| This class prepares students to pass the core exam and a speciality exam of their choice. The specialty exam will be for installation or for service. The core exam will cover students' construction knowledge, general knowledge, and HVAC/R knowledge. The specialty exam will cover students' knowledge of service maintenance and/or repairs for HVAC/R systems, or it will cover these systems' installation. Once students complete their certification, many of them last for five years. Some last for only three, such as the ground source heat pump installation certification.
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