Mounting Of Control Panels And Sensors; Control Panel Mounting, Detaching And Wiring; Several Control Panel Addresses; Mounting And Wiring Of Co Sensor - Helios KWL 500 W ET Notice De Montage Et D'utilisation

Surface mounting of a
control panel
A control panel is mounted
on the wall or on a 1-part
instument box.
Panel adress
1
CO sensors
2
• sensors are connected
CO
2
individually.
• When the first sensors
CO
2
has been connected to the
system, the unit is
switched on. After this, the
unit gives the sensor an
address. Follow the same
steps for other sensors.
CO
2
Humidity sensors
• When mounting two or more humidity sensors,
connect them to the terminal block of the
connection box by connecting the first humidity
sensor to %RF1, in place of the resistor 6K8 in
the terminal block (remove the resistor in this
case), and the second
humidity sensor to %RF2.
See the electrical diagram.

MOUNTING OF CONTROL PANELS AND SENSORS

Control panel mounting, detaching and wiring

The control panel is wired (2 m cable lenght) directly from the KWL EC/ET 500 Pro connection
box. The control panel can also be wired serially with a CO
Width 90 mm
Height 110 mm
Depth 23 mm

Several control panel addresses

If two or more control panels are connected to the system, the addresses of the control
panels have to be changed. (See Page 14, Section 1.3.12)
For example 3 control panels.
• Connect the first control panel to the unit and change its address to 3.
• Connect the second control panel to the unit and change its address to 2.
• Connect the third control panel and check to see if its address is 1.
If control panels have the same address, they go to bus fault state. In this case, remove one of the control panels
and change the address of the other panel. The above mentioned situation can arise in connection with the later
installation of an additional control panel.
Surface mounting
Mounting and wiring
of CO sensor
2
The CO sensor can be con-
2
nected to KWL EC/ET 500
Pro directly from the
connection box or in series
with another CO sensor or
2
control panel (see external
electrical con-nections, on
page 17).
Mounting and wiring of
humidity sensor
The cables to sensors are laid
directly from the connection box
of KWL EC/ET 500 Pro.
sensor or another control panel.
2
Wiring
1 2 3 4 5
+ – A B M
Cable:
JY(ST)Y 2 x 2 x 0,6 mm
Attention:
Faulty coupling ot the (+) wire damage
the control panal!
1 = orange 1
2 = white 1
3 = orange 2
4 = white 2
5 = metal
Control panel electronics board
Electronic board with wiring
1 2 3
+ – A
38
76
CO sensor bottom panel
CO sensor electronic board
2
2
Wiring
Surface mounting
% RF sensor
electronics board
38
76
Cable: 2 x 0,5 mm
8
2 2
+ 0,5 mm
}
= +
= –
= A
= B
= signal ground
4 5
B M
Cable:
JY(ST)Y 2 x 2 x 0,6 mm 2 + 0,5 mm 2
NOTE!
Faulty coupling ot the (+) wire
damage the CO sensor!
2
}
1 = orange 1 = +
n. 21 VDC
2 = white 1 = –
3 = orange 2 = A
4 = white 2 = B
5 = metal = signal ground
S +
2