Carrier - 48PG20-28

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Contents

48PG20 28 Single Package Rooftop Units Electric Cooling Gas Heating with Electromechanical Controls and PURON R 410A Refrigerant Installation Start Up and Service Instructions CONTENTS Page SAFETY CONSIDERATIONS 1 2 INSTALLATION 2 17 Step 1 Provide Unit Support 2 ROOF CURB ALTERNATE UNIT SUPPORT SLAB MOUNT Step 2 Remove Shipping Raiis 2 Step 3 Rig and Piace Unit 2 POSITIONING ROOT MOUNT INSTAL L ATION ONTO CURB Step 4 Fieid Fabricate Ductwork 9 Step 5 Make Unit Duct Connections 9 VERTICAL CONEIGURATION HORIZONTAL APPLICATIONS Step 6 Instaii Fiue Hood and Inlet Hood 10 Step 7 Trap Condensate Drain 10 Step 8 Install Gas Piping 10 Step 9 Make Electrical Connecti ...