Carrier 38XTZ 007-024 Installation, Operation And Maintenance Instructions

2CONTENTSSTART-UP CHECK LIST ................................................................................................................................................................ 3PHYSICAL DATA ............................................................................................................................................................................ 4ELECTRICAL DATA (3 PHASE, 50 HZ) ......................................................................................................................................4OPERATING LIMITS....................................................................................................................................................................... 4Standard refrigerant line diameters (inches) ....................................................................................................................................... 4DIMENSIONS, mm ........................................................................................................................................................................... 5Service clearance, mm ...................................................................................................................................................................... 11Centre of gravity coordinates (mm - approx.) .................................................................................................................................. 12Weight distribution (kg - approx.) .................................................................................................................................................... 13FAN CURVES (STANDARD) ...................................................................................................................................................... 14SAFETY CONSIDERATIONS ...................................................................................................................................................... 21Unit transport, lifting and handling .................................................................................................................................................. 22UNIT INSTALLATION ................................................................................................................................................................. 22Repositioning unit air discharge ....................................................................................................................................................... 26ELECTRICAL CONNECTIONS ................................................................................................................................................... 28MASTER LINK I ELECTRONIC CONTROL ............................................................................................................................. 29REFRIGERANT LINE CONNECTIONS ..................................................................................................................................... 31Connection between units ................................................................................................................................................................. 31Refrigerant piping design ................................................................................................................................................................. 31Pipe diameter calculation procedure ................................................................................................................................................. 32Refrigerant charge ............................................................................................................................................................................ 34OIL RECHARGE ........................................................................................................................................................................... 34START-UP ...................................................................................................................................................................................... 35Initial checks ..................................................................................................................................................................................... 35UNIT COMPONENTS ................................................................................................................................................................... 35Description of unit protection devices .............................................................................................................................................. 35GENERAL MAINTENANCE ....................................................................................................................................................... 36Servicing recommendations.............................................................................................................................................................. 37Compressor replacement .................................................................................................................................................................. 37FINAL RECOMMENDATIONS ................................................................................................................................................... 39TROUBLESHOOTING CHART ................................................................................................................................................... 39