Solarbayer stratification buffer tank SLS-1500-S-Plus, patented SLS-System

Stratification buffer tank SLS-S 1500
PLUS, with patented thermohydraulic
stratification control system (SLS). The
SLS system in the flow and return line
enables ideal heat stratification during
loading and unloading with immediate
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 available. Double fire protection
fleece insulation ISO-B1-PLUS with 220mm
thickness made from recycled fibres
(Oeko-Tex® Standard 100) incl. floor
insulation for low heat loss. Rugged PVC
jacket with stainless steel quick-lock
system for easy installation. In order
to penetrate the second insulation
layer, we recommend the optionally
available connection piece extensions as
well as the B1-Plus thermometer set.

Technical data:
nominal volume: 1499 litres
material: steel S235JR
corrosion protection outside: priming
height with insulation: 2340 mm
height without insulation: 2145 mm
tilted height: 2250 mm
diameter without insulation: 1000 mm
diameter with insulation: 1440 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")
sensors: 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: 220 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: 2,19 kWh/24h
standing heat loss: 91 W
energy efficiency class: B