Solarbayer solar domestic hot water tank SKL-500, twin coil DHW storage cylinder

Enamelled domestic hot water (DHW) tank
SKL 500 with two large heat exchangers
(bivalent) perfectly suited for the
application of solar systems. In
monoenergetic operation, the heat
exchangers can be connected for
increased efficiency and to increase
system efficiency, e.g. in condensing
boilers. Durable, highly resistant
two-layer enamelling with additional
magnesium protective anode. Standard
with thermometer, cleaning flange,
circulation connection and connection
for an electric heating element. Low
heat loss due to high-quality foam
insulation.

Technical data:
nominal volume: 517 litres
material: steel S235JR
corrosion protection inside: enamelled
height with insulation: 1805 mm
tilted height: 1960 mm
diameter with insulation: 750 mm
weight: 173 kg
max. operating pressure: 10 bar
max. operating temperature: 95 °C

Heat exchangers (heating/solar):
surface top: 1.4 m²
surface bottom: 2.4 m²
capacity top: 8.8 litres
capacity bottom: 15.1 litres
max. operating pressure: 10 bar
max. operating temperature: 110 °C

Connections:
heat exchanger top: 2x DN25 (1")
heat exchanger bottom: 2x DN25 (1")
DHW: 2x DN20 (3/4")
thermometer: DN15 (1/2") pre-installed
circulation: 1x DN20 (3/4")
sensors: 2x DN15 (1/2")
immersion heater*: 1x DN40 (1 1/2")
*max. length immersion heater: 650 mm
anode: 1x DN32 (1 1/4") pre-installed
flange: 170/114 mm / bolt circle 145 mm
with second anode M8 x 30, pre-assembled

Thermal insulation:
material: solid foam
lambda λ: 0.0235 W/(mK)
thickness: 50 mm +/- 10%
protective sheath: PVC foil silver
fire protection class according to
DIN 4102 for the complete insulation: B2
Standby energy consumption according to
DIN EN 12897:2020-05: 2.18 kWh/24h
standing heat loss: 91 W
energy efficiency class: C

ATTENTION:
yearly maintenance of anode,
retighten flange