From receptacle and switches to Electrical panel connection;From PTAC and split unit to Package RTU and VRF AC installation;From Fire alarm system to BMS control system installation;Kitchen Ansul, KX Precipitator, Generator ATS, Fuel oil Pump, Flue and Laundry Exhaust, Cooling Tower, Fire Reserve Tank, ERU, FCU, Cogen, Boiler and Hot Water Heater Control setup have all been done.Mechanical Hydronic Cooling and Heating system control setup, testing, trouble shooting, maintenance and services for countless hotel and residential, none trouble can slip through my finger.If challenge is the meal of the day, I have been hungry!