Hitachi RAS-4-HNCE - Page 185

7. Test run
171
SMGB0079 rev.0 - 01/2013
7

Remote control switch
indication
Unit condition Wrong portions
Inspection points after power
source OFF
The operation lamp
ickers. (1 time/1 sec.)
and the unit number and
alarm code 03 icker.
The unit does not start.
The power source of
outdoor unit in not turned
ON.
The connecting wires of
operating line are inco-
rrect or loosened.
1 Connecting order of each ter-
minal boards.
2 Screw fastening of each termi-
nal boards.
N O T E
RecoveringmethodofFUSEfor
operatingcircuit.Thereisafuse
(FUSE4 on indoor unit PCB1,
EF1 on outdoor unit PCB1) to
protect operating circuit on the
PCB, when the power lines are
connected to operating lines. If
fuseismelted,operatingcircuit
can be recovered once by set-
ting the dip switch on the PCB
asshownin
The operation lamp ic-
kers. (1 time/2 sec.)
The unit does not start.
Remote control cable is
broken.
Contact of connectors is
not good.
The connection of remote
control cable is incorrect
This is the same as item
 1
and 2
Indication of icker ex-
cept above
The unit does not start, or start once
and then stops
The connection of ther-
mistor or other connec-
tors are incorrect. Trip-
ping of protector exists,
or else.
Check by the abnormality mode
table in the Technical Catalogue
(Do it by service people).
The operation lamp
ickers. (1 Time/1s)
Unit number
00, alarm
code dd and unit code
E00 icker
The unit does not start.
The connection of the
remote control cable
between indoor units is
incorrect.
Check by the abnormality mode
table in the Technical Catalog (Do
it by service people).
Back to
 after checking

Instructions for the recovery when the fuse of the transmission
circuit is blown out:
1 Correct the wiring to the terminal board.
2 Set pin 2 of DSW7 on the indoor units PCB to ON
Only for RPK-(0.8-1.5): set DSW7 on the indoor unit PCB
ON
Except RPK(0.8/1.5) Only RPK-(0.8/1.5)
ON
OFF