ESRT Courses

ESRT 110    5 credits
Refrigeration Principles
Introduction to basic heat transfer, refrigeration applications, major components, equipment, and systems. Includes job opportunities, tools and test instruments. Lab encompasses experiments in boiling, freezing, temperature, refrigerants, gauges and repair standards. Lab projects include repairing residential and light commercial equipment while emphasizing the proper use of repair instruments and procedures. Prerequisites: Math 096 or instructor’s signature.

ESRT 112    4 credits
Refrigeration Projects Lab
Laboratory projects on basic refrigeration equipment, repairing residential and light commercial equipment. Projects emphasize the proper use of repair instruments and procedures. Prerequisite: concurrent enrollment in ESRT 110.

ESRT 114    1 credit
Refrigerant Recovery/Recycle
Introduction to proper handling of CFC/HCFC refrigerants and non-CFC replacements, including recovery, recycle and reclaiming processes. Global issues, regulations and legislation discussion will prepare students for national certification.

ESRT 120    5 credits
Heating Systems
Introduction to heating systems, emphasizing electric, gas, oil, solar systems, hot water and steam boiler systems. Includes lab experience troubleshooting, practicing repair procedures and combustion analysis. Proper use of tools, instruments and tests to perform efficiency measurements included. Prerequisites: ESRT 110 or instructor’s signature.

ESRT 130    3 credits
Air Conditioning
Principles of the air conditioning processes, including mechanical components, ventilation, filtration, psychrometrics and relative humidity. Emphasis will be toward residential applications and tools for service and troubleshooting. Laboratory experience includes repairing and servicing residential and light commercial air conditioning equipment. Prerequisites: ESRT 110 or instructor’s signature.

ESRT 134    2 credits
Heat Pump Repair
Principles of the heat pump theory and practices, including trouble-shooting mechanical, electrical and defrost components. Residential and commercial applications, including various equipment manufacturers and styles. Includes comparisons of standard versus high-efficient units. Lab will enable students to work on residential and light commercial heat pump equipment. Prerequisites: ESRT 110 or instructor’s signature.

ESRT 136    2 credits
Indoor Air Quality
Students will learn techniques to recognize signs of IAQ problems, investigate for potential pollutants and sources, determine levels of common pollutants, and propose solutions to the problem. Course will provide students with information and practical guidance to inspect the performance of mechanical ventilation systems.

ESRT 200    5 credits
Commercial Refrigeration
Study of systems and components used in commercial applications. Emphasis on proper installation and diagnostic procedures. Ice machines, walk-ins, display cases, compressors, condensers, evaporators, valves, piping, service techniques and test equipment to be highlighted. Prerequisites: ESRT 110 or instructor’s signature.

ESRT 205    2 credits
Blueprint Reading
In-depth study of construction blueprints for residential, commercial and industrial facilities emphasizing interpretation as it applies to energy and HVAC industries. Additional information will include interpretation of contract documents, specifications and addendums emphasizing building components.

ESRT 210    2 credits
Boiler Systems
Advanced study of commercial and industrial boiler applications commonly found in larger facilities. Includes low-pressure hot water and steam boilers, high-pressure steam boilers, boiler fittings, feed water accessories, combustion accessories, draft control and water treatment. Operations, maintenance and boiler room safety is emphasized.

ESRT 212    5 credits
Commercial Refrigeration Projects Lab
Practical experiences working on commercial machinery and controls, including ice machines, coolers, ice cream machines, beverage dispensers, walk-ins and air conditioning equipment. Prerequisite: concurrent enrollment in ESRT 200.

ESRT 220    5 credits
Industrial Refrigeration I-Systems
Principles of industrial refrigeration systems and equipment as applied to industrial warehouses and buildings. Includes information for direct expansion, flooded, overfeed systems. Discussion of ammonia and halocarbon (freon) compressor types, condensers, evaporators, metering devices, pumps, defrost methods, vessels and related devices. Prerequisites: ESRT 110 or instructor’s signature.

ESRT 223    2 credits
Design and Computer Load Applications
Application engineering and design course calculating refrigeration and air conditioning equipment. Work includes computerized design of heat load and heat gains, pipe sizing, and equipment selection. Students will design refrigeration equipment for walk-in coolers, and heating and air conditioning systems used in residential and light commercial buildings. Prerequisites: ESRT 110, 130.

ESRT 230    3 credits
Industrial Refrigeration Maintenance and Safety
Continuation of Industrial Refrigeration I, with emphasis on maintenance, operation and safety. Information will include scheduling, preventive maintenance, water treatment, troubleshooting, repair procedures, energy conservation, process safety management (PSM) programs and risk management programs (RMP). Prerequisites: ESRT 220 or instructor’s signature.

ESRT 296    1-5 credits
Work Experience
Designed to provide students with on-the-job practical field experience. One credit for each five hours of work experience per week. Prerequisite: instructor’s signature.