1101
Illustrations may differ from actual product
Subject to printing/proofreading errors
8
Electrical installation
Electrical connection
The electrical installation must be carried out according to
existing rules under the supervision of a qualified electrician.
The burner must be preceded by an all-pole switch, protected with a max.
10 A fuse.
The design depends on which boiler the burner is installed on, whether the
boiler has existing electrical equipment and whether the burner is to con-
trol the boiler temperature.
Connections to burner
Feed auger
Temperature
sensor
Power cable
Thermal relay, downpipe
Press the contacts
together properly.
Connector - 230 V~ power cable
The septuple-pole plug, a, is inserted in the
socket, b, located on the burner until the
catch on the pushbutton, c, engages and
locks the plug in place.
For disconnection, the power to the burner
must be switched off first. Then press the
pushbutton while pulling the plug out of the
socket.
N:
Neutral conductor.
:
Earth conductor.
L1:
Black, supply via overheating protection.
B4:
Brown, connected to the boiler thermostat.
S3:
Grey, alarm signal, 230 V~, from burner, max. load 1 A.
T1, T2: To any safety switch on the combustion chamber hatch.
Alarm
In the event of an alarm, the burner generates a 230 V~ signal. The signal
can be used for a visual/acoustic presentation.
If the function is not used,
the cable end must be insulated.
Hatch safety switch
A hatch switch must be installed if the combustion chamber hatch can be
opened without tools. Safety can also be guaranteed if the supply hose is
made so short that it has to be detached before the hatch can be opened.
The jumper, T1 - T2, in the power cable's contact part must be removed
when a hatch switch is connected.
Boiler temperature control via the burner
The boiler temperature sensor (accessory) is connected to a contact on the
burner.
The burner's temperature control has a high connection difference, 10°C,
which reduces the number of starts and extends the operating time. It is
advantageous to have the burner control the boiler temperature if hot ser-
vice water is heated in a heat exchanger.
The temperature sensor should preferably be placed in an immersion
pocket high up on the boiler. If there is no immersion pocket, the sensor
is glued to the body of the boiler with epoxy glue. The sensor must have
good thermal contact.
In an exchanger boiler, the sensor is placed so that it senses the exchang-
er's return flow, but not on the return pipe.
When the burner is to control the boiler temperature, the
phase supply and control phase must be preceded by over-
heating protection.
230V~, 50Hz
10A
L
N
PE
BLUE
BLACK
BROWN
GREY
YELLOW/GREEN
N
L1
B4
S3
T2
T1
OVERHEATING
PROTECTION
SAFETY SWITCH
BURNER SWITCH
ALARM 230V/1A
Boiler thermostat controls boiler temperature
The burner's phase supply must be preceded by overheating
protection and the control phase by a thermostat.
230V~, 50Hz
10A
L
N
PE
BLUE
BLACK
BROWN
GREY
YELLOW/GREEN
N
L1
B4
S3
T2
T1
OVERHEATING
PROTECTION
AND THERMOSTAT
SAFETY SWITCH
BURNER SWITCH
ALARM 230V/1A
Electrical connection check.
1. The power switch and thermostat must be in the position '0'.
2. Switch the power switch to 'I'; all the burner's indicators
should light up briefly. Subsequently, only 'OPERATION'
should light up.
3. Turn the thermostat so that it requires heat; the 'FLAME'
indicator should start to flash.
If this does not happen, the connection must be checked.
b
a
c
