Domestic hot water tank monovalent BW-1 400 enameled DHW tank, 1 heat exchanger

Enamelled hot water tank BW-1 400
for efficient and reliable domestic hot
water heating. Monovalent, indirectly
heated cylinder with a large, deep-drawn
heat exchanger. The durable two-layer
enamelling, protected by a pre-assembled
magnesium protective anode (convertible
to a powered anode), guarantees a high
level of resistance. The storage tank
has a cleaning flange, a circulation
connection, a thermometer and a sensor
connection. There is also a connection
for an electric heating rod as emergency
heating or for the use of excess PV
electricity. The PU rigid foam
insulation with 75mm reduces energy
losses and increases efficiency.

Technical data:
nominal volume: 417 litres
material: steel S235JR
corrosion protection inside: enamelled
height with insulation: 1675 mm
tilted height: 1870 mm
diameter with insulation: 755 mm
weight: 129 kg
max. operating pressure: 10 bar
max. operating temperature: 95 °C

Heat exchanger:
surface: 1.9 m²
capacity: 11.5 litres
max. operating pressure: 10 bar
max. operating temperature: 110 °C

Connections:
heat exchanger: 2x DN32 (1 1/4")
DHW: 2x DN25 (1" IG)
thermometer: DN15 (1/2") pre-installed
circulation: 1x DN20 (3/4" IG)
sensor: 1x DN15 (1/2")
immersion heater*: 1x DN40 (1 1/2")
*max. length immersion heater: 460 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: 75 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: 1.51 kWh/24h
standing heat loss: 63 W
energy efficiency class: B

ATTENTION:
yearly maintenance of anode,
retighten flange