Australia
New Zealand
Greece
Flexible, distributed zone control for HVAC and airflow‑based applications
The ZN253 Zone Controller provides reliable, scalable control for zone‑level HVAC applications, combining graphical programming, open BACnet communications, and seamless WebCTRL® integration to support comfort and energy efficiency.
The ZN253 is a fully programmable, native BACnet Advanced Application Controller (AAC) designed for controlling a single zone in a building. The ZN253 is well suited for unit ventilator and packaged HVAC applications that require multiple analog outputs for modulating valves or dampers. It communicates on an EIA-485 LAN using BACnet MS/TP or BACnet over ARCNET communications and connects seamlessly to the WebCTRL® building automation system.
The controller supports up to 10 total points, including 2 binary outputs, 5 universal inputs, and 3 analog outputs, providing flexible control for zone‑level applications.
Supports native BACnet over MS/TP communications, enabling integration into BACnet‑based building automation systems.
Uses a fast, powerful, and fully distributed control architecture, allowing the controller to operate independently of other system devices.
Firmware upgrades can be performed remotely, and startup and commissioning are simplified using WebCTRL® system user interfaces.
| Document Name | Description | Document Type | Language | Action |
|---|---|---|---|---|
| Spec Sheet | ZN253 Zone Controller Spec Sheet | English | Download |
It is designed for zone‑level HVAC and airflow‑based applications, including fan coil units and exhaust systems.
Yes. EIKON® graphical programming allows full customization of control logic within the controller’s I/O capacity.
Yes. Its fully distributed architecture allows standalone operation while remaining integrated with WebCTRL®.
The controller supports BACnet over MS/TP communications.
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calculation analysis, and technical data required for project design.
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For more information : ahi@ahi-carrier.com