Distech Controls ECB-VAV UUKL User manual

ECB-VAV UUKL
Figure1: ECB-VAV Controller
Product Description
This document describes the hardware installation procedures for ECB-VAV UUKL Single Duct Variable Air Volume Controllers for smoke control.
The Distech Controls Variable Air Volume 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 wireless
battery-less sensors and switches.
Each controller uses the BACnet® MS/TP LAN communication protocol and is BTL®-Listed as BACnet Application Specific Controllers (B-ASC).
The ECB-VAV UUKL is the only VAV model to be used in the Distech Controls UUKL smoke control system. For detailed
requirements, specifications, and procedures for installing and operating UL 864 Listed equipment, you must refer to the Distech
Controls UUKL Smoke Control System Design Guide (UUKL Design Guide_UG_10_EN). Failure to meet the requirements or follow
the procedures in the Distech Controls UUKL Smoke Control System Design Guide can void the UL 864 Listing for smoke control
equipment.
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.
£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.
£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.
Any type of modification to any Distech Controls product will void the product’s warranty
Installation Guide

2 / 18
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), tightening torque 0.5 Nm).
£Comply with all network and power supply guidelines outlined in the Network Guide. For the ECB-VAV UUKL controller, refer to the guidelines out-
lined in the Distech Controls UUKL Smoke Control System Design 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.
Controller
Wire Nuts
Terminal Block
Connector
Wire Connections
Pigtails
Figure2: Using a Wire Nut and Pigtail to Wire the Controller
£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.

3 / 18
Controller Dimensions & Components
±0.20
[± 5]
2.27 [57.62]
7.90 [200.61]
6.09 [154.76]
0.55 [13.85]
0.86 [21.95]
5.51 [139.93]
2.75 [69.96] 3.70 [94.04]
Front Profile
0.40 [10.05]
1.25 [31.75]
Inches [Millimeters]
2.27 [57.62]
Sliding Grommet
Damper Shaft
Clamping
Mechanism
Opening for
Damper Shaft
Typical Electrical Connectors
Actuator
Clutch for
Manual
Adjustment
Pressure Sensor Inputs –
High-Low Sensor Connection
Polarity is Unimportant
Figure3: ECB-VAV Dimensions and Components
DIP Switch Identification and Configuration
* Factory-default positions
FUSE
Cover Removed
Jumpers for
DO1 & DO2
Jumpers for
DO3 & DO4
Digital Outputs (DO)
Power Source
Triac Internal
Power*
Triac External
Powered
1 2 3 4 5 6 7 8
NETWORK ADDRESS
O N
1 2 3 4 5 6 7 8
NETWORK ADDRESS
O N
1 2 3
O N
1 2 3
O N
BIAS BIAS
EOL
BIAS and EOL DIP SwitchBIAS and EOL DIP Switch
Network
Addressing
Network
Addressing
Figure4: ECB-VAV (cover removed)

4 / 18
Mounting Instructions
Each controller is specially designed for easy installation either directly 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 arrangement opposes the torque applied to the damper shaft.
Mounting Position
To prevent condensation on the VAV box’s damper shaft from entering the controller’s electronics, the controller’s mounting orientation should be any
position above the damper shaft (between 0 and 180°) so that any condensation from the damper shaft will fall away from the controller’s electronics.
Further countermeasures may be required in some installations. This is important in hot, humid climates where the VAV box is located near exterior
doors or loading bays that may be blocked open or when the VAV box air supply is below 50°F (10°C).
VAV Box Shaft
0° 180°
90°
270°
Figure5: Recommended Mounting Position Angle Range
Mounting Procedure for Terminal Covers
Terminal covers can be added to any VAV controller to protect inadvertent contact with the controller’s electrical connections.
£A terminal cover kit can be added to both sides of the controller.
Controllers with terminal block covers can only be mounted on a flat surface that is sufficiently large to provide space around the installation. In this sce-
nario, conductors must be made inaccessible and wiring must comply with local wiring regulations and methods appropriate for fixed equipment installa-
tion in a building (the use of cable conduits and trunking for example).
1. Separate the cover from the base of the terminal covers.
2. Attach the base of the terminal cover(s) to the underside of the VAV controller’s body with the tabs, as shown below.
Tabs that latch to the VAV controller’s body
Figure6: Terminal Cover Attachment Tabs
3. Install the VAV controller according to the next procedure, VAV Controller Mounting Procedure.
4. Connect and wire the controller according to the procedures shown later in this document.

