Solarbayer heat pump solar DHW tank WP-S 400 litre, high performance DHW cylinder

Enamelled solar hot water cylinder
WP-S 400 specially developed for the
operation of heat pumps in combination
with solar thermal systems. This DHW
cylinder with double coiled and
parallel-connected high-performance heat
exchanger for heat pumps ensures very
efficient heat transfer, minimal
pressure losses and a high DHW output.
The lower heat exchanger is perfectly
suited for use with solar thermal
systems. In monovalent operation, the
heat exchangers can be connected for
greater efficiency and an increase in
system efficiency. Thanks to the high-
quality enamelling and the magnesium
protective anode in accordance with
DIN 4753-3, the cylinder offers
effective protection against corrosion
and impresses with its durability - even
with varying water quality. A cleaning
flange with connection for an electric
immersion heater, circulation
connection, thermometer and sensor
connections are available at. The
connection for the electric immersion
heater can be used for emergency heating
or to utilise surplus PV power. The PU
rigid foam insulation with 70 mm
minimises energy losses and maximises
efficiency.

Technical data:
Nominal volume: 446 litres
Material: steel S235JR
Internal corrosion protection: enamelled
Height with insulation: 1610 mm
Tilt dimension: 1790 mm
Diameter with insulation: 790 mm
Weight: 177 kg
Max. operating pressure: 10 bar
Max. operating temperature: 95°C

Heat exchanger (heating/solar):
Heating surface top: 4,6 m²
Heating surface bottom: 0,9 m²
Capacity top: 27,6 litres
Capacity bottom: 5,5 litres
Max. operating pressure: 10 bar
Max. operating temperature: 110°C

Connections:
DHW: 2x DN32 (1 1/4")
circulation: 1x DN25 (1")
heat exchanger top: 2x DN32 (1 1/4")
heat exchanger bottom: 2x DN32 (1 1/4")
thermometer (included): 1x DN15 (1/2")
sensors: 3x DN15 (1/2")
anode (top): 2x DN32 (1 1/4"), pre-
assembled in appropriate size + quantity
Flange with M8-anode and connection for
an immersion heater* (DN40 (1 1/2"):
170/114 mm / bolt circle 145 mm
*max. installation length: 650 mm

Thermal insulation:
Material: PU rigid foam
Lambda: 0.0235 W/mK
Insulation thickness: 70 mm +/- 10%
Protective jacket: PVC film silver
Fire protection class according to DIN 4102
for entire Insulation component: B2
Standby energy consumption according to
DIN EN 12897:2020-05: 1,58 kWh/24h
standing heat loss: 66 W
Energy efficiency class: B

Attention:
yearly maintenance of anode,
retighten cleaning flange