Danfoss Turbocor TT Series

6. ContinuetoSection4.11.2.43-PhaseMainVoltageInputTerminalBlockInstallation-TTS300/TGS230
onpage104.
4.11.2.3 3-Phase Main Voltage Input Terminal Block Removal - TTS/TGS/TTH/TGH (Except TTS300/TGS230)
1. Disconnectthethree(3)connectorsoftheSoftStartAC/DCharnessfromthebusbars.
2. Removethethree(3)fastenersthatsecuretheACBusBarstotheSCRs.ForRevisionFandearlier
compressors,refertoFigure4-82InputTerminalBlockRemoval-TTS/TGS/TTH/TGHRev.FandEarlier
(ExceptTTS300/TGS230)andforRevisionHcompressors,refertoFigure4-83InputTerminalBlock
Removal-TTS/TGS/TTH/TGHRev.H(ExceptTTS300/TGS230)onpage104forthisandthefollowing
three(3)steps.
3. Removethesix(6)fastenersthatsecurethethree(3)ACBusBarstotheTerminalBlock.
4. RemovetheACBusBars.
NOTE
Iftheterminalblockisbeingremovedtoaccessothercomponents,itisnotnecessarytoremovetheACBusBarsfromtheterminalblock
onRevFandearliercompressors-theterminalblockandbusbarscanberemovedasanassembly.OnRevHcompressors,thecenterAC
BusBarmustberemovedtoaccessamountingfastenerfortheterminalblockbutthetwo(2)outerbusbarscanremainattached.

5. RemovethefastenersthatsecuretheTerminalBlocktothecastingandremovetheTerminalBlock.
a. RevFandearliercompressorsusetwo(2)M5x45fastenersthatattachtheTerminalBlocktothe
compressorhousing.
b. RevHcompressorsusethree(3)fasteners;itusesthesametwo(2)aslistedaboveandthereisan
additionalM6x16fastenerthatislocatedatthebackcenteroftheTerminalBlock(underthecenter
ACBusBar).ThisfastenersecurestheTerminalBlocktotheSCRCoolingManifold.
6. Removethetwo(2)spacersiftheTerminalBlockistobereplacedwithanewone.
7. ContinuetoSection4.11.2.53-PhaseMainInputTerminalBlockInstallation-TTH/TGH/TTH/TGH
(ExceptTTS300/TGS230)onpage105.
Figure 4-82 Input Terminal Block Removal - TTS/TGS/TTH/TGH Rev. F and Earlier (Except TTS300/TGS230)
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