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10. ConnectthecompressorcableharnesstotheIGVMotorfeedthrough,suctionanddischargesensors,

andSCRTemperaturesensor.

11. RotatetheRetainerClipuntilitisdirectlyabovetheIGVConnectorandtorquetheM5x16IGV

FeedthroughFastenerto25Nm(18ft.lb.).

12. InstalltheDCBusBarandCapacitorassemblyandSnubberCapacitors.RefertoSection4.21.3DC

CapacitorBusBarAssemblyRemovalandInstallationonpage168.

13. InstalltheTerminalBlockAssembly.RefertoSection4.11.23-PhaseMainVoltageInputTerminalBlock

RemovalandInstallationonpage102.

14. Connectthethree(3)ACwiresfromtheSoftStartAC/DCcableharnesstotheappropriateACbusbar.

Inverter General Installation

1. ConnecttheMotorSensorwires.

2. ConnecttheSCRGatecableharnesstotheSCRsnotingitsorientation.RefertoSection4.16.2SoftStart

SCRGateCableRemovalandInstallationonpage128.

3. ConnecttheInvertercableharnesstothetopoftheInverter.

4. InstallthemainsinputcablestotheTerminalBlockandtorqueto21Nm(15ft.lb.).

5. InstalltheSoftStart.RefertoSection4.14.3SoftStartRemovalandInstallationonpage117.

6. Installthetopcovers.ReferSectionto4.1CompressorCoversonpage52.

7. Returnthecompressortonormaloperation.

4.22.7 Inverter Card Replacement

ThissectiondetailsthestepstoremoveandinstalltheInverterControlCard.IftheInverterprovestobeworking

properlyandtheInverterControlCardhasbeenconfirmedtohavefailed,followtheremovalandinstallationsteps

fortheInverterControlCard.

ThereplacementInverterControlCardsareonlyforthe613Inverter.RefertoBulletinB-CN-107-ENRevBforfurther

detailsregardingtheapplicabilityofthecontrolcards.

4.22.7.1 Inverter Card Removal

1. IsolatecompressorpowerasdescribedinSection1.8ElectricalIsolationonpage22.

2. RemovetheSoftStart.RefertoSection4.14.3SoftStartRemovalandInstallationonpage117.

3. IfusingtheInvertertester-RemovetheDCCapacitorandBusAssembly.RefertoSection4.21.3DC

CapacitorBusBarAssemblyRemovalandInstallationonpage168.

NOTE

Theabovestepisonlynecessarywhenusingtheinvertertester.

4. DisconnecttheribboncablefromtheInverter.

• • • CAUTION • • •

DonotremovethefastenersthatsecuretheInvertertothecompressormainhousing.



5. Removethesix(6)DriverBoardfastenersusingaT15Torxbit.Beginontheoutsideandworktowards

thecenter.RefertoFigure4-210DriverBoardFastenersonpage189.



Page 188 of 294 - M-SV-001-EN Rev. H 1/23/2023

Danfoss TTS350 User Manual

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