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Carrier 48TC*D08 appendix Integrated Gas Control IGC Board, IGC Connections, Red LED-Status

Models: 48TC*D08

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Red LED-Status

48TC

C08452

Fig. 39 - Integrated Gas Control (IGC) Board

Table 10 – IGC Connections

TERMINAL LABEL	POINT DESCRIPTION	SENSOR LOCATION	TYPE OF I/O	CONNECTION
TERMINAL LABEL	POINT DESCRIPTION	SENSOR LOCATION	TYPE OF I/O	PIN NUMBER
				PIN NUMBER

INPUTS

RT, C	Input power from TRAN 1	control box	24 VAC	—

SS	Speed sensor	gas section	analog input	J1, 1-3

FS, T1	Flame sensor	gas section	switch input	—

W	Heat stage 1	LCTB	24 VAC	J2, 2

RS	Rollout switch	gas section	switch input	J2, 5-6

LS	Limit switch	fan section	switch input	J2, 7-8

CS	Centrifugal switch (not used)	—	switch input	J2, 9-10

OUTPUTS

L1, CM	Induced draft combustion motor	gas section	line VAC

IFO	Indoor fan	control box	relay	J2, 1

GV	Gas valve (heat stage 1)	gas section	relay	J2, 11-12

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Carrier 48TC*D08 appendix Integrated Gas Control IGC Board, IGC Connections, Red LED-Status

