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Friwa

DHW

technology

Tank heat transfer module Midi up to 33 l/min

for charging/preheating domestic hot water tanks via large buffer tank systems with high tap performances

Withdrawal capacity: 2-33 l/min
Circulation: optional
SKU
643544
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Our offer is exclusively aimed at corporate clients.

Manufacturer:
PAW GmbH & Co. KG
Böcklerstr. 11 31789 Hameln
Germany
info@paw.eu
Operating data
Max. operating temperature: 95 °C
Max. operating pressure primary: 3 bar
Max. operating pressure secondary: 10 bar
Kvs value primary: 4,1
Kvs value secondary: 3,4
Max. flow rate: 33 l/min
Transmission performance: 92 kW
Min. flow rate: 2 l/min
Equipment
Controller: FC4.13
Check valves: primary: 2 x 190 mm wc
Shut-off valves: Ball valves and piston valves
Sensors: 3 x Pt1000 (integrated) / 3 x Pt1000 (enclosed)
Heat exchanger: B25TH, 40 plates
FlowSonic: 1-130 l/min
Dimensions
Height: 795 mm
Width: 602 mm
Nominal diameter: DN 20 (¾")
Depth: 298 mm
Installation length: 757 mm
Connection primary: 1½" ext. thread
Connection secondary: 1" ext. thread
Centre distance primary: 120 mm
Centre distance secondary: 220 mm
Length: 713 mm
Materials
Valves and fittings: Brass
Gaskets: EPDM / AFM34
Insulation: EPP
Piping: Stainless steel
Heat exchanger: Solder: copper,Plates + connecting pieces: stainless steel
Field of application:
for charging/preheating domestic hot water tanks via large buffer tank systems with high tap performances

Application range:
In solar thermal systems
In systems with solid fuel boilers, oil or gas boilers
Connection to a buffer tank
up to 33 l/min
No domestic hot water tank necessary
Energy for heating the water is taken from the buffer tank

Operating data:
Max. operating pressure: primary = 3 bars, secondary = 10 bars
Max. operating temperature: 2-95 °C
Min. flow rate: 2 l/min
Max. flow rate: 33 l/min

The CE-conformity of the module has been certified according to DIN EN 60335 and SVGW.

Safety instructions
The installation and commissioning as well as the connection of electrical components require technical knowledge commensurate with a recognised vocational qualification as a fitter for plumbing, heating and air conditioning technology, or a profession requiring a comparable level of knowledge [specialist].
The following must be observed during installation and commissioning:
- relevant local and national regulations
- accident prevention regulations of the professional association
- instructions and safety instructions mentioned in these instructions.

WARNING
Malfunction!
- The product must be integrated in the potential equalisation of the electric installation. This can be guaranteed by establishing a potential equalisation connection to the main potential connection according to regulations or by the connected pipe system.

CAUTION
Risk of burns!
Valves, fittings and pump may heat up to more than 95 °C during operation.
The insulating shell must remain closed during operation.

NOTICE
Material damage due to mineral oils!
Mineral oil products cause lasting damage to seals made of EPDM, whereby the sealant properties get lost. We do not assume liability nor provide warranty for damage to property resulting from sealants damaged in this way.
- It is imperative to avoid that the EPDM sealing elements of the unit get in contact with substances containing mineral oils.
- Use a lubricant based on silicone or polyalkylene and free from mineral oils, such as Unisilikon L250L and Syntheso Glep 1 of the Klüber company or a silicone spray.