Carrier 50TCQA Installation Instructions Manual

Also see for 48TC*D: Service and maintenance instructions Installation instructions

Contents

15RACEWAYHOLE IN END PANEL (HIDDEN)C08027Fig. 22 -- Field Control Wiring RacewayElectric Heaters50TCQ units may be equipped with field--installedaccessory electric heaters. The heaters are modular indesign, with heater frames holding open coil resistancewires strung through ceramic insulators, line--break limitswitches and a control contactor. One or two heatermodules may be used in a unit.Heater modules are installed in the compartment belowthe indoor (supply) fan outlet. Access is through theindoor access panel. Heater modules slide into thecompartment on tracks along the bottom of the heateropening. See Fig. 23, Fig. 24 and Fig. 25.DISCONNECT MOUNTINGLOCATIONUNIT BLOCK-OFFPANELOUTDOORACCESS PANELINDOORACCESSPANELC08133Fig. 23 -- Typical Access Panel LocationNot all available heater modules may be used in everyunit. Use only those heater modules that are UL listed foruse in a specific size unit. Refer to the label on the unitcabinet for the list of approved heaters.Unit heaters are marked with Heater Model Numbers. Butheaters are ordered as and shipped in cartons marked witha corresponding heater Sales Package part number. SeeTable 2 for correlation between heater Model Number andSales Package part number.NOTE: The value in position 9 of the part number differsbetween the sales package part number (value is 1 or 3)and a bare heater model number (value is 0).Table 2 – Heater Model NumberBare Heater Model Number C R H E A T E R 0 0 1 A 0 0Heater Sales Package PNOIncludes:Bare HeaterCarton and packing materialsInstallation sheetC R H E A T E R 1 0 1 A 0 0DISCONNECTMOUNTINGLOCATIONEMT OR RIGID CONDUIT(FIELD-SUPPLIED)SINGLEPOINT BOXCENTERPOSTHEATERCOVERSHEATERMOUNTINGBRACKETHEATERMODULE(LOCATION 2)HEATERMODULE(LOCATION 1)SINGLE POINTBOXMOUNTINGSCREWBRACKET ANDCONDUITDRIP BOOTMAINCONTROLBOXCONTROL WIRE TERMINAL BLOCKMANUAL RESETLIMIT SWITCHC08134Fig. 24 -- Typical Component Location50TCQA