Distech LonWorks ECL-203 Series User manual

ECL Series LONWORKSControllers
Figure1: From left to right: large enclosure with HOA switches, large enclosure without HOA, and small enclosure with operator interface.
Product Description
This document describes the hardware installation procedures for the ECL Series LONWORKS controllers.
The Distech Controls ECL Series controllers are designed to control and monitor various HVAC equipment such as roof top units, air handling units as
well as chillers, boilers, and central plant applications. Moreover, these controllers are suitable for any lighting control and power measurement applica-
tions. This product line includes the following controllers: ECL‑203, ECL‑300, ECL‑400 Series, ECL‑600 Series.
For controllers equipped with an operator interface (ECL-x50 models), refer to the ECL‑x50 and ECB‑x50 Series Controller User Guide for how to use
the this interface.
The ECL‑600 Series are compatible with the IO Extension Module product line, which includes the following modules: ECx‑400, ECx‑410, and ECx-420
(refer to the ECx‑400 series IO Extension Module Hardware Installation Guide).
Each controller uses the LONWORKS TP/FT-10 communication protocol.
This document describes the hardware installation procedures for the following controllers: ECL‑203, ECL‑300, ECL‑400 Series, and ECL‑600 Series
controllers only.
£These controllers are all built on a similar platform, but have different numbers of inputs and outputs. Moreover,
each individual model has different amounts of digital and/or universal outputs. For more information on the
specific layout and functionality of each controller, please refer to their individual datasheets.
£The following controllers are housed in small enclosures: ECL‑203 Series and ECL‑300 Series.
£The following controllers are housed in large enclosures: ECL‑400 Series and ECL‑600 Series.
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 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.
£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 corroding, deteriorating or explosive vapors, fumes or gases may be present.
£Record the 12-character Neuron® ID located on either end of the device (shown on a sticker below the barcode), for later commissioning.
£Allow for proper clearance around the device’s enclosure and wiring terminals to provide easy access for hardware configuration and maintenance.
£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.
£Orient the controller with the ventilation slots and power supply/output terminal block connectors towards the top to permit proper heat dissipation.
£The device’s plastic enclosure has a back plate that is separable from the front plate allowing the back plates (with the connectors) to be shipped di-
rectly to the installation site while all the engineering is done in the office.
£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.
£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 Distech Controls, the functionality and the protection provided by the device may
be impaired.
Installation Guide

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Any type of modification to any Distech Controls product will void the product’s warranty
Take special care to keep the front and back plate aligned when separating and joining them.
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.
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.
Products must be disposed of at the end of their useful life according to local regulations.
Read the Hardware Installation Guide for more information.
UL marking: conforms to the requirements of the UL certification.
FCC marking: This device complies with FCC rules part 15, subpart B, class B.
Warning Symbol: Significant information required. Refer to the Hardware Installation Guide.
Alternating Current
Direct Current
General Wiring Recommendations
Risk of Electric Shock: Turn off power before any kind of servicing to avoid electric shock.
£All wiring must comply with electrical wiring diagrams as well as national and local electrical codes.
£To connect the wiring to a device, use the terminal connectors. Use a small flat screwdriver to tighten the terminal connector screws once the wires
have been inserted (strip length: 0.25’’ (6mm), maximum tightening torque 0.5 Nm).
£Comply with all network and power supply guidelines outlined in the Network Guide.
£Always use unshielded cabling with a minimum Category 5 (CAT5) cable for ethernet communications.
£Keep wiring separate according to their function and purpose to avoid any ambient noise transmission to other wires. Use strapping to keep these
wires separated. For example, keep power, hazardous voltage, SELV, PELV, network, and input wiring separate from each other.
£The board connectors accept wires or flat cables ranging from 22 to 14AWG (0.644 to 1.630mm diameter) per pole. However, power cables must be
between 18 and 14AWG (1.024 to 1.630mm diameter).
£Keep all wires away from high speed data transmission cables (for example, Ethernet, etc.).
£Do not connect the universal inputs, analog/digital outputs or common terminals to earth or chassis ground (unless stated otherwise).
£Keep input and output wiring in conduits, trays or close to the building frame if possible.

