Carrier 48TC*D08 appendix PremierLink Filter Switch Connection

Page 43

Refer to the Rooftop PremierLink Installation, Start-Up, and Configuration Instructions (Form 33CS-58SI), PremierLink Installation, Start-up, and Configuration Instructions, for detailed configuration information.

Smoke Detector/Fire Shutdown (FSD) — This function is available only when PremierLink is configured for (Space) Sensor Mode. The unit is factory-wired for PremierLink FSD operation when PremierLink is factory-installed.

On 48TC units equipped with factory-installed Smoke Detector(s), the smoke detector controller implements the unit shutdown through its NC contact set connected to the unit’s LCTB input. The FSD function is initiated via the smoke detector’s Alarm NO contact set. The PremierLink communicates the smoke detector’s tripped status to the CCN building control. See Fig. 25 for unit smoke detector wiring.

Alarm state is reset when the smoke detector alarm condition is cleared and reset at the smoke detector in the unit.

Filter Status Switch — This function is available only when PremierLink is configured for (Space) Sensor Mode.

PremierLink control can monitor return filter status in two ways: By monitoring a field-supplied/installed filter pressure switch or via supply fan runtime hours.

Using switch input: Install the dirty filter pressure switch according to switch manufacturer’s instructions, to measure pressure drop across the unit’s return filters. Connect one side of the switch’s NO contact set to LCTB’s THERMOSTAT-R terminal. Connect the other side of the NO contact set to TB1-10. Setpoint for Dirty Filter is set at the switch. See Fig. 55.

Filter Switch (NO, close on rising pressure (high drop))

LCTB

Thermostat

R

TB1PL

10 J4-4

C08216

Fig. 55 - PremierLink Filter Switch Connection

When the filter switch’s NO contact set closes as filter pressure drop increases (indicating dirt-laden filters), the input signal to PremierLink causes the filter status point to read “DIRTY”.

Using Filter Timer Hours: Refer to the Rooftop PremierLink Installation, Start-Up, and Configuration Instructions (Form 33CS-58SI) for instructions on using the PremierLink Configuration screens and on unit alarm sequence.

Supply Fan Status Switch — The PremierLink control can monitor supply fan operation through a field-supplied/installed differential pressure switch. This sequence will prevent (or interrupt) operation of unit cooling, heating and economizer functions until the pressure switch contacts are closed indicating proper supply fan operation.

Install the differential pressure switch in the supply fan section according to switch manufacturer’s instructions. Arrange the switch contact to be open on no flow and to close as pressure rises indicating fan operation.

Connect one side of the switch’s NO contact set to LCTB’s THERMOSTAT-R terminal. Connect the other side of the NO contact set to TB1-8. Setpoint for Supply Fan Status is set at the switch. See Fig. 56.

Fan (Pressure) Switch (NO, close on rise in pressure)

LCTB

Thermostat

R

TB1PL

8 J4-6

C08118

Fig. 56 - PremierLink Wiring Fan Pressure Switch

Connection

Remote Occupied Switch — The PremierLink control permits a remote timeclock to override the control’s on-board occupancy schedule and place the unit into Occupied mode. This function may also provide a “Door Switch” time delay function that will terminate cooling and heating functions after a 2-20 minute delay.

Connect one side of the NO contact set on the timeclock to LCTB’s THERMOSTAT-R terminal. Connect the other side of the timeclock contact to the unit’s TB1-2 terminal. See Fig. 57.

Remote Occupied

 

LCTB

 

 

Thermostat

 

 

 

 

 

 

Time Clock

 

 

 

R

 

 

 

 

TB1

PL

 

 

 

 

2 J4-12

C08214

Fig. 57 - PremierLink Wiring Remote Occupied

Refer to the Rooftop PremierLink Installation, Start-Up, and Configuration Instructions (Form 33CS-58SI) for additional information on configuring the PremierLink control for Door Switch timer function.

Power Exhaust (output) - Connect the accessory Power Exhaust contactor coils(s) per Fig. 58.

