Carrier 48TC**16 installation instructions Unit Powered Convenience Outlet Wiring

Page 17

Test the GFCI receptacle by pressing the TEST button on the face of the receptacle to trip and open the receptacle. Check for proper grounding wires and power line phasing if the GFCI receptacle does not trip as required. Press the RESET button to clear the tripped condition.

 

 

 

C08283

 

 

 

 

UNIT

CONNECT

PRIMARY

TRANSFORMER

VOLTAGE

AS

CONNECTIONS

TERMINALS

 

 

 

 

208,

240

L1: RED +YEL

H1 + H3

230

L2: BLU + GRA

H2 + H4

 

 

 

 

 

 

 

L1: RED

H1

460

480

Splice BLU + YEL

H2 + H3

 

 

L2: GRA

H4

 

 

 

 

575

600

L1: RED

H1

L2: GRA

H2

 

 

 

 

 

 

Fig. 34 - Unit Powered Convenience Outlet Wiring

Fuse on power type: The factory fuse is a Bussman “Fusetron” T-15, non-renewable screw-in (Edison base) type plug fuse.

!WARNING

ELECTRICAL OPERATION HAZARD

Failure to follow this warning could result in personal injury or death.

Using unit-mounted convenience outlets: Units with unit-mounded convenience outlet circuits will often require that two disconnects be opened to de-energize all power to the unit. Treat all units as electrically energized until the convenience outlet power is also checked and de-energization is confirmed. Observe National Electrical Code Article 210, Branch Circuits, for use of convenience outlets.

Installing Weatherproof Cover: A weatherproof while-in-use cover for the factory-installed convenience outlets is now required by UL standards. This cover cannot be factory-mounted due its depth; it must be installed at unit installation. For shipment, the convenience outlet is covered with a blank cover plate.

The weatherproof cover kit is shipped in the unit’s control box. The kit includes the hinged cover, a backing plate and gasket.

DISCONNECT ALL POWER TO UNIT AND CONVENIENCE OUTLET. LOCK-OUT AND TAG-OUT ALL POWER.

Remove the blank cover plate at the convenience outlet; discard the blank cover.

Loosen the two screws at the GFCI duplex outlet, until approximately 1/2-in (13 mm) under screw heads are exposed. Press the gasket over the screw heads. Slip the backing plate over the screw heads at the keyhole slots and align with the gasket; tighten the two screws until snug (do not over-tighten).

Mount the weatherproof cover to the backing plate as shown in Fig. 35. Remove two slot fillers in the bottom of the cover to permit service tool cords to exit the cover. Check for full closing and latching.

COVER – WHILE-IN-USE

RECEPTACLE

WEATHERPROOF

NOT INCLUDED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BASE PLATE FOR

GFCI RECEPTACLE

C09022

Fig. 35 - Weatherproof Cover Installation

48TC**16

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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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