DK-AC-BAC-1 – Daikin Domestic to BACnet IP/MSTP Interface

DK-AC-BAC-1 – Daikin Domestic to BACnet IP/MSTP Interface with Web UI and DIP Setup. 

The DK-AC-BAC-1 interface enables full bi-directional integration between Daikin domestic air conditioners and BACnet IP or BACnet MS/TP networks. This compact gateway provides direct connectivity to a single indoor unit and is ideal for residential and light commercial automation applications.

It offers control of key AC parameters like operating mode, fan speed, and temperature setpoint, while also allowing real-time monitoring of errors, alarms, and system status. The gateway supports BACnet IP via RJ45 Ethernet and MS/TP via RS485, providing flexible integration into building automation systems.

The product is designed for quick and hassle-free setup. No external software is required – configuration is done using DIP switches, and the device features a built-in web interface for local control, monitoring, and IP settings. It is powered directly through the Daikin indoor unit, eliminating the need for a separate power supply.

Key Features:

• Fully bi-directional control and monitoring
• Supports BACnet IP and MS/TP simultaneously
• Web interface for diagnostics and IP configuration
• No external power supply required
• Fast DIP-switch setup – no config software needed
• 6 LED indicators for status and communication
• Compact size and DIN rail mountable

Specification:

Terminal wiring (power and signal):

• Solid/stranded wires (with/without ferrule):
• 1 core: 0.5–2.5mm²
• 2 cores: 0.5–1.5mm²
• 3 cores: not permitted

Ports:

• Console: Mini USB for diagnostics
• BACnet MS/TP: EIA485 (2+GND screw terminal)
• BACnet IP: 10/100BT RJ45 Ethernet

Power & Isolation:

• From AC unit (no external supply needed)
• 4000VDC isolation (AC to RS485)
• 1000VDC isolation (AC to Console)

Control & Monitoring:

• 6 x status LEDs for communication

Mechanical:

• Plastic housing (UL 94 V-0)
• Dimensions: 93mm x 53mm x 58mm
• Weight: 85g
• Color: Light Grey (RAL 7035)
• Mounting: Wall or DIN rail (EN60715 TH35)

Environmental:

• Operating temperature: 0°C to 70°C
• Humidity: 5%–95% non-condensing

Certifications & Standards:

• CE (EMC: 2004/108/EC, LVD: 2006/95/EC)
• EN 61000-6-1, EN 61000-6-3
• EN 60950-1, EN 50491-3
• RoHS compliant (2002/95/CE)

Order code: DK-AC-BAC-1

Warranty: 36 months