Daikin air-conditioning india [p] ltd. Offers duct connection. It is extremely compact 29.5 cm height- easy installation when limited ceiling space. Meets a diversity of installation needs and low gas level detection function-computer monitored refrigerant level for ease of service. Simultaneous running of 2 no. 3.7 tr units possible with one no. 7.7 tr outdoor unit. Available in 2.2, 3.7 tr.