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ECB-VAV-N and ECB-103 Controllers
Product Description
This document describes the hardware installation procedures for the ECB-VAV-N and ECB-103 controllers.
The Distech Controls Variable Air Volume (VAV) product line is designed to control and monitor various types of HVAC equipment such as baseboards,
single and multi-stage duct heaters, fans, valves, lights, etc. When connected to a Wireless Receiver, this product line can be used with a variety of wire-
less battery-less sensors and switches.
Each controller uses the BACnet
For more information on the specific layout and functionality of each controller, please refer to their individual datasheets.
General Installation Requirements
For proper installation and subsequent operation of the device, pay special attention to the following recommendations:
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It is recommended that the controller(s) be kept at room temperature for at least 24 hours before installation to allow any condensation that may
have accumulated due to low temperature during shipping/storage to evaporate.
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Upon unpacking, inspect the contents of the carton for shipping damages. Do not install a damaged device.
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The device is designed to operate under environmental conditions that are specified in its datasheet.
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Ensure proper ventilation of the device and avoid areas where corroding, deteriorating or explosive vapors, fumes or gases may be present.
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Allow for proper clearance around the device's enclosure and wiring terminals to provide easy access for hardware configuration and maintenance.
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When installing in an enclosure, select one that provides sufficient surface area to dissipate any heat generated by the device and by any other de-
vices installed in the enclosure. A metal enclosure is preferred. If necessary, provide active cooling for the enclosure.
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The device's datasheet specifies the power consumption (amount of heat generated), the operating temperature range, and other environmental
conditions the device is designed to operate under.
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Ensure that all equipment is installed according to local, regional, and national regulations.
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Do not drop the device or subject it to physical shock.
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If the device is used and/or installed in a manner not specified by Distech Controls, the functionality and the protection provided by the device may
be impaired.
Any type of modification to any Distech Controls product will void the product's warranty
Before installation of the Wireless Receiver, verify that local communication regulations allow the installation of wireless devices and
available frequencies to be supported in your area. Refer to the Open-to-Wireless™ Application Guide for more information.
Take reasonable precautions to prevent electrostatic discharge to the device when installing, servicing or during operation. Discharge
accumulated static electricity by touching one's hand to a well-grounded object before working with the device.
®
MS/TP LAN communication protocol and is BTL
I n s t a l l a t i o n G u i d e
®
-Listed as BACnet Application Specific Controllers (B-ASC).
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Summary of Contents for Distech Controls ECB-VAV-N
- Page 1 Do not drop the device or subject it to physical shock. £ If the device is used and/or installed in a manner not specified by Distech Controls, the functionality and the protection provided by the device may be impaired. Any type of modification to any Distech Controls product will void the product’s warranty Before installation of the Wireless Receiver, verify that local communication regulations allow the installation of wireless devices and available frequencies to be supported in your area.
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Page 2: General Wiring Recommendations
Device Markings (Symbols) Certain markings (symbols) can be found on the controller and are defined as follows: Symbol Description CE marking: the device conforms to the requirements of applicable EC directives. UKCA marking: the device conforms to the requirements of applicable Great Britain regulations. Products must be disposed of at the end of their useful life according to local regulations. -
Page 3: Power Wiring
The Network Guide provides extensive information and requirements for powering a controller that uses a BACnet network for communications. It can be downloaded from Distech Controls’ Documentation and Resources Portal. It is recommended to wire only one controller per 24VAC transformer. - Page 4 Daisy-chaining controllers is not permitted when a controller’s expected power consumption including external loads is over 15VA. In this case the con- troller must be connected to the 24VAC transformer in a star topology. The transformer must be installed in close proximity to the controller according to the cable gauge and total load.
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Page 5: Input Wiring
Jumpers for DO1 & DO2 * Factory-default positions Figure 4: ECB-VAV-N and ECB-103 Jumpers and DIP Switches Input Wiring Before connecting a sensor to the controller, refer to the installation guide of the equipment manufacturer. £ For a wire length less than 75’ (23m), either a shielded or unshielded 18AWG wire may be used. - Page 6 Sensor Input Type Input Connection Diagram £ 0 to 20mA input used with a 3-wire, 0 to 20mA sensor powered by an external 24 249Ω ¼W AC/DC power supply. 0-20mA To Analog- Common Sensor To-Digital 24VAC Converter £ 0 to 20mA input used with a sensor powered by its own power source. 249Ω...
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Page 7: Output Wiring
Guide for extensive information and requirements for the connection of the Allure Series. It contains information about network topology and length, cable type, setting the Subnet ID, etc. It can be downloaded from the Distech Controls’ Documentation and Resources Portal. See also the Hardware In- stallation Guide supplied with the Allure Series. -
Page 8: Communications Wiring
It can be downloaded from the Distech Controls’ Documentation and Resources portal. For optimal performance, use Distech Controls 24 AWG (0.65 mm) stranded, twisted pair shielded cable or refer to the Network Guide for cable specifi- cation. - Page 9 MAC Address DIP Switch (S1) located under the Must be set to the cover OFF (0) position Figure 6: Typical Device MAC Address DIP Switch Set to 82 The address is the sum of the numbers set to ON. For example, if the second (2), fifth (16), and seventh (64) DIP switches are set to ON, the device MAC address is 82 (2 + 16 + 64).
- Page 10 Screen Timeout: 30 seconds once to enter the GEN CFG submenu. 5. Press the down button 6. Press the Menu button several times until SUBNET ID appears on the display. The current controller’s Subnet ID is shown. Screen Timeout: 30 seconds to set the controller’s Subnet ID to 1.
- Page 11 5. Press the down button once to enter the GEN CFG submenu. The MAC ADDRESS menu is shown with the current controller’s BACnet MAC Ad- dress. Screen Timeout: 30 seconds 6. Use the up and down buttons to set the controller’s MAC Address. Only addresses from 1 to 127 are recommended to be used. 7.
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Page 12: Wireless Installation
Screen Timeout: 30 seconds to set the controller’s Baud rate. The AUTO setting detects and uses the current baud rate being used by the 7. Use the up and down buttons BACnet MS/TP network. 8. Press the Menu button once to apply the value. 9. -
Page 13: Maintenance
Directive applies to standalone products, for example, products that can function entirely on their own and are not a part of another system or piece of equipment. For this reason Distech Controls products are exempt from the WEEE Directive. Nevertheless, Distech Controls products are marked with the WEEE symbol , indicating devices are not to be thrown away in municipal waste. -
Page 14: Troubleshooting Guide
Troubleshooting Guide Controller is powered but does not turn on Fuse has blown Disconnect the power. Check the fuse integrity. Reconnect the power. Power supply polarity Verify that consistent polarity is maintained between all controllers and the transformer. Ensure that the 24VCOM terminal of each controller is connected to the same terminal on the secondary side of the transformer. - Page 15 ©, Distech Controls Inc., 2010 - 2022. All rights reserved. Images are simulated. While all efforts have been made to verify the accuracy of information in this manual, Distech Controls is not responsible for damages or claims arising from the use of this manual.
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