Carrier 48TCA04---A12 Service And Maintenance Instructions

48TCA04---A12Nominal 3 to 10 TonsWith Puron® (R---410A) RefrigerantService and Maintenance InstructionsTABLE OF CONTENTSSAFETY CONSIDERATIONS 1. . . . . . . . . . . . . . . . . . . .UNIT ARRANGEMENT AND ACCESS 2. . . . . . . . . . .SUPPLY FAN (BLOWER) SECTION 4. . . . . . . . . . . . . .COOLING 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PURONR (R--410A) REFRIGERANT 8. . . . . . . . . . . . . .COOLING CHARGING CHARTS 9. . . . . . . . . . . . . . . . .CONVENIENCE OUTLETS 14. . . . . . . . . . . . . . . . . . . .SMOKE DETECTORS 15. . . . . . . . . . . . . . . . . . . . . . . . .PROTECTIVE DEVICES 22. . . . . . . . . . . . . . . . . . . . . . .GAS HEATING SYSTEM 22. . . . . . . . . . . . . . . . . . . . . .PREMIERLINKT CONTROL 34. . . . . . . . . . . . . . . . . . .RTU--MP CONTROL SYSTEM 42. . . . . . . . . . . . . . . . . .ECONOMI$ER SYSTEMS 55. . . . . . . . . . . . . . . . . . . . . .WIRING DIAGRAMS 63. . . . . . . . . . . . . . . . . . . . . . . . .PRE--START--UP 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .START--UP, GENERAL 66. . . . . . . . . . . . . . . . . . . . . . . .START--UP, PREMIERLINKT CONTROL 68. . . . . . . .START--UP, RTU--MP CONTROL 68. . . . . . . . . . . . . . . .OPERATING SEQUENCES 71. . . . . . . . . . . . . . . . . . . . .FASTENER TORQUE VALUES 81. . . . . . . . . . . . . . . . .APPENDIX I. MODEL NUMBER SIGNIFICANCE 82.APPENDIX II. PHYSICAL DATA 83. . . . . . . . . . . . . . . .APPENDIX III. FAN PERFORMANCE 87. . . . . . . . . . .APPENDIX IV. ELECTRICAL DATA 99. . . . . . . . . . . . .APPENDIX V. WIRING DIAGRAM LIST 104. . . . . . . .APPENDIX VI. MOTORMASTER SENSORLOCATIONS 105. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .UNIT START-UP CHECKLIST 107. . . . . . . . . . . . . . . . .SAFETY CONSIDERATIONSInstallation and servicing of air-conditioning equipmentcan be hazardous due to system pressure and electricalcomponents. Only trained and qualified service personnelshould install, repair, or service air-conditioningequipment. Untrained personnel can perform the basicmaintenance functions of replacing filters. Trained servicepersonnel should perform all other operations.When working on air-conditioning equipment, observeprecautions in the literature, tags and labels attached tothe unit, and other safety precautions that may apply.Follow all safety codes. Wear safety glasses and workgloves. Use quenching cloth for unbrazing operations.Have fire extinguishers available for all brazingoperations.Follow all safety codes. Wear safety glasses and workgloves. Use quenching cloth for brazing operations. Havefire extinguisher available. Read these instructionsthoroughly and follow all warnings or cautions attached tothe unit. Consult local building codes and NationalElectrical Code (NEC) for special requirements.Recognize safety information. This is the safety--alertsymbol . When you see this symbol on the unit and ininstructions or manuals, be alert to the potential forpersonal injury.Understand the signal words DANGER, WARNING, andCAUTION. These words are used with the safety--alertsymbol. DANGER identifies the most serious hazardswhich will result in severe personal injury or death.WARNING signifies a hazard which could result inpersonal injury or death. CAUTION is used to identifyunsafe practices which may result in minor personalinjury or product and property damage. NOTE is used tohighlight suggestions which will result in enhancedinstallation, reliability, or operation.