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Controller Dimensions & Components
Figure2: Rear view of large enclosure
Figure3: Rear view of small enclosure
Figure4: Side view of large and small enclosure

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Mounting Instructions
The controllers can be mounted on a DIN rail to speed up the installation procedure. They are also equipped with two mounting holes 0.25” x
0.165” (6.35mm x 4.191mm). The controllers can be mounted in a panel or on a wall by using appropriate screw types (use sheet metal, thread forming,
or self-tapping screws accordingly).
The controller’s mounting orientation must be horizontal with controller’s back attached to a vertical wall surface.
Figure5: Permitted Mounting Positions
DIN Rail-Mounted Installation
1. Ensure the DIN rail is properly mounted on the wall.
2. Simply clip controller onto the DIN rail.
Wall-Mounted Installation
3. Open the enclosure by separating the front and back plate while pressing on the side clips.
4. Use the back plate’s mounting holes to mark the location of any holes that need to be drilled.
5. Drill the holes.
6. Clean the surface and mount the controller using the appropriate screw types.

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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 LONWORKS network for communications. It can
be downloaded from our website.
It is recommended to wire only one controller per 24VAC transformer.
If only one 24VAC transformer is available, determine the maximum number of controllers that can be supplied using the following method to determine
the required power transformer capacity:
£Add up the maximum power consumption of all controllers including external loads and multiply this sum by 1.3.
£If the resulting number is higher than 100VA, use multiple transformers.
Use an external fuse on the 24VAC side (secondary side) of the transformer, as shown below, to protect all controllers against power line spikes.
Maintain consistent polarity when connecting controllers and devices to the transformer. That is, the COM terminal of each controller and each peripheral
should be connected to the same terminal on the secondary side of the transformer.
Connecting the power source to Electrical System Ground is not a requirement for proper system operation. However
it is good installation practice to do so in order to maintain the same potential between all controllers and Protective
Earth.
Always use a separate transformer for each ECL-600 series controller and for each of its associated IO Extension
Module (ECx‑400s).
One terminal on the secondary side of each of these transformers must be connected to the building’s ground and to
the respective controller’s or IO Extension Modules’ 24V COM terminal.
Failure to maintain consistent polarity throughout the entire network will result in a short circuit and/or damage to the
controller!
The COM terminals of the controller are internally wired to the 24V COM terminal of the power supply. Connecting a
peripheral or another controller to the same transformer without maintaining polarity between these devices will
cause a short circuit.
Controller 2 Transformer
Controller 1
AC
24V AC
24V COM
Fuse: 4 A Max.
Fast Acting
24 VAC
Electrical System Ground
- At Transformer Only
24V AC
24V COM
Figure6: Power wiring – AC
Controller 2
Controller 1
24V AC/DC
24V COM
Fuse: 4 A Max.
Fast Acting
Electrical System Ground
- At Power Supply Only
24V AC/DC
24V COM 24 VDC
Figure7: Power wiring – DC

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Jumper Identification and Configuration
Controllers have the following onsite configurable jumpers.
Net Port
* Factory- default position
Subnet
Port
Wireless
Port
Net to Subnet Settings
Enabled Disabled*
Figure8: ECL-203Controller Jumper Locations
Net Port
* Factory- default positions
Universal Outputs (UO)
0- 10V / 0-20 mA Select
0-10V* 0- 20mA
Subnet
Port
Wireless
Port
Universal Inputs (UI)
0- 20 mA Enable / Disable
0-20 mA
Disable*
0-20 mA
Enable
LONWORKS Network Board
Net to Subnet Settings
Enabled Disabled*
Figure9: ECL-300Controller Jumper Locations
* Factory- default positions
LONWORKS Network Board
Universal Outputs (UO)
0-10 V / 0- 20 mA Select
0-10V* 0- 20mA
Universal Inputs (UI)
0-20 mA Enable / Disable
0-20 mA
Disable*
0-20 mA
Enable
ECL- 600 ONLY: Subnetwork
EOL Termination
Subnet
Port
EOL Off
(Disabled)*
EOL On
(Enabled)
EOL Off
(Disabled)*
EOL On
(Enabled)
OR
Wireless
Port
Typical locations: Quantity may vary according to controller model
Net to Subnet Settings
Enabled Disabled *
Net Port
Figure10: ECL-400SeriesandECL-600SeriesController Jumper Locations

