LG SIMS - Self Diagnosis Functions. LG LSU363HLV3

TROUBLESHOOTING

LG SIMS - Self Diagnosis Functions

The SIMs WLAN module and the smart phone app together provide monitoring and troubleshooting capability for LG Duct Free Systems. SIMs function only with LG Duct Free products.

LG SIMs can also be used with Single Zone one-to-one configurations such as the Single

Zone Wall Mount systems. SIMs app is available for Apple ® iPhone ® iOS or Android™ smart phone operating systems. Download the latest version from the App Store (iPhone iOS) or

Google Play™ store (Android). (Apple and iPhone are trademarks of Apple Inc., registered in the U.S. and other countries. Android and Google Play store are trademarks of Google LLC.)

SIMs can display and graph operational data for the air conditioner system including the indoor unit and the outdoor unit. SIMs also displays error codes and a troubleshooting guide.

A full copy of the LG SIMs Smart Inverter Monitoring System User’s Manual is available on the www.lghvac.com website.

To use SIMs, you must be a trained HVAC service technician familiar with variable refrigerant flow (VRF) systems in general, and with LG’s Duct Free System products. You must understand the inverter air conditioning operation cycle, the meaning of the data displayed by

SIMs, and how to use the data to troubleshoot the system.

Figure 130: LG SIMs App and WLAN Module.

Figure 131: SIMs WLAN Module to DFS System Example.

High voltages capable of causing death are used in this equipment. Outdoor unit power remains connected during this procedure. Take extreme caution not to touch electrical components or connections. Failure to observe this warning can result in death or severe injury.

• The Duct Free System air conditioning system must run for at least

15–20 minutes before data collected by SIMs is valid for troubleshooting.

• The free SIMs app must be correctly installed on the smart phone before using SIMs.

• Some outdoor units have an LGMV extension cable accessed by removing the side handle cover. If the outdoor unit does not have this extension cable, access the LGMV connector by removing the top cover of the outdoor unit.

SIMs App Main Info Screen

The main screen is the first screen displayed after wireless connection is established. Tap the Main Info tab to display current readings regarding the indoor and outdoor unit(s). The Operational Info area of the screen will show active functions or modes by illuminating the light to the right of the function.

Additional Help information can be accessed by tapping the Help

Menu buttons at the bottom of this screen.

LG SIMs App on Smart Phone

Figure 132: SIMs App Main Info Screen

LG SIMs

WLAN Module

Operational

Information

AC Cycle

Information on

Main Info Tab

Help Menu

(File is Factory Use Only)

Due to our policy of continuous product innovation, some specifications may change without notification.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

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TROUBLESHOOTING

LG SIMS - Self Diagnosis Functions

SIMs App Screens

Outdoor Info/

Component Screen

Displays the following information:

• Frequency

• FAN1 RPM

• FAN2 RPM

• DC Link

• Current

• Voltage

• EEV Mode

• Restart Timer

• Comp Mode

• EEV

Outdoor Info/

Temperature Screen

Displays the following information:

• Inv TD

• Suction

• Discharge

• Cond Mid

• Cond Out

• Heatsink

• Air Temp

Indoor Info Tab

Displays the following information:

• Frequency

• Operation

• THM Mode

• REM Mode

• FAN

• EEV

• Air Temp

• Pipe-in

• Pipe-mid

• Pipe-out

Graph Info Tab

This tab has three sub sections:

• IDU - Indoor Unit

Temperature graph.

Displays IDU information in graph format. Information displayed is for the IDU # selected on the Main screen.

• ODU - Outdoor Unit

Temperature and Frequency graph. Displays

ODU information in graph format.

• ODU Electric - Outdoor Unit Electric data graph is displayed.

Due to our policy of continuous product innovation, some specifications may change without notification.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

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