EC-Vent
Demand control for up to 5 external sensors, 2 fans, damp-
ers, heaters and coolers.
The EC vent system has 2 units. The control board (CB) and
the room unit (RU). Connect the fan to the control board and
remove the internal potentiometer.
EC-Vent
IN/RPM
PWM
IN/10V
OUT/PWN
GND
TACH
optional
+10V
0...10V/PWM
GND
Control Board (CB)
W -
Y +0-10V
Br + 24VDC
NC
C
NO
GND
+24VDC
E
C
B
D
A
N
L
1
(
ta
c
h
o
u
tp
u
t)
2
(
G
N
D
)
3
(
P
W
M
)
4
(
+
1
0
V
D
C
)
2
(
+
2
4
V
D
C
)
3
(
0
-1
0
V
)
1
(
G
N
D
)
+
D
C
M
A
X
2
4
V
I
m
a
x
5
0
m
A
5
(
G
N
D
)
6
(
0
-1
0
V
)
7
F
G
H
I
C
M
N
N
C
N
O
M
O
D
B
U
S
IN
T
E
R
N
A
L
G
N
D
IN
/1
0
V
O
U
T
/P
W
M
IN
/R
P
M
2
4
V
D
A
G
N
D
2
4
V
D
A
G
N
D
2
4
V
D
A
G
N
D
RU
DEBUG
USB
J
K
ALARM FAN
OUT3
OUT2
OUT1
GND
A/D
PT1000
24V
GND
A/D
PT1000
24V
GND
A/D
PT1000
24V
N out
N in
L out
L in
IN
3
IN
2
IN
2
27
Summary of Contents for KE 50-24-4
Page 35: ...33...
