Through a French rental company we delivered a Carrier 30HT320A water-cooled chiller to a pharmaceutical company. They requested us to deliver a chiller with a glycol/water outlet temperature of -22°C. We selected a chiller from our stock which was capable to work with low suction pressure temperatures. Capacity of this chiller at water outlet temperature of +6°C is 1029 kW, but with -22°C glycol outlet the capacity drops to 300 kW. We have made some adjustments: new conventional expansion valves (instead of electronic expansion valves) and a new Johnson Controls capacity step controller. The original Carrier controller was limited to -15°C. After modifying the chiller we tested the chiller in our testing facility. In our testing facility we can test water- and air-cooled chillers up to approx. 1200 kW.