VDI 2047 Blatt 2-2015
Open recooler systems - Securing hygienically sound operation of evaporative cooling systems (VDI Cooling Tower Code of Practice)

Standard No.

VDI 2047 Blatt 2-2015

Release Date

2015

Published By

Association of German Mechanical Engineers

Status

Be replaced 2018-12

Replace By

VDI 2047 BLATT 2-2017

Latest

VDI 2047 BLATT 2-2019

Replace

VDI 2047 Blatt 2-2014

Scope

Recooling systems can become sources of airborne pathogens. The owner/operator is obligated to minimise the risk ensuing from such installations. This standard provides guidance for hygienically sound operation of recooling systems. The standard applies to existing and new evaporative cooling installations and apparatus where water is trickled or sprayed or can in any other way come into contact with the atmosphere with the exception of natural-draugth cooling towers with power dissipations of more than 200 MW. Whether the cooling water is itself the cooling medium in the process or takes over the heat via a heat exchanger from a primary cooling circuit is

VDI 2047 Blatt 2-2015 Referenced Document

• DIN 38408-3:2011 German standard methods for the examination of water, waste water and sludge - Gaseous components (group G) - Part 3: Determination of ozone (G 3)
• DIN 38408-5:1990 German standard methods for the examination of water, waste water and sludge; gaseous components (group G); determination of chlorine dioxide (G 5)
• DIN EN 12502-1:2005 Protection of metallic materials against corrosion - Guidance on the assessment of corrosion likelihood in water distribution and storage systems - Part 1: General; German version EN 12502-1:2004
• DIN EN 12502-2:2005 Protection of metallic against corrosion - Guidance on the assessment of corrosion likelihood in water distribution and storage systems - Part 2: Influencing factors for copper and copper alloys; German version EN 12502-2:2004
• DIN EN 12502-3:2005 Protection of metallic materials against corrosion - Guidance on the assessment of corrosion likelihood in water distribution and storage systems - Part 3: Influencing factors for hot dip galvanised ferrous materials; German version EN 12502-3:2004
• DIN EN 12502-4:2005 Protection of metallic materials against corrosion - Guidance on the assessment of corrosion likelihood in water distribution and storage systems - Part 4: Influencing factors for stainless steels; German version EN 12502-4:2004
• DIN EN 12502-5:2005 Protection of metallic materials against corrosion - Guidance on the assessment of corrosion likelihood in water distribution and storage systems - Part 5: Influencing factors for cast iron, unalloyed and low alloyed steels; German version EN 12502-5:2004
• DIN EN 13098:2001 Workplace atmospheres - Guidelines for measurement of airborne microorganisms and endotoxin; German version EN 13098:2000
• DIN EN 13623:2010 Chemical disinfectants and antiseptics - Quantitative suspension test for the evaluation of bactericidal activity against Legionella of chemical disinfectants for aqueous systems - Test method and requirements (phase 2, step 1); German version EN 13623:20
• DIN EN ISO 11731-2:2008 Water quality - Detection and enumeration of Legionella - Part 2: Direct membrane filtration method for waters with low bacterial counts (ISO 11731-2:2004); German version EN ISO 11731-2:2008
• DIN EN ISO 6222:1999 Water quality - Enumeration of culturable micro-organisms - Colony count by inoculation in a nutrient agar culture medium (ISO 6222:1999); German version EN ISO 6222:1999
• DIN EN ISO 8199:2008 Water quality - General guidance on the enumeration of micro-organisms by culture (ISO 8199:2005); English version of DIN EN ISO 8199:2008-01
• DIN EN ISO 846:1997 Plastics - Evaluation of the action of microorganisms (ISO 846:1997); German version EN ISO 846:1997

VDI 2047 Blatt 2-2015 history

• 2019 VDI 2047 BLATT 2-2019 Open recooler systems - Securing hygienically sound operation of evaporative cooling systems (VDI Cooling Tower Code of Practice)
• 2017 VDI 2047 BLATT 2-2017 Rueckkuehlwerke - Sicherstellung des hygienegerechten Betriebs von Verdunstungskuehlanlagen (VDI-Kuehlturmregeln)
• 2015 VDI 2047 Blatt 2-2015 Open recooler systems - Securing hygienically sound operation of evaporative cooling systems (VDI Cooling Tower Code of Practice)
• 2014 VDI 2047 Blatt 2-2014 Rueckkuehlwerke - Sicherstellung des hygienegerechten Betriebs von Verdunstungskuehlanlagen (VDI-Kuehlturmregeln)