Danfoss TTS400

4.12 Input Mains Bus Bars
ThissectionappliestoallcompressorswiththeexceptionofTTS300andTGS230models.
Figure 4-88 Input Mains Bus Bar Examples
4.12.1 Input Mains Bus Bar Removal
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4.12.1.1 General Mains Bus Bar Removal
1. IsolatethecompressorpowerasdescribedinSection1.8ElectricalIsolationonpage22.
2. DisconnectthemainsinputcablesfromtheTerminalBlock.
3. ForRevisionFandearliercompressors,refertoFigure4-89AC/DCBusBarConnectors-
TTS/TGS/TTH/TGSRev.Fandearlier(ExceptTTS300/TGH230)onpage109anddothefollowing:
a. RemovetheconnectorsoftheSoftStartAC/DCHarnessfromthebusbarsandliftawaytheSoft
StartAC/DCHarness.
b. Removethethree(3)M8x20fastenersthatsecuretheACBusBarstotheSCRs.
c. Removethesix(6)fastenersthatsecurethethree(3)ACBusBarstotheTerminalBlock.
d. RemovetheACBusBars.
4. ForRevisionHcompressors,refertoFigure4-90AC/DCBusBarConnectors-TTS/TGS/TTH/TGSRev.H
(ExceptTTS300/TGH230)onpage109:
a. Removethethree(3)M6x16fastenersthatsecuretheACBusBarstotheSCRs.
b. Removethethree(3)ringterminalsandliftawaytheSoftStartAC/DCHarness.
c. Removethesix(6)fastenersthatsecurethethree(3)ACBusBarstotheTerminalBlock.
d. RemovetheACBusBars.
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