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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.
£The shield of the wire should be grounded on the controller side only and shield length should be kept as short as possible.
Table 1 shows the ECL-203, ECL-300, ECL-400, and ECL-600 Series controller pulse and current input jumper support. Table 2 shows the available uni-
versal input (UIx) wiring methods.
Controller Fast and Slow Pulse Inputs support Current Input Jumper support:
0 to 10VDC / 0 to 20mA
50Hz: 10ms minimum ON/OFF
(Fast Pulse)
1Hz: 500ms minimum ON/OFF
(Slow Pulse)
ECB‑203 None UI1 to UI6 None
ECB‑300 UI1 to UI4 UI5 to UI10 Yes; see Table 2
ECB-400 Series UI1 to UI4 UI5 to UI12
ECB-600 Series UI1 to UI4 UI5 to UI16
Table1: Controller Input Support
Sensor Input Type Input Connection Diagram
£Dry Contact input.
UIx
COM
To Digital
Input
Digital Dry Contact
NO-NC
£RTD input (for example, 1000Ω).
£Thermistor Input (for example, 10kΩ type II and III).
UIx
COM
To Analog-
To-Digital
Converter
RTD/
Thermistor
£Resistive input, (for example, use with 10kΩ and 100kΩ potentiometers).
UIx
COM
To Analog-
To-Digital
Converter
Potentiometer
10kΩ
ECL-203 Series:
£0 to 20mA input used with a 2-wire, 0 to 20mA sensor powered by the controller’s internal
15VDC power supply.
+
–
Sensor 0-20mA UIx
COM
+15VDC
To Controller’s
Analog-To-Digital
Converter
249Ω / ¼W
ECL-203 Series:
£0 to 20mA input used with a 2-wire, 0 to 20mA sensor powered by an external 24VDC
power supply.
-
+
0-20mA
Sensor
UIx
COM
To Analog-
To-Digital
Converter
24VDC
249Ω ¼W
ECL-203 Series:
£0 to 20mA input used with a 3-wire, 0 to 20mA sensor powered by an external 24VAC
power supply.
AC
+
Common
0-20mA
Sensor
UIx
COM To Analog-
To-Digital
Converter
24VAC
249Ω ¼W
ECL-203 Series:
£0 to 20mA input used with a sensor powered by its own power source.
+
-
0-20mA
Sensor
UIx
COM
To Analog-
To-Digital
Converter
249Ω ¼W

