Hitachi RCME-AH1, Service Manual

Page: 91 / 174

3. Servicing
Cycle components
SMGB0082 rev.1 - 07/2015
83
3
3.5 Cycle components
C A U T I O N
• All operations in the refrigerant cycle require to collect the refrigerant. In those cases proceed as explained in “3.5.3
Recovering the refrigerant”
D A N G E R
• Turn OFF all the power source switches and ensure that the module is totally stopped before to get inside.
• Be careful, some parts and components can be at high temperature.
3.5.1 Compressor removal

When Removing the Compressor
In order to access to the unit’s internal parts, remove the following covers and panels depending on access restrictions:
a. Remove the front cover as described in chapter ”3.4.3 Front cover (E-Box - compressor side)”.
b. Remove the panels of the left and right sides as explained in chapter “3.4.2 Panels on the left (2 panels) or right
side (2 panels).”
c. Remove the HEX cover as explained in chapter “3.4.4 Front cover (Hex lower cover)”.
Before any other operation, collect all refrigerant as described in section “Recovering the refrigerant by “Pump-down”
procedure”
4 Inside the unit, at the rear panel of the Ebox,
remove the connectors:
• At the bottom: The connectors QCN1 and
QCN2
• At the top right of the E-box: The connectors
QCN3, QCN4, QCN5, QCN7, QCN8-1, QCN8-
2 and QCN13
QCN7
QCN3
QCN5
QCN4
QCN8-1
QCN8-2
QCN13
QCN1
QCN2
5 Remove the 4 + 4 bolts at the flanges of the
suction pipe.
Bolt
Spring washer
Flange plate
Nut
Spring washer
Gasket
Flat washer
Flange
Flange
Suction pipe