Solarbayer wood log boiler set BioX 20 - 3B type B (1x SLS-1500-S)

Solarbayer wood log boiler BioX 20 for
split logs with large fuel chamber for
long burning periods. Energy-saving
combustion with the aid of a double
cyclone combustion chamber made of high
temperature silicon carbide (SiC),
as well as an optimized wood log boiler
technology with high efficiency factor.
Speed controlled induced draft fan for
best possible smoke suction even during
heating-up and stoking the wood.
Central control unit with graphic
display for the control of the boiler
charging unit temperature and the
management of the buffer tank.
Heating and refill possible without
operation of the control system, due
to the intelligent door contact sensor.
Optimisation of the combustion with the
aid of a servomotor for the permanent
control of primary and secondary air
and a lambda sensor. Comfortable
heating up due to the separate heating
door. Little heat loss due to all-over
efficient insulation. Little cleaning effort
because of half-automatic cleaning of
the heat exchanger (optional available
with fully automatic cleaning). Robust
front door and stainless-steel plates
available as optional accessories.

Technical specifications:
nominal output: 19,4 kW
efficiency: 90,6 %
energy efficiency class: A+
energy efficiency index EEI: 115
annual space-heating efficiency: 78 %
boiler class according to DIN EN 303-5+A1: 5
width/height/depth: 610 x 1365 x 1255 mm
boiler weight: 461 kg
boiler water capacity: 77 l
max. operating temp.: 90 C
max. operating pressure: 3 bar
filling volume: 125 l
filling opening (W/H): 400 mm x 260 mm
max. log length: 550 mm
burning time with hardwood: approx. 5 hrs.
flue gas connection: 150 mm (rotatable 0-135°)
exhaust gas temperature: 225 °C
necessary feed pressure: 10-15 Pa
flow/return connection: 1" IG
electrical connection: 230V/50Hz/10A
recommended buffer volume: 2000 L

Only suitable for natural, split logs with a
residual moisture of approx. 16%.

ready-to-assemble compact boiler
charging unit for all boiler
sizes up to 50 kW nominal output
electronically controlled (motor
regulated by boiler for mixing temp.)

circulation pump:
WITA 25-40/60

technical datas:
connection: 1 1/4"AG
Max. pressure: 6 bar
Max. temperature: 95 Gr.C
mixer motor
in insulation box
incl. two ball valves
with thermometer

Finished piping set, suitable for the
Solarbayer boiler charging unit Laddomix.

Thermal run-off protection with test
device for overheating protection
of boilers.

length of capillary tube: 1300 mm
min. operating temperature: - 10 C
max. operating temperature: 110 C
temp. reponse point: 97 C +/- 2 C
operating overpressure: 10 Bar
max. performance: 6,5 m3/h

Stratification buffer tank SLS-S 1500
with patented thermohydraulic
stratification control system (SLS). The
SLS system in the flow and return line
enable ideal heat stratification during
loading and unloading with instant heat
availability. For higher efficiency with
different heat sources and consumers.
Integrated large heat exchanger for
improved efficiency of the solar thermal
systems. Numerous connections for
sensors, thermometers and an immersion
heater. Fire protection fleece
insulation ISO-B1 made from recycled
fibres (Oeko-Tex® Standard 100) incl.
floor insulation for low heat loss.
Robust PVC jacket with stainless steel
quick-lock system for easy installation.

Technical data:
nominal volume: 1499 litres
material: steel S235JR
corrosion protection outside: priming
height with insulation: 2220 mm
height without insulation: 2145 mm
tilted height: 2250 mm
diameter without insulation: 1000 mm
diameter with insulation: 1200 mm
weight: 221 kg
max. operating pressure: 6 bar
max. operating temperature: 95 °C

Heat exchangers (heating/solar):
surface: 4.5 m²
capacity: 27.6 litres
max. operating pressure: 10 bar
max. operating temperature: 110 °C

Connections:
heating: 4x DN40 (1 1/2")
immersion heater*: 1x DN40 (1 1/2")
*max. installation length: 1050 mm
air vent: 1x DN40 (1 1/2")
sensor (top): 1x DN15 (1/2")
sensor: 4x DN15 (1/2")
heat exchanger: 2x DN25 (1")
connections aligned in 90 degrees

Thermal insulation:
material: fibre mat
lambda λ: 0.0368 W/(mK)
thickness uncompressed: 100 mm +/- 10%
protective sheath: PVC foil silver
fire protection class according to
DIN 4102 for the complete insulation: B1
Standby energy consumption according to
DIN EN 12897:2020-05: 3.63 kWh/24h
standing heat loss: 151 W
energy efficiency class: C

Solarbayer membrane expansion vessel
for closed heating systems
manufactured according to UNI EN9001, DIN tested,
Certification according to
pressure equipment directive 97/23/EC

operating temperature: -10 C / +100 C
max. operating pressure: 8 bar
pre-pressure: 1,5 bar
connection: 1" external thread (on top)
with pedestal
diameter: 550 mm
height: 795 mm

with sealable shut off device,
connection and draining
for expansion vessels according to DIN 4751,
for replacing the expansion vessel
without draining the heating system

Solarbayer membrane expansion vessel
for closed heating systems
manufactured according to UNI EN9001, DIN tested,
Certification according to
pressure equipment directive 97/23/EC

operating temperature: -10 C / +100 C
max. operating pressure: 8 bar
pre-pressure: 1,5 bar
connection: 3/4" external thread (on top)
with pedestal
diameter: 365 mm
height: 564 mm

with lead sealable shutoff device,
connection and draining
for expansion vessels according to DIN 4751,
for exchanging the expansion vessel with
draining the heating system

The boiler safety unit KS25
for boiler sizes up to 50 kW
is used for displaying
the pressure, de-airing and for the
safeguarding of closed hot water systems

connection: DN 25 (1" internal thread)
manometer display range: 0-4 bar
automatic air vent
safety valve: 3 bar
incl. insulation box

Absorption air separator
Absorption air separator for closed hot
and cold water systems up to a
maximum temperature of 120 °C
and an overpressure of 10 bar
variable mounting is possible
horizontal and vertical

dimension incl. insulation:
mounting length 106mm
height incl. insulation 233mm
depht incl. insulation 189mm

material: brass and high grade plastics
installation length 106mm
high 240mm
installation: vertical / horizontal (rotatable)
incl. magnetic element
min./max. temperature.: -10 °C / 120 °C.
max. pressure 10 bar
unique flow velocities up to 3 m/s.
20mm EPP insulation 0,036 W/mK