Carrier WeatherMaster 48HC04 Series Installation Instructions Manual

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Carrier WeatherMaster 48HC04 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. 04-53480191-01 Printed in U.S.A. Form 48HC-4-6-02SI Pg 1 1-19 Replaces: 48HC-4-6-01SIInstallation InstructionsCONTENTSSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 1MODEL NUMBER NOMENCLATURE ANDDIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Rated Indoor Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . 3INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Step 1 — Plan for Unit Location . . . . . . . . . . . . . . . . . 7• ROOF MOUNTStep 2 — Plan for Sequence of Unit Installation . . . . 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 CURB ORSLAB 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 . . . . . . . . . . . . . . 11• ECONOMIZER AND TWO POSITION DAMPER HOODPACKAGE REMOVAL AND SETUP (FACTORYOPTION)• ECONOMIZER AND TWO-POSITION HOODStep 9 — Units with Hinged Panels Only. . . . . . . . . 12Step 10 — Install Flue Hood . . . . . . . . . . . . . . . . . . . 12Step 11 — Install Gas Piping. . . . . . . . . . . . . . . . . . . 13• FACTORY-OPTION THRU-BASE CONNECTIONS(GAS CONNECTIONS)Step 12 — Install External Condensate Trap andLine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Step 13 — Make Electrical Connections . . . . . . . . . 15• FIELD POWER SUPPLY• UNITS WITH FACTORY-INSTALLED NON-FUSEDDISCONNECT OR HACR• UNITS WITHOUT FACTORY-INSTALLED NON-FUSED DISCONNECT OR HACR• ALL UNITS• CONVENIENCE OUTLETS• HACR AMP RATING• FACTORY-OPTION THRU-BASE CONNECTIONS(ELECTRICAL CONNECTIONS)• UNITS WITHOUT THRU-BASE CONNECTIONS(ELECTRICAL CONNECTIONS)• FIELD CONTROL WIRING• THERMOSTAT• HEAT ANTICIPATOR SETTINGS• HUMIDI-MIZER® CONTROL CONNECTIONS• LOW AMBIENT CONTROL (FACTORY OPTION)• INTEGRATED GAS CONTROLLER• COMFORTLINK (FACTORY OPTION)Economi$er® X (Factory Option) . . . . . . . . . . . . . . . 29• SYSTEM COMPONENTS• SPECIFICATIONS• INPUTS• OUTPUTS• ENVIRONMENTAL• ECONOMIZER MODULE WIRING DETAILS• INTERFACE OVERVIEW• SETUP AND CONFIGURATION• ENTHALPY SETTINGS• CHECKOUT• TROUBLESHOOTINGPremierLink™ (Factory Option). . . . . . . . . . . . . . . . .39RTU Open Controller (Factory-Installed Option) . . .39Smoke Detectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . .39• COMPLETING RETURN AIR SMOKE SENSORINSTALLATION• ADDITIONAL APPLICATION DATAStep 14 — Adjust Factory-Installed Options . . . . . .41• SMOKE DETECTORS• ECONOMI$ER IV OCCUPANCY SWITCHStep 15 — Install Accessories . . . . . . . . . . . . . . . . . .41Step 16 — Check Belt Tension . . . . . . . . . . . . . . . . .41• BELT FORCE — DEFLECTION METHOD• BELT TENSION METHODPre-Start and Start-Up . . . . . . . . . . . . . . . . . . . . . . . .42START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . .CL-1SAFETY CONSIDERATIONSImproper installation, adjustment, alteration, service,maintenance, or use can cause explosion, fire, electrical shockor other conditions which may cause personal injury orproperty damage. Consult a qualified installer, service agency,or your distributor or branch for information or assistance. Thequalified installer or agency must use factory-authorized kits oraccessories when modifying this product. Refer to theindividual instructions packaged with the kits or accessorieswhen installing.Follow all safety codes. Wear safety glasses and work gloves.Use quenching cloths for brazing operations and have a fireextinguisher available. Read these instructions thoroughly andfollow all warnings or cautions attached to the unit. Consultlocal building codes and appropriate national electrical codes(in USA, ANSI/NFPA70, National Electrical Code (NEC); inCanada, CSA C22.1) for special requirements.It is important to recognize safety information. This is thesafety-alert symbol . When you see this symbol on the unitand in instructions or manuals, be alert to the potential forpersonal injury.Understand the signal words DANGER, WARNING,CAUTION, and NOTE. These words are used with the safety-alert symbol. DANGER identifies the most serious hazardswhich will result in severe personal injury or death.WARNING signifies hazards which could result in personalinjury or death. CAUTION is used to identify unsafe practices,which may result in minor personal injury or product andproperty damage. NOTE is used to highlight suggestionsWeatherMaster®48HC04-06 Single Package RooftopGas Heating/Electric Cooling Unitwith Puron ® (R-410A) Refrigerant