Hitachi RAM-10MQ, Installation & Maintenance Manual

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27
8. Test Run
【
Before Test Run
】
●
Before test run, please re-confirm the installation whether there are problems, also confirm the following points.
●
In addition, please confirm it with the installation manual attached to the outdoor unit.
1) Refrigerant piping and the transmission cable if connected with a different refrigerant cycle, abnormalities will occur.
2) Please use the 500V electrical resistance tester to confirm the electrical parts between terminals and earth electrical
resistance must be more than 1M Ω . If not, the electrical part is not well insulated, please do not operate the unit. (Do not
supply power to the transmission wiring of terminal No.)
3) If the power supply wiring phase is in error, the unit will not be able to run, and the remote control will display abnormal
code
【
05
】
. At this time, according to the electrical box attention nameplates, check the primary side of the phase and
Implement the phase replacement work. Ensure the power supply is cut off when performing the work above.
4) Has the oil heater of the outdoor unit been powered. (Before using, please turn on the power for more than 12 hours.)
【
Test Run
】
●
When installation is completed, perform test run according to the following procedure, and make sure that no abnormality
exists, then hand over the system to the customer.
1) Outdoor unit the gas stop valve and the liquid stop valve, make sure full open state.
2) Perform the test run of the indoor units one by one in order. Make sure that electrical wiring and the refrigerant piping are
correctly connected. (When operating more than one indoor unit, the consistency could not be checked.)
3) Please follow the following procedure to perform test run, and make sure that no abnormality exists.
1.Press the "MODE" and the "CHECK" buttons together for more than 3 seconds. The "TEST RUN" and the counting
number of the connected units are indicated on the remote control switch.
●
When cooling operation test run, it should be at room temperature DB 21°C, WB 15.5°C, outside air temperature DB
-5°C or more. (Outside air temperature below DB -5°C, air conditioner can not be operated.)
●
Using a remote controller to operate more than one indoor unit, check the connected number of indoor unit is indicated
on LCD. If no indication appears or the number of the units indicated is smaller than the actual number of the units,
some abnormalities exist, please confirm it again.
●
Press the "MODE" button again to set the desired mode of operation.
2.Press "RUN/STOP" switch.
●
The "TEST RUN" operation will be started. (The 2 hours OFF-TIMER will be set automatically, “OFF-TIMER” and "2HR"
will indicated on LCD.)
3.To end the test run, wait for 2 hours or push "RUN/STOP" button again.
Number of the Unit
0 1 2 3 4
…
10 11
…
63
Setting Timer
Display Left Two
Digit
01 02 03 04 05
…
11 12
…
64
Ref. Cycle NO.
0 1 2 3 4
…
10 11
…
63
Setting Timer
Display Right Two
Digit
01 02 03 04 05
…
11 12
…
64
●
Note
：
After the product stops operation, in order to recover the piping refrigerant to the outdoor unit, the compressor
continues to operate a period of time (most about 10 minutes). The same as in the test run, it is not the product failure or
abnormal.
●
During test run, the protection device will be activated by some abnormality, the controller's operation indicator will blink,
display "Alarm" (abnormality), while the setting temperature display will show alarm code.
●
Setting temperature and setting timer display:
●
At this time, please refer
to page 25 of the alarm code
to confirm the leading cause
and treatment. If it is unable to
handle, please contact
maintenance staff for assistance.
和發生異常室內機相同
冷媒系統的室內機台數
01
●
01 01
F
●
01
(
交互顯示
)
機種種類
(
本製品代號
)
顯示發生異常的
室內機冷媒
系統
顯示發生異常
的室內機機號
23
設定溫度
Setting Timer Display
Setting Temperature Display
Abnormality Indoor Unit
Refrigerant Cycle
Setting Temperature
Content of Abnormality
(Alarm Code)
Total Number of Indoor Units in the
Same Refrigerant cycle With the
Abnormal Indoor Unit
Abnormality
Occurred
Abnormality
Indoor Unit
(Display in sequence)
Unit Type (Unit Code)