As a Heating, Ventilation, Air Conditioning (And Refrigeration) Drafter, you will need to master following:

• domestic cooling systems
• electric heating systems
• engineering processes
• types of heat pumps

More generally, a heating, ventilation, air conditioning (and refrigeration) drafter is also versed in:

• CAD software
• CAE software
• create technical plans
• design drawings
• engineering principles
• heating, ventilation, air conditioning and refrigeration parts
• liaise with engineers
• manual draughting techniques
• mathematics
• read engineering drawings
• technical drawings
• use CAD software
• use CADD software
• use computer-aided engineering systems
• use manual draughting techniques
• use technical drawing software

It also helps to know the following:

• advise on fitted ventilation systems
• assess heating and cooling systems
• combined heat and power generation
• components of air conditioning systems
• design an electric heating system
• district heating and cooling
• geothermal energy systems
• install refrigeration equipment
• perform refrigerant leak checks
• test tightness and pressure of refrigeration circuits
• 3D modelling
• adjust engineering designs
• build a product's physical model
• create a product's virtual model
• develop assembly instructions
• domestic heating systems
• draft design specifications
• draw blueprints
• fluid mechanics
• industrial heating systems
• lead a team
• mechanics
• product data management
• refrigerants
• render 3D images
• thermodynamics
• ventilation systems