We are professional refrigeration condensing unit manufacturer, our equipment mainly being used in commercial fields like cold/freezing room, and supermaket showcase. Feature Bft-20a(jq) Bft-30a(jq) Bft-40a(jq) Bft-50a(jq) Bft-60a(jq) Capacity: 3.4 4.9 6.8 8.4 10.1 Power: 170 200 200 200x2 200x2 Fan diameter: 400 450 450 450 450 Air volume: 4100 5680 5680 5680x2 5680x2.