All Services Engineering & Architecture HVAC Design $15/hr · Starting at $40 Having hand-on experience in engineering HVAC systems like Chillers,Boilers,AHU,VAV,Exhaust Fans etc using Johnson Controls package. About $15/hr · Ongoing Download Resume Having hand-on experience in engineering HVAC systems like Chillers,Boilers,AHU,VAV,Exhaust Fans etc using Johnson Controls package. Skills & Expertise DesignEngineeringHVAC System DesignSystems Engineering 0 Reviews This Freelancer has not received any feedback. Browse Similar Freelance Experts EngineersHVAC System DesignersDesigners