Hitachi RAS-4-HNC - Troubleshooting

7. Test run
174
SMGB0079 rev.0 - 01/2013
9
To finish the test run, press “
” (run/stop) again or pass
over the set test run time. When changing the test run time,
press “
” or “ ” to select “T-RUN TIME”. Then, set the test
run time (30 to 600 minutes) by pressing “
” or “ ”
Test Run: 2 units
MODE
SPEED
MED
COOL
LOUV.
SEL. ADJ
T-RUN TIME 510MIN
STOP
-
The RUN indicator on the remote control switch ashes
when some abnormalities such as protection devices
activated occur during the test run as well as the RUN
indicator (orange) on the indoor unit ashes (0.5 second
ON/ 0.5 second OFF). Additionally, the alarm code,
the unit model code and connected number of indoor
units will be displayed on the LCD as shown in the
figure below. If the RUN indicator on PC-ARF flashes
(2 seconds ON/ 2 seconds OFF), it may be a failure in
the transmission between the indoor unit and the remote
control switch (loosening of connector, disconnecting
wiring or breaking wire, etc.). In this case, check the
item 8.3 “Alarm Code” and perform for troubleshooting.
Consult to authorized service engineers if abnormality
can not be recovered.
SEL. OP MODE
MODEL : b .02
Alarm Code:
22
01-02
ALM RST
ADDR
ENT.
OK
Refrigerant Cycle No.
of Indoor Unit which
Abnormality Occurs
Indoor Unit No.
which Abnormality Occurs
MODEL : b . 02
Alarm Code:
22
Alarm Code No.
Total No. of Indoor Unit in
Same Refrigerant Cycle as
One that Abnormality Occurs
01 - 02
Unit Model Code