Distech Controls ECB-400

PersoniWay
Written by PersoniWay07 mar 2025

Overview

The ECB-400 Series controllers offer versatile control for medium-to-large HVAC applications. With flexible inputs and outputs, onboard scheduling, alarming, and energy monitoring, they provide efficient system automation. Optional features include HOA switches and display modules, enabling local control and diagnostics. The controllers support Open-to-Wireless™ technology, allowing wireless sensors and switches to be integrated easily.

Description

The ECB-400 Series are microprocessor-based programmable controllers designed for HVAC and building automation applications. They control air handling units, chillers, boilers, pumps, cooling towers, and rooftop units. The ECB-400 supports BACnet MS/TP communication and is BTL-Listed as a BACnet Advanced Application Controller (B-AAC). Some models feature Hand-Off-Auto (HOA) switches and potentiometers for local control, and others include a full-color backlit display for easy operation.

Key Features

  • Flexible Inputs and Outputs: 12 universal inputs (4 fast pulse counting) and 12 universal outputs.
  • Manual Control Option: Optional HOA switch and potentiometer for local manual operation.
  • Integrated Power Supply: 15 VDC output for direct connection to 4-20mA transducers.
  • Advanced Scheduling & Monitoring: 2 calendar objects, 10 schedules, and 30 PID loops for extensive automation.
  • Comprehensive BACnet Support: Supports over 300 BACnet objects for seamless integration with BACnet-based systems.
  • Enhanced User Interaction: Models with a full-color backlit LCD display allow for real-time system monitoring and adjustments.
  • Alarm and Notification System: Built-in alarm functionality ensures prompt alerts for operational issues.
  • Smart Sensor Compatibility: Supports up to 12 Allure communicating sensors for precise environmental monitoring.
  • Wireless Integration: Open-to-Wireless™ compatibility allows up to 28 wireless battery-free sensors and switches.

Technical Specifications

  • Power Input: 24VAC/DC ±15%; Class 2
  • Frequency: 50/60Hz
  • Overcurrent Protection: 3.0A field-replaceable fuse
  • Power Consumption: 16 VA (typical), 38 VA (max)
  • Communication Protocol: BACnet MS/TP
  • Processor: STM32 ARM Cortex™ M3, 32-bit
  • Memory: 1 MB Non-volatile Flash (applications), 2 MB Non-volatile Flash (storage), 96 kB RAM
  • Operating Temperature: 32°F to 122°F (0°C to 50°C)
  • Storage Temperature: -4°F to 122°F (-20°C to 50°C)
  • Humidity: 0-90% RH, non-condensing

Applications

The ECB-400 Series controllers are used in various automation applications, including:

  • Air Handling Units
  • Multi-Zone HVAC Systems
  • Chillers and Boilers
  • Cooling Towers and Rooftop Units
  • Pump Control
  • Lighting Automation

Resources

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