Hitachi RAS-4-HNCE - Page 427

10. Servicing
413
SMGB0079 rev.0 - 01/2013
10
1. Thermistor holder
2. Holder
3. Td Thermistor
4. Thermistor xing plate
5. Rubber cap Th Thermistor
6. Indication of terminal number
7. Terminal box cover
8. Compressor
9. Compressor wires
10. Fix it with screw
11. Compressor wires (3 wires)
A. Details for compressor terminals
N O T E
• Compressorpipingmust beconnectedbybrazing. MAKESUREthatanyammablematerialisnotaround
beforeheatingwithburnerfortheoilinsidethepipingmayameup.
• Donotexposetherefrigerantcycletotheatmosphereforalongperiodtoavoidmoistureordustintothecycle.
Besuretoreplacethecompressorimmediatelyafterremoving.Sealthesuctionanddischargepipeswhenthe
refrigerantcycleisleftunattachedforalongperiod.
• Removethecapofnewcompressorrightbeforethereplacement.Beforemountingthecompressorsealthe
suctionanddischargepipeswithatapetoprotectthecompressorfromdust.Removethetapewhenblazing
thepipe.
• Forpipingat reassemblingensurethatthe compressorterminalnumbersandwiringmarkband codesare
matched.Incorrectwiringnumbersmayresultininverserotationanddamageofthecompressor.
6 Remove the suction pipe and discharge pipe from the compressor.
N O T E
Besuretoseparatetheblazingburneramesufcientlyfromthewiresandelectricalcomponentsaround
thebrazedpartinordertoavoidburning.