Danfoss Turbocor TT Series

6. ContinuetoSection4.21.5DCCapacitorBusBarAssemblyGeneralInstallationSteps.
4.21.4.3 DC Capacitor Bus Bar Assembly Installation - TTS300/TGS230
1. PositiontheDCBusBarandCapacitorAssemblyintoplace.RefertoFigure4-182CapacitorAssembly
Removal-TTS300/TGS230onpage170.
2. LooselyinstalltheSnubberCapacitorstotheInverternotingthelegorientation.RefertoFigure4-180
SnubberCapacitorRemoval-TTS300/TGS230onpage169.
3. LooselyinstalltheDCBusBarstotheSCRs.RefertoFigure4-179DCBusBarandSoftStartHarness
Removal-TTS300/TGS230onpage168.forthisandthefollowingstep.
4. LooselyinstallDCBusBarstotheDCBusAssembly.
5. Startingfromthesideclosesttothecapacitors,torquetheM6x16SnubberCapacitorfastenersto7Nm
(62in.lb.).
6. ConnecttheDC+andDC-oftheSoftStartharnesstotheDCbusassemblynotingtheorientationand
torqueto10Nm(7ft.lb.).RefertoFigure4-178SoftStartCableHarnesstoDCBusonpage167.
7. Torquethesix(6)SCRfasteners,tosecurethetwo(2)SCRDCBusBars,to5Nm(44in.lb.).
8. Torquethetwo(2)CapacitorDCBusBartoSCRBusBarfastenersto10Nm(7ft.lb.).
9. Placethecapacitormembrane,foam-sideup,underneaththemaincompressorhousingandthen
InstallthenylonnutstothebaseoftheDCCapacitorBusBarAssembly,andtorqueto7Nm(62in.lb.).
RefertoFigure4-181CapacitorNutRemoval-TTS300/TGS230onpage169.
10. ConnecttheSCRGatecableharnesstotheSCRsnotingitsorientation.RefertoFigure4-140SCR
Connections-TTS300/TGS230onpage141.
11. ContinuetoSection4.21.5DCCapacitorBusBarAssemblyGeneralInstallationSteps.
4.21.4.4 DC Capacitor Bus Bar Assembly Installation - TTS/TGS/TTH/TGH (Except TTS300/TGS230)
1. PositiontheDCBusBarandCapacitorAssemblyintoplace.
2. LooselyInstallthesix(6)DCbusM8x20fastenerstotheSCRs.
3. LooselyinstalltheSnubberCapacitorstotheInverternotingthelegorientation.
4. Startingfromthesideclosesttothecapacitors,torquetheSnubberCapacitorsto7Nm(62in.lb.).
5. Torquethesix(6)M6x16SCRBusBarfastenersto5Nm(44in.lb.).
6. Placethecapacitormembranefoam-sideup,underneaththemaincompressorhousingandinstallthe
nylonnutstothebaseoftheDCCapacitorBusBarAssembly,torqueto7Nm(62in.lb.).
7. InstalltheSCRGateCablesontotheSCRs.RefertoSection4.16.2.2SoftStartSCRGateCable
Installationonpage130.
8. InstalltheMainsACbusbarassembly.
9. ContinuetoSection4.21.5DCCapacitorBusBarAssemblyGeneralInstallationSteps.
4.21.5 DC Capacitor Bus Bar Assembly General Installation Steps
1. InstalltheSoftStart.RefertoSection4.14.6SoftStartInstallation(Closed-Top)onpage121.
2. Installthetopcovers.RefertoSection4.1CompressorCoversonpage52.
3. Returnthecompressortonormaloperation.
4.21.6 DC Capacitor Bus Bar Assembly Torque Specifications

Table 4-33 DC Capacitor Bus Bar Assembly Torque Specifications
Description Nm Ft.Lb. In.Lb.
SoftStartDC+&DC-toDCBusBolt/nut(TTS300/TGS230only) 10 7 89
DCCapacitorBusBartoSCRBusBarBolt(TTS300/TGS230only) 10 7 89
DCBusBarstoSCRfastener,M6x16(TTS300/TGS230only) 5 - 44
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