• OBJECTIVE                                  
  • To lay down a procedure for maintenance of Chilled Water Line
  • This SOP is applicable to Chilled Water Line.                       
  • Technical Supervisor / Engineer                   
  • Sr.Executive / Manager                                
  • Daily Maintenance
  • Give the chemical dosing of 2902 Quantity of 250ml in chilled water make up tank.
  • Put a Tick mark  in Daily Check Sheet after completion of each activity. If it is not O.K put a cross (X) in Daily Check Sheet indicating the reason in remarks column.
  • Immediately inform to the concern superior if it is not O.K (X) and take necessary corrective action as per the advice.
  • Any such deviations should be maintained in the Machine History Cord along with necessary corrective action and its compliance there of.
  • Weekly Maintenance
  • Ensure that chilled water line is free from dust.
  • Ensure no leaks from the joints of pipelines
  • Ensure the makeup water in the tank should be ¾ of the level.
  • Check and ensure the function of gauges and valves.
  • Put a Tick mark (Ö ) in Weekly Check Sheet.
  • Monthly Maintenance
  • Check the hardness of the water with hardness kit, which should be in the limit of 0 to 50 mg/ Litre.
  • Check the Total dissolved solids (Limit <1000 mg/Litre), Alkanity (Limit 200-300 mg/Litre) and iron level should be 0.1 – 0.5 mg/litre).
  • Put a Tick mark  in Monthly Check Sheet.
  • Half Yearly Maintenance
  • Check the smooth and snag operation of butterfly valve
  • Ensure no leaks form slim seal, arrest if it’s leaking.
  • Clean pot strainer and vent valves
  • Put a Tick mark  in Half Yearly Check Sheet.
  • Yearly Maintenance
  • Calibrate all pressure gauges and temperature gauges
  • Ensure chilled water colour should be whitish. If it is reddish colour, remove the total water and fill with fresh demineralised water.
  • Review the chemical dosing system after analyzing the treatment report.
  • Put a Tick mark (Ö ) in Yearly Check Sheet.
  • Forms and Records (Annexures)
  • Not Applicable
  • Distribution
  • Master copy –  Quality Assurance
  • Controlled copies- Quality Assurance, Production, Quality Control
  • History
    Date Revision Number Reason for Revision


    00 New SOP




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