5 / 18
VAV Controller Mounting Procedure
Mount the controller as follows:
1. Configure the controller’s DIP switches. Refer to DIP Switch Identification and Configuration [pg.3] for more information.
2. The VAV controller comes with the sliding grommet pre-installed.
3. Orient the controller into position on to the damper shaft so that wiring connections are easily accessible. The controller must be fitted onto the shaft
such that the base of the controller is parallel to the VAV box (perpendicular to the damper shaft). If the damper shaft has an external bushing that
prevents the controller from being mounted flush to the side of the VAV box, use a spacer of the same thickness to compensate and to ensure the
controller is at a right-angle to the shaft to prevent binding.
4. Screw the controller onto the VAV box through the controller’s Sliding Grommet. The sliding grommet allows the controller to move back and forth
when the VAV box’s damper shaft is off center. Ensure to center the grommet along its travel range and ensure that the screw enters the VAV box at
a right angle. Using a power screwdriver with a 6” extension, attach the controller to the VAV box with the 1” [25mm] screw provided with the con-
troller (See Supplied Mounting Hardware – Drive the screw at a right-angle to the VAV Box [pg. 5] for illustration) through the controller's sliding
grommet (See Standard Mounting Method: Mounting a controller on a damper shaft [pg. 5] for illustration). Otherwise, mark the positions for the
screw on the VAV box with a punch and then drill a hole the into the VAV box. Then attach the controller to the VAV box with the 1” [25mm] screw
provided with the controller.
Figure7: Screwdriver Shaft Extension
90°
90°
Operational
Grommet
Travel
Range
At Installation,
Align
Grommet to
this Mark
Sliding Grommet
Figure8: Supplied Mounting Hardware – Drive the screw at a right-angle to the VAV Box
Avoid over-tightening the screw so as to not strip the threads. Make sure the screw does not pierce too far into the VAV box and interfere
with damper blade movement.
5. Find the damper position by the marking typically found on the end of the damper shaft.
Figure9: Typical Damper Shaft End Marking
6. Determine the direction required to close the damper: Clockwise (CW) or Counterclockwise (CCW). Turn the damper shaft with a pair of pliers to fully
close the damper for 90° boxes or fully open the damper for 45° or 60° boxes
7. Press and hold down the Actuator Clutch for Manual Adjustment button (See Controller Dimensions & Components [pg.3] for illustration), and turn
the controller’s shaft coupler until it touches the mechanical end-stop to either the fully closed position (90° boxes) or the fully open position (45° and
60° boxes).
8. For 90° VAV boxes: If the damper closes CCW, turn the coupler to the CCW mechanical stop limit. If the damper closes CW, turn the coupler to the
CW mechanical stop limit. The open mechanical stop is factory preset for 90° boxes.
For 45° and 60° VAV boxes: The mechanical stops must be set for both the fully closed and fully open damper positions. By installing the controller at
the fully open position, the controller provides the open mechanical stop for 45° and 60° boxes. The closed damper seal provides the fully closed
stop.
9. Tighten the U-Bolt clamp on to the damper shaft using an 8 mm (5/16 in.) wrench or socket. Tighten the bolts between 11 and 15 N·m (100 and 130
lb·in).
10. Test for free damper shaft movement: Press and hold down the Actuator Clutch For Manual Adjustment button and manually turn the actuator cou-
pling to be certain that the actuator can rotate from full closed to full open positions without binding.
11. Connect the VAV box’s flow sensor tubing to the controller’s Pressure Sensor Inputs . The connection is polarity free (high-low ports are interchange-
able). Create a condensation trap in the pneumatic tubing by forming it into a vertical loop.
12. Finalize the installation by rotating the damper to the full open position.
Damper
Shaft
VAV Box
MillimetersInches
>40.00>1.50"
Minimum:
Sliding Grommet
Opening for
Damper Shaft
Mounting Screw
Figure10: Standard Mounting Method: Mounting a controller on a damper shaft

