The unladen weight of the chillers increases with their cooling capacity. At outputs of 5 kW to 28 kW (1.5 tons to 7.5 tons), units of the HYFRA Alpha and HYFRA Sigma series weigh between 170 kg and 250 kg (375 lbs to 550 lbs). At an output of 80 kW (22.5 tons), the weight is 440 kg (970 lbs) (HYFRA Sigma) or 480 kg (1,060 lbs) (HYFRA Alpha). The more compact variants HYFRA Alpha c and HYFRA Sigma c weigh 114 kg to 130 kg (250lbs to 290 lbs). The minichillers in the HYFRA eChilly/eChilly+ series weigh between 55 kg and 90 kg (120 lbs to 200 lbs). More Information