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Refilling combination with softening unit , NK300S-SOFT

Refilling combination with softening unit , NK300S-SOFT

The softening unit of the Honeywell NK300S-SOFT facilitates the softening of heating water according to VDI-guideline 2035/I. Limescale and thereby...

Product Description

The softening unit of the Honeywell NK300S-SOFT facilitates the softening of heating water according to VDI-guideline 2035/I. Limescale and thereby caused damages and malfunction in hot water heating system (DIN EN 12828) are avoided efficiently.
The refilling combination fitted on the inlet and based on a BA-type backflow preventer protects the potable water supply against back flow of heating water according to EN1717.
  • Integrated water meter simplify the determination of cartridge exchange
  • Easy exchange of cartridge without tools
  • Constant connection with the drinking water supply in accor-dance with EN1717 by hose line or piping is possible
  • Optimal protection of the drinking water supply system
  • Backflow preventer approved for noise level protection, class 2
  • Pressure reducing valve approved for noise level protection, class 1
  • Pressure reducing valve with inlet pressure balancing - inlet pressure fluctuation does not influence the outlet pressure
  • Outlet pressure adjustable and directly at the pressure gauge readable

Technical Properties

Approvals DVGW (for refilling unit NK300S)
Media water
Port connection external threads
Nominal pressure PN10
Outlet pressure 1.5 ... 4 bar
Max. media temperature 30 oC
Kvs value 0.45
Materials Dezincification-resistant brass housing; discharge valve, cartridge insert, valve insert, mechanical components of the blending unit and spring bonnet made of high-quality plastic; fibre-reinforced EPDM diaphragm; seals in NBR and EPDM; spring steel adjustment spring; stainless steel fine filter mesh; polypropylene cartridge
Housing (HxWxD) 524 mm | 483 mm | - mm
Additional Descriptions Suitable for heating systems with the following materials: steel, copper, copper alloys and plastics. Treated water has modified corrosive chemical parameters. Conditioning by means of inhibitors is to be provided for separately.

Certifications and Awards

Related Material

Products

Product Type Filter mesh
Standard version with 1/2" threaded connections

NK300S-SO-1/2A
200 micron

NK300S-SO-1/2AZ
25 micron

Accessories and replacement parts

Accessories

Image Description Product Type Downloads
Maintenance set for refilling combinations for use with TK295 resp. TKA295. WS300NK  

Spare Parts

Image Description Product Type Downloads
Valve insert complete for size 1/2" D04FMA-1/2  
Blanking Plug set with 0-ring (5 pieces) for sizes 1/2" - 2" S06K-1/4  
Pressure gauge with housing diameter 50 mm, connection thread G 1/4, 0 - 10 bar M38K-A10  
Air bleed valve 2421100  
Water flow meter WZ300  
Replacement softening cartridge, Size 0.75 l P300-S  
Replacement softening cartridge, Size 3.5 l P300-L  
Check valve for size 1/2" 0904138