ABSTRACT

Individual spaces or zones in a building are served by supply and return air and a thermostat to activate the Heating, Ventilating, and Air Conditioning (HVAC) system. All HVAC systems have a method of heat transfer. The heat transfer may occur in the central mechanical space or “plant” but in large buildings or complexes it will occur in individual mechanical rooms. Plumbing systems include any water, gas, or other fluid which is piped through a building, and in some cases disposed of as waste. The water systems in a building are of four types: consumed, circulated, static, and controlled. Electrical systems within a building may appear very complex, but are simple in their basic design. Contract documents or construction documents are the legally binding drawings and specifications which are used to construct the building. Mechanical drawings consist of mechanical plans, which are based on the building’s floor, plans.