WIRING DIAGRAM - Biomatic+
Fan 3
Burner auger
Fan 1
Ignition element
Grey
Flame sensor
Black
Red
Black (white)
White
Yellow
Black (yellow)
Black (orange)
Level
Orange
sensors
CRB (ESBUS communication)
Tank sensor (top)
Circulation pump
Tank sensor (bottom)
N
L
5P01781-A / 5P01781-B
20i
External auger
Flue gas
Boiler
Sensor
Sensor
Convection cleaning
Cut out
Thermostat
C°
1
P
LED R/G
Red
Black
Brown
J26
J105
J101
J10
J102 J103
Grey (2x)
Brown (2x)
Blue
Blue
Brown
Blue
Brown
Alarm relay
Brown
Black
Black
Red
Red
L1 L2 L3 N PE
Black
Blue
Yellow/green
Filter
Blue
Blue
Yellow/green
Black
Main fuse
A
Black
10
3
4
7
6
9
2
5
8
1
SW. on/off
Red
Red
Black
J24
J4
J23
B
Brown
4
Blue
3
White
1
Grey
5
Red
6
Black
2
J104 J25
J6
J28
J27
J5
White
Red
L
N
PE
Black
PSU
Com
Brown
Black (2x)
+12V
Com
Red
+5V
Fuse w. pump
Black
Black
ARITERM AB • ARITERM OY
Charge pump
SW. w. pump
Brown
Brown
Tap water pump
Red
Relay
Red
Contactor
Thermostat
A2
A1
Blue
C°
Black
Black
Black
Black
Black
Black
Black
Black
SW. Imm. heater
Black
Yellow/green
Oxygen sensor
A
B
10
3
4
7
6
9
2
5
8
1
Installation and operating instruction • Version 2.0 • 12.04.2017
Blue
Immersion heater
Brown
4
Blue
3
White
1
Grey
5
Red
6
Black
2
BM61011v1 140822
8/32
Need help?
Do you have a question about the Biomatic+ 20i/40 and is the answer not in the manual?