LG Art Cool Mirror Inverter Engineering Manual page 29

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:
• 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
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
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
• 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
• Temperature sensors
• Four-way reversing valve
• outdoor fans showing status and speeds
- Power Hz
- Inverter control board fan Hz
Due to our policy of continuous product innovation, some specifications may change without notification.
aCCESSoriES
Figure 5: MV Diagnostic Screen
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