48TC

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Contents Safety Considerations Table of ContentsGeneral Unit Arrangement and AccessWhat to do if you smell gas Seasonal Maintenance Routine MaintenanceSupply Fan Belt-Drive Supply FAN Blower SectionManual Outside Air Hood Screen Supply-Fan Pulley Adjustment Bearings Adjustable-Pitch Pulley on MotorCondenser Coil Coil Maintenance and Cleaning RecommendationPeriodic Clean Water Rinse CoolingRoutine Cleaning of Evaporator Coil Sufaces Routine Cleaning of Novation Condenser Coil SurfacesPuronr R-410A Refrigerant Refrigerant System Pressure Access PortsRefrigerant Charge Seatcore Cooling Charging Charts D08 Cooling Charging ChartsCooling Charging Charts D12 Cooling Charging Charts D14 Circuit a Cooling Charging Charts D14 Circuit B Problem Cause Remedy Cooling Service AnalysisCompressors Condenser-Fan Adjustment D08-D12 sizeCondenser-Fan Adjustment D14 size Troubleshooting Cooling SystemDuty Cycle Non-Powered TypeUnit-Powered Type Convenience OutletsSmoke Detectors Typical Supply Air Smoke Detector Sensor Location Smoke Detector LocationsFiop Smoke Detector Wiring and Response Completing Installation of Return Air Smoke SensorSensor and Controller Tests Sensor Alarm TestSensor Alarm Test Procedure Controller Alarm TestTo Configure the Dirty Sensor Test Operation Controller Alarm Test ProcedureDirty Controller Test Procedure Dirty Sensor Test ProcedureDirty Sensor Test Using an SD-TRK4 Detector CleaningSD-TRK4 Remote Alarm Test Procedure Remote Test/Reset Station Dirty Sensor TestTroubleshooting Compressor Protection Protective DevicesControl Circuit GAS Heating SystemFuel Types and Pressures Combustion-Air Blower Flue Gas PassagewaysMain Burners Burners and IgnitersCheck Unit Operation and Make Necessary Adjustments Cleaning and AdjustmentLimit Switch LED Indication Error Code Description LED Error Code DescriptionBurner Ignition Gas Valve Orifice ReplacementOutputs Integrated Gas Control IGC Board IGC ConnectionsElevation Orifice SizesAltitude Compensation Orifice Carrier Drill Drill Size Part NumberProblem Cause Remedy Troubleshooting Heating SystemMinimum Heating Entering Air Temperature Heating Service AnalysisIGC IGC Board LED Alarm CodesRepairing Novation Condenser Tube Leaks Condenser Coil ServiceReplacing Novation Condenser Coil PREMIERLINKt Control Typical PremierLinkt System Control Wiring Diagram Temp Resistance 55 Space Temperature Sensor WiringTB1 Terminal Field Connection Input Signal Space Sensor ModePremierLink Sensor Usage 56 Internal Connections Thermostat ModeLctb Indoor CO2 Sensor 33ZCSENCO2 Connections PremierLink Filter Switch Connection Color Code Recommendations Signal Type CCN BUS Wire CCN Plug PIN Color NumberRTU-MP Control System Recommended CablesRTU-MP Multi-Protocol Control Board Typical RTU-MP System Control Wiring Diagram Type of I/O Connection PIN Name Numbers Inputs Configurable InputsRTU-MP Controller Inputs and Outputs Point NameRTU-MP T-55 Sensor Connections Space Temperature SPT SensorsRTU-MP / Indoor CO2 Sensor 33ZCSENCO2 Connections Power Exhaust output Connecting Discrete InputsCommunication Wiring Protocols RTU-MP Troubleshooting LEDs BACview6 Handheld ConnectionsTroubleshooting Alarms BACnet MS/TP AlarmsModule Status Report Modstat Example Code Name Meaning Basic Protocol TroubleshootingModbus Manufacture DateEconoMi$er IV Component Locations ECONOMI$ER SystemsEconoMi$er IV Wiring EconoMi$er IV Input/Output Logic EconoMi$erInputs Outputs Outdoor Dry Bulb Changeover Supply Air Temperature SAT SensorOutdoor Air Lockout Sensor EconoMi$er IV Control ModesOutdoor Enthalpy Changeover Differential Dry Bulb ControlIndoor Air Quality IAQ Sensor Input Exhaust Setpoint AdjustmentMinimum Position Control Thermostats Damper MovementDemand Control Ventilation DCV CO2 Sensor Standard Settings CO2 Sensor ConfigurationAnalog CO2 Differential Enthalpy DCV Demand Controlled Ventilation and Power ExhaustEconoMi$er IV Sensor Usage EconoMi$er IV PreparationSupply-Air Sensor Input Wiring DiagramsEconoMi$er IV Troubleshooting Completion DCV Minimum and Maximum Position48TC Typical Unit Wiring Diagram Power D08, 208/230-3-60 48TC Typical Unit Wiring Diagram Control D08, 208/230-3-60 Gas Piping PRE-START-UPSTART-UP, General Unit PreparationOutdoor-Air Inlet Screens Internal WiringRefrigerant Service Ports Return-Air FiltersPerform System Check-Out Field Service TestSTART-UP, RTU-MP Control Ventilation Continuous FanConfiguration Heating Lockout Temp Cooling/Econ SAT Low SetptCooling Lockout Temp Heating Heating SAT High SetptIAQ High Reference @ 20mA Power Exhaust SetptT55/56 Override Duration IAQ Low Reference @ 4mAOperating Sequences PremierLinkt Control Supplemental Controls48TC 48TC Number Stages Economizer Available Cooling Stages48TC 48TC Linkage Modes Rooftop Mode Value Linkage ModeScheduling Loadshed Command Gas and Electric Heat UnitsAlways Occupied Default Occupancy RTU-MP Sequence of OperationIndoor Fan BACnet ScheduleBAS On/Off DI On/OffIndoor Air Quality Power ExhaustFastener Torque Values EconomizerTorque Values Position Number Typical Designates Appendix I. Model Number SignificanceModel Number Nomenclature Serial Number FormatPhysical Data Appendix II. Physical Data12.5TONS Natural Gas Heat, Liquid Propane Heat Heat Anticipator Setting AmpsPhysical Data Heating 12.5TONS 48TC**08 48TC**12 48TC**14 Gas ConnectionCFM RPM BHP Appendix III. FAN Performance579 FAN PerformanceRPM BHP 48TC**14Unit MOTOR/DRIVE Motor Pulley Turns Open Combo Pulley AdjustmentElectrical Information Type DISC. Size Unit Combustion PowerMCA/MOCP Determination no C.O. or Unpwrd C.O NOM IFM FAN Motor Exhaust No P.EWiring Diagrams Appendix IV. Wiring Diagram ListSize Voltage Control Power Catalog No 48TC-3SM Appendix V. Motormaster Sensor LocationsPreliminary Information Unit START-UP Checklist
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