Contents

With Puron R---410ARefrigerant TABLE OF CONTENTSSAFETY CONSIDERATIONS Service and Maintenance InstructionsGeneral UNIT ARRANGEMENT AND ACCESSUNIT OPERATION AND SAFETY HAZARD Fig. 1 - Typical Access Panel Locations BackAir Conditioning Routine MaintenanceSeasonal Maintenance Fig. 2 - Typical Access Panel Location FrontSupply Fan Belt-Drive Fig. 3 - Filter InstallationFig. 4 - Screens Installed on Outdoor-AirHood SUPPLY FAN BLOWER SECTION48TC Adjustable-PitchPulley on MotorFig. 6 - Supply-FanPulley Adjustment Bearings Fig. 7 - Tightening Locking Collar MotorCondenser Coil Coil Maintenance and Cleaning RecommendationPeriodic Clean Water Rinse COOLINGPERSONAL INJURY HAZARD Routine Cleaning of Evaporator Coil SufacesPERSONAL INJURY HAZARD PERSONAL INJURY HAZARDRefrigerant Charge Refrigerant System Pressure Access PortsTo Use Cooling Charging Charts PURONR R-410AREFRIGERANTSEATCORE Fig. 9 - CoreMax Access Port Assembly48TC Fig. 10 - Cooling Charging Charts D08 COOLING CHARGING CHARTS48TC C08670 Fig. 11 - Cooling Charging Charts D12COOLING CHARGING CHARTS 48TCC09151 Fig. 12 - Cooling Charging Charts D14 - Circuit ACOOLING CHARGING CHARTS 48TCC09152 Fig. 13 - Cooling Charging Charts D14 - Circuit BCOOLING CHARGING CHARTS 48TC48TC Table 1 - Cooling Service AnalysisFig. 14 - Condenser Fan Adjustment D08-D12 Condenser-FanAdjustment D08-D12sizeCondenser-FanAdjustment D14 size Troubleshooting Cooling SystemCONVENIENCE OUTLETS Non-PoweredTypeUnit-PoweredType Fig. 17 - Powered Convenience Outlet WiringFig. 18 - Controller Assembly MaintenanceFuse On Powered Type Using Unit-MountedConvenience OutletsFig. 21 - Typical Return Air Detector Location Smoke Detector LocationsLocation Fig. 19 - Smoke Detector SensorFig. 24 - Return Air Sensor Operating Position FIOP Smoke Detector Wiring and ResponseFig. 22 - Return Air Sampling Tube Location Fig. 23 - Return Air Detector Shipping PositionController Alarm Test Fig. 25 - Typical Smoke Detector System WiringSensor Alarm Test Sensor Alarm Test ProcedureTo 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-TRK4Remote Alarm Test Procedure Remote Test/Reset Station Dirty Sensor TestFig. 28 - Controller Assembly INDICATORSTroubleshooting Alarm StateHigh Pressure Switch Table 3 – Detector IndicatorsController’s Power LED is Off OvertemperatureFuel Types and Pressures Fig. 30 - Limit Switch LocationGAS HEATING SYSTEM Control Circuit48TC Fig. 31 - LP Low Pressure Switch InstalledFlue Gas Passageways Combustion-AirBlowerEQUIPMENT DAMAGE HAZARD Fig. 33 - Heat Exchanger AssemblyRemoval and Replacement of Gas Train Burners and IgnitersFig. 36 - Unit Control Box/IGC Location Cleaning and AdjustmentLimit Switch Fig. 35 - Burner Tray Details48TC Fig. 37 - Spark AdjustmentTable 9 – LED Error Code Description Burner IgnitionFig. 38 - Gas Valve Orifice Replacement48TC 48TC Fig. 39 - Integrated Gas Control IGC BoardTable 10 - IGC Connections Red LED-StatusTable 12 - Altitude Compensation* Table 11 – Orifice Sizes48TC Fig. 40 - OATL Connections Troubleshooting Heating SystemMinimum Heating Entering Air Temperature Table 13 – Heating Service AnalysisDESCRIPTION Table 14 – IGC Board LED Alarm CodesRESET METHOD 48TCFig. 41 - PremierLinkt Controller CONDENSER COIL SERVICERepairing NOVATION Condenser Tube Leaks Replacing NOVATION Condenser CoilROOF CURB RETURN AIR PREMIERLINKt CONTROLSUPPLY AIR TEMPERATURE SENSOR SUPPLY AIR 48TCC08665 48TCFig. 45 - PremierLink T-55Sensor Fig. 44 - T-55Space Temperature Sensor Wiring48TC Table 17 - Space Sensor Mode Table 16 – PremierLink Sensor Usage48TC Fig. 48 - Space Thermostat Connections Table 18 – Thermostat ModeFig. 46 - T-56Internal Connections Fig. 47 - PremierLink T-56SensorEnthalpy Connections 33ZCSENCO2 - Typical Wiring DiagramFig. 51 - Indoor/Outdoor Air Quality CO2 Sensor Fig. 52 - Indoor CO2 Sensor 33ZCSENCO2Connection Fig. 55 - PremierLink Filter Switch ConnectionFig. 