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Sensor Input Type Input Connection Diagram
ECL‑300, ECL‑400, and ECL‑600 Series:
£0 to 20mA input used with a 2-wire, 0 to 20mA sensor powered by the controller’s internal
15VDC power supply.
£For jumper location, see Jumper Identification and Configuration [pg.6].
+
-
Sensor 0-20mA Controller
0-20mA Input
Equivalent
Circuit
UIx
COM
To Analog-
To-Digital
Converter
249Ω
Jumper
Setting
0-10V
0-20mA
+15VDC
ECL‑300, ECL‑400, and ECL‑600 Series:
£0 to 20mA input used with a 2-wire, 0 to 20mA sensor powered by an external 24VDC
power supply.
£For jumper location, see Jumper Identification and Configuration [pg.6].
-
+
Sensor
0-20mA Controller
0-20mA Input
Equivalent
Circuit
UIx
COM
To Analog-
To-Digital
Converter
249Ω
Jumper
Setting
0-10V
0-20mA
24VDC
ECL‑300, ECL‑400, and ECL‑600 Series:
£0 to 20mA input used with a 3-wire, 0 to 20mA sensor powered by an external 24VAC
power supply.
£For jumper location, see Jumper Identification and Configuration [pg.6].
AC
+
Common
Sensor 0-20mA Controller
0-20mA Input
Equivalent
Circuit
UIx
COM
To Analog-
To-Digital
Converter
249Ω
Jumper
Setting
0-10V
0-20mA
24VAC
ECL‑300, ECL‑400, and ECL‑600 Series:
£0 to 20mA input used with a sensor powered by its own power source.
£For jumper location, see Jumper Identification and Configuration [pg.6].
+
-
Sensor
0-20mA Controller
0-20mA Input
Equivalent
Circuit
UIx
COM
To Analog-
To-Digital
Converter
249Ω
Jumper
Setting
0-10V
0-20mA
£Voltage input used with a 3-wire 0 to 10VDC or 0 to 5VDC sensor powered by an external
24VAC power supply.
AC
+
Common
0-10V
Sensor
UIx
COM To Analog-
To-Digital
Converter
24VAC
£Voltage input used with a 0 to 10VDC or 0 to 5VDC sensor powered by its own power
source.
+
-
0-10V
Sensor
UIx
COM
To Analog-
To-Digital
Converter
£Slow Pulse – Internal supply: 2-wire pulse meter for ECL‑203, ECL‑300, ECL‑400, and
ECL‑600 Series controllers
£Connect the pulse input according to the figure for a pulse meter that can pull-down a
+5VDC supply with a 10KΩ pull-up resistor (internal supply type).
£Refer to Table 1 for more information on Controller Input Support
Pulse Meter
Output
Controller
Pulse Input
Equivalent
Circuit
UIx or DIx
COM To Pulse Count
Accumulator
+
-
10KΩ
5VDC
£Fast Pulse – Internal supply: 2-wire pulse meter for ECL‑300, ECL‑400, and ECL‑600 Series
controllers
£Connect the pulse input according to the figure for a pulse meter that requires more than
5VDC to operate using built in controller power source from 6VDC to 15VDC maximum.
£Refer to Table 1 for more information on Controller Input Support
Pulse Meter
Output
Controller
15VDC
COM
+
-
Suitable current-limiting resistor as
recommended by the pulse meter’s
manufacturer (field supplied)
UI1 to UI4
To Pulse Count Accumulator
Trigger Threshold: 2.5Volts
23.5kΩ
Equivalent Load
£Fast Pulse – External supply: 2-wire pulse meter for ECL‑300, ECL‑400, and ECL‑600 Se-
ries controllers
£Connect the pulse input according to the figure for a pulse meter that requires more than
5VDC to operate using an external power source from 6VDC to 27VDC maximum.
£Refer to Table 1 for more information on Controller Input Support
Pulse Meter
Output
Controller
COM
To Pulse Count Accumulator
Trigger Threshold: 2.5Volts
+
-
Suitable current-limiting
resistor as recommended
by the pulse meter’s
manufacturer (field supplied)
Power Source
6 to 27VDC Max.
UI1 to UI4
23.5kΩ
Equivalent Load
Table2: Input Wiring

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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.
£For a wire length up to 200’ (61m) long, a shielded 18AWG wire is recommended.
£The shield of the wire should be grounded on the controller side and the shield length should be kept as short
as possible.
£For relay outputs (DOx); select appropriately-sized wiring suitable to the current load.
£To measure the state of a triac output, an external load must be connected.
Table 3 shows the ECL-203, ECL-300, ECL-400, and ECL-600 Series controller Output and Jumper support. Table 4 shows the available output wiring
methods.
Controller Digital (Triac) Outputs Universal Outputs Jumper
0 to 10VDC/0 to 20mA
ECL‑203 5 3
ECL‑300 0 8
ECL‑4x0 Series 0 12
ECL‑4x3 Series 8 4
ECL‑600 Series 0 12
Table3: Controller Output Support
Control Output Type Output Designation Output Connection Diagram
£Discrete 0 or 12VDC digital, Pulse, or PWM output controlling
a 12VDC relay. Maximum 60 mA (minimum load resistance
200Ω).
UOx
From
Digital
Output
12VDC Relay
A1
A2
UOx
COM
£Current 0 to 20mA universal output & jumper configuration
£For ECL-300, ECL-400, and ECL-600 Series only
£For jumper location, see Jumper Identification and Configura-
tion [pg.6].
UOx
0-20mA
Common
From Digital-To-
Analog Output
UOx
COM
JUMPER
SETTING
0-10V
0-20mA
£Linear 0 to 10VDC digital to analog output. UOx
0-10V
Common
From Digital-
To-Analog
Output
UOx
COM
£0 to 10VDC voltage output controlling an analog actuator that
is powered by an external 24VAC power source.
UOx
0-10V
~ or +
From Digital-
To-Analog
Output
UOx
COM
Actuator
or -
24VAC
£24VAC externally-powered triac output controlling a floating
actuator1.
£Ensure that the external power supply is grounded as shown.
DOx
Actuator
~
~
24VAC
DOy
Cx
DOx
Cy
£24VAC controller-powered triac output controlling a relay1 with
line and neutral switching.
£Ensure that the transformer’s secondary winding is grounded
as shown.
DOx
DOx
Cx
24VAC Relay
A2
A1
Transformer
24VAC
24VCOM AC
Electrical
System Ground
Fuse: 4A Max.
Fast Acting
Controller
24VAC
Load
DOx
Cx
24VAC Relay
A2
A1
Transformer
24VAC
24VCOM AC
Electrical
System Ground
Fuse: 4A Max.
Fast Acting
Controller
24VAC
Load
Line Switching Neutral Switching