6 / 18
Power Wiring
Voltage for UUKL models: 24VAC; ± 15%, Class 2
Voltage for all non-UUKL models: 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. For the ECB-VAV UUKL controller, refer to the guidelines outlined in the Distech Controls UUKL Smoke Control System
Design Guide
It is recommended to wire only one controller per 24VAC transformer.
When calculating a controller’s power consumption to size the 24VAC transformer, you must also add the external loads the controller is going to supply,
including the power consumption of any connected subnet module (for example, Allure™ Series Communicating Sensors).
If only one 24VAC transformer is available, determine the maximum number of daisy-chained VAVs that can be supplied on a single power cable sup-
plied by a 100 VA transformer, according to the controller’s expected power consumption including external loads, the cable’s wire gauge, and the total
cable length from the following figure. Any installation condition that is outside of the parameters of the following graph should be avoided.
To maximize daisy-chaining performance, the transformer should be installed as close as possible to the first VAV. If this is not possible, then use 14
AWG wire to power the first VAV which can help reduce a voltage drop at the end of the daisy-chain.
The recommended minimum peak input voltage is 27.2Vp
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
100 200 300 400 500 600 700 800 900 1000
Max VAV in Daisy-Chain  
Total Wire Length in Feet

Daisy Chain Performance

VAV+SmartVue(AWG18)
VAV+SmartVue(AWG16)
VAV+SmartVue+2DO(1,6VAeach)(AWG18)
VAV+SmartVue+2DO(1,6VAeach)(AWG16)
VAV+SmartVue+SmartVueCO2+2DO(1,6VAeach)(AWG18)
VAV+SmartVue+SmartVueCO2+2DO(1,6VAeach)(AWG16)
A
B
C
D
E
F
A
B
C
D
E
F
(30) (60) (90) (120) (150) (180) (210) (240) (270) (300)
(meters)
Figure11: Maximum Number of VAV Devices on a Daisy-Chain at Evenly Spaced Intervals
Laboratory testing conditions for the above graph are as follows:
£Distance between each VAV is evenly spaced along the entire wire length
£Transformer specification: 100VA (120/24VAC)
£Tested at room temperature with low voltage line conditions: 108VAC (50Hz)

7 / 18
Daisy-Chain Wiring
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. One terminal on the secondary side of the transformer must be
connected to the building’s ground. All 24V COM terminals of all controllers and peripherals throughout the BACnet MS/TP network must be connected
to the grounded transformer terminal as shown below. This ensures that the 24V COM terminals of all devices connected to any BACnet MS/TP bus in
the building are at the same potential.
A mechanical ground is unacceptable: Do not use a pipe, conduit, or duct work for a ground. The power supply must
have a dedicated ground wire that comes from the main electrical supply panel.
Failure to maintain consistent polarity throughout the entire network will result in a short circuit and/or damage to the
controller!
Connecting a peripheral or another controller to the same transformer without maintaining polarity between these
devices will cause a short circuit.
24V AC
24V COM
Controller 1
Transformer
Fuse: 4 A Max.
Fast Acting
Electrical System Ground –
At Transformer Only
!
24V AC
24V COM
Controller 2
AC24 VAC
Figure12: Power Wiring
The following diagram shows the recommended wiring of the ECB-VAV Controller with and without a 3-wire peripheral. This configuration applies either
to a daisy-chain configuration or configuration with separate transformers. Note that internally, the COM terminals are no longer connected to the 24VAC
COM terminal but rather to the ground terminal.
24V AC
24V COM
Transformer
Electrical System Ground –
At Transformer Only
!
COM
UO5
UO6 Fuse: 4 A Max.
Fast Acting
OR
Chassis or
Earth Ground
Without 3-wire
peripheral
24V AC
24V COM
COM
UO5
UO6
24V AC
24V COM
COM
UO5
24V AC
24V COM
0 – 10V
With 3-wire
peripheral
AC24 VAC
Figure13: ECB-VAV Power Wiring with and Without 3-Wire Peripherals

