PREVENTIVE MAINTENANCE OF AIR HANDLING SYSTEMS AND AIR EXHAUST SYSTEMS

1.0 PURPOSE:    
    To  describe  a  standard operating  procedure  for  preventive  maintenance of an air handling systems and air exhaust systems.    
2.0    SCOPE:    
    The standard operating procedure describes in detail the method   to  be  followed in preventive maintenance  of  air  handling  systems  and air exhaust systems.     
3.0    RESPONSIBILITY:    
    The responsibility of carrying out the preventive maintenance of an air handling systems and air exhaust systems  lies with the  staff  of rank not lower than the junior utility operator.         
The  responsibility of preparing, reviewing  and approving  the   standard  operating  procedure lies with the  Manager  -  Maintenance,  Head of Production and Head of QAD respectively.    
4.0    METHOD:
    4.1        Lubricate all lubricating points.     
4.2        Observe the bearings condition of all motors and blowers. Replace the bearing if necessary.     
4.3        Check the blowers fan condition.  If dust accumulates on blower  fan,  dislodge it with jet of air.   
4.4    Check all the electrical connections. Tighten them if necessary.    
4.5        Check the compressors system. Fill  gas if necessary.    
4.6        Clean all the filters if necessary.
    4.7        Check for any sound, vibration and heating up of the bearings. If any abnormalities found with the system rectify them.    
4.8        Check for any leaks from the AHU doors. If any leaks found fill the gaps with RTV compound.    
4.9        Check the condition of megnahelix gauges. If any of the gauges found out of order replace the gauge with new one    
4.10       Check all the filters grills and exhaust grills. If any of the grill found damaged replace the grill.    
4.11    Check the room pressures. If any of the room pressure found beyond the specification, adjust the exhaust dampers of the room to maintain the room pressures.    
4.12    Frequency: Preventive  maintenance  of  air  handling  system  should be carried out once in 3 months or whenever necessary.   

5.0        RECORDING:    
    The  responsibility of recording the preventive maintenance  in  the  compliance  report lies with the staff of rank  not  lower  than the maintenance engineer.
    

Air exhaust systems, engineering, air handling systems