Distech Controls ECL-VAV - User Manual

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User Guide

Network Guide

Table of Contents

Other manuals for Distech Controls ECL-VAV

Hardware Installation Guide12 pages

Questions and Answers

D
dawnleeAug 26, 2025
Why is my Distech Controls ECL-VAV Controller not turning on even though it's powered?
- J
  Jonathan HardinAug 26, 2025
  If your Distech Controls Controller is receiving power but not turning on, there could be a few reasons. Here's what to check: * **Blown Fuse:** If it's a 24V controller, the fuse may have blown. Disconnect the power, check the fuse, and reconnect the power. * **Power Supply Polarity:** Make sure that consistent polarity is maintained between all controllers and the transformer. Ensure the COM terminal of each controller is connected to the same terminal on the secondary side of the transformer. * **Insufficient Power:** If it's a 24V controller, the transformer may not be powerful enough. Verify that the transformer used is powerful enough to supply all controllers.
D
Daniel EstradaAug 28, 2025
What to do if Distech Controls ECL-VAV wireless devices are not working correctly?
- A
  Angel MurphyAug 28, 2025
  If wireless devices associated with your Distech Controls Controller aren't functioning as expected, consider the following troubleshooting steps: * **Device Association:** Verify that the device is associated with the controller using the device configuration wizard. * **Power:** Recharge the device with light if it's solar-powered, or replace the battery if it's battery-powered. Also, ensure sufficient light intensity (200lx for 4 hours/day) for solar-powered devices. * **Distance:** Reposition the device to ensure it's within range of the Wireless Receiver. * **Configuration:** Check the device configuration using EC-gfxProgram to ensure it's enabled.
A
Andrew CarpenterSep 1, 2025
What does it mean if the STATUS LED is blinking on Distech Controls ECL-VAV Controller?
- H
  hmurphySep 2, 2025
  If the STATUS LED on your Distech Controls Controller is blinking, it indicates that the device has detected a fault condition. Consult the fault codes table for more information.
M
Mary HartSep 13, 2025
What to do if the damper is not opening or closing properly on Distech Controls ECL-VAV?
- J
  Julie RossSep 13, 2025
  If the damper isn't opening or closing properly on your Distech Controls Controller, here are a couple of things you can check: * The mechanical stops might not be in the proper position. The two mechanical stops must be positioned to stop the damper motion when it is completely closed and completely opened. The mechanical stops can be moved by increments of 5°. * The controller might be in Override. Set the Override to OFF in the wizard.
K
Kristin SmithSep 15, 2025
What to do if the flow sensor is not giving proper readings on Distech Controls ECL-VAV Controller?
- D
  Dawn RojasSep 16, 2025
  If the flow sensor is not giving proper readings on your Distech Controls Controller, here are a couple of things to check: * There might be a tubing connection problem. Make sure that the tubing is installed properly and that the tubing is not bent. Verify that the high and low pressure sensors are not inversed. * The controller may not be calibrated properly. Recalibrate the controller. Refer to the controller’s user guide for more information.
J
Joshua GatesNov 18, 2025
What to do if Distech Controls ECL-VAV Controller does not communicate on a large network?
- M
  morgansnyderNov 18, 2025
  If your Distech Controls Controller communicates well over a short network but fails on a larger one, consider these potential issues: * **Network length:** Ensure the total wire length does not exceed the specifications outlined in the Network Guide. * **Wire type:** Verify the wire type matches the specifications in the Network Guide. * **Network wiring:** Double-check all wire connections to ensure they are correct. * **Network termination:** Check the network terminations, as incorrect or broken terminations can affect communication integrity based on the controller's position on the network. * **Number of controllers:** Ensure the number of controllers on a channel does not exceed 50. If it does, use a router or a repeater. * **Max Master parameter:** Configure the maximu...
C
Carolyn MckayNov 20, 2025
What to do if Distech Controls Controller hardware output is not operating correctly?
- E
  Eric JonesNov 20, 2025
  If a hardware output on your Distech Controls Controller isn't working correctly, consider the following: * **Blown Fuse:** If it's a 24V controller with an auto-reset fuse, disconnect the power and output terminals, wait a few seconds for the fuse to cool down, check the power supply and output wiring, and then reconnect the power. * **Wiring Issues:** Verify the output wiring is correct, referring to the module's hardware installation manual and the peripheral device's manufacturer specifications. * **Configuration Problems:** Use EC-gfxProgram to check the output configuration to ensure it is enabled. * **Actuator Problems:** If using a 0-10V output with a 24VAC powered actuator, check the polarity of the 24VAC power supply connected to the actuator. Reverse the 24VAC wire if n...
R
Randall GardnerNov 22, 2025
What to do if Distech Controls Controller hardware input is not reading the correct value?
- K
  Kevin TuckerNov 23, 2025
  If a hardware input on your Distech Controls Controller isn't reading the correct value, here's what to check: * **Wiring:** Ensure the wiring is correct, following the module's hardware installation manual and the peripheral device's manufacturer's recommendations. * **Circuits:** Use a voltmeter to check the voltage on the input terminal. For a digital input, a short circuit should show approximately 0V, while an open circuit should show approximately 5V. Correct the wiring if there's a fault. * **Configuration:** Verify the input configuration using the controller configuration wizard. * **Voltage/Current:** An over-voltage or over-current at one input can affect other input readings. Ensure you're respecting the allowed voltage/current range limits for all inputs. Check the ap...
J
James WarrenDec 1, 2025
What to do if Distech Controls Controller device does not communicate on the BACnet MS/TP network?
- G
  Gina AnthonyDec 1, 2025
  If your Distech Controls Controller isn't communicating on the BACnet MS/TP network, consider these potential causes: * **Voltage Issues:** For 24V controllers, check for 'Poor-Quality Power' status, verify the power supply voltage is within 24VAC/DC ±15%, and check for tripped fuses or circuit breakers. * **Transformer Overload:** For 24V controllers, check for 'Poor-Quality Power' status and ensure the transformer is powerful enough. * **Wiring:** Double-check wire connections. * **Termination:** Check network terminations. * **Max Master Parameter:** Configure the Max Master to the highest MAC Address of any device on the MS/TP data bus. * **Duplicate MAC Address:** Ensure each controller has a unique MAC Address. If the MAC Address DIP switch is set to 0 (all off), use an ...

