1.0 Purpose : To provide a documented procedure for Operation of Air Compressor.
2.0 Objective : Operation of Air Compressor.
3.0 Scope : This SOP is applicable for Operation of Air Compressor.
4.0 Responsibility :
· Primary: Technician Engineering
· Secondary: Manager Engineering
5.0 Procedure :
· Before starting the compressor, check the water level of cooling tower tank, if it is low, then add more water and make it full.
· Switch ‘ON’ the “main switch” on panel of the air compressor.
· Start the cooling tower pump and fan by pushing the green button from starter.
· Remove the air bubble from the vent.
· Push the green color “Push Button” on panel to start the air compressor.
· Air compressor will start in “UNLOAD” condition and after 30 second it will start in “LOAD” condition automatically.
· During “LOAD” condition air pressure in receiver will rise, once 7 Kg/cm2 air pressure is achieved, compressor will cut off automatically and run in “UNLOAD” condition.
· Open the plant air supply valve of the receiver. Air pressure in receiver will start to reduce and when air pressure is reduced to 6 kg/cm2 the compressor will start on “LOAD” condition.
· This cycle of “LOAD” and “UNLOAD” will continue and it depends on air pressure requirement in the plant.
· If air pressure is not required in production then switches “OFF’ the air compressor as per method given below.
Ø Close the plant air supply valve of air receiver, allow to run the compressor in “UNLOAD” condition.
Ø Switch ‘OFF’ the “main switch” on panel of air compressor.
Ø Drain the pressure in receiver from drain valve and close the drain valve when air pressure becomes zero.
Ø Switch ‘OFF’ the cooling tower pump and fan by pushing the red colour push button on starter.
Ø Close the cooling water inlet valve of cooler and cylinder jacket.
Ø Drain the water in cylinder head jacket.
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