Using their strong technical knowledge, CAD specialists can design the most efficient, cost-effective system, saving their clients money Service technicians install new units, fix broken ones, and maintain existing units. Manufacturers research, design, test and manufacture heating and cooling systems that deliver maximum comfort for lowest cost. Their systems must be energy-efficient and reliable. Contractors and business owners supervise employees, order parts and communicate with customers. Along with technical skills, business management courses are a plus.
Project engineers supervise multiple crews and work at different job sites.
The engineer must schedule the crew, explain the job to them, and have the correct supplies on site. The project engineer also bids on new jobs. Engineers also work on environmental issues such as indoor air quality and protecting the earth's ozone layer through refrigerant recovery. Or you may choose to work for a manufacturer or wholesaler. When you're experienced, you might decide to start your own business.