Direct Digital Control
Freely programmable DDC controller with a modern programming tool, a variety of integration interfaces, and 22 onboard I/O’s make it suitable for a wide range of building automation applications.

Local HMI with a Built-in LCD Display
The fully programmable LCD display with role-based access makes the controller useful in various HVAC scenarios.

Real-time Meter Management
AAC20-M and AAC20-LCD-M are equipped with an M-Bus interface that allows for real-time measurements of water, gas, electricity, or any other types of consumption meters.

Effective Building Management with DALI Interface
AAC20-D and AAC20-LCD-D are equipped with a DALI interface that allows for direct integration of up to 64 DALI ballasts.

Quality and Reliability Confirmed by Certificates
The experience in developing high-quality products and the BTL certification confirm the excellent performance of communication using the BACnet protocol.

Integration
BACnet IP and BACnet MS/TP AAC20 controllers are certified by the official BACnet Test Laboratories (BTL).
Modbus TCP/IP and Modbus RTU/ASCII Modbus is one of the most used protocol in industrial electronic devices.
1-Wire Interface for DS18B20 temperature sensors.
M-Bus AAC20-M and AAC20-LCD-M are equipped with a built-in M-Bus interface for direct integration of up to 20 M-Bus meters.
DALI AAC20-D and AAC20-LCD-D allows for direct integration of up to 32 DALI ballasts.

Inputs and Outputs
8 Universal Inputs - Support for temperature sensors and voltage, resistance, current, and dry contact measurements on each universal input.
4 Digital Inputs - Dry contact inputs, 100 Hz fast pulse counter.
6 Analog Outputs - 0-10 V DC control, PWM modes, and a maximum load of up to 20 mA.
4 Digital Outputs - Equipped with normally open 3 A relays.