Overview
The ECB-203 Series controllers are versatile devices designed for controlling various terminal units in HVAC systems. With 6 universal inputs, 5 digital outputs (TRIAC), and 3 universal outputs, they provide flexibility in system design. The controllers support BACnet MS/TP communication and are BTL-Listed as B-ASC, ensuring interoperability in building automation systems. Some models offer environmental protection with a conformal coating, making them suitable for humid regions.
Description
The ECB-203 Series are microprocessor-based programmable controllers designed to control terminal units such as rooftop units (RTUs), fan coil units (FCUs), unit ventilators (UVs), heat pump units (HPUs), air handling units (AHUs), and chilled ceilings. They utilize the BACnet MS/TP LAN communication protocol and are BTL-Listed as BACnet Application Specific Controllers (B-ASC). These controllers feature universal inputs and outputs, making them suitable for a wide range of HVAC applications.
Key Features
- Flexible Inputs and Outputs: 6 universal inputs, 5 digital outputs (TRIAC), and 3 universal outputs provide adaptability for various control scenarios.
- Integrated Power Supply: 15 VDC power supply supports 4-20mA transducers, eliminating the need for external power sources for these sensors.
- Comprehensive BACnet Support: Supports 1 calendar, 2 schedules, 8 PID loops, and over 200 BACnet objects, enabling complex control strategies and interoperability with other BACnet-compliant devices.
- Environmental Protection: Optional models with conformal coating offer enhanced durability in humid or challenging environments.
- Advanced Display Options: The ECB-253 model includes a live graphics color display with an integrated LCD operator interface, providing real-time access to controller functions.
- Sensor Integration: Supports up to 4 Allure series communicating sensors, enhancing environmental monitoring and control capabilities.
- Wireless Integration: The Open-to-Wireless™ Solution supports up to 18 wireless battery-less inputs, simplifying installation and reducing wiring requirements.
Technical Specifications
- Power Supply Input: 24VAC/DC; ±15%; Class 2
- Frequency Range: 50/60Hz
- Overcurrent Protection: Field replaceable fuse (2.0A)
- Power Consumption: 14 VA typical plus all external loads, 23 VA max.
- Communication Bus: BACnet MS/TP
- BACnet Profile: B-ASC
- Baud Rates: 9600, 19,200, 38,400, or 76,800 bps
- Addressing: Dip switch or with an Allure EC-Smart-Vue Series Communicating Sensor
- Operating Temperature: 32°F to 122°F (0°C to 50°C)
- Storage Temperature: -4°F to 122°F (-20°C to 50°C)
- Relative Humidity: 0 to 90% Non-condensing
Applications
The ECB-203 Series controllers are suitable for:
- Rooftop Units (RTUs)
- Fan Coil Units (FCUs)
- Unit Ventilators (UVs)
- Heat Pump Units (HPUs)
- Air Handling Units (AHUs)
- Chilled Ceilings
Resources
- 📄 Datasheet: ECB-203 Series Datasheet
- 🏢 Official Manufacturer: Distech Controls
- 📷 Product Image:
Synonyms & Related Terms
- ECB-203 Controller
- Distech ECB-203
- ECB-203 Series
Conclusion
The Distech Controls ECB-203 Series controllers provide robust and flexible control solutions for terminal units in ::contentReference[oaicite:0]{index=0}
