Fujitsu AIRSTAGE® UTY-TFSXJ4 Mobile Wireless LAN Adapter

    Sale price $209.99 USD -100% Regular price
    Regular price $209.99 USD
    Fujitsu AIRSTAGE® UTY-TFSXJ4 Mobile Wireless LAN Adapter
    Sale price $209.99 USD Regular price
    Regular price $209.99 USD

    Product Details

    The Fujitsu General UTY-TFSXJ4 is a Wireless LAN adapter that connects your compatible Fujitsu AIRSTAGE non-wall-mount indoor unit to the AIRSTAGE Mobile app, giving you smartphone control and monitoring of your heating and cooling system from anywhere.

    ⚠ THIS ITEM IS NON-RETURNABLE. Do not purchase unless your indoor unit's exact model number appears on the Compatible Model Numbers list below. This adapter is model- and unit-type specific — it will not work with wall-mounted units (those require the UTY-TFSXH4 adapter, sold separately) or with any indoor unit not listed. If you are not 100% sure your model is compatible, email us to confirm fit before ordering. No returns or exchanges will be accepted for incompatible units.

    Key Features

    • Control your compatible AIRSTAGE system from a smartphone (iOS or Android) via the AIRSTAGE Mobile app
    • Direct connection to the air conditioner without a wireless access point required
    • Control and monitor On/Off, Mode, Airflow Speed & Direction, and Weekly Scheduling
    • Outdoor and room temperature display
    • Group functions for monitoring and on/off control by group, zone, floor, or building
    • Multiple user access levels — up to 5 user accounts per indoor unit (1 main user + sub users)
    • Error handling and history
    • Specialty functions (if available on your system): Economy, Energy Saving Fan, Occupancy, Powerful, and Outdoor Unit Low Noise
    • Voice control support via Alexa and Google Home (with compatible smart speaker)
    • Over-the-air firmware updates

    Important: One Adapter Per Indoor Unit

    One UTY-TFSXJ4 adapter is required for each indoor unit you want to control via the app. The UTY-TFSXJ4 is built for Non-Wall Mount Indoor Units (UART Type) only.

    Smartphone Requirements

    • iOS 13.4 or later
    • Android 6.0 or later
    • Tablets are not supported

    The AIRSTAGE Mobile app cannot be used with air conditioners that are not on the Compatible Indoor Units list below.

    Compatible Model Numbers — UTY-TFSXJ4

    Per Fujitsu General's official spec sheet. Confirm your indoor unit's full model number against this list before purchasing. If your model isn't listed, email us — do not guess.

    ACUH Series (ACUH**LUAS1):
    ACUH07LUAS1, ACUH09LUAS1, ACUH12LUAS1, ACUH18LUAS1

    ADUH Series (ADUH**LUAS1):
    ADUH07LUAS1, ADUH09LUAS1, ADUH12LUAS1, ADUH18LUAS1, ADUH24LUAS1

    AMUG Series (AMUG**LMAS):
    AMUG24LMAS, AMUG30LMAS, AMUG36LMAS, AMUG48LMAS

    ARU Series (ARU**RGLX):
    ARU12RGLX, ARU18RGLX, ARU30RGLX

    Individual Models:
    ARUH12LUAS, ASU30RLE

    AUU Series (AUU**RGLX — all capacities)

    J-Series & V-Series — TLAV1 Models:
    Compatible with all TLAV1-series indoor units except ARUL4TLAV1, ASUB18TLAV1, and ASUB24TLAV1 (these three are NOT compatible). Confirmed compatible TLAV1 models include:
    AGUA4TLAV1, AGUA7TLAV1, AGUA9TLAV1, AGUA12TLAV1, AGUA14TLAV1, ARUH72TLAV1, ASUA4TLAV1, ASUA7TLAV1, ASUA9TLAV1, ASUA12TLAV1, ASUA14TLAV1, ASUB30TLAV1, ASUB36TLAV1, AUUA4TLAV1, AUUB18TLAV1, AUUB24TLAV1, AUUB30TLAV1, AUUB36TLAV1, AUUB48TLAV1

    J-Series & V-Series — TLAV2 Models:
    Compatible with all TLAV2-series indoor units.

    NOT COMPATIBLE: ARUL4TLAV1, ASUB18TLAV1, ASUB24TLAV1, and any wall-mounted unit requiring the UTY-TFSXH4 adapter. If your model number is not on the list above, email to confirm before ordering — this item cannot be returned once purchased.

    Need Help?

    Not sure if this adapter fits your system? Contact HEPAFilterSales.com before ordering — we're happy to confirm compatibility using your indoor unit's full model/serial number.

    Installation

    The UTY-TFSXJ4 is a wire-in adapter. No separate hub or gateway is required. Installation procedures vary by model — consult your Fujitsu Operation Manual for model-specific instructions before beginning.

    Turn off the power supply to the air conditioner before installing or removing this adapter. After installation, restore power and wait a minimum of 60 seconds before beginning app configuration.

    Documentation & Downloads

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