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Control Output Type Output Designation Output Connection Diagram
£24VAC externally-powered triac output controlling a relay1 with
line and neutral switching.
£Ensure that the transformer’s secondary winding is grounded
as shown.
DOx
DOx
Cx
24VAC Relay
A2
A1
Transformer
AC
Electrical
System Ground
Fuse: 4A Max.
Fast Acting
24VAC
Load DOx
Cx
24VAC Relay
A2
A1
Transformer
AC
Electrical System
Ground
Fuse: 4A Max.
Fast Acting
24VAC
Load
Line Switching Neutral Switching
Table4: Output Wiring
1. Maximum output current for all digital triac outputs is 0.5A continuous or 1A @ 15% duty cycle for a 10-minute period.
Subnet-Wiring
The subnet is used to connect a range of Allure Series Communicating Sensors:
£The Allure EC-Smart-Vue Series sensor is a communicating room temperature sensor with backlit display graphical menus and VAV balancing ca-
pabilities.
£The Allure EC-Smart-Comfort and Allure EC-Smart-Air Communicating Sensors are a range of communicating room temperature sensors.
Connect the Allure Series to the controller’s Subnet Port with a standard Category 5e Ethernet patch cable fitted with RJ-45 connectors. Refer to the Net-
work 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 www.distech-controls.com website. See also the Hardware Installation Guide sup-
plied with the Allure Series.
If you make your own patch cable, see the Allure Series Hardware Installation Guide.
Protect the controller’s connector from being pulled on when a cable to the Allure Series is connected. Create a
strain-relief by looping the cable and attaching it to a solid object with a nylon tie so that a tug on the cable will not
pull out the connector on the controller.
Subnet Wiring with the ECL‑600 Series Controller
ECx-400 series IO Extension Modules are connected to the SUBNET– and SUBNET+ terminals of the ECL‑600 series controller. The Network Guide
provides extensive information and requirements to implement the subnetwork for the ECx-400 series IO Extension Modules. It contains information
about network length, cable type, controller addressing, etc. It can be downloaded from our website. See also the Hardware Installation Guide supplied
with the ECx-400 series IO Extension Module.
Communications Wiring
The recommended cable type for LONWORKS® communications is 22AWG (0.65 mm), twisted pair, unshielded. The LONWORKS communication wire is po-
larity insensitive and can be laid out in a bus, star, loop or free topology. For loop topology, polarity is important, special care must be taken when con-
necting the LONWORKS network to avoid short circuit.
It is recommended to use the bus topology network configuration for all LONWORKS communication wiring, as it allows
for easy network troubleshooting.
Connect both wires to the LON+ and LON‑ terminals of the controller. If inserting multiple wires in the terminals, ensure to properly twist wires together
prior to inserting them in the terminal connectors.
2
1
2
LON
1
LON
LON Network
To Next
Controller
2
1
LON2
1LON
Figure11: Communication Wiring
If inserting multiple wires in the terminals, ensure to properly twist wires together prior to inserting them into the terminal connectors.

