The maintenance program and plan mpp is a detailed plan customized for a cooling tower system that describes operational and administrative strategies and process control measures to be taken to prevent and control the growth of legionella. General maintenance and care of evaporative cooling equipmentevaporative cooling equipment what is a cooling tower. Chapter 8 cooling towers system shutdown and start. Cooling towers by the book materials of construction maintenance thermal performance in the field troubleshooting understand your. Keeping your cooling tower running smooth and in good shape requires more than just the annual inspection before startup. The cooling tower casing and the water basin are made of strong corrosionproof fibreglass reinforced polyester resin.
In addition, new york state is now requiring the testing and inspection of cooling towers as well as implementation of a cooling tower maintenance plan. Cooling towers provide an ideal environment for the growth and incubation of many organisms, including the legionella bacteria. Chapter 8 cooling towers 801 scope and applicability. Protecting process cooling systems from costly fatigue back to case studies if your cooling tower and related equipment are not in good physical shape, there could be a terrible price to pay in loss of process efficiency, damage to downstream equipment, and loss of production. Maintenance cooling towers, closed circuit cooling towers.
Maintenance checklist continued seasonal shutdown checklist when the system is to be shut down for an extended period of time, the following services should be performed. For example, a cooling tower sized to cool 4540 m 3hr through a. Although a consistent biocide program can reduce the risks, it is best practice to clean a cooling tower at least twice a year. Cooling tower types cooling towers fall into two main categories. Cooling tower maintenance program and plan template. Maintaining optimum system performance is extremely important. For evapco induced draft and forced draft cooling towers. This document is designed as a guide to the development of a maintenance program and plan for a cooling tower. The water exits the cooling tower and is sent back to the exchangers or to other. A guideline on good operation and maintenance practice of fresh water cooling towers pdf format 2. The cooling tower is often the forgotten component of a water cooling system when it comes to maintenance. Operating and maintenance instructions cooling towers. Wood deterioration can shorten the life of a cooling tower from an anticipated 2025 years to 10 years or less. May 18, 2017 in addition, new york state is now requiring the testing and inspection of cooling towers as well as implementation of a cooling tower maintenance plan.
Cooling tower systems operation is most efficient when their heat transfer surfaces are clean. Best management practice and guidance manual for cooling towers. Operation and maint for energy efficiency greenleaf. Cooling towers are considered a vital element of the overall water cooling system in power generation plants, as well as in process and petrochemical plants.
The cost of overlooking the maintenance of a cooling tower can be heavy. Upon completion of this course, you will have a better understanding of the involved incooling tower sizing and selection as well as the principles. Kroger encyclopedia of life support systems eolss 2. Suptic air conditioning and refrigeration systems ranging from light commercial to industrial applications may rely on cooling towers to remove waste. If the user has no operational manual of his own, all maintenance and repair work could be recorded on page 21 of this guide. Installation, operation and maintenance manual mesan usa. Operation and maintenance of cooling towers pdf format 292kb part 3. The water exits the cooling tower and is sent back to the exchangers or to other units for further cooling. The evaporative cooling unit cold water basin should be drained.
Oct 15, 2015 seasonal cooling towers need to be drained and sanitized at the end of the cooling season. Water treatment methods for cooling towers pdf format 333kb typical schematic diagram of fresh water cooling towers condensing water circuit. Cooling towers by the book materials of construction maintenance thermal performance in the field troubleshooting understand your tower baltimore aircoil main menu. This type of maintenance is important for keeping your cooling towers in peak operating condition. Cooling towers the development, practice, and performance of evaporative cooling systems or cooling towers have been described in numerous publications including some of those listed in the bibliography. Top 4 problems for cooling tower maintenance belzona blog.
Ensure cooling tower operation complies with nys doh legionella. At least 3 feet of space shall be allowed on each access door side for crossflow towers and the minimum calculated clearance on all sides of counterflow towers, based on required intake area refer to mesans. Stone cold cooling towers has a 24hour emergency response service. Cooling towers are considered a vital element of the overall watercooling system in power generation plants, as well as in process and petrochemical plants. A one degree increase in water temperature can result in a 2% increase in energy usage, andor reduced product output. Preventive maintenance program and plan for cooling towers utica. Dcn59 page confidential 2 of 12 1 purpose and scope the purpose is to define a preventive maintenance program and plan for cooling towers at the suny polytechnic quad c building utica new york. These simple preventive cooling tower maintenance tips can help users save up to 15 percent on. The sections included in this template represent a survey of procedures currently used in the field and aim to capture the essential building blocks required for a comprehensive program document. The water basin is an integrated part of the cooling tower casing, on this reason leakage is prevented for the examination of the spray nozzles and for maintenance on the adjustable float valve inspection hatches are provided. Cooling tower operation becomes inefficient and repair and replacement costs are excessive.
