T25 series: Standard Low chloride - The T25 series of Disinfectant Generators are developed to be used in many different water applications
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T25 series: Standard Low chloride The T25 series of Disinfectant Generators are developed to be used in many different water applications
Generator description The T25 is available in 2 versions- a standard and a low-chloride version. The difference between standard and low-chloride version is the quantity of remaining chloride in the NEUTHOX®. (Standard 3800 mg/L low Chloride 1700 mg/L). In applications with recirculation of the water (cooling towers, ice water, tunnel pasteurizations applications) we recommend using the low chloride version. The T25 standard is available in five capacities 40, 80, 120, 250 and 400 litres per hour. The T25 low chloride is available in three capacities 50, 100 and 250 litres per hour. The size of generator you require is dependent on the amount of water you wish to treat and the initial conditions of the water. On the next page, you will find a dosing guide to assist you in calculating your requirements. The capacity is based on 20 operation hours per day. This allows for a safety margin to account for unexpected increase in the water’s biological load and also provides enough time for the generator to perform automatic self-maintenance routines. The pH and thereby the relation between NEUTHOX® and CATHOX® can be adjusted in the PLC (please see the manual) The production split can be adjusted between 100 % NEUTHOX® pH 8, 0, 50% NEUTHOX® pH 3,4 and 50 % CATHOX® pH 11, 3. (See specifications in table on page 4) In order to commission the generator the technician needs to know the hardness of the local water supply in order to set the built in water softener to the correct regenerating cycle. (Hardness kit included in delivery) A 3 Micron filter is built in the generator to remove particles that could affect the optimal performance of the generator. If however your water supply has a high level of sediment we recommend installing an external filter between the potable water supply and the generator. High levels of Iron and Manganese can adversely affect the performance of the generator cell. The built in softening system will remove low levels of these contaminants. If the level is above 0,5 mg/L for iron and 0.1 mg/L for manganese we would recommend that a separate removal system is installed. Our partner company will be happy to advise you on this point with an additional filter. If you are using well water and it is contaminated with oxidized Iron or Manganese (the water often takes on a red/ brown colour) a separate removal system is always necessary. The generator requires a 3 phase 400 volt 50/60 Hz power supply located within 3 meters of the generator plus a potable water supply, having pressure between three and seven bar with a shut off valve terminating in a fitting within 2 meters of the generator. Please see page 3 for full specification and requirements of the generator. There should also be a suitable wastewater point or connection within 3 meters of the generator.
Dosing Levels and Methods
The amount of NEUTHOX® which should be added to a water system is dependent on the application and
the biological load within the water. The higher the biological load the greater the concentration.
Experience has shown that for the majority of applications dosing levels in the range of 1:1000(0,5 PPM ) to
1:500 ( 1,0 PPM) are sufficient.
In some cases a water sample analyzes can be very useful to determine the needed dosing level
In these cases, please send a sample of 1 litre to our address through your partner.
Dosing Guide T 25 Standard
Generator size Generator Capacity M3 water to be treated
Litre/h Litre/day 0,5 PPM 1,00 PPM 2,00 PPM 3,00 PPM
T 25 – 40 40 800 800 400 200 133
T 25 - 80 80 1600 1600 800 400 266
T 25 - 120 120 2400 2400 1200 600 400
T 25 - 250 250 5000 5000 2500 1250 833
T 25 - 400 400 8000 8000 4000 2000 1.333
Dosing Guide T 25 Low Chloride
Generator size Generator Capacity M3 water to be treated
Litre Litre/day 0,5 PPM 1,00 PPM 2,00 PPM 3,00 PPM
/h
T 25 – 50 50 1000 1000 500 250 167
T 25 – 100 100 2000 2000 1000 500 333
T 25 - 250 250 5000 5000 2500 1250 833
Technical Specifications - Standard
Generator type T 25- 40 T25-80 T 25-120 T 25-250 T 25 -400
NEUTHOX® production 100% L/h 40 80 120 250 400
Operation per day h 20
Free chlorine
(100% NEUTHOX®)
mg/L 500
NEUTHOX® production 50 % L/h 20 40 60 125 250
CATHOX® production L/h 20 40 60 125 250
Approximate salt kg/day
consumption*
6,4 12,8 19,2 40 64
Electrical connections V/Hz EU 3x 400/50-60,US 1x 120/ 60, CA 1x 220 /50
2
Cable Length 5x 1,5 mm m 3
Power consumption W 850 1350 1800 3500 5400
Enclosure IP 54
Approval CE mark Yes
Water supply with 15L/min bar > 2½
Water connection BSP ½”
Drain connection BSP ½”
Drain hose- minimum mm
diameter
½”
Drain hose- maximum length m 5
Iron
Technical Specifications - Low Chloride
Generator type T 25-50 T25-100 T25-250
NETHOX® production 100% L/h 50 100 250
Operation per day h 20
Free chlorine
mg/L 500
(100% NEUTHOX®)
NEUTHOX® production 50 % L/h 25 50 125
CATHOX® production L/h 25 50 125
Approximate salt kg/day
4,2 8,4 21
consumption*
V/Hz EU 3x 400/50-60,US 1x 120/ 60,
Electrical connections
CA 1x 220 /50
2
Cable Length 5x 1,5 mm m 3
Power consumption W 1300 2050 4850
Enclosure IP 54
Approval CE mark Yes
Water supply with 15L/min bar > 2½
Water connection BSP ½”
Drain connection BSP ½”
Drain hose- minimum mm
diameter ½”
Drain hose- maximum length m 5
Iron
Space requirements for the T25 generator
1 meter
Tank overflow Power max. 3 meters Drain hose max. 3 meters
3 meter
DCW T25 – Electrical Components
Transformer for PLC
etc..
Transmitter for
conductivity sensor
220 V for service PC
Transformer for
process
(switch mode for big
generators – core
transformer for
small)
Sensor - amperageT25 – Mechanical Components
Electrolyses cell
CATHOX® valve
3/2 valve for descaling
Figure 2-1
3/2 valve for hydrogen
Conductivity sensor
Venting outlet for acid
Hydrogen venting
Brine pump
Mixing chamber
Pressure valve (acid)
Manometer
Pressure switch
process
Flow meter
Water filter
Main control valve
Pressure reduction
Check valve
Acid (Limescale remover)
Manometer
Acid pump
(behind container)
Pressure switch – inlet
Water softenerCompany description Danish Clean Water A/S (DCW) is located on Danfoss Industrial Park in Southern Denmark. It was founded to exploit the technology of on-site production of environ mentally safe disinfection systems for bacterial control. DCW has access to the full range of Danfoss facilities at its Headquarters in Southern Denmark. These include a state of the art fully accredited laboratory plus a manufacturing facility world renowned for its quality of engineering. All DCW machines are manufactured by Danfoss Industry Services to the highest standards of engineering excellence. Danish Clean Water A/S c/o Danfoss A/S Nordborgvej 81 E 17 B206 6430 Nordborg Denmark Phone +45 70 29 09 00 Fax +45 70 29 09 01 © 2008. The written and pictorial material in this document is the property of Danish Clean Water A/S and its partners and may not be copied, disseminated or reproduced in any form without the written permission of Danish Clean Water A/S.
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