8 / 18
Input Wiring
Input options must be properly configured in EC- gfx Program to ensure correct input readings. The table below shows the controller’s available universal
input designation. For terminal block connector wiring best practices, see General Wiring Recommendations. Inputs can be connected as follows.
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 the shield length should be kept as short as possible.
Sensor Input Type Input
Designation
Input Connection Diagram
£Dry Contact input.
£Pulsed input.
UIx
UIx
COM
To Digital Input
Digital Dry Contact
NO-NC
£Pulse input used with a 2-wire sensor powered by its own power source –
this input supports a maximum input frequency of 1Hz (500ms minimum ON/
OFF). 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).
UIx
Pulse Meter
Output
Controller
Pulse
Input
Equivalent
Circuit
UIx
COM To Pulse Count
Accumulator
+
-
10 kΩ
5 VDC
£RTD input (for example, 1000Ω).
£Thermistor Input (for example, 10kΩ type II and III).
UIx
UIx
COM
To Analog-To-
Digital Converter
RTD/
Thermistor
£Resistive input, maximum 350kΩ (for example, use with 10kΩ and 100kΩ
potentiometers).
UIx
UIx
COM
To Analog-To-
Digital Converter
Potentiometer
10kΩ
£0 to 20mA input used with a 2-wire, 0 to 20mA sensor powered by the con-
troller’s internal 18VDC power supply.
£An on-board 18VDC power supply can provide the necessary power for
20mA current loop sensor operation.
£Connect a 249Ω resistor between the UIx and COM terminals.
UIx
+
-
Sensor 0-20mA UIx
COM
To Analog-
To-Digital
Converter
+18VDC
249Ω / ¼W
£0 to 20mA input used with a 2-wire, 0 to 20mA sensor powered by an exter-
nal 24 AC/DC power supply.
£Connect a 249Ω resistor between the UIx and COM terminals.
UIx
-
+
Sensor
0-20mA
UIx
COM
To Analog-To-
Digital Converter
24VDC
249Ω ¼W
£0 to 20mA input used with a 3-wire, 0 to 20mA sensor powered by an exter-
nal 24 AC/DC power supply.
£Connect a 249Ω resistor between the UIx and COM terminals.
When daisy-chaining two or more controllers on one transformer, wire the
controller according to Figure 14.
UIx
AC
+
Common
Sensor UIx
COM
To Analog-To-
Digital Converter
24VAC
0-20mA
249Ω ¼W
£0 to 20mA input used with a sensor powered by its own power source.
£Connect a 249Ω resistor between the UIx and COM terminals.
UIx
+
-
Sensor
UIx
COM
To Analog-To-
Digital Converter
0-20mA
249Ω ¼W
£Voltage input used with a 3-wire 0 to 10VDC or 0 to 5VDC sensor powered
by an external 24 AC/DC power supply.
When daisy-chaining two or more controllers on one transformer, wire the
controller according to Figure 14.
UIx
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.
UIx
+
-
0-10V
Sensor
UIx
COM
To Analog-
To-Digital
Converter

