Cooling Tower , Purpose
Cooling Tower , The purpose of this SOP is to define the operation and maintenance procedure of Cooling Towers of XX Pharmaceuticals Ltd.
Cooling Tower , Scope
This SOP applies to the cooling towers, installed at the roof top area of Solid and Sterile Blocks of XX Pharmaceuticals Ltd.
Definitions / Abbreviation:
[][]EHS: Environment Health and Safety.
[][]PPE: Personal Protective Equipment.
[][]SOP: Standard Operating Procedure.
Responsibilities:
[][]The roles and responsibilities are as follows:
Engineering (Validation) Department
[][]To prepare the SOP & revise it when necessary.
Engineering (Maintenance) Department
[][]To provide necessary support for smooth operation & maintenance of cooling towers.
[][]To ensure that the operators are responsible to carry out the operation and maintenance work and regular checking of the critical components and logbooks.
[][]To develop a list of spare parts based on the manufacturer’s recommendations and to forward the list to the Planning and Procurement department with a request to place order as required.
[][]To engage technician/mechanic/operator/supplier in repair and maintenance work.
Operators/Technician
[][]To operate the cooling tower according to the SOP.
[][]To do the maintenance job according to the schedule.
Head of Engineering
[][]To ensure that the operation and maintenance of cooling towers are done properly.
[][]To approve any maintenance plans related to the cooling towers.
Head of Quality Assurance
[][]To approve this SOP
[][]To ensure overall implementation of this SOP.
Procedure
Precautions:
[][]All maintenance work must be carried out safely in accordance with the requirements of the Plant Safety Requirements and the EHS safety notices must be displayed around the plant.
Specific attention must be paid to the following:
[][]Personal protective equipment (PPE) and clothing appropriate to the job must be worn.
[][]Equipment must be electrically isolated and locked out where possible.
[][]Ensure the control panel is switched off before carrying out any check.
[][]Maintenance activity must be carried out by trained technician/operators.
[][]“Under Maintenance” tag be displayed in a prominent position on a machine, equipment or facility undergoing maintenance work.
Pre-Start Check
[][]Inspect all wiring connections to be sure they are clean and tight.
[][]Check the power supply voltage within the utilization range.
[][]Check cooling Tower basin water level.
[][]Check the fused-disconnect switch(es) that supplies power to the condenser water pump starter.
[][]Start Condenser water pump.
[][]Start the cooling tower fan.
[][]Check all piping for leakage.
[][]Check the condense water valve are “OPEN”.
[][]Visually inspect the condenser water pressure.
[][]Check condense water modulating butterfly valve position.
[][]Check the condense water line make-up water tank water level.
[][]Starting procedure
[][]Power ON for VSD.
[][]Press “Hand” Button.
[][]Press Start Button.
Stopping Procedure
[][]Press the Stop (Red) button.(See Figure-I)
[][]Power off for VSD.
Preventive Maintenance schedule
[][]Use of a periodic maintenance program is important to ensure the best possible unit performance and efficiency. Fill up the Annexure – I and II after completing the maintenance tasks accordingly.
Daily Maintenance
[][]Check the condense water pressure,
[][]Check cooling towers basin water level.
[][]Clean the cooling towers outside and surroundings.
Weekly Maintenance
[][]Current drawn by the fan motor.
[][]Check cooling tower fan rotation.
[][]Unusual noise, vibration, and so forth.
Monthly Maintenance
[][]Check and clean strainer.
[][]Clean Fan blade.
[][]Check the Belt tension.
[][]Clean the Internal side of the cooling Tower.
[][]Check and adjust sump water level.
[][]Check and adjust blow-down.
[][]Inspect water distribution.
[][]Clean the cooling towers Fins.
[][]Change the cooling water, refill with chemical.
[][]Grease the cooling tower motor.
[][]Clean the Y-strainer of chilled water and condenser water line.
Annually Maintenance
[][]Check/clean all parts of cooling tower.
[][]Clean cooling tower basin.
[][]Clean cooling tower fins.
[][]Check setting and operation of all controls and safety devices.
[][]Check starter contactors for wear and replace if required.
[][]Check motor winding insulation.
[][]Check motor amps draw.
[][]Check and adjust the water flow.
[][]Change the water of chilled water line.
Annexure
Annexure-I: Maintenance Log sheet of Cooling Tower