Chillers questionnaire

Please fill this questionnaire online. Fields marked with an asterisk are required.

1. General data

1.1 Location

1.2 Plant

1.3 Unit

1.4 Contact person

1.5 Telephone

1.6 E-mail

2. Technical data

2.1 System description (which process is cooled by the chiller, are possible leakages)

2.2 Chiller data (manufacturer, model, refrigerant, number of compressors)

2.3 Chilled water loop: volume, recirculation rate, supply and return temperatures (real/required)

2.4 Construction materials of the chilled water loop

2.5 Glycol or other additives in the chilled water (type, concentration %)

2.6 Condenser loop type

2.7 Water source and makeup water treatment (filtration, UF, RO, ion exchange, softening)

2.8 Current chemical treatment (which chemicals are used, treatment program, pH control)

2.9 Automatic dosage station (if installed)

2.10 Workload (days per year, hours per day)

2.11 Chiller approach temperature trend (if monitored)

3. KPI

3.1 Current corrosion control (coupons, sensors, absent)

3.2 Control of bioactivity and biofilm (TVC, BART, visual, coupons)

3.3 Scale and fouling control (approach temperature, inspections)

3.4 How often is the chiller shut down for maintenance or tube cleaning?

3.5 Which problems could be found (scale, fouling, biofilm, corrosion damage, reduced approach)?

3.6 How do problems with the chiller affect production of the unit?

3.7 Requirements

4. Chemical data

Chemical

5. Additional info

5.1 Add any additional information you consider useful

5.2 Attach chemical analysis historical data (for 12 months)

5.3 Attach technical parameters log (for 12 months)