Hitachi RAS-2-HVNP Service Manual page 187

7. Test run
b. Select "Test Run" and press "OK". The test run settings will be
displayed.
NOTE
When "00" is indicated, the auto-address function may be performing.
Cancel "Test Run" mode and set it again.
4 The total number of the indoor units connected is indicated
on the LCD (liquid crystal display). The case of the twin
combination (one (1) set with two (2) indoor units) is
indicated "2 units", and the triple combination (one (1) set
with three (3) indoor units) is indicated "3 units".
c. If the indicated number is not equal to the actual connected number of indoor unit, the auto-address function is not
performed correctly due to incorrect wiring, the electric noise or etc. Turn OFF the power supply and correct the
wiring after checking the following points; (Do not repeat turning ON and OFF within 10 seconds.)
Power supply for indoor unit is not turned ON or incorrect wiring.
-
Incorrect connectionn of connecting cable between indoor u nits or incorrect connection of controller cable.
-
Incorrect setting of rotary switch and dip switch (the setting is overlapped) on the indoor units PCB.
-
d. Press " " (run/stop) to start the test run.
e. Press " " and set each item.
5 Press " " (run/stop). Start the test run when indicatin
the air flow volume "HIGH" (default setting) and light the
operation lamp. At this time, 2-hour OFF timmer will be set
automatically..
Press " " or " ", select "LOUV." and select "
6
swing) by pressing " " or " ". The auto swing operation
will be started. Check the operating sound at the louvers. If
abnormal sound is not generated, press " " or " " again to
stop the auto swing operation.
7 The temperature detections by the thermistors are invalid though the protection devices are valid during the test run.
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.
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SMGB0079 rev.0 - 01/2013
Test Run Setting: 2 units
MODE
SPEED
LOUV.
T-RUN TIME 120MIN
Test Run Setting: 00 unit
MODE
SPEED
LOUV.
T-RUN TIME 120MIN
Test Run Setting: 2 units
MODE
SPEED
LOUV.
T-RUN TIME 120MIN
Test Run: 2 units
MODE
SPEED
LOUV.
T-RUN TIME 120MIN
Test Run: 2 units
" (auto
MODE
SPEED
LOUV.
T-RUN TIME 120MIN
COOL
MED
SEL. ADJ RUN RTN.
COOL
MED
SEL. ADJ RUN RTN.
COOL
MED
SEL. ADJ RUN RTN.
COOL
HIGH
SEL. ADJ STOP
COOL
HIGH
SEL. ADJ STOP
7