Standalone FCU Unit Gateway

Airnexus FCU Gateway – 

The Airnexus Gateway is the bridge that lets Airnexus controllers talk directly to supported HVAC indoor units over their native proprietary X/Y communication bus. It converts those manufacturer bus signals into clean, reliable control and feedback on the Airnexus ANX BUS, so your Airnexus system can monitor and command the unit with full two-way communication.

What it does

• Connects to the indoor unit’s Remote Controller bus and brings it into the Airnexus ecosystem

• Enables two-way control + status feedback (not just on/off)

• Provides a consistent Airnexus interface for mode, setpoint, fan, alarms, and live operating status (where supported by the unit)

• Designed for stable comms in real installs — not hobby-grade adapters

ANX BUS compatibility

This gateway is natively compatible with the proprietary Airnexus ANX BUS and is plug-and-play across the Airnexus controller range:

• Works with all Airnexus controllers that support ANX BUS

• Allows multiple Airnexus modules to communicate on the same system architecture

• Simplifies expansion: add gateways/zones/modules without redesigning your control stack