Carrier 90MU, 90MA specifications Service, Return-AirGrille Removal, Fan Pulley Adjustment

Contents COMPONENT ARRANGEMENT - *04/*06 Single-PackageMarine Cooling UnitsCOMPONENT ARRANGEMENT - *08/*12 Installation, Operation and Service InstructionsODF = Outside Diameter Female FPT = Female Pipe Thread MPT = Male Pipe ThreadFPT = Female Pipe Thread MPT = Male Pipe Thread Page ODF = Outside Diameter Female FPT = Female Pipe Thread MPT = Male Pipe ThreadODF = Outside Diameter Female FPT = Female Pipe Thread MPT = Male Pipe ThreadFPT = Female Pipe Thread MPT = Male Pipe Thread Step 4 - Rig and Place Unit FIGURE 2 - UNIT DIMENSIONSFIGURE 1 - BASE UNIT INTERIOR DETAILS TYPICAL UNIT SHOWNFIGURE 4 - CONCENTRIC WHEEL ALIGNMENT FIGURE 3 - HORIZONTAL WHEEL CENTERINGStep 10 - Make Condenser Connections FIGURE 5 - TYPICAL CONDENSER WATER PIPINGFIGURE 6 - CONNECTION LOCATIONS FIGURE 7 - CONDENSATE DRAIN TRAP Step 12 - Make Electrical Connections OPERATIONTo start unit To Shut Down UnitFIGURE 8 - FAN PULLEY ADJUSTMENT SERVICEReturn-AirGrille Removal FIGURE 9 - GRAVITY FLOW METHOD Water Regulating ValveFIGURE 10 - FORCED CIRCULATION METHOD Charging the System 90MU R-407C, R-404A,and R-134aunits FOR NOTES AND LEGEND, SEE FIGURE FIGURE 12 WIRING SCHEMATIC - 90MA/MU*04/*0690MA-3SISUPERCEDES FORM 90MA-3SISUPERCEDES FORM FIGURE 13 COMPONENT ARRANGEMENT - 90MA/MU*04/*06FOR NOTES AND LEGEND, SEE FIGURE FIGURE 14 - ELECTRICAL SCHEMATIC - 90MA/MU*08/*1290MA-3SISUPERCEDES FORM 90MA-3SISUPERCEDES FORM 90MA-3SISUPERCEDES FORM 90MA-3SISUPERCEDES FORM