11 / 16
For more information and detailed explanations on network topology and wire length restrictions, refer to the Network Guide, which can be downloaded
from our website.
It is important to use proper network terminators depending on the type of network topology used. Failure to do so
may result in communication errors between controllers.
Selecting Network Terminators
For a bus topology, 2 network terminators are required (1 at each end of the bus topology channel). For a free topology, 1 network terminator is required
and it can be put anywhere on the channel.
When used with anAllure EC-Smart-Vue Series Communicating Sensor, the network can be accessed at the sensor’s audio plug port for commissioning
and maintenance purposes, when the two Net to Subnet Port Settings jumpers inside the ECL Series controller are set to Enable (for jumper location,
see Figure 9). This will connect the main LONWORKS network to the subnet Cat5e cable.
Recommendation: Only a limited number of controllers on a LONWORKS network segment should have their Net to
Subnet Port Settings jumpers enabled. Enabling too many Allure EC-Smart-Vue sensors with network access may
cause network communication issues. If there are any network communication problems, refer to the
Troubleshooting Guide.
The Cat5e cable length is restricted by the maximum allowable subnetwork bus length (see the Allure EC-Smart-Vue Hardware Installation Guide for
more information).
Controller
Bus Network Topology: 22AWG (0.65mm) Unshielded Twisted Pair Network Cable
Cat 5e communications cable:
· Communicating Sensor Sub-Network Bus
· LONWORKS Network when Net to Subnet
Port Settings jumpers are Enabled
E
D
Enable
Disable
For a Few
Controllers ONLY:
Standard Net to
Subnet Port
Settings:
DISABLED - this
is the factory
default setting
Communicating Sensor
Net to Subnet Port Settings
Optionally Enabled
Figure12: LONWORKS Network Bus Topology
Temporary Network Access
To temporarily access the LONWORKS LAN for commissioning and maintenance purposes, connect a LONWORKS network interface to the NET PORT audio
plug. Wire a standard ⅛” (3.5 mm) three-conductor (stereo jack) or two-conductor (mono jack) as shown below.
Figure13: ⅛” (3.5 mm) Stereo or Mono Jack Connection for a LONWORKS Network Interface
Wireless Installation
When connected to a Wireless Receiver, controllers can receive input signals from a wide selection of wireless devices. Compatible wireless devices in-
clude temperature sensors, duct sensors, window/door contacts and light switches. These devices are easy to install, and can be mounted on a wide
range of building materials.
Before connecting any wireless equipment to the controller, refer to the Open-to-Wireless Application Guide.

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Connecting the Wireless Receiver
The Wireless Receiver is connected to the controller using a 2m (6.5ft) telephone cable with 4P4C modular connectors at both ends. Do not exceed this
cable length. The Wireless Receiver’s telephone socket is located inside the device. To locate it, open the Wireless Receiver by separating its front and
back plates.
Figure14: Location of the Wireless Receiver’s telephone socket
Connecting to the Controller’s Wireless Port
Each controller has a wireless port in which one end of the Wireless Receiver’s telephone cable plugs in.
Strain relief and Terminal Block Cover
In certain jurisdictions, terminal block covers are required to meet local safety regulations. Strain reliefs and terminal block covers are available for con-
trollers housed in large enclosures and are used to relieve tension on the wiring and conceal the controllers’ wire terminals. Strain reliefs and terminal
block covers are optional and are sold as peripherals.
Prior to connecting all wires, it is recommended to install the strain relief. Three screws are provided for its installation under the bottom part of the enclo-
sure. Tie wraps can then be used to group wires together and attach them securely to the strain relief in an effort to relieve undue tension. If necessary,
the terminal block cover can then be clipped on to the strain relief as shown below.
Figure15: Large enclosure strain relief and terminal block cover installation
Maintenance
Unplug device before any kind of servicing.
The device requires minimal maintenance, but it is important to take note of the following:
£If it is necessary to clean the outside of the device, use a dry cloth.
£Using a torque limited screw driver set to 0.4 Nm (3.54 in-lb), retighten terminal connector screws annually to ensure the wires remain securely
attached.

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Disposal
The Waste Electrical and Electronic Equipment (WEEE) Directive set out regulations for the recycling and disposal of products. The WEEE2002/96/EG
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.
Products must be disposed of at the end of their useful life according to local regulations and the WEEE Directive.
North American Emissions Compliance
United States
Changes or modifications not expressly approved by Distech Controls could void the user's authority to operate the
equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential and commercial installation. This equipment generates, uses and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
£Reorient or relocate the receiving antenna.
£Increase the separation between the equipment and receiver.
£Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
£Consult the dealer or an experienced radio/TV technician for help.
Canada
This Class (B) digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la Classe (B) respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

