Free Webinars

Basic Pump Maintenance: Keeping a problem from happening in the first place

On the surface, pumps seem like pretty simple things. But combining electrical and mechanical operations to move water from one place to another is complex and can be rife with problems. In this free 1 hour webinar, instructor Wade Heisler helps take some of the mystery out of basic pump maintenance. We'll discuss maintenance strategies and techniques to help keep pumps from failing in the first place.

Condensers and Cooling Towers

Condensers and Cooling Towers

This online course overs the function, construction, and operation of both air- and water-cooled condensers and related devices. Discusses cooling towers and spray ponds, including maintenance and troubleshooting. Includes a lesson on evaporative condensers. Concludes with a discussion of water-related problems and how to solve them. Condensers and Cooling Towers is available in online and course manual formats.

TPC Training Systems is authorized by IACET to offer 0.5 CEUs for this program.

Review a full course list for Refrigeration Technician

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  • Online Course & Test $85.00
  • Course Manual $57.00

Please select a format.

Lesson 1 - Air-Cooled Condensers


Condenser capacity, construction, and types; Pumpdown circuit; Low-ambient controls; Receivers; Pressure-relief devices; Maintenance

Learning Objectives:
– Contrast the two types of air-cooled condensers forced air.
– Describe the construction of an air-cooled condenser, including the tubes, fins, headers, and subcooling circuit.
– Name the factors that affect condenser capacity.
– Explain the effects of ambient temperature on the capacity of an air-cooled condenser.
– Describe various types of low-ambient controls for air-cooled condensers.
– Explain how spring-loaded pressure-relief valves and fusible plugs protect against possible explosions caused by high pressure.
– List the periodic maintenance procedures common to most air-cooled condensers.

Lesson 2 - Water-Cooled Condensers


Condenser types; Pressure-relief devices; Water-regulating valves; Strainers; Maintenance; Cleaning; Inspection; Troubleshooting

Learning Objectives:
– Name and describe the basic types of water systems used by water-cooled condensers.
– Define the terms makeup water and fouling factor.
– Describe the construction of the various kinds of water-cooled condensers.
– Explain the purpose of the accessories used with water-cooled condensers
– Explain water-cooled condenser maintenance procedures, including inspection for leaks and chemical and mechanical cleaning.

Lesson 3 - Cooling Towers and Spray Ponds


Cooling tower and spray pond function capacity, types, controls, maintenance, and troubleshooting

Learning Objectives:
– Explain the function of cooling towers and spray ponds and the factors that affect their capacities.
– Identify the basic types and construction of cooling towers and spray ponds.
– Describe the components required in a cooling-tower or spray-pond water-circulating system and explain the purpose of each.
– Describe the various devices used to control cooling-tower capacity.
– Explain cooling-tower and spray-pond maintenance procedures.

Lesson 4 - Evaporative Condensers


Refrigerant, air-circulation, and water-circulation systems; Capacity control; Freezing condition operation; Maintenance; Troubleshooting

Learning Objectives:
– Identify the basic types of evaporative condensers.
– Describe the components that make up the three circulation systems in an evaporative condenser
– List the kinds of capacity controls used on evaporative condensers and explain the operation of each.
– Explain how to provide freeze protection for an evaporative condenser.
– Outline evaporative-condenser maintenance procedures.

Lesson 5 - Controlling Water-Related Problems


Chemical water treatment; Water-related problems; Causes and control of corrosion, scale, biological fouling, and wood deterioration

Learning Objectives:
– Describe the three categories of water problems encountered in the water systems of water-cooled equipment.
– Name the five causes of corrosion and explain how to control them.
– Describe the three most common types of scale, their causes, and how to control them.
– List the three types of organisms that grow in water systems and explain how to control them.
– Describe the three types of wood deterioration and explain how to control them.
– Explain the operation of three chemical-feeding devices used in water systems.

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