LG ARUM072BTE5 Installation Manual page 122

PRE-COMMISSIONING
Setting the Optional Modes
Integrated Test Run (ITR) (Fd7)
The algorithm tests the operation of all components and system functions. Using a batch file concept, the routine begins by asking the techni-
cian to enter the total refrigerant charge in kilograms.
Unlike previous versions of Multi V where the user selected heating or cooling mode for the Integrated Test Run function, Multi V 5 automatically
selects which mode to use based on outside air temperature.
Procedure
1. Connect a computer with LGMV software to the Master ODU.
2. Start the LGMV software.
3. Select ID7 on the Master outdoor unit seven segment display (SSD).
4. "INIT ITR" will be displayed (Initiate Integrated Test Run)
5. Use the SSD and the control buttons below it to enter the system refrigerant charge by weight in kilograms. The system refrigerant charge
is the sum of the field provided refrigerant charge and the factory refrigerant charge shipped with each outdoor unit.
See the specification tables in the Product Data section for the factory refrigerant charge in pounds.
Example:
ARUM432BTE5
• Consisting of (2) ARUM121BTE5 + (1) ARUM192BTE5
• Factory charge ARUM121BTE5 = 23.2 lbs each
• Factory charge ARUM192BTE5 = 30.9 lbs
• Field trim charge : 10.5 lbs
System refrigerant charge = (Factory charge of frame 1 + Frame 2 + Frame 3)+(Field-supplied Refrigerant)
System refrigerant charge = (23.2 + 23.2 + 30.9) + 10.5 = 87.8 lbs.
To convert the refrigerant charge from pounds to kilograms:
Kilograms refrigerant = pounds refrigerant x 0.453592
Kilograms refrigerant = 87.8 x 0.453592
= 3.983 kilograms
6. Press the confirm/accept button on the ODU under the SSD.
7. Observe the SSD displays "88" to confirm the ITR is running. The ITR will run for approximately 5 to 30 minutes. When "88" is no longer
displayed, the ITR has successfully completed.
8. If more than 30 minutes pass and "88" is still displayed, the ITR has failed. Contact your LG representative for technical assistance.
9. After a successful ITR, you can go to the LGMV Diagnostics tab, select Test Report, and save the .html data file. The report on the next
page is a sample ITR report.
If an error occurs with an indoor unit, operate that indoor unit in fan
mode, but make sure the auto address number of that indoor unit does
not display.
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Due to our policy of continuous product innovation, some specifications may change without notification.
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Multi V ITR Result Report
Follow the Procedure:
Save html file