Hitachi RAS-3HVRNM2, Инструкция по установке и обслуживанию, Страница: 52 / 58

2-124 TC-12001
OUTDOOR UNIT
48 P5414950-rev.1
10.2 Test Run
This test run method is for the wired remote control
switch (Model: PC-ARF.) The details for the
operating PC-ARF should be referred to “Installation
& Maintenance Manual” of itself (attached with PC-
ARF.)
(1) Check to ensure that stop valves (gas and
liquid) of the outdoor unit are fully opened.
(In the case of combined outdoor units, check
to ensure that all stop valves of the outdoor
units are fully opened.)
(2) Perform the test run of indoor units one by one
sequentially, and then check the accordance of
the refrigerant piping system and the electrical
wiring system. (If the multiple indoor units are
operated simultaneously, the system can not
be inspected the system accordance.)
(3) Perform the test run according to the following
procedure. Ensure that the unit is operated
without any problem.
NOTE:
In the case that 2 remote control switches (main
and sub) are installed to the system, perform
the test run from the main remote control
switch.
(a) Press and hold “ “(menu) and “ “(return)
simultaneously for at least 3 seconds. The
test run menu will be displayed.
O
When using other remote control switches
(PC-AR, PC-LH3A or PC-ARH, etc.),
perform the test run according to the
attached Installation & Maintenance
Manual of each.
(b) Select “Test Run” by pressing “ “ and
press “OK”. The test run screen will be
displayed.
Test Run Screen
O
If the indicated number is not equal to the
actual connected number of indoor units,
the auto-address function is not performed
correctly due to incorrect wiring, the
electric noise, 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.)
* The power supply for the indoor unit is
NOT turned ON or the incorrect wiring.
* Loose Connection between Indoor
Units or Remote Control Switch
* Incorrect Setting of Indoor Unit Address
(The indoor unit address is overlapped.)
(c) Start Test Run.
O
Press “ ” (run/stop). The test run
operation will be started. The operation
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direction and the test run time are
available to set at the test run screen.
Select the item by pressing “
“ and set
the detail by pressing “ “.
The default setting of the test run time is
set 2-hour OFF timer.
O
Check the temperature conditions.
The unit operation can not be performed if
the conditions are out of range.
Refer the working range to item 10.1 (E).
< Example >
The cooling operation is not operated if
the outdoor temperature is less than -5
o
C
DB.
(d) Press “ ” or “ ”, select “LOUV.” and select “
” (auto swing) by pressing “ ” or“ ”.
The auto swing operation will be started.
Check the operating sound at the louvers.
If abnormal sound is generated from louvers,
it may be a deformation of the air panel due
to incorrect installing. In this case, install
the air panel again without a deformation.
If abnormal sound is not generated, press
“ ” or “ ” again to stop the auto swing
operation.
(e) The temperature detections by the
thermistors are invalid though the protection
devices are valid during the test run. If an
alarm occurs, refer to Table 10.2, Alarm
Code and perform for troubleshooting.
Then perform the test run again.
O
The total number of 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”.
NOTE:
When “00 unit” is indicated, the auto-
address function may be performing.
Cancel “Test Run” mode and set it again.
Test Run Setting: 2 units
MODE : COOL
SPEED : MED
RUN RTN. SEL. ADJ