Hitachi UTOPIA RAS-4HVRP2E - Page 192

9 Servicing
RAS-(4-6)H(V)(R/N)(C/P)2E
SMGB0136 rev.0 - 07/2021
190
6 Identify and disconnect the compressor wires and the thermostat -2- in the terminal box on top of the compressor.
7 Remove the crankcase heater -4-.
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2
4
3
8 Protect the nearest thermistor -5- with a wet cloth.
9 Close the check joints -2- and -6-.
10 Charge the check joint -1- with nitrogen and rell the compressor piping.
? NOTE
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.
11 Heat the brazed connection -4- between the compressor and the pipes with a brazing unit until the brazing is undone.
12 Remove the suction pipe and discharge pipe from the compressor -3-.
6
1
4
2
3
5
13 Seal the suction and discharge pipes with a tape to protect the compressor from dust.
14 Remove the 2 nuts -1- which x the compressor.