9 / 18
Output Wiring
Output options must be properly configured in EC- gfx Program to ensure correct output values. For terminal block connector wiring best practices, see
General Wiring Recommendations and Figure 2.
Outputs can be connected as follows.
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.
Control Output Type Output
Designation
Output Connection Diagram
£Discrete 0 or 12VDC digital, Pulse, or PWM output controlling a 12VDC
relay.
UOx
From
Digital
Output
12VDC Relay
A1
A2
UOx
Cx
£0 to 10VDC voltage output. UOx
0-10V
Common
From Digital-
To-Analog
Output
UOx
Cx
£0 to 10VDC voltage output controlling an analog actuator that is powered
by an external 24VAC power source.
£This output can source up to 20 mA
UOx
0-10V
~ or +
From Digital-
To-Analog
Output
UOx
Cx
Actuator
or -
24VAC
£1 to 10VDC voltage output controlling dimmable lighting ballasts that re-
quire a current sink output (pull-down).
£This output can sink up to 2.5mA.
UOx
0-10V
Common
From Digital-
To-Analog
Output
UOx
COM
Ballast
Line
VAC
Neutral
£Discrete digital, Pulse, or PWM output: 24VAC externally-powered triac
controlling a relay1.
£Set the jumper according to Figure 5.
DOx
24VAC Relay
A1
A2
DOx
Cx-x
AC
JUMPER
SETTING
£Discrete digital, Pulse, or PWM output: 24VAC internally-powered triac
controlling a relay1,2
Set the jumper according to Figure 5.
DOx
24VAC Relay
A1
A2
DOx
Cx-x
JUMPER
SETTING
£24VAC externally-powered triac output controlling a floating actuator1.
£Set the jumper according to Figure 5.
DOx
DOx
Cx-x
Actuator
~
DOx ~
24VAC
JUMPER
SETTING
£24VAC internally-powered triac output controlling a floating actuator1.
£Set the jumper according to Figure 5.
DOx
DOx
Cx-x
Actuator
~
DOx ~
JUMPER
SETTING
1. Maximum output current for all triac outputs is 0.5A continuous or 1A @ 15% duty cycle for a 10-minute period.

10 / 18
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 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. See also the Hardware Installation Guide supplied 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 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.
Communications Wiring
The Network Guide provides extensive information and requirements to implement a BACnet MS/TP network. It contains information about network and
sub network length, cable type, device addressing, etc. It can be downloaded at the www.distech-controls.com website. 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. For the ECB-VAV UUKL
controller, refer to the guidelines outlined in the Distech Controls UUKL Smoke Control System Design Guide. The BACnet MS/TP communication wire is
polarity sensitive and the only acceptable topology is to daisy-chain the cable from one controller to the next.
£The first and last daisy-chained BACnet MS/TP device must have its EOL resistors enabled / installed. All other devices must have their EOL resis-
tor disabled (default factory setting).
£When the BACnet MS/TP data bus is connected to a following device, twist data bus shields together or connect directly to the shield terminal.
£Isolate all shields with electrical tape so there is no exposed metal that can touch ground or other conductors.
£The shield of the data bus must be connected to the electrical system ground at only one point – usually at one end of the bus as shown below.
£Connect no more than 50 devices to a BACnet MS/TP data bus.
Data Bus Shield:
Connect to the S
terminal
Up to 50
devices total
The shield of the data bus
must be connected to the
electrical system ground
at only one point –usually
at one end of the bus as
shown
First and last daisy-chained device:
-EOL Switches are ON
All other Devices::
-EOL Switches are OFF
NET +
NET -
SHIELD
EOL (DIP 2)
ON
EOL ON: For the
EC-BOS-8 as the
first or last daisy
chanied device
EC-BOS-8
+
-S
+
-S
END
EOL ON: For the
EC-BOS-8 as the
first or last daisy
chanied device
EC-BOS-8
+
-S
END
1 2 3
ON
BIAS
BIAS
EOL
1 2 3
ON
BIAS
BIAS
EOL
Front
MS/TP
NET -
SHIELD
EOL OFF
NET +
FUSE
Cover Removed
1 2 3 4 5 6 7 8
NETWORK ADDRESS
ON
1 2 3 4 5 6 7 8
NETWORK ADDRESS
ON
1 2 3
ON
1 2 3
ON
BIAS BIAS
EOL
Front
MS/TP
NET -
SHIELD
EOL OFF
NET +
FUSE
Cover Removed
1 2 3 4 5 6 7 8
NETWORK ADDRESS
ON
1 2 3
ON
BIAS BIAS
EOL
Front
MS/TP
NET -
SHIELD
EOL ON
NET +
FUSE
Cover Removed
1 2 3 4 5 6 7 8
NETWORK ADDRESS
ON
1 2 3 4 5 6 7 8
NETWORK ADDRESS
ON
1 2 3
ON
1 2 3
ON
BIAS BIAS
EOL
Front
MS/TP
NET -
SHIELD
EOL ON
NET +
FUSE
Cover Removed
1 2 3 4 5 6 7 8
NETWORK ADDRESS
ON
1 2 3
ON
BIAS BIAS
EOL
NET +
NET -
SHIELD
EOL (DIP 2)
OFF
1 2 3
ON
BIAS
BIAS
EOL
1 2 3
ON
BIAS
BIAS
EOL
NET +
NET -
SHIELD
EOL (DIP 2)
OFF
1 2 3
ON
BIAS
BIAS
EOL
Figure14: BACnet MS/TP Communications Wiring
BIAS DIP switches must be off unless they are required by another controller other than an ECB-VAV that is on the same daisy-chain. In
the case where there is another device other than a ECB-VAV on the same daisy-chain, then both BIAS DIP switches must be in the ON
position on no more than ONE controller on the line. Typically the most easily accessible controller will have its BIAS DIP switches in the
ON position such as the first VAV, last VAV, or the supervisor (if equipped).
If inserting multiple wires in the terminals, ensure to properly twist wires together prior to inserting them into the terminal connectors.