14 / 16
Typical Air Handling Unit Application Wiring Diagram
Service PIN Button
CoolHeat
Return Air Temperature
10kΩ type II
Supply Air Temperature
10kΩ type II
Mixed Air Temperature
10kΩ type II
Supply Air Humidity
2-wire, 4-20mA
Supply Fan State
Digital contact
Return Fan State
Digital contact
Damper
Return Air Humidity
2-wire, 4-20mA
CT CT
0-10
VDC ~
+-0-10
VDC ~
+-
Humidifier
A2 A1 A2 A1
To
Supply
Fan
Starter
To
Return
Fan
Starter
0-10
VDC ~
+-0-10
VDC ~
+-
Transformer
24VAC
4A Fuse
Fast Acting
EOL Enabled at
the last sensor
at the end of
the Bus
From Previous Device
To Next Device
LONWORKS Network
*
* 249 ohm resistor built-in for inputs configured as 4-20mA
ECL-600 LONWORKS®
OPTIONAL: Connect
to Electrical System
Ground
Allure EC-Smart-Vue
ON
EOL
OFF
Back of Allure
EC-Smart-Vue
BAC
LON
NET
PORT
Figure16: Typical Power and Network Connections with an Allure EC-Smart-Vue sensor
Although only the Allure EC-Smart-Vue is shown here, any other Allure Series Communicating Sensor can be connected to the subnet port in
this manner. Refer to the sensor’s corresponding Hardware Installation Guide for more details.

15 / 16
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. See Power Wiring.
Controller cannot communicate on the LONWORKS network
Absent or incorrect supply voltage 1. Check power supply voltage between 24VAC ±15% and 24VCOM pins and ensure that it is within acceptable limits.
2. Check for tripped fuse or circuit breaker.
Overloaded power transformer Verify that the transformer used is powerful enough to supply all controllers.
Network not wired properly Double check that the wire connections are correct.
Absent or incorrect network termination Check the network termination(s).
Too many Allure EC-Smart-Vue Sensors are
providing network access
Disable the Net to Subnet Port Settings jumpers on all controllers (for jumper location, see Figure 9). If communications are
re-established, re-enable only a few Allure EC-Smart-Vue sensors to have network access.
Controller communicates well over a short network, but does not communicate on large network
Network length Check that the total wire length does not exceed the specifications of the Junction Box and Wiring Guideline for Twisted Pair
LONWORKS Networks.
Wire type Check that the wire type agrees with the specification of the Junction Box and Wiring Guideline for Twisted Pair LONWORKS
Networks.
Network wiring problem Double check that the wire connections are correct.
Absent or incorrect network termination Check the network termination(s). Incorrect or broken termination(s) will make the communication integrity dependent upon
a controller’s position on the network.
Extra capacitance Make sure that no extra capacitance is being connected to the network other than the standard FTT circuit and a maximum
of a 3 meter stub (in bus topology).
Number of controllers on network segment
exceeded
The number of controllers on a channel should never exceed 64. Use a router or a repeater in accordance to the Junction
Box and Wiring Guideline for Twisted Pair LONWORKS Networks.
Network traffic Query node statistics to check for errors.
Use a LONWORKS protocol analyzer to check network traffic.
I/O Extension Module cannot communicate on the subnetwork
Absent or incorrect supply voltage 1. Check power supply voltage between 24VAC ±15% and 24VCOM pins and ensure that it is within acceptable limits.
2. Check for tripped fuse or circuit breaker.
Overloaded power transformer Verify that the transformer used is powerful enough to supply all controllers. See Power Wiring.
Network not wired properly Double check that the wire connections are correct.
There is another controller with the same Subnet
ID on the subnetwork
Each I/O Extension Module on the subnetwork must have a unique Subnet ID. Look at the Subnet ID DIP switch on the
faceplate of each I/O Extension Module.
Network length Check that the total wire length does not exceed the specifications in the Network Guide.
Wire type Check that the wire type agrees with the specification of the Network Guide.
Absent or incorrect network termination Check the network termination(s). Only the last ECx-400 I/O Extension Module must have its EOL termination set to ON.
When one or more Allure EC-Smart-Vue sensors are connected to the controller, only the last sensor must have its EOL
termination set to ON. See the Network Guide for more information.
Hardware input is not reading the correct value
Input wiring problem Check that the wiring is correct according to this manual and according to the peripheral device’s manufacturer.
Configuration problem Using EC-gfxProgram, check the configuration of the input. Refer to the EC-gfxProgram user guide for more information.
Over-voltage or over-current at an input An over-voltage or over-current at one input can affect the reading of other inputs. Respect the allowed voltage / current
range limits of all inputs. Consult the appropriate datasheet for the input range limits of this controller.
Open circuit or short circuit Using a voltmeter, check the voltage on the input terminal. For example, for a digital input, a short circuit shows
approximately 0V DC and an open circuit shows approximately 5V DC.
Hardware output is not operating correctly
Fuse has blown (Auto reset fuse) Disconnect the power and outputs terminals. Then wait a few seconds to allow the auto-reset fuse to cool down. Check the
power supply and the output wiring. Reconnect the power.
Output wiring problem Check that the wiring is correct according to this manual and according to the peripheral device’s manufacturer.
Configuration problem Using EC-gfxProgram, check the configuration of the input. Refer to the EC-gfxProgram user guide for more information.
0 to 10V output, 24VAC powered actuator is not
moving.
Check the polarity of the 24VAC power supply connected to the actuator while connected to the controller. Reverse the
24VAC wire if necessary.
Wireless devices not working correctly
Device not associated to controller Using EC- gfx Program, check the configuration of the input. Refer to the EC-gfxProgram user guide for more information.
Power discharge 1. Recharge device with light (if solar-powered) or replace battery (if battery-powered),
2. Ensure sufficient light intensity (200lx for 4 hours/day).

