Danfoss TTS400

Figure 4-165 Bus Bar Locations - TTS300/TGS230
11. Torquethesix(6)M6x16SCRtoSCRCoolingManifoldfastenersto5Nm(44in.lb.).
12. Torquethesix(6)M6x16SCRBusBarfastenersto5Nm(44in.lb.).
13. Torquethetwo(2)CapacitorDCBusBartoSCRBusBarfastenersto10Nm(7ft.lb.).
14. Mountthethree(3)fuseblockassembliesontopoftheTerminalBlockAdapter,theninstallthetwo(2)
fastenersforeachofthethree(3)fuseblockassembliesandtorqueto4Nm(35in.lb).
15. Installthethree(3)M6x16fastenersthatconnectthefast-actingfusestotheSCRsandtorqueto5Nm
(44in.lb).
16. InstallthemainsinputcablestotheTerminalBlockandtorqueto20Nm(15ft.lb.).
17. ContinuetoSection4.18.3.6SCRGeneralInstallationonpage156.
4.18.3.5 SCR Installation - TTS/TGS/TTH/TGH (Except TTS300/TGS230)
1. CleanthecontactsurfacesofSCRCoolingManifold.
2. IftheSCRsaretobereused,cleantheirmountingsurface(backside)toensurethesurfaceisfreeofany
contaminants.
3. SpreadathinanduniformcoatofDowCorningSiliconeHeatSinkpaste(orequivalent)entirelyover
thebottomofeachSCRsurface.RefertoFigure4-166SCRHeatSinkPasteApplication-
TTS/TGS/TTH/TGH(ExceptTTS300/TGS230).
Figure 4-166 SCR Heat Sink Paste Application - TTS/TGS/TTH/TGH (Except TTS300/TGS230)
4. Installthethree(3)SCRs.
a. ForRevisionFandearliercompressors,finger-tightenthe12M6x16fasteners,thentightenina
crisscrosspatternintwo(2)stages.RefertoFigure4-167SCRTorqueSequence-TTS/TGS/TTH/TGH
Rev.FandEarlier(ExceptTTS300/TGS230)onpage156.

o
Stage1:Tightento2Nm(18in.lb.)

o
Stage2:Tightentoafinaltorqueof5Nm(44in.lb.)
b. ForRevisionHcompressors,tightenthesix(6)M6x16fastenersto5Nm(44in.lb).
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