In response to demand from air conditioning manufacturers for higher capacities, the new CS85 screw compressor series features compact models with capacity in excess of 100 hp, says the company. There is also a new CS65 series, which completes the compact screw range into smaller capacities. All new models have a dual-capacity control system, which can be operated either in steps or stepless as required. Models can be operated using R-134a, R-407C, or R-22, with or without an economizer.