176 of 282 M-SV-001-EN Rev. G
Figure 4-214 SCR Connections - TTS/TGS/TTH/TGH Rev. H (Except TTS300/TGS230)
3. Remove the Terminal Block and AC Mains input Bus Bars. Refer to "4.12.2 3-Phase Main Voltage
Input Terminal Block Removal and Installation" on page 98.
a. For Revision F and earlier compressors, remove the Terminal Block and AC Mains Input
Bus Bars as an assembly by removing the two (2) M5x45 Terminal Block Mounting
fasteners and the three (3) M8x20 AC Bus Bar to SCR fasteners. Refer to "Figure 4-215
Terminal Block and AC Mains Input Bus Bar Removal - TTS/TGS/TTH/TGH Rev. F and Earlier
(Except TTS300/TGS230)".
b. For Revision H compressors, leave the Terminal Block in place but remove the AC Mains
Input Bus Bars. Refer to "Figure 4-216 Input Terminal Block Removal - TTS/TGS/TTH/TGH
Rev. H (Except TTS300/TGS230)" on page 177.
Figure 4-215 Terminal Block and AC Mains Input Bus Bar Removal - TTS/TGS/TTH/TGH Rev. F and Earlier (Except TTS300/
TGS230)
AC Input to SCR
(3 places)
SCR to DC Bus
( -)
SCR Gate Cables to
Soft Start (3 places)
AC Bus Bar
Connectors
(3 places)
SCR to DC Bus
(+)
Terminal Block
Mounting
Fastener, M5x45
(2 places)
AC Bus Bar to SCR
Fastener, M8x20
(3 places)
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