Fujitsu FJ-AC-485-1 BACnet MS/TP Module (Intesis Gateway)
The gateway Fujitsu lists to connect its AIRSTAGE heat pumps to a building management system over BACnet MS/TP or Modbus RTU.
AirGreen codeAG-AC-103
514 316-2973 · sales@airgreen.ca
Quick facts
The Fujitsu FJ-AC-485-1 BACnet module is the gateway Fujitsu specifies for integrating its AIRSTAGE heat pumps into a building management system. Its accessory lists call it “Intesis - BACnet MSTP & Modbus RTU Gateway”: it is designed by Intesis for Fujitsu equipment.
A heat pump managed like the rest of the building
In a commercial building, a school or a seniors’ residence, the manager monitors lighting, ventilation and heating from a single workstation. The FJ-AC-485-1 gateway lets you add Fujitsu heat pumps to it over a BACnet MS/TP network, or over Modbus RTU according to the manufacturer’s description. Each indoor unit becomes visible and controllable in the system.
Units listed by Fujitsu
- Altair 500 (ASUH**KPAS), Orion XLTH (ASUH**KZAS) and Orion XLTH+ wall-mounted units
- ACUH and AUUH cassettes, suspended ceiling unit
- ADUH and ARUH ducted units, AMUH air handlers
- AGUH floor units
Preparing the integration
Network configuration is done with the integrator responsible for the building management system. For a Modbus-only network, Fujitsu also offers the UTY-VMSX converter. We check the protocol, the number of units and the model of each one with you before ordering.
Installed by AirGreen in Greater Montréal
We connect the gateway to the units and work with your integrator in Montréal, Laval, Longueuil, on the South Shore and on the North Shore. RBQ licence 5645-9605-01. For availability or a quote, call us at 514 316-2973 or email sales@airgreen.ca with the number of units to integrate.
The heat pump inside the building management system
Fujitsu presents the FJ-AC-485-1 as an Intesis BACnet MS/TP and Modbus RTU gateway.
- Commercial and institutional buildings run by a BACnet system
- Bringing a wall unit, cassette or ducted unit into central management
- Projects where the manager wants to monitor and control each unit from one station
- Modbus RTU installations, per the manufacturer’s description
Specifications
From the manufacturer’s documentation. A value the manufacturer does not publish is not listed.
What to know before installing
- The building system integrator must plan network settings (address, speed) with us.
- Check that your unit appears in Fujitsu’s accessory list before ordering.
- For a Modbus-only network, Fujitsu also offers the UTY-VMSX converter.
- It connects inside the indoor unit: have a technician do it.
You may also need
Fujitsu UTY-VMSX Modbus Converter
Fujitsu UTY-VTGX Network Converter (H Series to VRF)
Fujitsu UTY-XWZXZ5 Dry Contact Kit (with Error Output)
Fujitsu UTY-XCSX External Input and Output Board for Cassettes and Duct Units
Fujitsu Leak Detection System Accessory – UTYSGZU
Hitachi 5-Wire Adapter for 24 V Thermostat – C3STAT01
Hitachi C1STAT01 5-Wire Thermostat Adapter (airHome)
Hitachi Port Adapter for airHome RAM-G Multi-ZoneOriginal partsSee all
Frequently asked questions
Is my unit compatible?
Fujitsu lists the FJ-AC-485-1 among the accessories of its R-32 AIRSTAGE H-Series systems: Altair 500, Orion XLTH and Orion XLTH+ wall units, ACUH and AUUH cassettes, ADUH and ARUH ducted units, AMUH air handlers, AGUH floor units and the ceiling-suspended unit. Send us the model number and we confirm.
BACnet or Modbus: which one?
It depends on the building management system. The FJ-AC-485-1 is described for BACnet MS/TP and Modbus RTU; for a Modbus-only network, Fujitsu also offers the UTY-VMSX converter.
Is a communication kit required?
Fujitsu’s submittals do not require one for this gateway on Altair 500 and Orion XLTH wall units. We check your unit’s case before installation.
Can you install it?
Yes. We connect the gateway to the unit and work with your integrator on the network setup, everywhere in Greater Montréal.
Connect your Fujitsu heat pumps to your BACnet system
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.