Carrier 50TC installation instructions Space Temperature Sensor Wiring

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1

2

3

4

5

6

RED(+)

 

 

 

 

 

 

WHT(GND)

CCN COM

 

 

 

 

 

 

BLK(-)

 

 

 

 

 

 

 

 

 

 

SEN

 

 

 

 

 

SW1

 

 

 

 

 

 

 

 

 

 

 

BRN (GND)

SENSOR WIRING

 

 

 

 

 

BLU (SPT)

 

 

 

 

 

 

 

 

 

50TC

 

 

 

 

 

 

C08201

 

 

 

 

 

 

Fig. 30 - T-55 Space Temperature Sensor Wiring

 

 

Connect T-55 - See Fig. 30 for typical T-55 internal

 

connections. Connect the T-55 SEN terminals to TB1

 

terminals 1 and 3 (see Fig. 31).

 

 

 

 

TB1

PL

 

SEN

1

 

 

 

J6-7

 

 

 

 

 

SEN

3

 

 

 

J6-6

 

 

 

 

C08212

Fig. 31 - PremierLink T-55 Sensor

Connect T-56 - See Fig. 32 for T-56 internal connections. Install a jumper between SEN and SET terminals as illustrated. Connect T-56 terminals to TB1 terminals 1, 3 and 5 (see Fig. 33).

1

2

3

4

5

6

RED(+)

 

 

 

 

 

 

WHT(GND)

CCN COM

 

 

 

 

 

 

BLK(-)

 

 

 

 

 

 

 

 

 

 

SEN

 

SET

 

 

 

SW1

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(T56)

 

 

 

 

 

 

BRN (GND)

SENSOR WIRING

 

 

 

 

 

BLU (SPT)

 

 

 

 

 

 

 

 

JUMPER

 

 

 

 

 

 

 

TERMINALS

 

 

 

 

 

 

 

AS SHOWN

Cool Warm

C08202

Fig. 32 - T-56 Internal Connections

 

TB1

PL

SEN

1

J6-7

 

TB1

PL

SEN

3

J6-6

Jumper

SET

SET 5 J6-5

C08213

Fig. 33 - PremierLink T-56 Sensor

Connect Thermostat — A 7-wire thermostat connection requires a 24-v power source and a common connection. Use the R and C terminals on the CTB’s THERMOSTAT connection strip for these. Connect the thermostat’s Y1, Y2, W1, W2 and G terminals to PremierLink TB1 as shown in Fig. 34.

If the 50TC unit is equipped with factory-installed smoke detector(s), disconnect the factory BLU lead at TB1-6 (Y2) before connecting the thermostat. Identify the BLU lead originating at CTB-DDC-1; disconnect at TB1-6 and tape off. Confirm that the second BLU lead at TB1-6 remains connected to PremierLink J4-8.

SPACECTB

THERMOSTAT THERMOSTAT

R R

TB1PL

G 2 J4-12

Y1 4 J4-10

Y2 6 J4-8

W1 8 J4-6

W2 10 J4-4

C

C

CTB

THERMOSTAT

C08119

Fig. 34 - Space Thermostat Connections

If the 50TC unit has an economizer system and free-cooling operation is required, a sensor representing Return Air Temperature must also be connected (field-supplied and installed). This sensor may be a T-55 Space Sensor (see Fig. 29) installed in the space or in the return duct, or it may be sensor PNO 33ZCSENSAT, installed in the return duct. Connect this sensor to TB1-1 and TB1-3 per Fig. 31.

Configure the unit for Thermostat Mode — Connect to the CCN bus using a CCN service tool and navigate to PremierLink Configuration screen for Operating Mode. Default setting is Sensor Mode (value 1). Change the value to 0 to reconfigure the controller for Thermostat Mode.

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Contents Installation Instructions 50TC Unit Dimensional Drawing 07 Size Units Unit Dimensional Drawing 07 Size Unit Unit Dimensional Drawing 08, 09 and 12 Size Units Plan for Unit Location Roof mountInspect unit Plan for Sequence of Unit InstallationProvide Unit Support Roof Curb Details 07 Size Units Roof Curb Details 08 12 Size Units Field Fabricate Ductwork Unit Leveling TolerancesEconomizer Hood Removal and Setup Factory Option Convert to Horizontal and Connect Ductwork when requiredInstall Outside Air Hood Rig and Place UnitFactory Option Two Position Damper Hood Removal and SetupEconomizer Hood and Two-Position Hood Install External Condensate Trap and Line Make Electrical ConnectionsAll units Units with Factory-Installed DisconnectThru-Base Connections Units without Thru-Base Connections Field Control WiringHeat Anticipator Settings ThermostatElectric Heaters Heater Model NumberAccessory Electric Heater Control Connections PremierLinkt Factory-Option PremierLink ControllerPremierLink Wiring Schematic PremierLink Sensor Usage 33ZCT55SPT CRTEMPSN001A00Space Sensor Mode Thermostat Mode55 Space Temperature Sensor Wiring Enthalpy Switch HH57AC077 Connections Economizer controlsIndoor CO2 Sensor 33ZCSENCO2 Connections PremierLink Filter Switch Connection PremierLink Wiring Fan Pressure Switch ConnectionColor Code Recommendations PremierLink CCN Bus ConnectionsRTU-MP control system RTU-MP Multi-Protocol Control BoardRTU-MP System Control Wiring Diagram RTU-MP Controller Inputs and Outputs Type of I/O Connection PIN Name Numbers InputsSpace Temperature SPT Sensors RTU-MP T-55 Sensor ConnectionsConnecting Discrete Inputs Filter Status RTU-MP / Indoor CO2 Sensor 33ZCSENCO2 ConnectionsFan Status Communication Wiring Protocols GeneralRemote Occupancy Local Access RTU-MP Troubleshooting Communication LEDsLEDs LEDs on the RTU-MP show the status of certain functionsEconoMi$er IV Occupancy Switch Adjust Factory-Installed OptionsInstall Accessories Pre-Start and Start-UpUnit Wire/MOCP Sizing Data STD17.5 108 Disc 50TC Catalog No 50TC---C02SI

50TC specifications

The Carrier 50TC is a cutting-edge commercial rooftop unit designed for optimal performance and reliability in a variety of HVAC applications. This unit is particularly well-suited for small to medium-sized facilities that require efficient heating, ventilation, and air conditioning solutions. A hallmark of the Carrier 50TC is its impressive energy efficiency, enabling users to significantly lower their operational costs while maintaining a comfortable indoor environment.

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Durability and ease of maintenance are key characteristics of the Carrier 50TC, designed specifically to withstand harsh weather conditions while providing long-lasting performance. The unit's robust construction includes a powder-coated cabinet, which not only improves its aesthetic appeal but also protects against corrosion, ensuring longevity.

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In summary, the Carrier 50TC combines energy efficiency, advanced technologies, and robust design to deliver a reliable HVAC solution for commercial applications. With its smart control system, high-efficiency components, and eco-friendly operation, the Carrier 50TC sets a standard for performance and sustainability in the commercial heating and cooling market.
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