Carrier WeatherMaker 48TC 06 Installation Instructions Manual

Contents

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53480180-01 Printed in U.S.A. Form 48TC-4-7-04SI Pg 1 4-18 Replaces: 48TC-4-7-03SIInstallation InstructionsCONTENTSPageGENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 1INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Job-Site Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Step 1 — Plan for Unit Location. . . . . . . . . . . . . . . . . 6Step 2 — Plan for Sequence of UnitInstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7• CURB-MOUNTED INSTALLATION• PAD-MOUNTED INSTALLATION• FRAME-MOUNTED INSTALLATIONStep 3 — Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 7Step 4 — Provide Unit Support . . . . . . . . . . . . . . . . . 7• ROOF CURB MOUNT• SLAB MOUNT (HORIZONTAL UNITS ONLY)• ALTERNATE UNIT SUPPORT (IN LIEU OF CURBOR SLAB MOUNT)Step 5 — Field Fabricate Ductwork. . . . . . . . . . . . . . 9Step 6 — Rig and Place Unit . . . . . . . . . . . . . . . . . . . . 9• POSITIONING ON CURBStep 7 — Convert to Horizontal and ConnectDuctwork (When Required) . . . . . . . . . . . . . . . . . 10Step 8 — Install Outside Air Hood. . . . . . . . . . . . . . 10• ECONOMIZER AND TWO POSITION DAMPERHOOD PACKAGE REMOVAL AND SETUP — FAC-TORY OPTION• ECONOMIZER HOOD AND TWO-POSITION HOODStep 9 — Install Flue Hood . . . . . . . . . . . . . . . . . . . . 11Step 10 — Install Gas Piping . . . . . . . . . . . . . . . . . . 11• FACTORY-OPTION THRU-BASE CONNECTIONS(GAS CONNECTIONS)Step 11 — Install External Condensate Trap andLine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Step 12 — Make Electrical Connections . . . . . . . . 14• FIELD POWER SUPPLY• UNITS WITH FACTORY-INSTALLED NON-FUSEDDISCONNECT• UNITS WITHOUT FACTORY-INSTALLED NON-FUSED DISCONNECT• CONVENIENCE OUTLETS• FACTORY-OPTION THRU-BASE CONNECTIONS(ELECTRICAL CONNECTIONS)• HUMIDI-MIZER ® CONTROL CONNECTION• ECONOMI$ER X (FACTORY-INSTALLED OPTION)• ECONOMIZER MODULE WIRING DETAILS• INTERFACE OVERVIEW• PREMIERLINK ™ (FACTORY-OPTION)• PREMIERLINK FIELD CONNECTIONS• ECONOMIZER CONTROLS• RTU OPEN CONTROL SYSTEM• RTU OPEN CONTROL SYSTEM FIELDCONNECTIONS• RTU OPEN COMMUNICATION WIRINGPROTOCOLS• LOCAL ACCESS• OUTDOOR AIR ENTHALPY CONTROL• SMOKE DETECTORSStep 13 — Adjust Factory-Installed Options . . . . 57• SMOKE DETECTORS• ECONOMI$ER IV OCCUPANCY SWITCHStep 14 — Install Accessories . . . . . . . . . . . . . . . . . 57Step 15 — Check Belt Tension . . . . . . . . . . . . . . . . 57• BELT FORCE — DEFLECTION METHOD• BELT TENSION METHODPre-Start and Start-Up . . . . . . . . . . . . . . . . . . . . . . . . 58START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . CL-1GENERALThese installation instructions cover the 48TC units withgas heat and electric cooling. Units are pre-wired and pre-charged with environmentally sound Puron® (R-410A)refrigerant at the factory. See Fig. 1 for model number nomen-clature. See Fig. 2 for unit dimensions. See Fig. 3 for serviceclearances.SAFETY CONSIDERATIONSImproper installation, adjustment, alteration, service, main-tenance, or use can cause explosion, fire, electrical shock orother conditions which may cause personal injury or propertydamage. Consult a qualified installer, service agency, or yourdistributor or branch for information or assistance. The quali-fied installer or agency must use factory-authorized kits or ac-cessories when modifying this product. Refer to the individualinstructions packaged with the kits or accessories wheninstalling.Follow all safety codes. Wear safety glasses and workgloves. Use quenching cloths for brazing operations and have a48TC 07 units for installation in the United States contain use of Carrier's Staged Air Volume (SAV™)2-speed indoor fan control system. This complies with the U.S. Department of Energy (DOE) efficiencystandard of 2018.48TC 07 units for installation outside the United States may or may not contain use of the SAV 2-speedindoor fan control system as they are not required to comply with the U.S. Department of Energy (DOE)efficiency standard of 2018.For specific details on operation of the Carrier SAV 2-speed indoor fan system refer to the VariableFrequency Drive (VFD) Factory-Installed Option 2-Speed Motor Control Installation, Setup, andTroubleshooting manual.WeatherMaker ®48TC 04-07Single Package Rooftop withGas Heat/Electric Cooling