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ECB-VAVS Controller
Figure 1:
ECB-VAVS Controller
Product Description
This document describes the hardware installation procedures for the
Single Duct Variable Air Volume Controllers.
The Distech Controls Variable Air Volume product line is designed to
control and monitor various types of HVAC equipment such as base-
boards, 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 wireless battery-less sensors and switches.
General Installation Requirements
For proper installation and subsequent operation of the device, pay
special attention to the following recommendations:
£
It is recommended that the controller(s) be kept at room tempera-
ture for at least 24 hours before installation to allow any condensa-
tion that may have accumulated due to low temperature during
shipping/storage to evaporate.
£
Upon unpacking, inspect the contents of the carton for shipping
damages. Do not install a damaged device.
£
The device is designed to operate under environmental conditions
that are specified in its datasheet.
£
Ensure proper ventilation of the device and avoid areas where cor-
roding, deteriorating or explosive vapors, fumes or gases may be
present.
£
Allow for proper clearance around the device's enclosure and
wiring terminals to provide easy access for hardware configuration
and maintenance.
I n s t a l l a t i o n G u i d e
£
When installing in an enclosure, select one that provides sufficient
surface area to dissipate any heat generated by the device and by
any other devices installed in the enclosure. A metal enclosure is
preferred. If necessary, provide active cooling for the enclosure.
£
The device's datasheet specifies the power consumption (amount
of heat generated), the operating temperature range, and other en-
vironmental conditions the device is designed to operate under.
£
Ensure that all equipment is installed according to local, regional,
and national regulations.
£
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 Dis-
tech Controls, the functionality and the protection provided by the de-
vice 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™ Solution 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.
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Summary of Contents for Distech Controls ECB-VAVS
- Page 1 Single Duct Variable Air Volume Controllers. vironmental conditions the device is designed to operate under. The Distech Controls Variable Air Volume product line is designed to £ Ensure that all equipment is installed according to local, regional, control and monitor various types of HVAC equipment such as base- and national regulations.
- Page 2 Network Guide. 0.55 [13.85] Sliding Grommet Inches [Millimeters] Figure 4: ECB-VAVS Controller with Terminal Covers Dimen- £ Keep wiring separate according to their function and purpose to sions avoid any ambient noise transmission to other wires. Use strap- ping to keep these wires separated. For example, keep power,...
- Page 3 Mounting Instructions VAV Controller Mounting Procedure Each controller is specially designed for easy installation either directly Mount the controller as follows: on an air duct or in a panel by using the integrated mounting collar and the screw that is provided with the controller. This mounting arrange- 1.
- Page 4 11. Connect the VAV box’s flow sensor tubing to the controller’s Pres- sure Sensor Inputs . The connection is polarity free (high-low ports are interchangeable). Create a condensation trap in the pneumatic tubing by forming it into a vertical loop. 12.
- Page 5 Power Wiring Voltage: 24VAC/DC; ± 15%, Class 2 This is a Class 2 Product. Use a Class 2 transformer only (rated at 100VA or less at 24VAC) to power the controller(s). The Network Guide provides extensive information and requirements for powering a controller that uses a BACnet network for communications. It can be downloaded from our website.
- Page 6 Daisy-Chain Wiring Use an external fuse on the 24VAC side (secondary side) of the trans- former, as shown below, to protect all controllers against power line spikes. Maintain consistent polarity when connecting controllers and devices to the transformer. One terminal on the secondary side of the transformer must be connected to the building’s ground.
- Page 7 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. £ For a wire up to 200’ (61m) long, a shielded 18AWG wire is recommended. £...
- Page 8 Output Wiring Before connecting an output device (actuator, relay, etc.) to the controller, refer to the datasheet and installation guide of the equipment manufacturer. £ For a wire length less than 75’ (23m) long, either a shielded or unshielded 18AWG wire may be used. £...
- Page 9 For optimal performance, use Distech Controls 24 AWG (0.65 mm) stranded, twisted pair shielded cable or refer to the Network Guide for cable specification. The BACnet MS/TP communication wire is polarity sensi- MAC Address and...
- Page 10 Screen Timeout: 15 seconds Screen Timeout: 15 seconds 3. Press the down button to set the number to 9995 (this is the de- 3. Use the down button to set the number to 9995 (this is the de- fault password). fault password).
- Page 11 Wireless Installation 1. Connect an Allure EC-Smart-Vue Series Communicating Sensor sensor to the controller with a Cat 5e patch cable. Wait for the dis- When connected to a Wireless Receiver, controllers can receive input play to show the room temperature. signals from a wide selection of wireless devices.
- Page 12 For this reason Distech Controls products are exempt from the WEEE Directive. Nevertheless, Distech Controls products are marked with the...
- Page 13 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 14 ©, Distech Controls Inc., 2010 - 2017. 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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