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Technical data
Application range
● Domestic hot water preparation operating on the principle of a flow-type
water heater
The CE-conformity of the module has been certified according to
DIN EN 60335 and SVGW.
Application range
● in solar thermal systems
● in systems with a heat pump, a solid fuel boiler, oil or gas boiler
● connection to a buffer tank
● as a quadruple cascade up to 492 l/min (as per SPF LK 1)*
Equipment
Check valves
Heat exchanger
Sensors
Controller
Circulation line
Materials
Valves and fittings
Gaskets
Insulation
Heat exchanger
primary: 2 x 450 mm wc
2x 60 plates, copper solder/coated
primary: 1 x Pt1000 /
secondary: 2 x Pt1000 /
2 x flow meter
FC3.10
optional
Brass
EPDM / AFM34
EPP
Solder: copper;
Plates + connecting pieces:
stainless steel;
coating (optional): based on silica
Dimensions
Nominal diameter
Connections
Width
Centre distance prim.
Centre distance sec.
Height
Installation length
Depth
DN 32 (1
1⁄4")
primary: 11⁄2" int. thread
secondary: 11⁄2“ ext. thread
710 mm
158 mm
158 mm
1 423 mm
1 205 mm
920 mm
224
01/2024 • Printed in Germany
PAW GmbH & Co. KG • info@paw.eu • www.paw.eu
Operating data
Max. operating pressure
Operating temperature
Min. flow rate as per SPF LK 1*
Max. flow rate as per SPF LK 1* as per SPF LK1*
Transmission performance as per SPF LK1*
Kvs value
primary: 3 bar
secondary: 10 bar
95 °C
4 l/min
123 l/min
300 kW
primary: 11,8
secondary: 10
*For information on design data, see "Product range Friwa" ; You will find the
equipment at the end for the product family "Domestic hot water technology".