Carrier 50TC installation instructions RTU-MP control system, RTU-MP Multi-Protocol Control Board

Page 27

RTU-MP control system

The RTU-MP controller, see Fig. 45, provides expanded stand-alone operation of the HVAC system plus connection and control through communication with several Building Automation Systems (BAS) through popular third-party network systems. The available network systems are BACnet MP/TP, Modbus and Johnson J2. Communication with LonWorks is also possible by adding an accessory interface card to the RTU-MP. Selection of the communication protocol and baud rate are made at on-board DIP switches.

The RTU-MP control is factory-mounted in the 50TC unit’s main control box, to the left of the CTB. See Fig. 46. Factory wiring is completed through harnesses connected to the CTB. Field connections for RTU-MP sensors will be made at the Phoenix connectors on the RTU-MP board. The factory-installed RTU-MP control includes the supply-air temperature (SAT) sensor. The outdoor air temperature (OAT) sensor is included in the FIOP/accessory EconoMi$er2 package.

Refer to Table 9, RTU-MP Controller Inputs and Outputs for locations of all connections to the RTU-MP board.

50TC

C07129

Fig. 45 - RTU-MP Multi-Protocol Control Board

CTB

RTU-MP Board

C08585

Fig. 46 - 50TC Control Box Component Locations

27

Image 27
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 Roof mount Plan for Unit LocationPlan for Sequence of Unit Installation Inspect unitProvide Unit Support Roof Curb Details 07 Size Units Roof Curb Details 08 12 Size Units Unit Leveling Tolerances Field Fabricate DuctworkRig and Place Unit Convert to Horizontal and Connect Ductwork when requiredInstall Outside Air Hood Economizer Hood Removal and Setup Factory OptionTwo Position Damper Hood Removal and Setup Factory OptionEconomizer Hood and Two-Position Hood Make Electrical Connections Install External Condensate Trap and LineUnits with Factory-Installed Disconnect All unitsThru-Base Connections Thermostat Field Control WiringHeat Anticipator Settings Units without Thru-Base ConnectionsHeater Model Number Electric HeatersAccessory Electric Heater Control Connections PremierLink Controller PremierLinkt Factory-OptionPremierLink Wiring Schematic 33ZCT55SPT CRTEMPSN001A00 PremierLink Sensor UsageThermostat Mode Space Sensor Mode55 Space Temperature Sensor Wiring Economizer controls Enthalpy Switch HH57AC077 ConnectionsIndoor CO2 Sensor 33ZCSENCO2 Connections PremierLink Wiring Fan Pressure Switch Connection PremierLink Filter Switch ConnectionPremierLink CCN Bus Connections Color Code RecommendationsRTU-MP Multi-Protocol Control Board RTU-MP control systemRTU-MP System Control Wiring Diagram Type of I/O Connection PIN Name Numbers Inputs RTU-MP Controller Inputs and OutputsRTU-MP T-55 Sensor Connections Space Temperature SPT SensorsRTU-MP / Indoor CO2 Sensor 33ZCSENCO2 Connections Connecting Discrete Inputs Filter StatusCommunication Wiring Protocols General Fan StatusRemote Occupancy RTU-MP Troubleshooting Communication LEDs Local AccessLEDs on the RTU-MP show the status of certain functions LEDsPre-Start and Start-Up Adjust Factory-Installed OptionsInstall Accessories EconoMi$er IV Occupancy SwitchSTD Unit Wire/MOCP Sizing Data17.5 108 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.

One of the standout features of the Carrier 50TC is its advanced performance technologies. The unit employs a high-efficiency scroll compressor that enhances refrigerant management, allowing for exceptional cooling capacities while minimizing energy consumption. Additionally, the unit is equipped with variable speed fans, which further contribute to its operational efficiency. These fans adjust their speed according to the cooling demands, allowing the system to consume energy only when necessary.

The Carrier 50TC also incorporates an innovative control system that provides intelligent diagnostics and an array of customizable settings. This system helps in monitoring the unit's performance, ensuring maximum efficiency and early detection of potential maintenance issues. Users can easily integrate the unit within their existing building management systems, enhancing overall operational control and streamlining HVAC management procedures.

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.

Moreover, the Carrier 50TC is designed with eco-friendliness in mind. It utilizes environmentally friendly refrigerants, aligning with modern regulations aimed at reducing the impact of HVAC systems on the environment. By choosing the Carrier 50TC, businesses can contribute to sustainability efforts while enjoying effective temperature control.

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.