FriwaMaxi

up to 77 l/min (as per SPF LK1)*

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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 308 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 400 mm wc

60 plates, copper solder/coated

primary: 1 x Pt1000 /

secondary: 2 x Pt1000 /

1 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 25 (1")

primary: 2" ext. thread

secondary: 1 1⁄4“ ext. thread

602 mm

120 mm

100 mm

795 mm

769 mm

298 mm

222

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

2 l/min

77 l/min

187 kW

primary: 5,6

secondary: 5.2

*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".