Hitachi RPI-0.8FSG1 Service Manual page 175

Inverter-driven multi-split system heat pump air conditioners
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(4) Removing Other
Before this work, remove the center front panel cover according to the item 2.1.2 "Removing Front
Service Panel".
(a) Disconnect the cables connected to each electrical part.
(b) Remove screws for the electrical parts mounting.
NOTES:
1. Do not touch the electrical part of the PCB.
2. Do not apply a great force to the PCB.
This example figure is 380-415V 50Hz
and 380V 60Hz.
(5) Removing ISPM(1)
Before this work, remove the service panel according to the item 2.1.2 "Removing Front Service
Panel". Check to ensure that LED201 (Red) of the ISPM(1) is off.
(a) Loosen two (2) screws fixing the inverter electrical box cover and remove it.
NOTE:
Do not remove screws for the inverter electrical box cover so that it does not fall off.
(b) Disconnect the connectors and cables connected to the ISPM(1).
(c) Remove four (4) screws fixing the ISPM(1) and remove it.
NOTE:
Do not apply a great force to the PCB
otherwise the ISPM(1) will be damaged.
Do not touch the any electrical parts during LED201 (Red) on ISPM(1) is ON.
If touched, electric shock will occur.
TURN OFF all power source switches.
Reactor
R1
S1
CN201
PD
P1
P
N
RB
C
COM2
MAIN1
SUB1
COM1
ISPM
AC Chopper
Fixing Screw for ISPM1
Tool
Phillips Screwdriver, Nippers
Fuse for Fan Motor (MOF2)
Magnetic Contactor
Noise Filter
Capacitor
for Fan Motor
Smoothing Capacitor
(MOF2)
for Inverter
Tool
Phillips Screwdriver, Pincher
ISPM1
CN207
CN206
Control Cable
for PCB
Control Cable
for ISPM2
SERVICING
(2.1 Outdoor Unit)
Fuse for Inverter
Compressor (MC1)
L1
L2
L3
N
10A
Resistor
Terminal Board
for Power Source
2-35

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