SOP Title: Operation of Reciprocating Liquid Chiller Plant
- Objective:
To lay down the procedure for the Operation of Reciprocating Liquid Chiller Plant.
- Scope:
This procedure is applicable for the Operation of Reciprocating Liquid Chiller Plant installed in the Engineering at site to provide cool Air.
- Responsibility:
3.1 Engineering Department: To prepare and review the SOP. To follow the procedure laid down for the Operation of Reciprocating Liquid Chiller Plant as per this SOP.
3.2 Quality Assurance Department: To review and approve the SOP and Annexes. To ensure compliance to the SOP.
- Accountability:
Head, Engineering Department / Head, Quality Assurance Department.
- Procedure:
- Definitions:
5.1.1 Engineering Associate: Executive or Operator of Engineering Department trained to perform duties as per this SOP.
- Preventive Maintenance: Maintenance activity performed to ensure that the equipment will function smoothly and to avoid breakdowns. These activities are performed as per predefined frequency.
5.2. Operational Procedure:
| Safety Precautions/Instructions: | ||
| 5.2.1 | Wear appropriate Personal Protective Equipment while operating the Reciprocating Liquid Chiller Plant. | |
| 5.2.2 | Ensure that all the electrical connections are properly earthed and the power plug of the Reciprocating Liquid Chiller Plant is fixed in the socket properly. | |
| 5.2.3 | Inspect electrical cables and connectors for any sign of damage. | |
| 5.2.4 | Ensure that the ON/OFF push button is working properly. | |
| 5.2.5 | Check for the any leakages of oil and leak test of gases. | |
| 5.2.6 | Do not leave the compressor for the first 15 minutes after starting. | |
| Operation: | ||
| 5.2.7 | Check for the oil level through side glass of the compressor. This should be at half mark as seen through the visible glass. | |
| 5.2.8 | Check the chillers water line valve is open. | |
| 5.2.9 | Heater should be in ‘ON’ position. | |
| 5.2.10 | Switch on Chiller plant by operating toggle switch located on PLC board. | |
| 5.2.11 | After preset delay of 3 minutes circuit indicates OK. | |
| 5.2.12 | Compressor will start depending on set temperature and actual entering water temperature. | |
| 5.2.13 | Oil pressure switch is closed within six seconds and will continue to run. | |
| 5.2.14 | Low Pressure switch is bypassed for 45 seconds during the compressor starts. | |
| 5.2.15 | Liquid Line Solenoid Valve will be opened to clear refrigeration circuit. | |
| 5.2.16 | Depending upon the set temperature & cooling range. The time of delay between closing should be one minutes each. | |
| Shutdown Reciprocating Liquid Chiller Plant : | ||
| 5.2.17 | Move the toggle switch towards left which will followed by pump in down mode, unloading the compressor and switching off the display and finally shutdown of the system. | |
| Preventive Maintenance: | ||
| 5.2.18 | Perform the Preventive Maintenance as per Annexure. | |
| 5.2.19 | Affix the “Preventive Maintenance Status Label” on the Reciprocating Liquid Chiller Plant as per SOP. | |
| 5.2.20 | If Preventive Maintenance activity is outsourced, the observations are to be transcribed in the Annexure and external party certificate to be attached. | |
| Action Plan During Breakdown of Reciprocating Liquid Chiller Plant: | ||
| 5.2.21 | If any breakdown occurs, inform the Head of the Department and Quality Assurance Department. Put the tag “Equipment Under Maintenance, Do Not Start” as per SOP and inform the Service Engineer for rectification. | |
- Abbreviation:
| Abbreviation | Expansion |
| QAD | Quality Assurance Department |
| EGD | Engineering Department |
| UTL | Utility |
| PLC | Programmable Logic Controller |
*Note – Ready to use SOP available in “DOWNLOAD” Section.