16 / 16 ECL Series_IG_18_EN
Device too far from the Wireless Receiver Reposition the device to be within the range of the Wireless Receiver. For information on typical transmission ranges, refer
to the Open-to-Wireless Application Guide.
Configuration problem Using the device configuration plug-in or wizard, check the configuration of the input. Refer to the Wireless Battery-less
Sensors and Switches Solutions Guide for more information.
Rx/Tx LEDs
RX LED not blinking Data is not being received from the LONWORKS data bus.
TX LED not blinking Data is not being transmitted onto the LONWORKS data bus.
Status LED– Normal Operation
One fast blink Initialization: The device is starting up.
Fast blink continuous:
(150ms On, 150ms Off, continuous)
Firmware upgrade in progress. Controller operation is temporarily unavailable. The new firmware is being loaded into
memory. This takes a few seconds. Do not interrupt power to the device during this time.
The Status LED is always OFF The controller is operating normally.
Status LED blink patterns – Repeats every 2 seconds (highest priority shown first)
Long blink continuous:
(1s On, 1s Off, continuous)
The controller is not commissioned.
Appropriate action: Commission the controller.
Long Long Long blink
(800ms On, 300ms Off, 800ms On, 300ms Off,
800ms On)
The controller is offline.
Appropriate action: Set the controller Online
Long Short Short Short blink
(800ms On, 300ms Off, 150ms On, 300ms Off,
150ms On, 300ms Off, 150ms On)
The controller is in bypass mode.
Appropriate action: Set the controller Online
Short Short Long blink
(150ms On, 300ms Off, 150ms On, 300ms Off,
800 ms On)
Poor-quality power; The device has browned-out: The voltage at the 24VAC and 24VCOM terminals has gone below the
device’s acceptable limit during power up.
Fast blink 12x:
(80ms On, 80ms Off, 12x)
Wink. The wink function is used to identify a device.
For issues with the Allure EC-Smart-Vue Series Communicating Sensor, refer to the Allure EC-Smart-Vue Series Communicating Sensor Hardware In-
stallation Guide.
©, Distech Controls Inc., 2012 - 2019. 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.
Persons using this manual are assumed to be trained HVAC specialist / installers and are responsible for using the correct wiring procedures and maintaining safe working conditions with fail-safe environ-
ments. Distech Controls reserves the right to change, delete or add to the information in this manual at any time without notice.
Distech Controls, the Distech Controls logo, Open-to-Wireless, Innovative Solutions for Greener Buildings, and Allure are trademarks of Distech Controls Inc. BACnet is a registered trademark of ASHRAE.
Global Head Office - 4205 place de Java, Brossard, QC, Canada, J4Y 0C4 - EU Head Office - ZAC de Sacuny, 558 avenue Marcel Mérieux, 69530 Brignais, France