounted dimmers. Sensors mounted in those areas will produce inaccurate readings.

If the sensor is installed directly on a wall service, install the humidity sensor using 2 screws and 2 hollow wall anchors (field supplied). Do not over tighten screws. See Fig. 58.

The sensor must be mounted vertically on the wall. The Carrier logo should be orientated correctly when the sensor is properly mounted.

Avoid corner locations. Allow at least 4 ft between the sensor and any corner. Airflow near corners tends to be reduced, resulting in erratic sensor readings. The sensor should be vertically mounted approximately 5 ft up from the floor, beside the space temperature sensor.

For wiring distances up to 500 feet, use a 3-conductor, 18 or 20 AWG cable. ACCN communication cable can be used, although the shield is not required. The shield must be removed from the sensor end of the cable if this cable is used. See Fig. 59 for wiring details.

 

 

 

 

C11084

48TC**16

 

 

 

 

Fig. 58 - Space Relative Humidity Sensor Installation

 

TB3-7

 

 

 

BLACK

 

 

TB3-13

 

 

 

 

 

RED

 

Io Vin Gnd Vo

C11085

Fig. 59 - Space Relative Humidity Sensor Connection

The power for the sensor is provided by the PremierLink control on terminal J5-4 (+33 to +35vdc).

To wire the sensor:

1.At the sensor, remove 4 inches of the jacket from the cable. Strip 1/4 inch of insulation from each conduct- or. Route the cable through the wire clearance open- ing in the center of the sensor. See Fig. 58.

2.Connect a field-supplied BLACK wire to the sensor screw terminal marked Vin.

3.Connect a field-supplied RED wire into the sensor screw terminal marked Io.

4.Connect the field-supplied RED wire from the sensor to TB3-13.

5.Connect the field-supplied BLACK wire from the sensor to TB3-7.

Humidistat connections: A humidistat can not be directly connected to the PremierLink controller. Follow the instructions on pages 20 & 21 to connect a humidistat or a thermostat as an electromechanical device.

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Contents Installation Instructions FIRE, Explosion Hazard Unit Operation and Safety HazardElectrical Shock Hazard Personal Injury and Environmental HazardUnit Dimensional Drawing 16 Size Unit Plan for Unit Location Service Clearance Dimensional DrawingProvide Unit Support Plan for Sequence of Unit InstallationInspect Unit Roof Curb Details Rig and Place Unit Field Fabricate DuctworkProperty Damage Hazard Unit Damage HazardPositioning on Curb Convert to Horizontal and Connect Ductwork when requiredTwo Position Damper Hood Removal and Setup Factory Option Install Outside Air HoodEconomizer Hood Removal and Setup Factory Option Economizer Hood and Two-Position Hood Install Flue HoodEquipment Damage Hazard Install Gas PipingNatural Gas Supply Line Pressure Ranges Completing Installation of Thru-the-Base Option Fire or Explosion Hazard Install External Condensate Trap and LineMake Electrical Connections Field Power SupplyUnits with Factory-Installed Disconnect Units Without Factory-Installed DisconnectElectrical Operation Hazard Power Wiring Connections Convenience OutletsUnit Powered Convenience Outlet Wiring Factory-Option Thru-Base Connections Electrical Connections Field Control WiringUnits without Thru-Base Connections ThermostatTypical Low-Voltage Control Connections Unit without Thru-Base Connection KitHumidi-MiZer Space RH Controller Humidi-MiZerRControl ConnectionsTo connect the Carrier humidistat HL38MG029 To connect the Thermidistat device 33CS2PPRH-01OAT RRS Srtn PremierLink Controller PremierLinkt Factory OptionPremierLink Wiring Schematic PremierLink Wiring Schematic with Humidi-MiZerR Field Connections Supply Air Temperature SAT SensorEconoMi$er2 PremierLink Sensor UsageThermostat Mode Space Sensor ModeSpace Sensors Configure the unit for Thermostat ModeIndoor Air Quality CO2 sensor Economizer ControlsUnit Performance Hazard To wire the sensorSupply Fan Status Switch Filter Status SwitchPower Exhaust output Smoke Detector/Fire Shutdown FSDRecommended Cables Connecting CCN Bus Color Code RecommendationsCCN Communication Bus RTU Open Multi-Protocol Control Board RTU Open Control SystemRTU Open System Control Wiring Diagram RTU Open System Control Wiring Diagram with Humidi-MiZerR Type of I/O Connection PIN Name Numbers Dedicated Inputs RTU Open Controller Inputs and OutputsRTU Open T-55 Sensor Connections Space Temperature SPT SensorsRelative Humidity Sensors Space or Duct Mounted Space Relative Humidity Sensor Typical WiringConnecting Discrete Inputs Duct Relative Humidity Sensor Typical WiringGeneral Communication Wiring ProtocolsRTU Open Troubleshooting Local AccessLEDs Outdoor Air Enthalpy Control PNO 33CSENTHSWDifferential Enthalpy Control Return Air Enthalpy SensorSystem Smoke DetectorsController Sensor ModuleSmoke Detector Locations See Completing Installation of Return Air SmokeSupply Air Return Air with EconomizerReturn Air Detector Shipping Position Completing Installation of Return Air Smoke SensorBrkr Unit Wire/Fuse or Hacr Breaker Sizing DataInstall Accessories Adjust Factory-Installed OptionsEconoMi$er IV Occupancy Switch Pre-Start and Start-Up48TC**16 14SI

48TC**16 specifications

The Carrier 48TC**16 is a high-efficiency rooftop packaged unit, designed for commercial heating and cooling applications. This model exemplifies Carrier's commitment to delivering reliable and innovative solutions to the HVAC industry. With cutting-edge technology and robust performance characteristics, the 48TC**16 is ideally suited for a variety of building types.

One of the main features of the Carrier 48TC**16 is its impressive energy efficiency. The unit achieves high SEER (Seasonal Energy Efficiency Ratio) ratings, which translates to lower energy bills and reduced environmental impact. The unit is equipped with a scroll compressor, known for its quiet operation and reliability, ensuring a comfortable indoor environment without disruptive noise.

The 48TC**16 utilizes advanced microprocessor controls that enhance system performance by enabling precise temperature control and various operational modes. This allows users to optimize the system's performance based on specific heating and cooling needs. Additionally, the unit includes enhanced diagnostics, allowing for faster troubleshooting and easier maintenance, thus minimizing downtime and repair costs.

Another notable characteristic of the 48TC**16 is its robust construction. Built to withstand harsh weather conditions, the unit features a galvanized steel cabinet coated with a corrosion-resistant finish, ensuring longevity and durability. It also comes equipped with a variety of factory-installed options, such as economizers and filtration systems, which can further enhance its performance and flexibility.

The Carrier 48TC**16 is designed with sustainability in mind, using environmentally friendly refrigerants. The unit supports the latest refrigerant regulations, helping to reduce the overall carbon footprint of the building it serves.

Installation and service are simplified by the unit's modular design, which allows for easy access to all major components. This design not only streamlines maintenance procedures but also facilitates quick installation, making it an ideal choice for contractors and facility managers alike.

In summary, the Carrier 48TC**16 rooftop packaged unit combines high energy efficiency, advanced controls, robust construction, and eco-friendly features, making it a top choice for commercial heating and cooling needs. Its user-friendly design and reliability ensure optimal performance and comfort for various applications, underscoring Carrier's reputation as a leader in the HVAC industry. Whether for new construction or retrofitting, the 48TC**16 meets the demands of modern buildings while adhering to sustainability practices.
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