Carrier 48TC**16 installation instructions Space Sensor Mode, Thermostat Mode

Page 26

48TC**16

Table 4 – Space Sensor Mode

TB3 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

FSD ---

Fire Shutdown

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

Table 5 – Thermostat Mode

TB3 TERMINAL

FIELD CONNECTION

 

 

1

RAT SEN

 

 

2

G

 

 

3

RAT SEN

 

 

4

Y1

 

 

5

 

 

 

6

Y2

 

 

7

LOOP---PWR

 

 

8

W1

 

 

9

IAQ ---SEN

 

 

10

W2

 

 

11

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

 

 

12

CCN + (RED)

 

 

13

OAQ ---SEN/RH ---SEN

 

 

14

CCN Gnd (WHT)

 

 

15

AUX OUT (Power Exhaust)

 

 

16

CCN --- (BLK)

 

 

INPUT SIGNAL

Analog (10k thermistor)

Discrete, 24VAC

Analog (10k thermistor)

Discrete, 24VAC

Discrete, 24VAC Analog, 24VDC Discrete, 24VAC Analog, 4---20mA Discrete, 24VAC Analog, 4---20mA

Digital, 5VDC

Analog, 4---20mA

Digital, 5VDC

(Output) Discrete 24VAC

Digital, 5VDC

LEGEND:

 

 

 

CCN

---

Carrier Comfort Network (communication bus)

RH

--- Relative Humidity

G

---

Thermostat Fan

W1

--- Thermostat Heat Stage 1

IAQ

---

Indoor Air Quality (CO2)

W2

--- Thermostat Heat Stage 2

OAQ

---

Outdoor Air Quality (CO2)

Y1

--- Thermostat Cool Stage 1

RAT

---

Return Air Temperature

Y2

--- Thermostat Cool Stage 2

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Contents Installation Instructions Electrical Shock Hazard Unit Operation and Safety HazardFIRE, Explosion Hazard Personal Injury and Environmental HazardUnit Dimensional Drawing 16 Size Unit Service Clearance Dimensional Drawing Plan for Unit LocationProvide Unit Support Plan for Sequence of Unit InstallationInspect Unit Roof Curb Details Property Damage Hazard Field Fabricate DuctworkRig and Place Unit Unit Damage HazardConvert to Horizontal and Connect Ductwork when required Positioning on CurbTwo Position Damper Hood Removal and Setup Factory Option Install Outside Air HoodEconomizer Hood Removal and Setup Factory Option Install Flue Hood Economizer Hood and Two-Position HoodEquipment Damage Hazard Install Gas PipingNatural Gas Supply Line Pressure Ranges Completing Installation of Thru-the-Base Option Install External Condensate Trap and Line Fire or Explosion HazardField Power Supply Make Electrical ConnectionsUnits Without Factory-Installed Disconnect Units with Factory-Installed DisconnectPower Wiring Connections Convenience Outlets Electrical Operation HazardUnit Powered Convenience Outlet Wiring Units without Thru-Base Connections Field Control WiringFactory-Option Thru-Base Connections Electrical Connections ThermostatUnit without Thru-Base Connection Kit Typical Low-Voltage Control ConnectionsTo connect the Carrier humidistat HL38MG029 Humidi-MiZerRControl ConnectionsHumidi-MiZer Space RH Controller To connect the Thermidistat device 33CS2PPRH-01OAT RRS Srtn PremierLinkt Factory Option PremierLink ControllerPremierLink Wiring Schematic PremierLink Wiring Schematic with Humidi-MiZerR EconoMi$er2 Supply Air Temperature SAT SensorField Connections PremierLink Sensor UsageSpace Sensor Mode Thermostat ModeConfigure the unit for Thermostat Mode Space SensorsEconomizer Controls Indoor Air Quality CO2 sensorTo wire the sensor Unit Performance HazardPower Exhaust output Filter Status SwitchSupply Fan Status Switch Smoke Detector/Fire Shutdown FSDRecommended Cables Connecting CCN Bus Color Code RecommendationsCCN Communication Bus RTU Open Control System RTU Open Multi-Protocol Control BoardRTU Open System Control Wiring Diagram RTU Open System Control Wiring Diagram with Humidi-MiZerR RTU Open Controller Inputs and Outputs Type of I/O Connection PIN Name Numbers Dedicated InputsSpace Temperature SPT Sensors RTU Open T-55 Sensor ConnectionsSpace Relative Humidity Sensor Typical Wiring Relative Humidity Sensors Space or Duct MountedDuct Relative Humidity Sensor Typical Wiring Connecting Discrete InputsCommunication Wiring Protocols GeneralLocal Access RTU Open TroubleshootingDifferential Enthalpy Control Outdoor Air Enthalpy Control PNO 33CSENTHSWLEDs Return Air Enthalpy SensorController Smoke DetectorsSystem Sensor ModuleSupply Air See Completing Installation of Return Air SmokeSmoke Detector Locations Return Air with EconomizerCompleting Installation of Return Air Smoke Sensor Return Air Detector Shipping PositionUnit Wire/Fuse or Hacr Breaker Sizing Data BrkrEconoMi$er IV Occupancy Switch Adjust Factory-Installed OptionsInstall Accessories 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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