GB-5
D
GB
NL
RUS
PL
F
E
UA
CN
Connecting multiple heaters to a room
thermostat or an environmental control
computer
5
Connect a room thermostat for 230 V AC.
▷
1. Power supply via the heater.
GP 2
X2
GP 2
–
+T
X8
+V
L N
X1 Gas
N LT LV
X4
GP 2
X2
L N
X1 Gas
N LT LV
X4
GP 2
X2
L N
X1 Gas
N LT LV
X4
GP 1
GP 1
GP 1
GP 1
230 V AC
230 V AC
+V –
+T
X8
mV
10-24 V AC/DC
X2
230 V AC
L
N
L N
X1 Gas
N LT LV
X4
X2
L N
X1 Gas
N LT LV
X4
X2
L N
X1 Gas
N LT LV
X4
▷
Only one bridge may be connected in a single
heater between connectors X1 and X4. “N” may
be connected to all successive heaters between
connectors X4 only.
GP 2
X2
GP 2
–
+T
X8
+V
L N
X1 Gas
N LT LV
X4
GP 2
X2
L N
X1 Gas
N LT LV
X4
GP 2
X2
L N
X1 Gas
N LT LV
X4
GP 1
GP 1
GP 1
GP 1
230 V AC
230 V AC
+V –
+T
X8
mV
10-24 V AC/DC
X2
230 V AC
L
N
L N
X1 Gas
N LT LV
X4
X2
L N
X1 Gas
N LT LV
X4
X2
L N
X1 Gas
N LT LV
X4
▷
2. Power supply via the environmental control
computer.
GP 2
X2
GP 2
–
+T
X8
+V
L N
X1 Gas
N LT LV
X4
GP 2
X2
L N
X1 Gas
N LT LV
X4
GP 2
X2
L N
X1 Gas
N LT LV
X4
GP 1
GP 1
GP 1
GP 1
230 V AC
230 V AC
+V –
+T
X8
mV
10-24 V AC/DC
X2
230 V AC
L
N
L N
X1 Gas
N LT LV
X4
X2
L N
X1 Gas
N LT LV
X4
X2
L N
X1 Gas
N LT LV
X4
5
Connect a room thermostat for 24 V DC/AC to
connector X8.
▷
The 24 V power supply must be from an external
source.
GP 2
X2
GP 2
–
+T
X8
+V
L N
X1 Gas
N LT LV
X4
GP 2
X2
L N
X1 Gas
N LT LV
X4
GP 2
X2
L N
X1 Gas
N LT LV
X4
GP 1
GP 1
GP 1
GP 1
230 V AC
230 V AC
+V –
+T
X8
mV
10-24 V AC/DC
X2
230 V AC
L
N
L N
X1 Gas
N LT LV
X4
X2
L N
X1 Gas
N LT LV
X4
X2
L N
X1 Gas
N LT LV
X4
Remote reset
L
N
Reset
MFA 1
MFA 2
max. 5 A
max. 264 V
max. 2 A
max. 264 V
N
LT LV
X4
1
2
X6
X5
L
i
1
2
X7
▷
An external remote reset may be connected to
connector X5.
Multi-functional outputs (MFA)
Reset
MFA 1
MFA 2
max. 5 A
max. 264 V
max. 2 A
max. 264 V
AC/DC
10-24 V
LV
+V
–
+
X8
1
2
X6
X5
L
i
1
2
X7
0 V
▷
Floating multi-functional outputs can be param-
eterized using connectors X6 and X7. There are
two methods of completing this parameteriza-
tion:
The PC software for burner control units BCSoft
can be used via the optical interface on the burn-
er control unit, see page 20 (Accessories).
The “Setting mode” menu can be opened us-
ing the MODE selection button (heater OFF)
and used for parameterizing the outputs, see
page 8 (Setting mode).
▷
MFA , external fan
(max. 5 A)
For improved air circulation in the room, an addi-
tional fan can be connected. The external fan can
be actuated with an adjustable delay (BCSoft) for
switching it on and off. The exact time relates to
the operation of the integrated fan.
▷
Possible parameterization options:
– Inactive: the external fan is not actuated.
– Integrated fan active: the external fan is actuated
at the same time as the integrated fan.
– Integrated fan inactive: the external fan is ac-
tuated when the integrated fan of the heater
switches off.
– Modulation enable: the external fan is not actu-
ated until the heater starts modulating operation.
