Mr. Phattaranirunkul has worked for 17 years as a
mechanical design engineer who was responsible for design,coordination and supervision of air conditioning and
ventilation system for high rise office buildings, factories,
hotels and residential condominiums. Gained more than
20,000 ton of refrigeration chillers, before joining Wisit
Engineering Consultants Ltd. Mr. Phattaranirunkul worked for many years with established consulting firms to gain valuable experience in designing mechanical systems for office, hotel and factory buildings.