56 - PremierLink Wiring Fan Pressure Switch Fig. 57 - PremierLink Wiring Remote OccupiedTable 20 – Color Code Recommendations Fig. 58 - PremierLinkt Power Exhaust OutputRTU-MPCONTROL SYSTEM Table 19 – Recommended Cables48TC Fig. 60 - RTU-MP Multi-ProtocolControl BoardC07129 C09163 48TCPOINT NAME Table 21 – RTU-MPController Inputs and OutputsCONFIGURABLE 48TCFig. 63 - RTU-MP T-56Sensor Connections Space Temperature SPT SensorsFig. 64 - Space Temperature Sensor Typical Wiring Fig. 62 - RTU-MP T-55Sensor Connections33ZCSENCO2 Connections Fig. 65 - RTU-MP /Indoor CO2 Sensor48TC Fig. 67 - RTU-MPPower Exhaust Connections Connecting Discrete InputsPower Exhaust output Communication Wiring - ProtocolsBACnet MS/TP RTU-MPTroubleshootingFig. 68 - RTU-MPSW3 Dip Switch Settings Local Access48TC Fig. 69 - BACview6 Handheld ConnectionsTable 22 – LEDs And Error LED showsACTION TAKEN BY Table 23 – Troubleshooting AlarmsRESET 48TCSAT Sensor Alarm AlarmsSafety Chain Alarm Fire Shutdown Alarm48TC Fig. 70 - Module Status Report Modstat ExampleTable 26 – Modbus Exception Codes that May be Table 25 – Basic Protocol TroubleshootingModbus Table 24 – Manufacture Date48TC ECONOMI$ER SYSTEMSFig. 71 - EconoMi$er IV Component Locations Fig. 72 - EconoMi$er2 Component Locations48TC Fig. 73 - EconoMi$er IV WiringFig. 75 - EconoMi$er IV Functional View Outdoor Air Temperature OAT SensorEconoMi$er Table 27 – EconoMi$er IV Input/Output LogicOutdoor Air Lockout Sensor Supply Air Temperature SAT SensorFig. 78 - Outside Air Temperature Changeover Fig. 76 - Supply Air Sensor LocationFig. 81 - Enthalpy Changeover Setpoints Differential Dry Bulb ControlOutdoor Enthalpy Changeover Mounting LocationDifferential Enthalpy Control Fig. 83 - CO2 Sensor Maximum Range SettingsExhaust Setpoint Adjustment Fig. 82 - EconoMi$er IV Control48TC Damper MovementThermostats Demand Control Ventilation DCVTable 28 – CO2 Sensor Standard Settings CO2 Sensor Configuration48TC Single Enthalpy Table 29 - EconoMi$er IV Sensor UsageEconoMi$er IV Preparation Differential EnthalpySupply-AirSensor Input WIRING DIAGRAMSEconoMi$er IV Troubleshooting Completion DCV Minimum and Maximum PositionC09156 48TCC09157 48TCGas Piping PRE-START-UPSTART-UP,GENERAL Unit PreparationOutdoor-AirInlet Screens Internal WiringRefrigerant Service Ports Return-AirFiltersSTART-UP, RTU-MPCONTROL Field Service TestMemory Reset START-UP,PREMIERLINKt CONTROLSSupply Fan Service Hours ConfigurationUnit Start Delay Filter Service HoursHeating 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 @ 4mAHeating, Units Without Economizer OPERATING SEQUENCESBase Unit Controls Cooling, Units Without EconomizerPremierLinkt Control Supplemental Controls48TC 48TC IAQS = IAQD + OAQ OAQ = 400 ppm if not present48TC SWhen Pre-OccupancyPurge is active48TC Table 30 – Available Cooling StagesS Indoor fan has been ON for at least 30 seconds 48TC48TC IAQS = IAQD + OAQ OAQ = 400 ppm if not present48TC Table 31 – Linkage ModesHeat Units Table 32 – Loadshed Command — Gas and ElectricAlways Occupied Default Occupancy RTU-MPSequence of OperationIndoor Fan BACnet ScheduleBAS On/Off DI On/OffIndoor Air Quality Power ExhaustFASTENER TORQUE VALUES Economizer48TC Table 33 – Torque Values48TC APPENDIX I. MODEL NUMBER SIGNIFICANCEModel Number Nomenclature Serial Number FormatCooling APPENDIX II. PHYSICAL DATAPhysical Data 7.5 - 12.5TONS7.5 - 12.5TONS APPENDIX II. PHYSICAL DATA contPhysical Data Heating7.5 TON VERTICAL SUPPLY 3 PHASEAPPENDIX III. FAN PERFORMANCE 7.5 TON HORIZONTAL SUPPLY3 PHASE 10 TON HORIZONTAL SUPPLY10 TON VERTICAL SUPPLY 48TC**123 PHASE 48TC**1412.5 TON VERTICAL SUPPLY 12.5 TON HORIZONTAL SUPPLYAPPENDIX III. FAN PERFORMANCE cont Pulley Adjustment48TC 2---StageCooling ELECTRICAL INFORMATION48TC 48TC*D08MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O 48TCWiring Diagrams APPENDIX IV. WIRING DIAGRAM LIST48TC Fig. 86 - 48TC*D08-D12Outdoor Circuiting APPENDIX V. MOTORMASTER SENSOR LOCATIONS48TC III. START-UP UNIT START-UPCHECKLISTTEMPERATURES I. PRELIMINARY INFORMATION