Voltas is planning to invest Rs 120 crore over the next three years for setting up three manufacturing units in Uttaranchal, and has started the valuation process to sell-off its loss-making Hyderabad unit.Kanwaljeet Jawa, senior vice-president (operations), said: "The company would be setting up three units in Uttaranchal for manufacturing air conditioners, central cooling plants and commercial refrigeration equipment with an investment of Rs 120 crore."He added that the Hyderabad unit will be operational for another six-to-eight months. "We will sell the remaining assets after transferring all the refirgeration equipment to the new Uttaranchal facility," Jawa said.While the new air conditioner manufacturing plant in Uttaranchal would have a capacity of five lakh units per year, the central cooling plant would have a capacity of 20,000 units in the first year, which would be scaled up to 50,000 units."The commercial refrigeration unit will have a capacity of 1 lakh units from the first year of operations," he added.