Hitachi RAS-(3-6)HVRNM2E - Removing “W” Electrical Componets Surface; Removing Other Electrical Components

10 Servicing
371
SMGB0064 rev.0 - 08/2011
10

Removing “W” electrical componets surface
1 Remove the service cover according to the section Removing service cover, see on page 361 in this chapter.
2 Open the P-mounting plate by rotating 90 degrees to the left according to the section Opening electrical box (P-moun-
ting plate), see on page 367 in this chapter.
3 Use a screw driver to push and release the plastic holders retaining the “W” electrical components surface.
D A N G E R
• Check that the LED201 (red) located on the “W” surface PCB is OFF when opening the P-mounting plate.
• Do not touch the electrical components when LED201 (Red) located on the “W” surface PCB is ON in order to
avoid an electrical shock.
N O T E
• Identify the terminal numbers with mark band. When reassembling the terminals have to be connected to the
correct numbers . If incorrectly connected malfunctions or damages will occur.
• Check to ensure that the electrical wires will not be caught between the assembled electrical components and
the mounting plates when the “W” electrical components surface is reassembled.
D A N G E R
• Identify the terminal numbers with mark band. When reassembling the terminals have to be connected to the
correct numbers. If incorrectly connected malfunctions or damages will occur.
• In case of replacing control PCB set all the dip switches as the same position before replacing. If not mal-
function may occur. Refer to the manual attached with the service PCB.
• Do not apply strong force to the electric components and PCBs to avoid damage.

Removing other electrical components
1 Remove the service cover according to the section Removing service cover, see on page 361 in this chapter.
2 Open the P-mounting plate by rotating it to the left according to the section Opening electrical box (P-mounting plate),
see on page 367 in this chapter.
3 Check to ensure the LED201 (Red) of the inverter PCB is off when opening P-mounting plate.
4 Remove other electrical components according to the procedure below and the gures on Chapter 10.
D A N G E R
• Check that the LED201 (red) located on the “W” surface PCB is OFF when opening the P-mounting plate.
• Do not touch the electrical components when LED201 (Red) located on the “W” surface PCB is ON in order to
avoid an electrical shock.
N O T E
• Disconnect all the wires connected with the smoothing capacitor (CB CB1 CB2 CA).
• The wire has polar characters. Identify the wire mark band and the indication on the smoothing capacitor when
wire connecting.
• Remove the two (2) screws xing the smoothing capacitor and remove the smoothing capacitor.
• Disconnect all the wires connecting with the magnetic contactor (CMC1).
• Remove the two (2) screws xing the magnetic contactor and remove the magnetic contactor.
• Remove the four (4) screws xing the reactor and remove the reactor (DCL).
• Disconnect all the wires connected with the noise lter (NF1).
• Remove the noise lter by clamping the top of the holder (6 portions) with a pincher.
• Identify the terminal numbers with mark band. When reassembling the terminals have to be connected to the
correct numbers . If incorrectly connected malfunctions or damages will occur.