Franke medi-Flo HWSS2321W Mode D'emploi page 12

EN
The residual ozone (O
the water conductivity (TDS) and water composition. In other words, residual ozone is a function
of the water composition (such as hardness, alkalinity, PH, iron, manganese, colour, odour,
bacteria, etc.) and the flow rate (or length of time the generator is running with no flow rate during
the lather time or during trap purge disinfection cycle). The mix of produced ozone and other
mixed radicals is also dependent on local water conditions.
We recommend the DPD test to measure ozone generator output as it also takes into
consideration the additional mixed oxidant potential. Tests such as ORP and Indigo may not give
valid readings due to hydrogen interference, temperature, water composition and PH. Subtract the
reading obtained from straight tap water to remove any reading from chlorine.
Typical output at flow (5 litres/minute of water) is approximately as follows:
@ 200 TDS = 0.1 ppm
@ 400 TDS = 0.25 ppm
@ 900 TDS = 0.35 ppm
During a hand wash cycle, when the initial signal is received to wash hands, the user typically
wets their hands and then commences lathering. While they pull away their hands to lather,
the water flow will stop but we keep the ozone generator running for 20 seconds to build up
concentration in the chamber to be available for the rinse cycle. Alternatively, after 20 seconds
of last use the water flow will automatically come on for an additional 3 seconds. The intention is
that 20 seconds after last use the sink will dispense a small amount of water for a post rinse clean
of the sink and trap to remove any remaining soap residue. At approximately 300TDS (typical
municipal water supply) observed ppm of this post lather water showed concentrations between
0.2 and 0.3 ppm using DPD test.
Typical output after 5 minutes of run-time (no flow) to represent a trap disinfection cycle
(0.7 litres of water) is as follows:
@ 100TDS = 0.3 ppm
@ 300 TDS = 1.9 ppm
@ 500 TDS = > 2.2 ppm
Note: A residual of 0.1 ppm will kill 99.99% of microbial contamination after 1 min.
So, in summary we recommend a minimum TDS of 200 ppm for optimum performance. Water
softeners will increase TDS and are recommended; however, reverse osmosis or de-ionized water
are not compatible with Medi-flo.
WARRANTY:
If inspection the product confirms that it is defective in materials or workmanship, Franke Kindred Canada Ltd. will, at
their choosing, repair or exchange the product during the following periods:
Sink, waste fitting and shroud – 2 years
Water controls and electronics – 1 year
NOTE: In the event of a limited warranty claim, proof of purchase date will be required.
Franke Kindred Canada Limited
1000 Franke Kindred Road
Midland, ON L4R 4K9
Tel 1.855.446.5663
Fax 1.866.227.3050
Commercial Products
www.franke-commercial.com
06/17 HWSS2321W-00 | 2030030464 | V2
) & mixed oxidants produced by the system is a function of water flow rate,
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