Chapter 8 cooling towers system shutdown and startup. A guide to troublefree cooling towers a basic understanding of cooling tower operation and maintenance will help keep a cooling water system running in top condition, year after year by david m. Stick to a regular maintenance schedule to reduce the risk of legionella and prevent premature failure, recommends dan glover, technical services group manager for southland industries, a national mechanical engineering, construction, and. Most cooling towers are located in a remote area of your facility, either on a roof, or outside and away. Location of the cooling tower must follow these guidelines.
Maintenance cooling towers, closed circuit cooling. Proposed resolution to add new chapter 8 cooling towers to title 24 of the rules of the city of new york to establish rules for maintenance of cooling towers to minimize potential contamination by legionella bacteria to prevent outbreaks of legionnaires disease, a type of pneumonia with a high case fatality rate. Sop for maintenance and cleaning of cooling towers. Untreated cooling towers may create the formation of bacteria legionella. Also, be sure to drain water from pipes to prevent freezing up. Typical closed loop cooling tower system is shown in figure 7. Cooling towers can be a significant source of water use for both of these categories of water use at federal facilities. Good operation and maintenance practice of fresh water cooling. Water treatment chemicals utilized for cooling tower systems which contain molybdenum are prohibited in the jea sanitary sewer. Other factors, which we will see, must be stated along with flow rate m3hr. However, due to variations in the water source and their operating in an open environment, cooling towers are subject to four major water treatment concerns. Preventive maintenance program and plan for cooling. As previously mentioned, cooling tower environments can present significant issues regarding maintenance and repair.
Operation and maintenance of cooling towers must be in accordance with. Seasonal cooling towers need to be drained and sanitized at the end of the cooling season. Jan 04, 2016 proposed resolution to add new chapter 8 cooling towers to title 24 of the rules of the city of new york to establish rules for maintenance of cooling towers to minimize potential contamination by legionella bacteria to prevent outbreaks of legionnaires disease, a type of pneumonia with a high case fatality rate. All cooling tower discharges must be in accordance with applicable state, local or federal rules and regulations. Sep 26, 2016 this type of maintenance is important for keeping your cooling towers in peak operating condition. Air enters at the ambient condition point a, absorbs heat and mass moisture from the water. Louvered enclosures for cooling towers shall be designed based on the towers airflow rate and less than 0.
Cooling tower operation and maintenance for improved energy efficiency. A psychromehic analysis of the air passing through a cooling tower illustrates this effect figure 2. In the past, redwood was selected for use in cooling towers because. Each year, specify person or title will certify to the department of health, that all cooling towers were inspected, tested, cleaned, and disinfected in compliance with the doh regulations, that the condition of the cooling towers is appropriate for intended use, and that a maintenance program and plan has been developed and implemented. Preventive maintenance program and plan for cooling towers.
Stone cold cooling towers has the knowledge, background, engineering, and construction capabilities to manage all your cooling tower needs. Stick to a regular maintenance schedule to reduce the risk of legionella and prevent premature failure. Work in cooling towers can create health and safety hazards. A basic understanding of cooling tower operation and maintenance procedures will keep a cooling water system running trouble free, year after year. Cooling technology institute wtb148 08 routine treatment continuous always preferred o continuous free residuals of 0.
Cooling towers and the importance of maintenance plant. Cooling towers serve the vital role of cooling water for plant heat exchange equipment. Routine maintenance also helps to conserve water and extend the operating life of cooling equipment. Keeping your cooling tower in good shape requires more than just the annual inspection before startup. The purpose is to define a preventive maintenance program and plan for cooling towers at the suny polytechnic quad c building utica new york. Jun 22, 2015 these simple preventive cooling tower maintenance tips can help users save up to 15 percent on electricity costs. Maintenance startup and preventative maintenance services to maximize the operating life of your evaporative cooling system, your local bac representative can provide startup and preventive maintenance services which will reduce the potential for unplanned downtime due to equipment failure and keep it operating at peak efficiency. Vxt cooling towers vxiss industrial fluid coolers vxcss evaporative condensers operating and maintenance instructions b altimore aircoil company vx equipment has been designed to give long, troublefree service when properly installed, operated and maintained. However, a wellmaintained cooling tower will continue to function at the original optimum efficiency, keeping energy costs low. Best management practice and guidance manual for cooling. Includes first cost of tower and attendant devic es, cost of operation, cost of maintenance and or repair, cost of.
