Fujitsu UTY-TFSXH4 Wi-Fi Module for Wall-Mounted Unit (USB)
The original Wi-Fi module that connects a Fujitsu wall-mount heat pump to the AIRSTAGE Mobile app.
AirGreen codeAG-AC-079
514 316-2973 · sales@airgreen.ca
Quick facts
The Fujitsu UTY-TFSXH4 Wi-Fi module connects a Fujitsu wall-mounted heat pump to the AIRSTAGE Mobile app on iOS and Android. It plugs into the USB port provided inside the wall-mounted unit and draws its power from the indoor unit: no box to mount on the wall.
Control your wall-mounted heat pump from your phone
With AIRSTAGE Mobile, you turn the unit on, change modes and adjust the set point wherever you are, on a 2.4 GHz Wi-Fi network (IEEE 802.11 b/g/n). In Direct Control mode, the app also controls the unit locally, without a Wi-Fi access point. One account manages up to 50 indoor units, with one module per unit.
Manufacturer specifications
- Dimensions: 57 × 33 × 9 mm (2-1/4 × 1-5/16 × 3/8 in), weight 16.6 g
- Operating temperature: 0 to 46 °C
- Radio output: 40 mW
The right module for your unit
The UTY-TFSXH4 is the USB-type module for Fujitsu AIRSTAGE wall-mounted units. Non-wall units use the UTY-TFSXJ4 module, which is UART type. Send us your indoor unit's model number: we confirm compatibility before ordering.
Installed by AirGreen in Greater Montréal
Our technicians install the module in the wall-mounted unit and connect it to your network, in Montréal, Laval, Longueuil, on the South Shore and on the North Shore. For availability or a quote, call us at 514 316-2973 or email sales@airgreen.ca.
Your Fujitsu wall-mount heat pump on your phone
The module plugs in inside the wall unit and connects it to your Wi-Fi network.
- On/off, mode and setpoint from anywhere with the AIRSTAGE Mobile app
- Fujitsu wall-mount units with the USB port for a Wi-Fi module
- Local direct control, even without a Wi-Fi access point (Direct Control)
- One module per indoor unit, up to 50 units per account
Specifications
From the manufacturer’s documentation. A value the manufacturer does not publish is not listed.
What to know before installing
- Check your indoor unit’s model number: UTY-TFSXH4 is the USB type for wall-mount units.
- Non-wall units use a different module (UTY-TFSXJ4, UART type).
- Remote control needs a 2.4 GHz Wi-Fi network.
- It installs inside the wall unit: have a technician do it.
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Frequently asked questions
Is my Fujitsu unit compatible?
UTY-TFSXH4 is the USB type for the Fujitsu AIRSTAGE wall-mount units designed for this module. Send us your indoor unit’s model number and we confirm before ordering.
Do I need one module per unit?
Yes, one module per indoor unit. One AIRSTAGE Mobile account manages up to 50 units.
Does it work without Internet?
Yes, in Direct Control mode the app controls the unit locally, without a Wi-Fi access point. Remote control needs a 2.4 GHz Wi-Fi network.
Can you install it?
Yes. Our technicians fit it inside the wall unit and connect it to your network, everywhere in Greater Montréal.
Add Wi-Fi to your Fujitsu wall-mount heat pump
Tell us the size and the quantity: we confirm availability and send you a quote. Or let our technicians install it for you.
Specifications from the manufacturer’s documentation, checked on October 7, 2026.