Which is not a method employed to maintain the desired temperature of the spray water in air washers used in air conditioning systems?
a) an electric heater and fan
b) part of the spray water is recirculated and hot or cold water is added as required
c) the spray water if recirculated through a heat exchanger and is cooled by chilled water
d) the spray water is recirculated through a heat exchanger and is heated by hot water
e) a heating or cooling coil is directly mounted in the sump of the washer
Answer: A