Neptronic SKVF 15 Series, Инструкция по установке и руководство пользователя

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SKVF Evaporative Cooler
Installation Instructions and User Manual
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Disinfection
Use personal protective equipment that provide proper protection against the disinfection
solution and the inhalation of the Legionella bacteria.
Before commencing disinfection, perform the following functions:
•
Assess the situation for any security risk with the person responsible for health and safety of the building.
•
Check records, namely, sample results of microbiological testing of water.
•
If possible, carry out disinfection when the building is unoccupied.
All surfaces that require disinfection or cleaning must be in contact with the same concentration of disinfection solution for
same amount of time. All surfaces must be clear of any sort of residue to ensure that the disinfectant neutralises any
harmful bacteria. In order to ensure that the residue is properly removed, manually clean all surfaces. Ensure that the
disinfection solution reaches all the ends of lines of the pipe-work. It may also be necessary to disinfect the supply water
system pipe-work or water treatment systems. Neptronic recommends routine disinfection of the evaporative cooler in the
following situations:
•
At initial commissioning.
•
Depending on the results of the microbiological water testing and monitoring plan and sampling adopted (see
Table 11 on page 46).
•
If the system or part of it has been shutdown and/or substantially altered, creating a risk of contamination.
•
During or following an outbreak, or suspected outbreak of Legionellosis.
When disinfecting the SKVF evaporative media, ensure that it is fully rinsed and then fully dried for a period of 2 hours,
before it is reinstalled in the media cassette and returned to normal operation in the evaporative cooler.
Recommended Disinfection Solution
•
Quaternary amines such as:
o
Octyl Decyl Dimethyl Ammonium Chloride
o
Alkyl Dimethyl Benzyl Ammonium Chloride
o
n-Alkyl Dimethyl Ethyl Benzyl Ammonium Chloride
The concentration of quaternary amines must be maintained between 30 to 50 PPM, in order to be effective without
damaging the system.
•
Oxidizing biocides such as:
o
Sodium Hypochlorite (household bleach)
o
Solid Calcium Hypochlorite
o
Dimethyl Hydantoin
o
Ethyl Methyl Hydantoin
o
Hydrogen Peroxide
o
Potassium Peroxymonosulfate
The concentration of oxidizing biocides must be maintained between 1 and 2 ppm only for disinfection. Products
containing hypochlorite should only be used if the system water has a pH level of 7.5 or less.