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• Actual inverter compressor speed
• Target inverter compressor speed
• Actual outdoor fan speed
• Target outdoor unit fan speed
• Actual superheat
• Inverter compressor current value
• Outdoor air temperature
• Actual high pressure/saturation temperature
• Actual low pressure/saturation temperature
• Suction temperature
• Inverter compressor discharge temperature
• Outdoor coil pipe temperature
• Liquid line pipe temperature
• Inverter compressor operation indicator
light
• Four-way reversing valve operation
indicator light
• Pressure graph showing actual low pres-
sure and actual high pressure levels
• Error code display
• Operating mode indicator
• Total number of connected indoor units (for
multi zone systems)
• Communication indicator lights
• Unit error code
• Indoor unit capacity
• Indoor unit operating mode
• Indoor unit fan speed
• Indoor unit room temperature
• Indoor unit inlet pipe temperature
• Indoor unit outlet pipe temperature
LG Monitoring View (LGMV) Diagnostic Software and Cable
LGMV software allows the service technician or commissioning agent to connect a computer
USB port to the outdoor unit main printed circuit board (PCB) using an accessory cable with-
out the need for a separate interface device. The main screen for LGMV allows the user to
view the following real time data on one screen:
Additional information that can be gathered from the main screen:
1. Graph: Graphic shows the following:
• Compressors showing actual speeds
• EEVs
• IDUs
• Low and high pressures
• Temperature sensors
• Four-way reversing valve
• Outdoor fans showing status and
speeds
2. Setting: Converts metric values to imperial values.
3. Making Data: Recording of real time data to a separate file created to be stored on
the user’s computer.
4. Loading Data: Recorded data from a saved “.CSV” file can be loaded to create an
LGMV session.
5. Electrical Data: The lower half of main screen is changed to show the following:
• Inverter compressor
- Amps
- Volts
- Power Hz
- Inverter control board fan Hz
The software is available in a high version with all of the features listed above. The low version has all features as the high version without
Target High Pressure and Target Low Pressure values shown on main screen.
In lieu of connecting to the ODU, user has the option to connect to IDU with the use of a USB to RS-485 connector kit. When connected
through IDU, user will not be able to record data.
This software can be used to both commission new systems and troubleshoot existing systems. LGMV data can be recorded to a “.CSV” file
and emailed to an LG representative to assist with diagnostic evaluations.
Recommended Minimum PC Configuration:
• CPU: Pentium
®
IV 1.6 GHz
• Operating System: Windows
®
NT/2000/XP/Vista
• Main Memory: 256 MB
• Hard Disk: 600 MB when operating
• Web Browser: Internet Explorer
®
5.0
Figure 23: MV Diagnostic Screen
ACCESSORIES
LGMV Diagnostic Software
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
36 | DUCTED
Ceiling-Concealed Ducted System Engineering Manual
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