Hitachi RAS-(2-6)HVNP1(E), Service Manual

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7 Test run
198
SMGB0087 rev.0 - 12/2013
8 For SET-FREE Series: According to the label “Checking of Outdoor Unit by 7-Segment Display on PCB1” attached
to the rear side of the front cover of the outdoor unit, check temperature, pressure and the operation frequency, and
connected indoor unit numbers by 7-segment displays.
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 flashes when some ab-
normalities such as protection devices activated occur during the test run
as well as the RUN indicator (orange) on the indoor unit flashes (0.5 se-
cond 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 con-
nector, disconnecting wiring or breaking wire, etc.). In this case, check
the item
“8.2.2 Alarm codes for the outdoor and indoor units” and perform
for troubleshooting. Consult to authorized service engineers if abnorma-
lity can not be recovered.
SEL. OP MODE
MODEL : b .02
Alarm Code:
22
01-02
ALM RST
ADDR
ENT.
OK
: b . 02
:
22
01 - 02
Refrigerant cycle number
of indoor unit which
abnormality occurs
Indoor unit number which
abnormality occurs
Alarm code number
Unit model code
Total number of indoor unit in
same refrigerant cycle as one
that abnormality occurs
Alarm code
MODEL