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Carrier 48TC**16 Installation, Plan for Unit Location, Service Clearance Dimensional Drawing

Models: 48TC**16

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INSTALLATION

48TC**16

Fig. 1 - Unit Dimensional Drawing – 16 Size Unit (cont.)

C10862A

INSTALLATION

Jobsite Survey

Complete the following checks before installation.

1.Consult local building codes and the NEC (National Electrical Code) ANSI/NFPA 70 for special installa- tion requirements.

2.Determine unit location (from project plans) or select unit location.

3.Check for possible overhead obstructions which may interfere with unit lifting or rigging.

18”

(457)*

42"

(1067)

42"

(1067)

42"

(1067)

Step 1 — Plan for Unit Location

*Required bottom condensate drain connection. Otherwise, 36” (914mm) for condensate connection.

C09897

Select a location for the unit and its support system (curb or other) that provides for at least the minimum clearances required for safety. This includes the clearance to combustible surfaces, unit performance and service access below, around and above unit as specified in unit drawings. See Fig. 2.

NOTE: Consider also the effect of adjacent units.

Unit may be installed directly on wood flooring or on Class A, B, or C roof-covering material when roof curb is used

Do not install unit in an indoor location. Do not locate air inlets near exhaust vents, relief valves, or other sources of contaminated air.

Fig. 2 - Service Clearance Dimensional Drawing

Although unit is weatherproof, avoid locations that permit water from higher level runoff and overhangs to fall onto the unit.

Select a unit mounting system that provides adequate height to allow for removal and disposal of frost and ice that will form during the heating-defrost mode as well as allow installation of condensate trap per requirements. Refer to Step 11 — Install External Condensate Trap and Line – for required trap dimensions.

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Carrier 48TC**16 Installation, Plan for Unit Location, Service Clearance Dimensional Drawing, Jobsite Survey