Summary

Chapter 2: BACnet MS;TP Communication Data Bus Fundamentals

BACnet MS;TP Data Transmission Essentials

Covers the fundamental principles of BACnet MS/TP data bus transmission.

BACnet MS;TP Data Bus is Polarity Sensitive

Explains the importance of respecting polarity in BACnet MS/TP data bus connections.

Maximum Number of BACnet MS;TP Devices on a Data Bus Segment and Baud Rate

Data Bus Segment MAC Address Range for BACnet MS;TP Devices

Device Addressing

Transformer Selection and Determining the Maximum Power Run Length

Chapter 3: LonWorks Communication Bus Fundamentals

Power Supply Requirements for 24 V Controllers

Outlines power supply requirements for 24V LonWorks controllers.

Chapter 4: Subnetwork Installation Guidelines

Setting the Subnet ID Addressing for Room Devices

ECx-4 XX I;O Extension Module Addressing

Chapter 5: Controller Installation and Maintenance Tasks with an Allure EC-Smart-Vue Sensor

Commissioning a Controller with an Allure EC-Smart-Vue Sensor

Covers the process of commissioning controllers using an Allure EC-Smart-Vue sensor.

Setting the Allure EC-Smart-Vue Sensors Subnet ID Address

Setting the Baud Rate for ECB-Series Controllers (optional)

LAN through an Allure EC-Smart-Vue Sensor for a BACnet Network

Chapter 6: BACnet Troubleshooting

Troubleshooting ECB Device Symptoms

Lists common symptoms, causes, and solutions for ECB devices.

Chapter 7: LonWorks Troubleshooting

Troubleshooting ECL Device Symptoms

Lists common symptoms, causes, and solutions for ECL devices.

Device does not communicate on the LONWORKS MS;TP network

Troubleshoots communication issues on LonWorks MS/TP networks.

Chapter 8: ECx-4 XX Series I;O Extension Module Specific Troubleshooting

Troubleshooting ECx-4 XX Series I;O Extension Module Device Specific Symptoms

Lists symptoms, causes, and solutions specific to ECx-4XX modules.

Device does not communicate on the BACnet MS;TP network

Troubleshoots communication failures for ECx-4XX devices.

Chapter 9: Allure EC-Smart-Vue Sensor Troubleshooting

Troubleshooting Allure EC-Smart-Vue Sensor Symptoms

Lists symptoms, causes, and solutions for Allure EC-Smart-Vue sensor issues.

Allure EC-Smart-Vue sensor screen is blank & back light is off

Troubleshoots a blank sensor screen with backlight on.

Device is not communicating with controller

Addresses communication issues between the sensor and controller.

Error code interpretation for Allure EC-Smart-Vue Sensor Symptoms

Chapter 10: ECx-Light;Blind Series Troubleshooting

Troubleshooting ECx-Light; Blind Series Symptoms

Lists symptoms, causes, and solutions for ECx-Light/Blind series issues.

Expansion module is not communicating with controller

Troubleshoots communication failures for expansion modules.

Hardware input is not reading the correct value

Distech Controls ECL-VAV Specifications

General

Model	ECL-VAV
Controller Type	VAV Controller
Input Voltage	24 VAC
Communication Protocol	BACnet MS/TP
Operating Temperature	0°C to 50°C
Enclosure Rating	IP20

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