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Carrier 50TC installation instructions RTU-MPcontrol system, RTU-MP Multi-ProtocolControl Board

Models: 50TC

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RTU-MP control system

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

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Carrier RTU-MPcontrol system, RTU-MP Multi-ProtocolControl Board, 50TC Control Box Component Locations

Contents

50TC Single Package Rooftop, 50Hz Cooling Only TABLE OF CONTENTSSAFETY CONSIDERATIONS Installation InstructionsPERSONAL INJURY AND ENVIRONMENTAL HAZARD UNIT OPERATION AND SAFETY HAZARD50TC ELECTRICAL SHOCK HAZARDHorizontal Connections / Economizer Fig. 1 - Unit Dimensional Drawing - 07 Size Units50TC Vertical Connections / EconomizerC09448 50TCC09450 50TCVertical Connections / Economizer Horizontal Connections / EconomizerRoof mount INSTALLATIONFig. 3 - Service Clearance Dimensional Drawing Step 1 - Plan for Unit LocationPad-mountedinstallation Step 2 - Plan for Sequence of Unit InstallationTable 1 - Operating Weights Curb-mountedinstallation50TC Fig. 4 - Roof Curb Details - 07 Size UnitsACCESSORY ACCESSORYC09453 Fig. 5 - Roof Curb Details - 08 - 12 Size Units50TC 50TC-*08DETAIL A Step 5 - Field Fabricate DuctworkFig. 6 - Unit Leveling Tolerances Fig. 7 - Rigging DetailsUNIT DAMAGE HAZARD Step 8 - Install Outside Air HoodFig. 9 - Typical Access Panel Locations Step 6 - Rig and Place UnitFactory Option Two Position Damper Hood Removal and SetupFig. 12 - Indoor Coil Access Panel Relocation Fig. 10 - Economizer Parts, Shipping LocationFig. 16 - Condensate Drain Piping Details Fig. 14 - Economizer Filter InstallationStep 10 - Make Electrical Connections Fig. 15 - Condensate Drain Pan Side ViewFig. 18 - Power Wiring Connections Fig. 17 - Disconnect Switch and UnitUnits Without Factory-InstalledDisconnect Units with Factory-InstalledDisconnectAll Units Field Control WiringHeat Anticipator Settings Units without Thru-BaseConnectionsTable 3 - Heater Model Number Fig. 22 - Typical Access Panel Location 3-6TonFig. 21 - Field Control Wiring Raceway Electric HeatersConnections Fig. 24 - Typical Module InstallationFig. 25 - Typical Single Point Installation Fig. 26 - Accessory Electric Heater ControlPremierLinkt Factory-Option Fig. 27 - PremierLink Controller50TC Fig. 29 - PremierLink Wiring Schematic 50TCC09460 50TC Table 4 - PremierLink Sensor UsageFIELD CONNECTION Table 5 - Space Sensor ModeTable 6 - Thermostat Mode INPUT SIGNALFig. 33 - PremierLink T-56Sensor Fig. 30 - T-55Space Temperature Sensor WiringFig. 31 - PremierLink T-55Sensor Fig. 32 - T-56Internal ConnectionsEnthalpy Fig. 39 - Outdoor Air Quality Sensor Cover 33ZCSENCO2 - Typical Wiring DiagramFig. 37 - Indoor/Outdoor Air Quality CO2 Sensor Fig. 38 - Indoor CO2 Sensor 33ZCSENCO2Connection Fig. 41 - PremierLink Filter Switch ConnectionFig. 42 - PremierLink Wiring Fan Pressure Switch Fig. 43 - PremierLink Wiring Remote OccupiedTable 8 - Color Code Recommendations Fig. 44 - PremierLink CCN Bus Connections50TC 50TC RTU-MPcontrol systemFig. 45 - RTU-MP Multi-ProtocolControl Board Fig. 46 - 50TC Control Box Component LocationsFig. 47 - RTU-MPSystem Control Wiring Diagram 50TCC09461 50TC Table 9 - RTU-MPController Inputs and OutputsFig. 49 - RTU-MP T-56Sensor Connections Space Temperature SPT SensorsFig. 50 - Space Temperature Sensor Typical Wiring Fig. 48 - RTU-MP T-55Sensor ConnectionsFig. 52 - RTU-MP /Outdoor CO2 Sensor Connecting Discrete Inputs Filter StatusFig. 51 - RTU-MP /Indoor CO2 Sensor 33ZCSENCO2 ConnectionsRemote Occupancy Communication Wiring - Protocols GeneralFig. 53 - RTU-MPSW3 Dip Switch Settings Fan Status50TC Local AccessRTU-MPTroubleshooting Communication LEDs Fig. 54 - BACview6 Handheld Connections50TC Table 10 - LEDsEconoMi$er IV Occupancy Switch Step 11 - Adjust Factory-InstalledOptionsStep 12 - Install Accessories Fig. 55 - EconoMi$ert IV WiringTable 11 - Unit Wire/MOCP Sizing Data NOTE See page 38 for table legend and notes50TC 50TC Table 11 - Unit Wire/MOCP Sizing Data cont50TC Legend for Table50TC Replaces NEW 50TCCatalog No 50TC---C02SI Edition Date 11/09