Carrier - 38AUQ

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Contents

Installation Start Up and Service Instructions CONTENTS SAFETY CONSIDERATIONS 1 INSTALLATION GUIDELINES 2 INSTALLATION 7 14 Step 1 Plan for Unit Location 7 Step 2 Complete Pre Installation Checks 7 Step 3 Prepare Unit Mounting Support 7 Step 4 Rig and Mount the Unit 7 Step 5 Complete Refrigerant Piping Connections 7 Step 6 Install Accessories 10 Step 7 Complete Electrical Connections 10 PRE START UP 15 System Check 15 Turn On Crankcase Heater 15 Preliminary Charge 15 START UP 15 18 38AUQ Units 15 OPERATING SEQUENCE 19 Indoor Supply Fan 19 Cooling Unit Without Economizer 19 Cooling Unit With Economizer 19 Heating 19 Supplemental Heating Emergency Heating 19 Defrost Cycle 19 Cooling and Heating Shutdown 19 ROUTI ...