30HZ/HZV 043-280 Water-Cooled/Condenserless Liquid Chillers

5 - APPLICATION DATA5.1 - Unit operating rangeEvaporator Minimum MaximumEntering water temperature at start-up °C 6.8* 30Leaving water temperature during operation °C 4** 10†Condenser Minimum MaximumEntering water temperature °C 15 ‡Leaving water temperature °C 20 45Notes:* For application requiring operation at less than 6.8°C, contact Carrier s.a. forunit selection using the Carrier electronic catalog.** For operation between 4°C and -15°C, the unit must be equipped with option 5or 6, and the use of anti-freeze is required.† For an application, requiring operation up to +15°C leaving water temperature,contact Carrier for the selection of the unit.‡ Depends on the maximum condenser flow rate.Maximum outside temperature: For transport and storage of the 30HZ/HZVunits the minimum and maximum allowable temperatures are –20°C and+50°C. It is recommended that these temperatures are used for transport bycontainer.5.2 - Minimum chilled water flowThe minimum chilled water flow is shown in the table on thenext page. If the flow is less than this, the evaporator flow canbe recirculated, as shown in the diagram. The temperature ofthe mixture leaving the evaporator must never be less than2.8 K lower than the chilled water entering temperature.For minimum chilled water flow rate125.1.1 - Operating range 30HZLeaving condenser water temperature °C454442403936353025EDCBALegend1 Evaporator2 Recirculation5.3 - Maximum chilled water flowThe maximum chilled water flow is limited by the maximumpermitted pressure drop in the evaporator. It is provided in thetable on the next page. If the flow exceeds the maximum value,two solutions are possible:a - Select a non-standard evaporator (-2 baffles) which willallow a higher maximum water flow rate.b - Bypass the evaporator as shown in the diagram to obtain ahighter temperature difference with a lower evaporatorflow rate.20For maximum chilled water flow rate-15 -10 -6 -5 0 5 10Leaving evaporator water temperature °C1Legend:A 30HZB 30HZ with option 150 (high condensing temperature)C 30HZ with option 5D 30HZ with option 150 + 5E 30HZ with option 62Notes:1. Evaporator and condenser ,T = 5 KLegend1 Evaporator2 Bypass15