Building Environmental Systems - BES™ Operator Class II - 990

Mohawk College Certificate

One of the most highly recognized certifications for building operations in Canada, the Building Environmental Systems - BESprogram is designed to provide education for the efficient and safe operation and maintenance of today's complex buildings. It is recommended that applicants be employed in building operations.

The BESprogram adheres to the fundamental premise that "the building is a system" in which heating, air conditioning, refrigeration, ventilation, electrical power, lighting, water and air supply are not separate isolated systems but are connected and interdependent. Focus on the knowledge required to understand the functioning of all systems in commercial, office, institutional and residential buildings. There is also a focus on sustainability. The programs look at how buildings can be operated and maintained more efficiently.

Mohawk offers two BES™ certificates: Building Environmental Systems - BES™ Operator Class II and Building Environmental Systems - BES™ Operator Class I. This is the first level of certification, BES™ Operator Class II.

Program Contact
Continuing Education Technology

Ontario Secondary School Diploma (OSSD) or equivalent (Mohawk Academic Upgrading, GED) OR 19 years of age or older.

You do not need to apply to begin this program. Start by ensuring you meet the admission requirements listed above and then register for the courses listed in the Program of Studies when they are offered.  Some courses have prerequisites, so please check the Program of Studies for details. Find out how to register for a course.

The program of studies displayed below applies to students starting the program in the 2017/18 academic year. Students who began in other academic years may require different courses to be eligible to graduate. If you have questions regarding a strategy for completion contact Continuing Education - Technology and Skills.

Click on the Course number or Course title for more information on each course. 

Visit the Mohawk College Bookstore Textbook Search (opens in new window) for information on textbooks.

A selection of courses are available each term. Courses that are currently not available (N/A) for registration may be offered in the future – check back frequently.

Mandatory Courses

Register Course number Course title Course Hours
Course description: Explore building systems in a holistic way recognizing the interactions that exist among teh various mechanical systems and encouraging building operators to be conscious of overall operations including system operations, safety, environmental considerations and energy efficiency. Key concepts include considering buildings as a system and the components of the building envelope.
Course description: Examine and explain air handling systems and fans, filters and ductwork. Investigate the design and implementation of related preventative maintenance programs.
Course description: This course, intended for Building Operators will study the basics of electricity, sources of electricity and building electrical services. In this course students will examine protective devices and measuring consumption with emphasis on receptacles, switches and solenoids, electric motors and starters. Students will also study the basics of lighting, fixtures and maintenance of these electrical systems.
Course description: Examine operation and maintenance of boilers, pipe systems and plumbing for building operators. Explain hot water and steam boilers and their accessories, oil and gas burners, heating controls, water pipes, fittings, valves, pumps and fire protection and alarm systems.
Course description: This is an introduction to the operation and maintenance of refrigeration and air conditioning equipment for building operators. In this course you will cover refrigerants, chillers, controls, instrumentation, condensers, and cooling towers. You will also study heat pumps, absorption systems, energy conservation and heat recovery.
Course description: Examine and explain automatic controls and their working. Investigate how are they applied and interconnected.
Course description: Explain why treatment is so important to the life of equipment. Examine the importance of knowing what water treatment is, its effects on equipment and the terminology of water treatment.