There are three distinct types of muscles: skeletal muscles, cardiac or heart muscles, and smooth (non-striated) muscles.
HVAC technicians are responsible for the installation, maintenance and repair of heating, ventilation and air conditioning (HVAC) systems. As an HVAC technician, your job duties may include inspecting existing systems and making recommendations intended to improve the efficiency and/or safety of that system's performance. HVAC-R techs may also work on refrigeration systems.
The Mechanical Trades are responsible for performing work orders related to the maintenance, testing, preventative maintenance and operation of all heating, ventilation and air-conditioning systems, the distribution of steam, chilled water, distribution of domestic and fire protection water, wet fire system testing, the maintenance and operation of ...