SOP Title: Operation of De-Humidifier
- Objective:
To lay down a procedure for the Operation of De-Humidifier.
- Scope:
This procedure is applicable for the Operation of De-Humidifier installed in the Engineering Department.
- Responsibility:
3.1 Engineering Department: To prepare and review the SOP. To follow the procedure laid down for the Operation of De-Humidifier as per this SOP.
3.2 Quality Assurance Department: To review and approve the SOP and Annexes. To ensure the compliance of 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 De-Humidifier. | |
| 5.2.2 | Ensure all the electrical connections are properly earthed. Ensure the power plug of the De-Humidifier 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 tripping through thermostat, motor over load tripping and motor over load tripping. | |
| 5.2.6 | Check for overload relay tripping. | |
| Operation: | ||
| 5.2.7 | Before starting the De-Humidifier, make sure that all filter accessorises are clean. | |
| 5.2.8 | Check that the Damper for fresh air inside, react air out, by pass air duct and process air out are open. | |
| 5.2.9 | Check the belt tension of the blower motor. | |
| 5.2.10 | Check the chiller water line valves are open. | |
| Sequence of operations: | ||
| 5.2.11 | Put the MCB “ON” located on the panel board and check the three-phase power which is indicated by Red, Yellow and Blue lamps. | |
| 5.2.12 | Voltage must be maintained in between 380 to 440 volts. | |
| 5.2.13 | Before putting the system “ON” ensure that the blower MCB is in “OFF” position and only bed drive motor is started. | |
| 5.2.14 | Now put “ON” the heater by pressing Red rocker switch located on the panel board and then keep the system continuously running till the reading temperature reaches to 150 ºC and Air Cooling Temperature is below 12 º C. | |
| 5.2.15 | Open the MCB door box and switch “ON” the blower system. | |
| Shut Down of De-Humidifier: | ||
| 5.2.16 | While stopping the De-Humidifier the heater Red rocker switch button should be switched “OFF” before 15 minutes to shut down the plant. | |
| 5.2.17 | After 15 minutes stop 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 De-Humidifier 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 De-Humidifier | ||
| 5.2.21 | If any breakdown occurs, inform Head of the Department and Quality Assurance Department. Put the tag “Equipment Under Maintenance, Do Not Start” and inform to Service Engineer for rectification. | |
- Abbreviation:
| Abbreviation | Expansion |
| MCB | Miniature Circuit Breaker |
| UTL | Utility |
| º C | Degree Celsius |
| ID | Identification |
| PM | Preventive Maintenance |
*Note – Ready to use SOP available in “DOWNLOAD” Section.