Danfoss TTS350 - 4.13 Terminal Block Fuse Replacement

4.13 Terminal Block Fuse Replacement
TTS300/TGS230compressorshaveclassTfast-actingfusesinstalledintheTerminalBlock.
Figure 4-91 Terminal Block Fuse
4.13.1 Verification of Terminal Block Fuse
1. IsolatethecompressorpowerasdescribedinSection1.8ElectricalIsolationonpage22.
2. Setthemultimeterforresistancemeasurement.
3. Placeone(1)meterprobethelinesideofthefuseandtheotherprobeontheloadside.RefertoFigure
4-92TerminalBlockFuseTest.Theresistanceshouldbenogreaterthan2Ω.
Figure 4-92 Terminal Block Fuse Test
4. Continuefortheremainingtwo(2)fuses.
5. Replaceanyfusesthatreadopenorhavearesistancegreaterthan2Ω.
4.13.2 Terminal Block Fuse Removal and Installation

4.13.2.1 Terminal Block Fuse Removal
1. IsolatethecompressorpowerasdescribedinSection1.8ElectricalIsolationonpage22.
2. Removethe5/16-18fasteneronthelinesideofthefuse.
3. Removethe5/16-18nutfromtheloadsideofthefuse.
4. Removethefuse.

M-SV-001-EN Rev. H-1/23/2023 Page 111 of 294