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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. For the ECB-VAV UUKL controller, refer to the guidelines outlined in the Distech Controls UUKL Smoke Control System Design Guide
Device Addressing
The Network Guide provides extensive information and requirements to implement a BACnet MS/TP network. It contains information about network plan-
ning and MAC Address numbering schemes. It can be downloaded from the www.distech-controls.com website. For the ECB-VAV UUKL controller, refer
to the guidelines outlined in the Distech Controls UUKL Smoke Control System Design Guide.
The MAC Address must be set according to your network planning document by setting the DIP switch located under the cover or when this DIP switch
is set to 0 (all off), the MAC address can be set by connecting an Allure EC-Smart-Vue Series Communicating Sensor to the controller as shown in Step
5 of Setting the Communicating Sensor Subnet ID in the following section. An example of how to set the device’s MAC Address DIP switch is shown be-
low.
ON
1 2 3 4 5 6 7 8
NETWORK ADDRESS
ON
1 2 3 4 5 6 7 8
NETWORK ADDRESS
F
U
S
E
Cover
Removed
1 2 3 4 5 6 7 8
NET WORK ADDRE SS
ON
1 2 3 4 5 6 7 8
NET WORK ADDRE SS
ON
F
U
S
E
Cover
Removed
1 2 3 4 5 6 7 8
NET WORK ADDRE SS
ON
Figure15: MAC Address DIP Switch Set to 82
DIP Switch number 8 must be set to OFF at all times.
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). Only addresses from 1 to 127 are recommended to be used.
The controller must be power cycled after the MAC address DIP switch has been changed. The device instance (DevID) is automatically configured
when setting the MAC Address to prevent network address conflict. The following formula is used to determine the device instance:
DevID = 364 * 1000 + MAC
For example:
MAC: 37
DevID = 364 * 1000 + 37 = 364037
The Device Instance can be changed once the controller has been commissioned through the network management software interface.

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Setting the Communicating Sensor Subnet ID
ECB Series controllers can be commissioned with an Allure EC-Smart-Vue Series Communicating Sensor by connecting it to the controller as shown in
the wiring diagram at the end of this guide.
The default Subnet ID for an Allure EC-Smart-Vue Series Communicating Sensor is 1. To commission an ECB Series controller, the sensor’s Subnet ID
must be set to 1. If the sensor’s Subnet ID has been set to another value (for example, the display flashes error code 1 with the Bell icon when the sen-
sor is connected to a controller for commissioning), change the Subnet ID to 1 as follows:
1. Connect an Allure EC-Smart-Vue Series Communicating Sensor to the controller with a Cat 5e patch cable. Wait for the Bell icon and the number 1 to
flash on the display.
2. Press and hold the Menu button for 5 seconds to enter the password menu. 10000 is shown on the display.
OR
Screen Timeout: 15 seconds
3. Press the down button to set the number to 9995 (this is the default password).
OR
Screen Timeout: 15 seconds
4. Press the Menu button to submit the password. Upon submitting the password, the GEN CFG menu appears on the display.
OR
Screen Timeout: 30 seconds
5. Press the down button once to enter the GEN CFG submenu.
6. Press the Menu button several times until SUBNET ID appears on the display. The current controller’s Subnet ID is shown.
OR
Screen Timeout: 30 seconds
7. Use the up and down buttons to set the controller’s Subnet ID to 1. Tip : Hold down either the up or down button to fast-advance the display
value.
8. Press the Menu button once.
9. Press and hold the Menu button for 5 seconds to exit the configuration menu.
The Allure EC-Smart-Vue Series Communicating Sensor can now be used to go from one ECB Series controller to the next for commissioning purposes.