In general, cooling towers are classified based on their construction and air movement through the cooling tower in relation to the falling water. Periods of nonuse winter layup exacerbate the problem. Wood continues to be widely used for the construction of cooling towers. Cooling towers must be cleaned on a regular basis to prevent the growth of bacteria including legionella pneumophila. In the case of the cooling tower company tctc series tcia cooling towers, this transfer of heat is accomplished by induceddraft fans drawing ambient air. Preventive maintenance program and plan for cooling towers utica cfmu00018 r1 printed copies are considered uncontrolled. In this type of cooling tower the water to be cooled is distributed evenly over a packing.
Its a good example of the phrase out of sight, out. Failure to follow the guidelines provided in this manual may result in poor. At least 3 feet of space shall be allowed on each access door side for crossflow towers and the minimum calculated clearance on all sides of counterflow towers, based on required intake area refer to. Cooling tower safety and maintenance aligning debris management and water treatment procedures is key to cooling tower safety and efficiency by randy simmons the following is an important reminder of the need for all companies that use cooling towers, to adopt and keep diligent in their maintenance and water treatment program. Recommended maintenance schedule see maintenance manual for startup instructions and lubrication recommendations. The efficiency of cooling towers relies on the accurate and reliable information on the outdoor wet bulb temperature, required to avoid cooling tower increased water and energy usage and. Startup and preventative maintenance services to maximize the operating life of your evaporative cooling system, your local bac representative can provide startup and preventive maintenance services which will reduce the potential for unplanned downtime due to equipment failure and keep it operating at peak efficiency. Apr 01, 2016 dutchess community college cooling tower maintenance program and plan april 1, 2016 6 continuous routine treatment will be followed. Owners of buildings with a cooling tower are required by law to implement a maintenance plan by march 1, 2016. This hazard can be transported through the rising mist associated with cooling towers creating an inhalation hazard.
Cooling towers perform an important function within hvac systems. For nearly a century, we have provided exceptional quality equipment and service to the hvac, process cooling, industrial, and refrigeration markets. For this reason special precautions outlined in this procedure must be followed. Iii aircooled heat exchangers and cooling towers d. Our emergency crews can be dispatched within hours with the necessary tools, materials and equipment to handle any type of cooling tower emergency.
Good operation and maintenance practice of fresh water cooling towers. For example, the less clean your tower is, the longer and harder it needs to work to achieve the same cooling goals. The maintenance program and plan mpp is a detailed plan customized for a cooling tower system that describes operational and administrative strategies and process control measures to be taken to prevent and control the growth of legionella requirements. However, these are four of the key problem areas relating to cooling tower maintenance. Range range is determined not by the cooling tower, but by the process it is serving. Manuals star cooling towers star fan stack installation instructions pdf star typical drift eliminator detail pdf star typical endwall detail pdf star typical hot water basin installation detail pdf star typical louver installation detail pdf star typical partition wall detail pdf star typical stair pad detail pdf star typical stairway detail pdf star typical structural. Those who have a working knowledge of cooling tower preventative maintenance and upgrade technology will get the most out of their cooling towers. Follow these 10 simple maintenance tips to get the most out of cooling towers. To obtain optimum performance and maximum service life, it is. Providing proper installation, maintenance and operation of the series tcia cooling tower is the owners responsibility, and is required for safe and efficient operation. All options cooling towers closed circuit cooling towers hybrid evaporative condensers ice thermal storage remote sump tanks equipment controls parts and services.
Maintaining your cooling towers will save you money in operations and energy usage. Maintenance instructions for evapco induced draft and forced draft cooling towers. The owners of cooling tower installations should maintain proper conditions of the fresh water cooling towers to minimize contamination and nuisances to the public. General maintenance and care of evaporative cooling.