Hitachi UTOPIA IVX PREMIUM Série Manuel D'installation Et De Fonctionnement page 42

Test running
Remote Control
Switch Indication
The operation lamp flick-
ers. (1 time/1 sec.) And
the Unit No. and Alarm
Code "03" flicker

The operation lamp flick-
ers. (1 time/2 sec.)
Indication of Flicker
except above
The operation lamp
Flickers. (1 Time/1s)
Unit No. 00 , Alarm
Code  and Unit Code
00 flicker
Back to after checking

Instructions fot the recovery when the fuse of the transmission
circuit is blown out:

1
Correct the wiring to the terminal board.
2
Set the 1st pin of DSW7 on the indoor unit PCB to ON.
16.2 TEST RUN FROM OUTDOOR UNIT SIDE
The procedure of test run from outdoor unit side is indicated be-
low. Setting of this DIP switch is available with the power source
ON.
Setting of Dip Switch (Before Shipment)
Switch for setting of Serivice Operation and Function
1 Test Run
2 COOL/HEAT
3 OFF (Fixed)
4 Manual Compressor stop
42
_PMML0251A_r2.indb 42
Unit Condition
The unit does not start.
The unit does not start.
The unit does not start, or start once
and then stops
The unit does not start.
DSW1
Setting ON: Heat Operation
PMML0251A rev.2 - 02/2013
Wrong Portions
The power source of Outdoor
Unit in not turned ON.
The connecting wires of operating
line are incorrect or loosened.
Remote control cable is broken.
Contact of connectors is not
good.
The connection of remote control
cable is incorrect
The connection of thermistor or
other connectors are incorrect.
Tripping of protector exists, or
else.
The connection of the remote
control cable between Indoor
Units is incorrect.
C A U T I O N
• Do not touch any other electrical parts when operating switch-
es on the PCB
• Do not attach or detach service cover when the power source
for the outdoor unit is ON and the outdoor unit is operated.
• Turn all DIP switches of DSW1 OFF when the test run opera-
tion is completed.
Inspection Points after
Power Source OFF
1
Connecting Order of each Terminal
Board.
2
Screw fastening of each Terminal
Boards.
N O T E
Recovering method of FUSE for oper-
ating circuit. There is a fuse (FUSE4
on Indoor Unit PCB1, EF1 on Outdoor
Unit PCB1) to protect operating cir-
cuit on the PCB, when the power lines
are connected to operating lines. If
fuse is melted, operating circuit can
be recovered once by setting the dip
switch on the PCB as shown in
This is the same as item  1 and 2
Check by the abnormality mode table in
the Technical Catalogue (Do it by serv-
ice people).
Check by the abnormality mode table in
the Technical Catalog (Do it by service
people).

06/02/2013 9:05:15