LG PREMTA200 Deluxe Thermostat User Guide

LG PREMTA200 Deluxe Thermostat

Distribution

• LG Applied Representatives
• LG Distributors
• Contractor/Installers

PREMTA200 updates for improved temperature control

• Affected Product(s): LG PREMTA200 deluxe thermostat
• Applicable Models: Firmware versions prior to 1.006
• Affected Date(s): Manufactured before March 2023

Description

When the LG PREMTA200 Controller is installed, there may be temporary or persistent discrepancies between the actual room temperature and the temperature displayed.

Information

During the operation of the LG PREMTA200 product manufactured before March 2023 with firmware versions prior to 1.006, external influences can affect the temperature displayed on the installed remote controller. Discrepancies between actual room temperature and displayed room temperature can occur if there is ingress of air from an unconditioned space via the openings of the mounting plate of the PREMTA200 Controller. It is important to seal the unused openings of the PREMTA200 backplate using the foam donut supplied with the PREMTA200 or using field supplied insulating material. It is also recommended to upgrade the current firmware version to 1.006 or above, as shown below. If an electrical junction box is utilized for the controller mounting, be sure to use an alternate backplate adaptor, not provided by LG, or other means to block off the junction box opening. Recommended IDU to Remote Controller cable should be properly routed on the backplate of the PREMTA200 using the pathway and cable guides in the backplate.

The procedure for updating firmware and functions

Block the cable entry hole with LG-provided foam donut or field supplied insulating material as shown below to avoid temperature variations by air movement inside the wall.

1. Installed remote control.
2. Pull the lower part of the remote control. Detach the remote control.
3. Block the cable entry hole with LG-supplied foam donut or field supplied insulator or tape.

Once the PREMTA200 backplane is secured to the wall and associated cable terminated, the PREMTA200 controller can be mounted on and clipped into the backplate as shown. A securing screw may be used to effectively ‘lock’ the PREMTA200 controller into the backplate, thereby avoiding accidental dislocation of the controller.

• Reinstall remote controller
• Remote controller can be locked to backplate with a screw as shown

Update firmware to version 1.006 or higher

Preparation

• OTG Cable (USB to micro 5pin)
• USB Memory
• Update Files (Target version )

Copy “Update Files” into the USB Memory

• Update Files” to be added under the “rrcUpdate” folder of the USB Memory

• To obtain the most current version of firmware, contact the LG Field Support Specialist for your region.
• Check SW version of RRC (Deluxe Wired Remote Controller)

• Open the RRC bottom cover and connect the OTG cable to the Micro USB port

Choose update procedure depending on existing base version

RRC base version 1.000-1.003

1. Rebooting RRC
2. Verify “Update Start” UI at RRC after System Reboot
3. Select “Update Start’
4. Updating in Progress

RRC base version 1.004-

1. Select “Service-> Software Update” and then Press OK
2. Verify “Do you want to update” Ul at RRC
3. Select “OK”

Remote Controller will automatically restart after update completion

• Disconnect OTG cable from RRC when LG logo appears, check the updated version at the bottom right.

Optional Temperature Offset Setting

• For the temperature deviation according to the installation environment, use the temperature compensation in the installer setting.

• On initial power up, please allow 10 minutes prior to applying any temperature compensation available in the advanced installer settings.

• How to enter setting : Menu -> Installer setting -> Air conditioner -> Temperature Offset

• Remote Controller will automatically restart after update completion

• The password for installer settings is the version of the remote control.

• Example) If the remote-control version is 1.006, the password is 1006.

• After selecting an air conditioner, use the temperature compensation function.

• Temperature calibration works only when the temperature sensor reference is selected with the remote control.

• Temperature compensation can be set to -10F to 10F (-5℃ to 5℃) to match the space temperature.”

If temperature fluctuation continues, despite verifying and applying all of the above methods, it is recommended that the PREMTA200 Controller be replaced with a current production model with firmware version 1.006 produced after March 2023.
To obtain the most current version of firmware, contact the LG Field Support Specialist for your region.
Note: Always refer to the LG Installation and Operations Manual (IM) for additional instructions prior to PREMTA200 Controller. Good installation practices are essential when installing wall mounted controllers/thermostats/sensors to properly sense and control temperature as well as for reliable communication. Location, installation, and set-up of room controllers is extremely important to occupant comfort and system performance. Room Controllers should be located in a central location away from doorways, windows, diffusers, or other sources of thermodynamic heat or cold.

STN 59 59 – PREMTA200 updates for improved temperature control ©2023 LG Electronics U.S.A., Inc. All rights reserved.

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