To lay down the procedure for safe and efficient operation of cooled chillers.
Scope
This SOP applies to all cooled chillers in the facility.
Responsibility
The chiller operator is responsible for following this SOP.
Accountability
The facility manager is accountable for ensuring that this SOP is followed.
ProcedureÂ
Check points before start up
Operation of DG Set- Ensure that chilled water service tank have sufficient quantities of water.
- Ensure that the Inlet & outlet valves are opened.
- Ensure that all electrical connections are in proper condition and no safeties are short circuited.
- Do not wear loose clothes; always wear PPE’s (Hand gloves, Safety Shoes, Ear muffs & Helmet).
Start up:
Stopping the Chiller
- Chiller should never be worked with hard water.
- Be alert about any unusual & excessive sound from any part of the chiller.
- All the valves & joints should be leak proof.
- Check for outlet proper flow of water.
- Compressor must not be heat so much.
- Exhaust fan must run in anticlockwise direction.
- Do not remove any guards from the moving parts.
- Do not wear loose clothes.
- Keep adequate distance from moving parts.
- The chiller should start & stop smoothly without Excessive vibrations.Â
- Do not touch Machine Hot part without adequate precautions
- Water spillage must not be there, if it happens, immediately clean the area.
1.    Â
Open the valves of water supply line.
2.   Â
Put ‘on’ the electric main switch.
3.   Â
Switch On the control switch on Chiller panel
4.   Â
Check for the fan rotation, it must be in
anticlockwise direction.
5.   Â
Switch on the compressor button.
6.   Â
Set the desired temperature by increase or
decrease button.
7.   Â
‘Green’ healthy on lamp comes ‘on’, & trip
compressor lamp must be ‘off’ for smooth running of chiller.
NOTE: 1. The
temperature of chiller should not be set lower then 8 OC.
  2. compressor pressure must in
between 50 – 70 kgF-/cm2
1. Firstly, Switch ‘OFF’ the compressor button.
2. Switch ‘OFF’ the control button.
3. Put ‘off’ the electric main switch.
4. Close the outlet valves of chilled water service tank.
