Carrier 48TCA04---A12 APPENDIX III. FAN PERFORMANCE

APPENDIX III. FAN PERFORMANCE

General Fan Performance Notes:

1. Interpolation is permissible. Do not extrapolate.

2. External static pressure is the static pressure difference between the return duct and the supply duct plus the static

pressurecaused by any FIOPs or accessories.

3. Tabular data accounts for pressure lossdue to clean filters, unit casing, and wet coils. Factory options and accessories

may add static pressure losses.

4. The Fan Performance tables offer motor/drive recommendations. In cases when two motor/drive combinations would

work, Carrier recommended the lower horsepower option.

5. For information on theelectrical properties of Carrier’s motors, please see the Electrical information section of this

book.

48TC

Contents

Main 48TCA04---A12 Nominal 3 to 10 Tons With Puron(R---410A) Refrigerant Service and Maintenance Instructions TABLEOF CO NTENTS SAFETY CONSIDERATIONS UNIT ARRANGEMENT AND ACCESS General RoutineMaintenance Seasonal Maintenance SUPPLYFAN (BLOWER) SECTION Supply Fan (Belt--Drive) COOLING CondenserCoil CondenserCoil Maintenance and Cleaning Recommendation Page Evaporator Coil Refrigerant System Pressure Access Ports PURONR(R--410A)REFRIGERANT Refrigerant Charge SEAT CORE COOLING CHARGING CHARTS Page Page Page Table1 Cooling Service Analysis Compressor FilterDrier Condenser--Fan Adjustment TroubleshootingCooling System CONVENIENCE OUTLETS SMOKE DETECTORS System Controller Sensor Smoke Detector Locations Completing Installation of Return Air Smoke Sensor: FIOP Smoke Detector Wiring and Respon se A D C F E Page Detector Cleaning INDICATORS Troubleshooting PROTECTIVE DEVICES Compresso r Protection ReliefDevice ControlCircuit, 24--V GAS HEATING SYSTEM Fuel Typesand Pressures Flue Gas Passageways Combustion--AirBlower Burners and Igniters Burner Ignition OrificeReplacement Page Table9 IGC Conne ctions Table10 Orifice Sizes Table11 Altitude Com pensation* (A04--A07) Table11 (cont.) --Altitude Compensation* (A08 --A12) TroubleshootingHeating System Table13 He ating Service Analysis Table14 IGC Board LED Alarm Codes PREMIERLINKTCONTROL Page Page Table16 PremierLink Sensor Usage Table17 Space Se nsor Mode Page 6 7 LCTB ECON 3 2 Enthalpy Switch GRA GRA Factory Wiring Harness } Page RTU--MP CONTROL SYSTEM Page Page Page Space Temperature (SPT) Sensors SEN COM J4-2 J4-3 IAQ Sensor 24 VAC ConnectingDiscrete Inputs PowerExhaust (output) Power Exhaust J11-3 C THERMOSTAT PEC TAN GRA RTU--MP Troubleshooting Table22 LEDs The LEDson the RTU--MPshow the status of certain functions Table23 Troubleshooting Al arms Alarms BACnet MS/TP Page Modbus N2 ECONOMIZER SYSTEMS Fig. 72 --EconoMi$er IV Wiring 4 3 5 2 8 6 7 1 10 11 9 12 Fig. 73 --EconoMi$er2 with 4 to 20 mA Control Wiring RUN YELLOW EconoMi$er IV Page Page Page Page Page WIRING DIAGRAMS Page Page PRE--START--UP START--UP,GENERAL Unit Preparation Gas Piping Return--AirFilters Cooling Main Burners Heating Ventilation(Continuous Fan) START--UP, PREMIERLINK CONTROLS Perform System Check--Out Initial Operation and Test START--UP, RTU--MPCONTROL Field Service Test Configuration Page OPERATINGSEQUENCES Base Unit Controls Cooling, Units Without Economizer Heating, Units WithoutEconomizer Cooling, Unit With EconoMi$er IV Heating WithEconoMi$er IV PremierLink Control Page Page Page Page Page RTU--MP Sequenceof Operation Page Page FASTENERTORQUE VALUES APPENDIX I. MODEL NUMBER SIGNIFICANCE ModelNumber Nomenclature 4 8 T C D A 0 4 A 1 A 5 -- 0 A 0 A 0 Serial Number Format APPENDIX II. PHYSICAL DATA Physical Data (Cooling) 3 --6 TONS Physical Data (Cooling) 7.5 --10 TONS Physical Data (Heating) 3 --6 TONS Physical Data (Heating) 7.5 --10 TONS APPENDIX III. FAN PERFORMANCE General Fan Performance Notes: 48TC**04 1 Phase 3 TonHorizontal Supply 48TC**04 1 Phase 3 TonVertical Supply 48TC**04 3 Phase 3 TonHorizontal Supply 48TC**04 3 Phase 3 TonVertical Supply 48TC**05 1 Phase 4 TonHorizontal Supply 48TC**05 1 Phase 4 TonVertical Supply 48TC**05 3 Phase 4 TonHorizontal Supply 48TC**05 3 Phase 4 TonVertical Supply 48TC**06 1 Phase 5 TonHorizontal Supply 48TC**06 1 Phase 5 TonVertical Supply 48TC**06 3 Phase 5 TonHorizontal Supply 48TC**06 3 Phase 5 TonVertical Supply 48TC**07 3 Phase 6 TonHorizontal Supply 48TC**07 3 Phase 6 TonVertical Supply 48TC**08 3 PHASE 7.5 TON HORIZONTALSUPPLY 48TC**08 3 PHASE 7.5TON VERTICAL SUPPLY FAN PERFORMANCE(cont.) 48TC**09 3 PHASE 8.5 TON HORIZONTALSUPPLY 48TC**09 3 PHASE 8.5 TON VERTICAL SUPPLY FAN PERFORMANCE(cont.) 48TC**12 3 PHASE 10 TON HORIZONTALSUPPLY 48TC**12 3 PHASE 10 TON VERTICAL SUPPLY Pulley Adjustment APPENDIX IV.ELECTRICAL DATA 48TC**04 3 TONS 48TC**05 4 TONS 48TC**06 5 TONS 48TC**07 6 TONS 48TC**08 7.5 TONS 48TC**09 8.5 TONS 48TC**12 10 TONS MCA/MOCPDETERMINATION NO C.O. OR UNPWRD C.O. See notes on next page. Page APPENDIX V.WIRING DIAGRAM LIST Wiring Diagrams APPENDIX VI. MOTORMASTER SENSOR LOCATIONS Page UNIT START-UP CHECKLIST I. PRELIMINARY INFORMATION: II. PRE-START-UP(insert check mark in b ox as each item is completed): III. START-UP ELECTRICAL