Hitachi RAW-35RHC, Руководство по обслуживанию

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5 Servicing
Indoor unit
SMGB0135 rev.0 - 06/2020 54
5.2.3 Replacement the PCB
1 Pull backwards to remove the ebox cover.
2 Unplug the following cables:
Id. Description
1 CN15 Relay-AR
2 CN4 Thermistor
3 CN20 LCD Controller
4 TB1 Transmission wiring
5 Earth
1
3
4
5
2
3 Clamp the middle part of the spacers (x3) -1- with long-
nose pliers and remove the PCB toward front side.
1
?
N O T E
When install new one, proceed in reverse way than disassembling.
5.2.4 Replacement of the electrical heater
1
Drain the DHW tank as explained in section
“Draining
of the DHW” .
2 Remove the screws (x4) -1- of the heater cover.
1
3
Unscrew and disconnect the electric wires (N and L)
-1-
from the heater
-2-
.
1 2
4 Unscrew and remove the electric heater from the tank.
?
N O T E
When install new one, proceed in reverse way than disassembling.