HVAC - Air Conditioning Systems I latest update exam questions and answers
What are the seven main functions of an air conditioning system? - -heating -cooling -ventilation -humidification -dehumidification -air circulation -filtration What are the three main categories of air conditioning systems? - -unitary -central -combined What is the purpose of an air conditioning system? - -human comfort -to maintain appropriate conditions for the intended function of the building What is the main purpose of heating? - -to offset heat lost to the atmosphere What is the main purpose of cooling? - -to offset heating from internal and external sources What are the main purposes of ventilation? - -replenish oxygen -dilute odors -provide makeup air to maintain an acceptable air balance What is the main purpose of humidification? - -to increase relative humidity to an acceptable level for comfort -minimize the effect of static electricity What is the main purpose of dehumidification? - -maintain comfort -acceptable air for the operation of sensitive equipment -(may also be used in humid areas like swimming pools during winter to prevent frost formation on exterior walls though this is rarely done) What are the main purposes of air circulation? - -assist in dissipation of body heat -prevent a buildup of odors What is the purpose of filtration? - -remove contaminants from recirculated and outside ai
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