Distech LonWorks ECL-203 Series Installation Manual Download Page 14

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Typical Air Handling Unit Application Wiring Diagram

Service PIN Button

Cool

Heat

R

e

tu

rn

 A

ir

 T

e

m

p

e

ra

tu

re

1

0

k

 t

y

p

e

 I

I

S

u

p

p

ly

 A

ir

 T

e

m

p

e

ra

tu

re

1

0

k

 t

y

p

e

 I

I

M

ix

e

d

 A

ir

 T

e

m

p

e

ra

tu

re

1

0

k

 t

y

p

e

 I

I

S

u

p

p

ly

 A

ir

 H

u

m

id

it

y

2

-w

ir

e

4

-2

0

m

A

S

u

p

p

ly

 F

a

n

 S

ta

te

D

ig

it

a

c

o

n

ta

c

t

R

e

tu

rn

 F

a

n

 S

ta

te

D

ig

it

a

c

o

n

ta

c

t

Damper

R

e

tu

rn

 A

ir

 H

u

m

id

it

y

2

-w

ir

e

4

-2

0

m

A

CT

CT

0-10 
VDC

~

+

-

0-10 
VDC

~

+

-

Humidifier

A

2

A

1

A

2

A

1

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 

F

ro

m

 P

re

v

io

u

s

 D

e

v

ic

e

T

o

 N

e

x

D

e

v

ic

e

L

O

N

W

O

R

K

S

 N

e

tw

o

rk

*

* 249 ohm

 r

esistor built-in for inputs configured as 4-20mA

ECL-600

L

ON

W

ORKS

®

OPTIONAL: Connect 

to Electrical System 

Ground

Allure EC-Smart-Vue

ON

E

O

L

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.

Summary of Contents for LonWorks ECL-203 Series

Page 1: ...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 condensa...

Page 2: ...e 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 mu...

Page 3: ...3 16 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...

Page 4: ...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...

Page 5: ...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 ord...

Page 6: ...e 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 10V...

Page 7: ...6 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 1000 Thermistor Input for examp...

Page 8: ...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...

Page 9: ...WM output controlling a 12VDC relay Maximum 60 mA minimum load resistance 200 UOx From Digital Output 12VDC Relay A1 A2 UOx COM Current 0 to 20mA universal output jumper configuration For ECL 300 ECL...

Page 10: ...e 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...

Page 11: ...o 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...

Page 12: ...sed 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 re...

Page 13: ...its 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...

Page 14: ...ormer 24VAC 4A Fuse Fast Acting EOL Enabled at the last sensor at the end of the Bus From Previous Device To Next Device L ON W ORKS Network 249 ohm resistor built in for inputs configured as 4 20mA E...

Page 15: ...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 corre...

Page 16: ...t 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 300m...

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