18 / 20
Typical Air Handling Unit Application Wiring Diagram
Cool
Heat
R
e
tu
rn
A
ir
T
e
m
p
e
ra
tu
re
1
0
k
Ω
t
y
p
e
I
I
S
u
p
p
ly
A
ir
T
e
m
p
e
ra
tu
re
1
0
k
Ω
t
y
p
e
I
I
M
ix
e
d
A
ir
T
e
m
p
e
ra
tu
re
1
0
k
Ω
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
l
c
o
n
ta
c
t
R
e
tu
rn
F
a
n
S
ta
te
D
ig
it
a
l
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
Fuse: 4A Max.
Fast Acting
Electrical
System
Ground
Data Bus Shields: Twist together
and Isolate with electrical tape
F
ro
m
P
re
v
io
u
s
D
e
v
ic
e
T
o
N
e
x
t
D
e
v
ic
e
B
A
C
n
e
t
M
S
/T
P
N
e
tw
o
rk
ECB-400
*
* 249 ohm
r
esistor built-in for inputs configured as 0-20mA
Allure EC-Smart-Vue
EOL Enabled at
the last sensor
at the end of
the Bus
ON
E
O
L
OFF
Back of an Allure
EC-Smart-Vue
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.
