Hitachi RAS-2-HVNP - Page 394

10. Servicing
380
SMGB0079 rev.0 - 01/2013
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.