13 / 18
Commissioning ECB-Series Controllers
When using an Allure EC-Smart-Vue Series Communicating Sensor for commissioning ECB Series controllers (the DIP switch located on the faceplate is
set to 0 (all off) and before code is downloaded to the controller EC-gfxProgram), connect the Allure EC-Smart-Vue Series Communicating Sensor to the
controller with its Subnet ID set to 1.
During commissioning, the sensor is used to set the controller’s BACnet® MAC Address and to perform application selection if needed. Applications are
pre-loaded programs that enable the ECB-VAV to control a typical VAV box.
Set the connected controller’s MAC Address as follows:
Connect an Allure EC-Smart-Vue Series Communicating Sensor to the controller with a Cat 5e patch cable. Wait for the display to show the room tem-
perature.
1. Press and hold the Menu button for 5 seconds to enter the password menu. 10000 is shown on the display.
OR
Screen Timeout: 15 seconds
2. Use the down button to set the number to 9995 (this is the default password).
OR
Screen Timeout: 15 seconds
3. Press the Menu button to submit the password. Upon submitting the password, the GEN CFG menu appears on the display.
OR
Screen Timeout: 30 seconds
4. 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.
OR
Screen Timeout: 30 seconds
5. Use the up and down buttons to set the controller’s MAC Address. Only addresses from 1 to 127 are recommended to be used.
6. Press the Menu button once to apply the value.
7. Press and hold the Menu button for 5 seconds to exit the configuration menu.
Once the controller’s network is operational, the controller can be programmed EC-gfxProgram. For each Allure EC-Smart-Vue Series Communicating
Sensor, set its Subnet ID number to the block number of its associated ComSensor block EC-gfxProgram. This is done in the sensor’s GEN CFG menu
under SUBNET ID.

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Setting the BAUD Rate
By default, the BAUD rate for the controller is set to automatically detect the current communication BAUD rate of the connected BACnet MS/TP network
(AUTO). This is the preferred setting for a controller. However, at least one controller on the BACnet MS/TP network data bus must have its BAUD rate
set. The preference is to set the building controller’s BAUD rate (if present). Otherwise, set the BAUD rate on one controller that will set the BAUD rate
for all other controllers (to act as the master for setting the BAUD rate).
When the BAUD rate is set to AUTO, the controller cannot initiate any communication until it has detected the baud
rate of the BACnet MS/TP network. If all controllers on the BACnet MS/TP network are set to AUTO, then all
controllers will not communicate.
Set the connected controller’s BAUD rate as follows:
1. Connect an Allure EC-Smart-Vue Series Communicating Sensor to the controller with a Cat 5e patch cable. Wait for the display to show the room
temperature.
2. Press and hold the Menu button for 5 seconds to enter the password menu. 10000 is shown on the display.
OR
Screen Timeout: 15 seconds
3. Use the down button to set the number to 9995 (this is the default password).
OR
Screen Timeout: 15 seconds
4. Press the Menu button to submit the password. Upon submitting the password, the GEN CFG menu appears on the display.
OR
Screen Timeout: 30 seconds
5. Press the down button once to enter the GEN CFG submenu.
6. Use the Menu button several times until BAUD RATE appears on the display. The current controller’s BAUD rate is shown.
OR
Screen Timeout: 30 seconds
7. Use the up and down buttons to set the controller’s Baud rate. The AUTO setting detects and uses the current baud rate being used by the
BACnet MS/TP network.
8. Press the Menu button once to apply the value.
9. Press and hold the Menu button for 5 seconds to exit the configuration menu.

