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Carrier 50TC Electric Heaters, Heater Model Number, Typical Access Panel Location 3-6Ton

Models: 50TC

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Table 3 – Heater Model Number

Table 3 – Heater Model Number

Bare Heater Model Number

C

R

H

E

A

T

E

R

0

1

6

A

0

0

Heater Sales Package PNO

Includes:

Bare Heater

C

R

H

E

A

T

E

R

1

1

6

A

0

0

Carton and packing materials

Installation sheet

Electric Heaters

DISCONNECT MOUNTING

LOCATION

50TC units may be equipped with field-installed accessory electric heaters. Each heater is a pre-assembled module, with heater frames holding open coil resistance wires strung through ceramic insulators, line-break limit switches and two control contactors for two-stage heating control.

The heater module is installed in the compartment below the indoor (supply) fan outlet. Access is through the indoor access panel. Heater modules slide into the compartment on tracks along the bottom of the heater opening. See Fig. 22, Fig. 23 and Fig. 24. Refer to the Electric Heater Kit Installation Instructions for complete details.

Not all available heater modules may be used in every unit. Use only those heater modules that are Carrier approved for use in a specific size. Refer to the label on the unit cabinet for the list of approved heaters.

Unit heaters are marked with Heater Model Numbers. But heaters are ordered as and shipped in cartons marked with a corresponding heater Sales Package part number. See Table 3 for correlation between heater Model Number and Sales Package part number.

NOTE: The value in position 9 of the part number differs between the sales package part number (value is 1) and a bare heater model number (value is 0).

RACEWAY

UNIT BLOCK-OFF		OUTDOOR		INDOOR
UNIT BLOCK-OFF		OUTDOOR		ACCESS
PANEL		ACCESS PANEL		PANEL
				C08133
Fig. 22 - Typical Access Panel Location (3-6 Ton)
DISCONNECT	EMT OR RIGID CONDUIT SINGLE		CENTER	MANUAL RESET
MOUNTING	(FIELD-SUPPLIED)	POINT BOX	POST	LIMIT SWITCH
LOCATION				HEATER
				HEATER

COVERS

		SINGLE POINT
MAIN	BRACKET AND	BOX	HEATER	HEATER	HEATER
CONTROL CONDUIT		MOUNTING	MODULE	MODULE	MOUNTING
BOX	DRIP BOOT	SCREW	(LOCATION 1) (LOCATION 2) BRACKET

CONTROL WIRE TERMINAL BLOCK

C08134

Fig. 23 - Typical Component Location

50TC

HOLE IN END PANEL (HIDDEN)

C08027

Fig. 21 - Field Control Wiring Raceway

16

Image 16

Carrier 50TC Electric Heaters, Heater Model Number, Typical Access Panel Location 3-6Ton, Typical Component Location

Contents

TABLE OF CONTENTS SAFETY CONSIDERATIONSInstallation Instructions 50TC Single Package Rooftop, 50Hz Cooling OnlyUNIT OPERATION AND SAFETY HAZARD 50TCELECTRICAL SHOCK HAZARD PERSONAL INJURY AND ENVIRONMENTAL HAZARDFig. 1 - Unit Dimensional Drawing - 07 Size Units 50TCVertical Connections / Economizer Horizontal Connections / Economizer50TC C0944850TC Vertical Connections / EconomizerHorizontal Connections / Economizer C09450INSTALLATION Fig. 3 - Service Clearance Dimensional DrawingStep 1 - Plan for Unit Location Roof mountStep 2 - Plan for Sequence of Unit Installation Table 1 - Operating WeightsCurb-mountedinstallation Pad-mountedinstallationFig. 4 - Roof Curb Details - 07 Size Units ACCESSORYACCESSORY 50TCFig. 5 - Roof Curb Details - 08 - 12 Size Units 50TC50TC-*08 C09453Step 5 - Field Fabricate Ductwork Fig. 6 - Unit Leveling TolerancesFig. 7 - Rigging Details DETAIL AStep 8 - Install Outside Air Hood Fig. 9 - Typical Access Panel LocationsStep 6 - Rig and Place Unit UNIT DAMAGE HAZARDTwo Position Damper Hood Removal and Setup Fig. 12 - Indoor Coil Access Panel RelocationFig. 10 - Economizer Parts, Shipping Location Factory OptionFig. 14 - Economizer Filter Installation Step 10 - Make Electrical ConnectionsFig. 15 - Condensate Drain Pan Side View Fig. 16 - Condensate Drain Piping DetailsFig. 17 - Disconnect Switch and Unit Units Without Factory-InstalledDisconnectUnits with Factory-InstalledDisconnect Fig. 18 - Power Wiring ConnectionsField Control Wiring Heat Anticipator SettingsUnits without Thru-BaseConnections All UnitsFig. 22 - Typical Access Panel Location 3-6Ton Fig. 21 - Field Control Wiring RacewayElectric Heaters Table 3 - Heater Model NumberFig. 24 - Typical Module Installation Fig. 25 - Typical Single Point InstallationFig. 26 - Accessory Electric Heater Control ConnectionsFig. 27 - PremierLink Controller PremierLinkt Factory-Option50TC 50TC Fig. 29 - PremierLink Wiring SchematicC09460 Table 4 - PremierLink Sensor Usage 50TCTable 5 - Space Sensor Mode Table 6 - Thermostat ModeINPUT SIGNAL FIELD CONNECTIONFig. 30 - T-55Space Temperature Sensor Wiring Fig. 31 - PremierLink T-55SensorFig. 32 - T-56Internal Connections Fig. 33 - PremierLink T-56SensorEnthalpy 33ZCSENCO2 - Typical Wiring Diagram Fig. 37 - Indoor/Outdoor Air Quality CO2 SensorFig. 38 - Indoor CO2 Sensor 33ZCSENCO2 Fig. 39 - Outdoor Air Quality Sensor CoverFig. 41 - PremierLink Filter Switch Connection Fig. 42 - PremierLink Wiring Fan Pressure SwitchFig. 43 - PremierLink Wiring Remote Occupied ConnectionFig. 44 - PremierLink CCN Bus Connections Table 8 - Color Code Recommendations50TC RTU-MPcontrol system Fig. 45 - RTU-MP Multi-ProtocolControl BoardFig. 46 - 50TC Control Box Component Locations 50TC50TC Fig. 47 - RTU-MPSystem Control Wiring DiagramC09461 Table 9 - RTU-MPController Inputs and Outputs 50TCSpace Temperature SPT Sensors Fig. 50 - Space Temperature Sensor Typical WiringFig. 48 - RTU-MP T-55Sensor Connections Fig. 49 - RTU-MP T-56Sensor ConnectionsConnecting Discrete Inputs Filter Status Fig. 51 - RTU-MP /Indoor CO2 Sensor33ZCSENCO2 Connections Fig. 52 - RTU-MP /Outdoor CO2 SensorCommunication Wiring - Protocols General Fig. 53 - RTU-MPSW3 Dip Switch SettingsFan Status Remote OccupancyLocal Access RTU-MPTroubleshooting Communication LEDsFig. 54 - BACview6 Handheld Connections 50TCTable 10 - LEDs 50TCStep 11 - Adjust Factory-InstalledOptions Step 12 - Install AccessoriesFig. 55 - EconoMi$ert IV Wiring EconoMi$er IV Occupancy SwitchNOTE See page 38 for table legend and notes Table 11 - Unit Wire/MOCP Sizing Data50TC Table 11 - Unit Wire/MOCP Sizing Data cont 50TCLegend for Table 50TC50TC 50TC Catalog No 50TC---C02SIEdition Date 11/09 Replaces NEW