Carrier 50TCQD14 Installation Instructions Manual

Also see for 50TCQD: Installation instructions

Contents

25HEATERMOUNTINGBRACKETHEATERMODULE(LOCATION 2)HEATERMODULE(LOCATION 1)SINGLE POINTBOXMOUNTINGSCREWSINGLEPOINT BOXHEATERCOVERSMANUAL RESETLIMIT SWITCHDISCONNECTMOUNTINGLOCATIONC10029Fig. 39 -- Typical Component LocationSingle Point Boxes —When heaters are installed, power wiring to both heatersand the rest of the unit is connected via the single pointbox accessory, which will be installed directly under theunit control box, just to the left of the partition separatingthe indoor section (with electric heaters) from the outdoorsection. The single point box has a hinged access cover.See Fig. 40. The single point box also includes pigtails tocomplete the wiring between the single point box and theunit’s main control box terminals. Refer to the accessoryheater and Single Point Box installation instructions fordetails on tap connections.ALLIED PAMODEL NO.ERIAL NO.CORP.OD22.23123ISTED AIRNDITIONINGUIP ACCESS346N.P / N 2- 5610-4 REV11 1321 23CONTROLBOXBUSHINGSINGLEPOINT BOXMOUNTINGSCREWSFOAMBUSHINGDRIP BOOTBRACKETMOUNTINGSCREWSHEATERRELAYSPOWERWIRESHEATERMOUNTINGSCREWSC14253Fig. 40 -- Typical Single Point InstallationHeater and Supplementary Fuses —When the unit MOCP device value exceeds 60--A,unit--mounted supplementary fuses are required for eachheater circuit. These fuses are included in accessorySingle Point Boxes, with power distribution and fuseblocks.All fuses on 50TCQ units are 60--A. (Note that all heatersare qualified for use with a 60--A fuse, regardless of actualheater ampacity, so only 60--A fuses are necessary.)Heater Low--Voltage Control Connections —One or two heaters can be installed in the unit. Use thewiring procedure listed below for each heater asdetermined by the number of stages in the heater.Single Stage Heaters: Single--stage heaters will have anorange and a brown control wire. Connect these to theorange and brown wires located on TB4.Two Stage Heaters: Two--stage heaters will have orange,purple, red and brown wires. The orange and the purpleare the control wires and the red and brown wires feed thesafety circuit. Connect both the orange and the purplewires to the orange wire locations of TB4. Connect thered and brown wires to red and brown wires on TB4. Ifmore than one heater is installed, repeat the wiringprocedure for the second heater. The 3 locations acrossthe top of TB4 do allow a switch to be installed in serieswith some of the heaters in order to add additional heatercontrol.