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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.
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16: 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.
Uncover the controller to locate the wireless port on the PCB board (marked as Wireless Module ).
Terminal Block Cover
In certain jurisdictions, terminal block covers are required to meet local safety regulations. Terminal block covers are available for all controllers and are
used to conceal the controllers’ wire terminals. Terminal block covers are optional and are sold as peripherals.
The terminal block cover can be clipped on to the controller as shown below.
Figure17: Terminal Block Covers

16 / 18
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.
£Retighten terminal connector screws annually to ensure the wires remain securely attached.
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.

17 / 18
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 a BACnet MS/TP 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).
Max Master parameter Configure the maximum number of master device on the MS/TP network in all devices to the controller’s highest MAC
address used on the MS/TP trunk.
There is another controller with the same MAC
Address on the BACnet MS/TP data bus
Each controller on a BACnet MS/TP data bus must have a unique MAC Address. Look at the MAC Address DIP switch on
the faceplate or under the cover of the controller. If it is set to 0 (all off), use an Allure EC-Smart-Vue sensor to check the
MAC Address.
There is another controller with the same Device
ID on the BACnet intranetwork
Each controller on a BACnet intranetwork (the entire BACnet BAS network) must have a unique Device ID. Use an Allure
EC-Smart-Vue sensor to check the Device ID of each controller.
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 Network Guide , or for the ECB-VAV UUKL
controller, refer to the Distech Controls UUKL Smoke Control System Design Guide .
Wire type Check that the wire type agrees with the specification of the Network Guide , or for the ECB-VAV UUKL controller, refer to
the Distech Controls UUKL Smoke Control System Design Guide .
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.
Number of controllers on network segment
exceeded
The number of controllers on a channel should never exceed 50. Use a router or a repeater in accordance to the Network
Guide , or for the ECB-VAV UUKL controller, refer to the Distech Controls UUKL Smoke Control System Design Guide .
Max Master parameter Configure the maximum number of master device on the MS/TP network in all devices to the controller’s highest MAC
address used on the MS/TP trunk.
There is another controller with the same MAC
Address on the BACnet MS/TP data bus
Each controller on a BACnet MS/TP data bus must have a unique MAC Address. Look at the MAC Address DIP switch on
the faceplate or under the cover of the controller. If it is set to 0 (all off), use an Allure EC-Smart-Vue sensor to check the
MAC Address.
There is another controller with the same Device
ID on the BACnet intranetwork
Each controller on a BACnet intranetwork (the entire BACnet BAS network) must have a unique Device ID. Use an Allure
EC-Smart-Vue Series Communicating Sensor to check the Device ID of each controller.
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.
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. Check the jumper settings for the external power supply as shown in Table 3.
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).

18 / 18 ECB-VAV UUKL_IG_10_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.
Flow sensor is not giving proper readings
Tubing connection problem 1. Ensure the tubing is installed properly and that the tubing is not bent.
2. Verify that the high and low pressure sensors are not inversed.
Controller is not calibrated properly Recalibrate the controller. Refer to the controller’s user guide for more information.
Damper is not opening or closing properly
Mechanical stops not in 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°.
Controller in Override Set the Override to OFF in the wizard.
Rx/Tx LEDs
RX LED not blinking Data is not being received from the BACnet MS/TP data bus.
TX LED not blinking Data is not being transmitted onto the BACnet MS/TP 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 Long Long blink
(800ms On, 300ms Off, 800ms On, 300ms Off,
800ms On)
The device has not received a BACnet token, and therefore cannot communicate on the network: Verify that the controller’s
MAC Address is unique on the BACnet MS/TP Data Bus – see Device Addressing. Make sure the controller’s BAUD rate is
the same as the BACnet MS/TP Data Bus’ BAUD rate (see Setting the BAUD Rate (optional)). Verify that the Max Master is
set high enough to include this controller’s MAC Address (See the Network Guide).
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.
Short Long blink
(150ms On, 300ms Off)
Invalid MAC address: The device’s MAC address is set to zero (0) or is set to an address higher than the Max Master. See
the Network Guide, or for the ECB-VAV UUKL controller, refer to the Distech Controls UUKL Smoke Control System Design
Guide.
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., 2015-2019. 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