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Installation Operation Maintenance

Installation Operation Maintenance

Installation Operation Maintenance

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General Start-upThe correction factors found inTable 16 can be applied as follows:1. Cooling capacity with glycol[kW] = F-CC x Cooling capacitywater [kW] (found in Tables 1-4)2. Power Input with glycol [kW] =F-PI x Power Input water [kW](found in Tables 1-4)3. Water Flow Evaporator withglycol [Litres/sec] = F-FLEVP xCooling capacity with glycol [kW]x 0.239 x (1 / Delta T Evaporator[°C])4. Water Pressure drop Evaporatorwith glycol [kPa] = F-PDEVP xWater Pressure drop Evaporatorwater [kPa] (found in Figures20 and 21)CGWN Only:5. Water Flow Condenser withglycol [Litres/sec] = F-FLCDS x(Cooling capacity with glycol[kW] + Power input with glycol[kW]) x 0.239 x (1 / Delta TCondenser [°C])6. Water Pressure drop Condenserwith glycol [kPa] = F-PDCDS xWater Pressure drop Condenserwater [kPa] (found in Figures22 and 23)In case of application with negativetemperature at the evaporator,combination of simultaneous usageof glycol both in evaporator andcondenser, or usage of another typeof fluid: please contact your localTrane sales representative. A reliefvalve is located at pump suctionlimiting water circuit pressure at3 bar. Nitrogen pressure inside ofthe expansion tank must be equal tothe geometric height of theinstallation + 0.5 bar (in order toavoid air entering in the watercircuit) Expansion tank must beinflated with nitrogen. Pressuremust be checked yearly. For a goodpump operation, pump suctionpressure must be between 0.5 and2.5 bar when pump runs.44CG-SVX06A-E4

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