User guide

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Filling Valves and Refilling Units
http://products.ecc.emea.honeywell.com/europe
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The refilling combination serves filling and refilling of closed heating systems to DIN EN 12828:2003.
It can be connected in accordance to EN 1717 constantly with the drinking water supply. The refilling
combination combines backflow preventer, pressure reducing valve and two ball valves in one
appliance. All devices for refilling a heating installation according to conforming standards are
contained.
Standard version with 1/2" threaded connections
Accessories
Spare Parts
he softening unit of the Honeywell NK300soft facilitates the softening of heating water according to
VDI-guideleine 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 DIN EN 1717.
• Intergrated water meter simplify the determination of cartridge exchang
• 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
Refilling combination, NK300
Materials Dezincification resistant brass housing, discharge connection,
valve cartridge, valve insert and spring hood in high-grade
synthetic material, fibre-reinforced NBR diaphragm, NBR and
EPDM seals, spring steel adjustment spring, stainless steel fine
filter sieve.
Media water
Max. media temperature 65
o
C
Static pressure PN10
Pressure setpoint range 1,5 ... 4 bar
Port connection type external threads
Type
NK300-1/2A
Test kit. Electronic pressure measuring device with digital indicator, runs by a battery.
With case and accessories, ideal for inspection and maintenance of backflow
preventer type BA.
TK295
Test kit. Analogue pressure measuring device with differential pressure display. With
case and accessories, ideal for inspection and maintenance of backflow preventer
type BA.
TKA295
Double ring spanner for removal of spring hood and filter bowl.
ZR06K
Maintenance set for refilling combination NK300 for use with TK295 resp. TKA295.
WS300NK
Replacement valve set
D06FA-1/2
Blanking Plug set with 0-ring (5 pieces)
S06K-1/4
Pressure gauge, range 0-4 bar
M07M-A4
Refilling combination with softening unit , NK300soft