Hitachi RPC-2.0FSR - Page 82

CONTROL SYSTEM
1-72
TCI-20007-rev.1
n
Actuation for Protection Instrument
Operation
Excessively High
Drain Water Level
Activation of
Protection Device
for I.U. PCB
B
RUN indicator Flashes
Overcurrent (>5A)
to Control Circuit
Power to I.U.
Transformer: OFF
Melted EF4,5
Light and LCD
are not indicated.
A
Melted Fuse
of EF1
Overcurrent to MC
Excessively
High Discharge
Gas Temp.
Increasing
High Pressure
to 4.15 MPa
Increasing
Temperature
at Inverter Fin
Excessively
Overcurrent to MOF
(DC Motor)
Overcurrent (>5A)
to Control Circuit
MD Operation: ON
Excessively High
Temp. of I. U. Fan
Motor
B
A
I.U.: Indoor Unit
O.U.: Outdoor Unit
A
B
Alarm of O.U. PCB
Melted
EFR1 , EFS1
ITI : Opened
FS :
Contact is opened.
PSH :
Contact is opened
Power to
Y52C : OFF
MC Operation: OFF
MOF1 MOF2
Operation: OFF
Power to
CMC : OFF
MIF Operation: OFF
YH2 :
Contact is closed.