11
© VALLOX • We reserve the right to make changes without prior notice.
What the units include can vary depending on the sales area.
Vallox
121
SE
TECHNICAL DATA
2
NOMAK 2x2x0,5+0,5
1
2
1
S
+
A
2x0.5
+
2x0.5
A
+
MAX. 1A, 24VDC
-
B
M
0-10V DC
S
+
-
B
M
0...10VDC
2x0.5
2x0.5
A
2x0.5
B
-
+
M S
+
S
+
+
1
2
S
S
GND
%RH1
%RH2
7010101
2011-09-12 pl
0-20mA
R
Mounting, removing and wiring of the control panel
The control panel is wired straight from the electrical connection box.
The control panel can also be connected in series with a CO
2
sensor
or another control panel. (See External electrical connection, page 8.)
Control panel addresses
If two or more control panels are connected to the system, the addresses
of the control panels need to be changed.
For example 3 control panels
• Connect the fi rst 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 make sure that 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.
External electrical
connection
Vallox 121 SE
(code A3560)
METAL
= M
WHITE 2
= B
ORANGE 2
= A
WHITE 1
= -
ORANGE 1
= +
2. TWISTED PAIR
1. TWISTED PAIR
NOTE!
Faulty connection of
the + wire DESTROYS
CONTROL PANEL
NOTE!
Faulty connection of the +
wire DESTROYS THE SENSOR
CONTROL PANEL 1
ONE OR MORE
1 INCLUDED AS STANDARD
CO
2
SENSOR 1
ONE OR MORE
OPTION
REMOTE MONITORING
SHORT-CIRCUIT WIRE HAS TO BE
REMOVED BEFORE CONNECTION
FIREPLACE
SWITCH
Button switch
(self-resetting contact)
(POTENTIAL-FREE CONTACTS)
THE FIRST HUMIDITY SENSOR
IS CONNECTED TO REPLACE
RESISTOR R6k8
HUMIDITY SENSOR %RH2
OPTION
HUMIDITY SENSOR %RH1
OPTION
FAULT SIGNAL
FAULT SIGNAL
RS-485 BUS
FIREPLACE SWITCH
FAN CONTROL
PLUG CONNECTION 10 A
1.2 m ON TOP OF THE UNIT
CONNECTION BOX IS SITUATED
ON TOP OF THE UNIT
CONNECTION BOX INSIDE
THE UNIT
Width 90 mm
Height 110 mm
Depth 23 mm