Contents

TABLE OF CONTENTS Installation Instructions48TC**16 Single Package RooftopSAFETY CONSIDERATIONS UNIT OPERATION AND SAFETY HAZARD48TC**16 FIRE, EXPLOSION HAZARDFig. 1 - Unit Dimensional Drawing – 16 Size Unit 48TC**16Vertical Connections / Economizer Horizontal Connections / EconomizerINSTALLATION Fig. 2 - Service Clearance Dimensional DrawingStep 1 — Plan for Unit Location Jobsite SurveyStep 2 - Plan for Sequence of Unit Installation Table 1 – Operating WeightsCurb-mountedinstallation — Pad-mountedinstallation —48TC**16 Fig. 3 - Roof Curb DetailsC10772 Step 5 — Field Fabricate Ductwork Step 6 — Rig and Place UnitFig. 4 - Unit Leveling Tolerances PROPERTY DAMAGE HAZARDFig. 6 - Retrofit Installation Dimensions Positioning on Curb —Fig. 8 - Horizontal Conversion Panels 48TC**16Step 8 — Install Outside Air Hood Economizer Hood Removal and SetupFig. 9 - Typical Access Panel Locations Factory OptionStep 9 — Install Flue Hood Fig. 12 - Indoor Coil Access Panel RelocationFig. 14 - Economizer Filter Installation Economizer Hood and Two-PositionHood —Step 10 — Install Gas Piping Fig. 16 - Gas Piping GuideTable 2 – Natural Gas Supply Line Pressure Ranges EQUIPMENT DAMAGE HAZARDOption Fig. 20 - Gas PipingFig. 19 - Gas Line Piping Fig. 21 - Gas PipingFig. 23 - Orifice Hole FIRE OR EXPLOSION HAZARDFig. 24 - Condensate Drain Pan Side View Field Power Supply — Step 12 — Make Electrical ConnectionsFig. 26 - Conduit into Factory Option Disconnect Fig. 25 - Condensate Drain Piping DetailsFig. 30 - Disconnect Switch and Unit Units Without Factory-InstalledDisconnect —Units with Factory-InstalledDisconnect — Fig. 29 - Mounting Position for Field DisconnectsFig. 31 - Power Wiring Connections Convenience Outlets —ELECTRICAL OPERATION HAZARD Fig. 33 - Convenience Outlet Utilization NoticeFig. 34 - Unit Powered Convenience Outlet Wiring Fig. 35 - Weatherproof Cover InstallationELECTRICAL OPERATION HAZARD 48TC**16Field Control Wiring Factory-Option Thru-BaseConnectionsElectrical Connections— Fig. 36 - Thru-the-BaseOption, Shipping PositionFig. 39 - Thermostat Wire Routing Heat Anticipator Settings —Unit without Thru-BaseConnection Kit — Fig. 38 - Typical Low-VoltageControl ConnectionsFig. 40 - Accessory Field-InstalledHumidistat Humidi-MiZerR Control ConnectionsHumidi-MiZer- Space RH Controller To connect the Carrier humidistat HL38MG029with EDGE Pro Thermidistat Device 48TC**16Fig. 44 - PremierLink Controller PremierLinkt Factory Option48TC**16 48TC**16 Fig. 46 - PremierLink Wiring SchematicC11202 48TC**16 C11203Supply Air Temperature SAT Sensor — Outdoor Air Temperature OAT Sensor —Field Connections EconoMi$er2 —Table 4 - Space Sensor Mode Table 5 – Thermostat ModeINPUT SIGNAL INPUT SIGNALFig. 49 - T-55Space Temperature Sensor Wiring Configure the unit for Thermostat Mode —Space Sensors — Fig. 52 - PremierLink T-56Sensor33ZCSENCO2 - Typical Wiring Diagram Economizer ControlsIndoor Air Quality CO2 sensor — Fig. 55 - Indoor CO2 Sensor 33ZCSENCO2To wire the sensor TB3-7BLACK TB3-13Filter Status Switch Fig. 60 - PremierLink Filter Switch ConnectionSupply Fan Status Switch Fig. 61 - PremierLink Wiring Fan Pressure SwitchConnecting CCN Bus CCN Communication Bus —Table 6 – Recommended Cables Table 7 – Color Code RecommendationsFig. 65 - RTU Open Multi-ProtocolControl Board RTU Open Control System48TC**16 48TC**16 Fig. 67 - RTU Open System Control Wiring DiagramC11204 48TC**16 C11205Table 8 – RTU Open Controller Inputs and Outputs Supply Air Temperature SAT Sensor —Outdoor Air Temperature OAT Sensor — Field ConnectionsSpace Temperature SPT Sensors Fig. 71 - Space Temperature Sensor Typical WiringFig. 69 - RTU Open T-55Sensor Connections Fig. 70 - RTU Open T-56Sensor ConnectionsHumidi-MiZerR Control Wiring In units equipped Fig. 72 - RTU Open / Indoor CO2 Sensor33ZCSENCO2 Connections Outdoor Air Quality Sensor Fig. 73 - RTU Open / Outdoor CO2 Sensor48TC**16 Connecting Discrete Inputs —Smoke Detector/Fire Shutdown FSD — Communication Wiring - Protocols Fig. 76 - RTU Open SW3 Dip Switch SettingsFig. 77 - RTU Open Address Switches Fig. 78 - Network WiringLocal Access RTU Open Troubleshooting —P1 P1 P5 P5Wiring Outdoor Air Enthalpy Control PNO 33CSENTHSWTable 9 – LEDs Differential Enthalpy Control —Fig. 81 - Controller Assembly Smoke DetectorsSystem — Controller —See “Completing Installation of Return Air Smoke Smoke Detector LocationsSupply Air LocationFig. 85 - Return Air Detector Shipping Position Fig. 86 - Return Air Sensor Operating PositionAdditional Application Data 48TC**16Legend and Notes for Table 48TC**16Step 13 — Adjust Factory-InstalledOptions Step 14 — Install AccessoriesFig. 87 - EconoMi$ert IV Wiring EconoMi$er IV Occupancy Switch —48TC**16 48TC**16 14SICatalog No: 48TC Replaces: 48TC