19
Installation
D.18 Solar + solid fuel boiler
Low voltage max. 12VAC/DC connection
in the left-hand terminal compartment!
Terminal: Connection for:
S1 (2x) Sensor 1 collector
S2 (2x) Sensor 2 storage tank
S3 (2x) Sensor 3 solid fuel boiler
The polarity of the sensors is freely se-
lectable.
Mains voltages 230VAC 50-60Hz Con-
nection in the right-hand terminal com-
partment!
Terminal: Connection for:
L Mains phase conductor L
N Mains neutral conductor N
R1 Pump L (speed)
N Pump N (speed)
R2 Pump solid fuel L
N Pump solid fuel N
The PE protective conductor must be
connected to the PE metal terminal block!
Sensor side
max. 12V
Caution
Mains side
230VAC
Danger
Caution
Caution
Relay R1: For speed control of
standard pumps, minimum load
20VA
Relay R1: For speed control of
standard pumps, minimum load
20VA
Low voltage max. 12VAC/DC connection
in the left-hand terminal compartment!
Terminal: Connection for:
S1 (2x) Fühler 1 solid fuel boiler
S2 (2x) Fühler 2 storage tank
S3 (2x) Fühler 3 (optional)
The polarity of the sensors is freely se-
lectable.
Mains voltages 230VAC 50-60Hz Con-
nection in the right-hand terminal com-
partment!
Terminal: Connection for:
L Mains phase conductor L
N Mains neutral conductor N
R1 Pump L (speed)
N Pump N (speed)
R2 -
N -
The PE protective conductor must be
connected to the PE metal terminal block!
D.17 Solid fuel boiler
Sensor side
max. 12V
Caution
Mains side
230VAC
Danger