Carrier 40RU Installation, Start-up And Service Instructions Manual

Contents

40RUPackaged Air---Handling Units60 HzWith PuronR (R---410A) RefrigerantSizes 07, 08, 12, 14, 16Installation, Start---Up andService InstructionsTABLE OF CONTENTSSAFETY CONSIDERATIONS 1. . . . . . . . . . . . . . . . . . .PRE--INSTALLATION 2. . . . . . . . . . . . . . . . . . . . . . . . .Moving and Storage 2. . . . . . . . . . . . . . . . . . . . . . . . . .Rigging 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .INSTALLATION 2–22. . . . . . . . . . . . . . . . . . . . . . . . . .General 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Uncrating 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Accessories 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Unit Positioning 12. . . . . . . . . . . . . . . . . . . . . . . . . . . .Unit Isolation 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Refrigerant and Chilled Water Piping Access 13. . . . .Refrigerant Piping 13. . . . . . . . . . . . . . . . . . . . . . . . . .Chilled Water Piping 17. . . . . . . . . . . . . . . . . . . . . . . .Condensate Drain 18. . . . . . . . . . . . . . . . . . . . . . . . . . .Fan Motors and Drives 18. . . . . . . . . . . . . . . . . . . . . . .Power Supply and Wiring 19. . . . . . . . . . . . . . . . . . . .Connecting Ductwork 22. . . . . . . . . . . . . . . . . . . . . . .Return--Air Filters 22. . . . . . . . . . . . . . . . . . . . . . . . . .START--UP 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SERVICE 23–36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Panels 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Fan Motor Lubrication 23. . . . . . . . . . . . . . . . . . . . . . .Fan Shaft Bearings 23. . . . . . . . . . . . . . . . . . . . . . . . . .Centering Fan Wheel 24. . . . . . . . . . . . . . . . . . . . . . . .Fan Shaft Position Adjustment 24. . . . . . . . . . . . . . . .Individual Fan Wheel Adjustment 24. . . . . . . . . . . . . .Fan Belts 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Fan Rotation 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Fan Pulley Alignment 25. . . . . . . . . . . . . . . . . . . . . . .Pulley and Drive Adjustment 25. . . . . . . . . . . . . . . . . .Condensate Drains 25. . . . . . . . . . . . . . . . . . . . . . . . . .Return--Air Filters 25. . . . . . . . . . . . . . . . . . . . . . . . . .Chilled Water Coil Freeze Protection 25. . . . . . . . . . .Coil Removal 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Cleaning Cooling Coil 25. . . . . . . . . . . . . . . . . . . . . . .Cleaning Insulation 25. . . . . . . . . . . . . . . . . . . . . . . . .Replacing Filters 26. . . . . . . . . . . . . . . . . . . . . . . . . . .START--UP CHECKLIST 39--40. . . . . . . . . . . . . . . . . .SAFETY CONSIDERATIONSImproper installation, adjustment, alteration, service,maintenance, or use can cause explosion, fire, electricalshock or other conditions which may cause personalinjury or property damage. Consult a qualified installer,service agency, or your distributor or branch forinformation or assistance. The qualified installer oragency must use factory--authorized kits or accessorieswhen modifying this product. Refer to the individualinstructions packageFollow all safety codes. Wear safety glasses and workgloves. Use quenching cloths for brazing operations andhave a fire extinguisher available. Read these instructionsthoroughly and follow all warnings or cautions attached tothe unit. Consult local building codes and appropriatenational electrical codes (in USA, ANSI/NFPA70,National Electrical Code (NEC); in Canada, CSA C22.1)for special requirements.It is important to recognize safety information. This is thesafety--alert symbol . When you see this symbol on theunit and in instructions or manuals, be alert to thepotential for personal injury.Understand the signal words DANGER, WARNING,CAUTION, and NOTE. These words are used with thesafety--alert symbol. DANGER identifies the most serioushazards which will result in severe personal injury ordeath. WARNING signifies hazards 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.