Carrier WeatherMaker 48TC Series Installation Instructions Manual

Contents

Carrier WeatherMaker 48TC Series Installation Instructions Manual Manual pdf 1 page image

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53480268-01 Printed in U.S.A. Form 48TC-17-30-V-05SI Pg 1 8-19 Replaces: 48TC-17-30-V-04SIInstallation InstructionsCONTENTSSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 1GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Rated Indoor Airflow (cfm) . . . . . . . . . . . . . . . . . . . . . 3INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Job-Site Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Step 1 — Plan for Unit Location . . . . . . . . . . . . . . . . 17• ROOF MOUNTStep 2 — Plan for Sequence of Unit Installation . . . 17• CURB-MOUNTED INSTALLATION• PAD-MOUNTED INSTALLATION• FRAME-MOUNTED INSTALLATIONStep 3 — Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . 17Step 4 — Provide Unit Support. . . . . . . . . . . . . . . . . 17• ROOF CURB MOUNT• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB ORSLAB MOUNT)Step 5 — Field Fabricate Ductwork . . . . . . . . . . . . . 22Step 6 — Rig and Place Unit . . . . . . . . . . . . . . . . . . . 22• POSITIONING ON CURBStep 7 — Install Outside Air Hood (Factory-Option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Step 8 — Install Flue Hood and Combustion AirHood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Step 9 — Install Gas Piping. . . . . . . . . . . . . . . . . . . . 24• GAS SUPPLY LINE• FACTORY-OPTION THRU-BASE CONNECTIONSStep 10 — Install External Condensate Trap andLine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Step 11 — Make Electrical Connections . . . . . . . . . 27• FIELD POWER SUPPLY• UNITS WITH FACTORY-INSTALLED NON-FUSEDDISCONNECT• UNITS WITH FACTORY-INSTALLED NON-FUSEDDISCONNECT• TO FIELD INSTALL THE NFD SHAFT AND HANDLE:• ALL UNITSConvenience Outlets . . . . . . . . . . . . . . . . . . . . . . . . . 29• INSTALLING WEATHERPROOF COVER• FACTORY-OPTION THRU-BASE CONNECTIONS(ELECTRICAL CONNECTIONS)Humidi-MiZer® Control Connections . . . . . . . . . . . . 31• HUMIDI-MIZER – SPACE RH CONTROLLEREconoMi$er® X (Factory-Installed Option) . . . . . . . 33• PRODUCT DESCRIPTION• SYSTEM COMPONENTS• SPECIFICATIONS• INPUTS• OUTPUTS• ENVIRONMENTAL• ECONOMIZER MODULE WIRING DETAILS• S-BUS SENSOR WIRING• CO2 SENSOR WIRING• INTERFACE OVERVIEW• USER INTERFACE• KEYPAD• MENU STRUCTURE• SETUP AND CONFIGURATION• TIME-OUT AND SCREENSAVER• ENTHALPY SETTINGS• TWO-SPEED FAN OPERATION• CHECKOUT• TROUBLESHOOTINGPremierLink™ Control . . . . . . . . . . . . . . . . . . . . . . . 46RTU Open Control System. . . . . . . . . . . . . . . . . . . . 46Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46Smoke Detectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . 59• RETURN AIR SENSOR TUBE INSTALLATION• SMOKE DETECTOR TEST MAGNET• ADDITIONAL APPLICATION DATAStep 12 — Adjust Factory-Installed Options . . . . . 60• ECONOMI$ER IV OCCUPANCY SWITCHStep 13 — Install Accessories . . . . . . . . . . . . . . . . . 60Step 14 — Check Belt Tension . . . . . . . . . . . . . . . . 60• BELT FORCE — DEFLECTION METHOD• BELT TENSION METHODPre-Start and Start-Up . . . . . . . . . . . . . . . . . . . . . . . 61START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . CL-1SAFETY 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 basic maintenance functions ofcleaning coils and filters and replacing filters. All other operationsshould be performed by trained service personnel. When workingon air-conditioning equipment, observe precautions in the litera-ture, tags and labels attached to the unit, and other safety precau-tions that may apply.48TC 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 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 17-30Single Package Rooftop with Gas Heat/Electric CoolingVertical Air Flow Unit with Puron ® (R-410A) Refrigerant