Carrier 48PD05 Installation Instructions Manual

Also see for 48PD05: User manual User's information manual Operating and service instructions

Carrier 48PD05 Installation Instructions Manual Manual pdf 1 page image

I rn®to the ExpertgInstallation InstructionsIMPORTANT: This installation instruction contains basic unitinstallation information including installation of field controldevices. For information on unit start-up, service, and operation,refer to the unit Controls, Start-Up, Operation, Service, andTroubleshooting Instructions also enclosed in the unit literaturepacket.TABLE OF CONTENTSPAGEGENERAL ......................................... 1SAFETY CONSIDERATIONS ......................... 1INSTALLATION .................................... 2Step 1 - Provide Unit Support ......................... 2Step 2 - Rig and Place Unit ........................... 2Step 3 - Field Fabricate Ductwork ...................... 9Step 4 - Make Unit Duct Connections ................... 9Step 5 - Install Flue Hood and Inlet Hood ................ 9Step 6 - Install External Trap for Condensate Drain ....... 10Step 7 - Orifice Change ............................. 11Step 8 - Install Gas Piping ........................... 12Step 9 - Make Electrical Connections .................. 12Step 10 - Install Outdoor-Air Hoods(Units with Economizers) .......................... 16Step 11 - Install All Accessories ...................... 16Step 12 - Configure Controls ........................ 16GENERALThe 48PD rooftop unit uses Puron ® (R-410A) refrigerant andComfortLink "_ DDC controls. It is intended to be used in either adisplacement ventilation or a single-zone variable air volumeapplication, The unit includes a factory installed variable capacitycompressor and variable frequency drive indoor fan motor. Thismanual provides instruction for installation of the unit, Refer tothe unit Controls and Troubleshooting book for additionalinformation on configuring controls.SAFETY CONSIDERATIONSInstallation and servicing of air-conditioning equipment can behazardous due to system pressure and electrical components. Onlytrained and qualified service personnel should install, repair, orservice air-conditioning equipment.Untrained personnel can perform the basic maintenance functionsof replacing filters. All other operations should be performed bytrained service personnel. When working on air-conditioningequipment, observe precautions in the literature, tags and labelsattached to the unit, and other safety precautions that may apply.Follow all safety codes. Wear safety glasses and work gloves.Recognize safety information. This is the safety-alert symbol /_.When you see this symbol on the unit and in instructions ormanuals, be alert to the potential for personal injury.Understand the signal words DANGER, WARNING, andCAUTION. These words are used with the safety-alert symbol.DANGER identifies the most serious hazards which will result insevere personal injury or death. WARNING signifies a hazardwhich could result in personal injury or death. CAUTION is usedto identify unsafe practices which may result in minor personalinjury or product and property damage. NOTE is used to highlightsuggestions which will result in enhanced installation, reliability, oroperation.ELECTRICALSHOCK HAZARDFailure to follow this warning could result in personalinjury or death.Before performing service or maintenance operations onunit, always turn off main power to unit.UNIT OPERATION AND SAFETY HAZARDFailure to follow this caution may result in personal injuryor equipment damage,Puron ® (R-410A) refrigerant systems operate at higherpressures than standard R-22 systems, Do not use R-22service equipment or components on Puron refrigerantequipment,