Lg Sims - Self Diagnosis Functions - LG LV240HV4 Installation Manual

The SIMs WLAN module and the smart phone app together provide monitoring and trou-
bleshooting capability for LG Duct Free Systems. SIMs functions only with LG Duct Free
products. LG SIMs can also be used with Single Zone one-to-one configurations such as the
Single Zone VAHU systems.
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 refrig-
erant 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.
High voltages capable of causing death are used
in this equipment. Outdoor unit power remains con-
nected 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 air conditioning system must run for at least
15–20 minutes before data collected by SIMs 2.0 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 connec-
tion 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.
Figure 83: SIMs WLAN Module to DFS System Example.
LG SIMs App
on Smart Phone
(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.
TROUBLESHOOTING

LG SIMS - Self Diagnosis Functions

Figure 82: LG SIMs App and WLAN Module.
LG SIMs
WLAN Module
Figure 84: SIMs App Main Info Screen
Operational
Information
AC Cycle
Information on
Main Info Tab
Help Menu
63