Danfoss TTS400

9. Removethethree(3)high-powerfeedthroughsusinga36mmwrench.
10. Removethethree(3)high-powerfeedthroughO-ringsfromtheMainhousingiftheydidnotcomeout
withtheoldfeedthroughs.
11. Inspectthesealingareaforanyresidueordebrisandcleanthethreadswithalint-freeclothifneeded.
4.23.5.8 High-Power Feedthrough Installation
1. Cleanthefeedthroughmatingsurfaceswithalint-freecloth.Inspectthesealingareaforanydamage.
2. Verifythattheoldhigh-powerfeedthroughO-ringshavebeenremoved.
3. LubricateandinstallnewO-ringsontotheHigh-PowerFeedthroughs.

• • • CAUTION • • •
BesuretofullyseattheO-ringintothegroveinthefeedthrough.FailuretodothiscanresultindamagetotheO-ringwhiletightening.
4. Finger-tightentheHigh-PowerFeedthroughsintotheMainhousingandthentorquetospecification.
ContinuetoStep5forthePPSHigh-PowerFeedthroughs.ContinuetoStep7fortheStainless-Steel
High-PowerFeedthroughs.
5. SecuretheringterminalstothePPSHigh-PowerFeedthroughsusingtheM10x16fastenersfromthe
inside.
6. OncetheM10x16fastenersarefingertight,torquethemto14Nm(10ft.lb).ContinuetoStep9.
• • • CAUTION • • •
Holdthehigh-powerfeedthroughusinga36mmwrenchwhileapplyingtorquetotheM10fastenerstopreventlooseningorover
torqueingthefeedthroughassembly.

7. SecuretheringterminalstotheStainless-SteelHigh-PowerFeedthroughsusingtheM10nutsand
washersfromtheinside.
8. Oncethenutsarefingertight,torquethemto15.5Nm(11.5ft.lb).ContinuetoStep9.

• • • CAUTION • • •
WhiletorqueingtheHigh-PowerFeedthroughNuts,itisimportanttoholdtheinnernutwithawrench.Failuretodosocouldplacean
excessiveloadonthefeedthroughcausinginternaldamage.Also,thefeedthroughitselfcouldmovewhichcouldallowittoloosenorbe
overtorqued.
9. InstallwiresontheinnerthermistorterminalsandtheninstalltheCoverPlate.Referto4.23.5.6Motor
CoverPlateInstallationonpage199.
10. Leaktestandevacuateinaccordancewithstandardindustrypractices.
11. Connectthetwo(2)connectorstothethermistorsensorfeedthrough.RefertoFigure4-227
ConnectiontoStatoronpage203.

Page 202 of 294 - M-SV-001-EN Rev. H 1/23/2023