Lecture Notes Case Study Example | Topics and Well Written Essays - 1500 words

Lecture Notes - Case Study Example Heat Exchanger found within the main furnace unit. When the system is turned on, heat air drawn into the air exchanger from outside of the building through a cold air return chase, which draws cool air from the interior of the building as it’s replaced by warmed air. Evaporator Coil; supplies cooled air for the furnace blower to distribute through the ducts or airways and is made of metal tubes surrounded by thin aluminum fins, which cool the air similar to a radiator in an automobile. Condensing Unit; located outside of the building and has a compressor that condenses refrigerant gas, cooled by heat exchange with the outside air, to a fluid, then pumps the fluid through a metal line to the evaporator coil in the furnace unit. As it passes through the evaporator coil, tiny spray nozzles spray the cooling fluid into a chamber, which lowers the pressure and the fluid evaporates back into a gas. In a building, they are supplement as they provide thermal comfort during cold weather, and fresh air within the reasonable distance from where they have been installed. They also minimize air infiltration and ensure pressure in different parts of a building is in equilibrium. They also ensure room air distribution. Some of it components include a thermostat, furnace, heat exchanger, condensing unit, refrigerant lines, and evaporating coil. In a building they serve various purposes which are usually perceived to be of help than harm; a thermostat is a temperature sensitive switch, used to control the HVAC system. When temperature lowers beyond room temperature switch the system to heat the room in therefore rising to the require room temperature. It also switches off the system if the optimum is achieved to prevent further heating. In this it enables the HVAC system to regulate the temperature of the building. High temperatures n a building causes a lot of