GEA Grasso V Series Installation And Maintenance Instructions Manual

GENERAL INFOMain setup dataDescription Value RemarkGrasso V 300 (T) .. V 600 (T) Grasso V 700 (T) .. V 1800 (T)Start frequency max. 6 starts per hourThe NO-solenoid has to bede-energised 20 secondsafter starting the compressormotor to enabel the motor toreach the minimum speed andthe compressor to develop therequired oil pressure.Time interval between stoppingand re-starting min. 2 minutesTime interval between startingand re-starting min. 10 minutesTime interval between loadingand unloading min. 3 minutesFor continuous minimum part-load (i.e. more than 30minutes) consult Grasso.Adjust the steps between upand down loading, in such away that the system is runningstable.Oil level 25-75% crankcase sight glassMin. oil temperature > 30 oC and > Psaturated crankcase pressure + 15 KIndicated minimum value is thelowest oil temp. at which thecompressor is allowed to bestarted.Max. oil temperature Refer to oil selection table/applied type of oilRequired oil viscosity;≥ 10 cSt during operation atlocation of bearings.The maximum temp. dependson the operating conditions ofthe compressor, the oil typeused and (A minimum actual oilviscosity of 10 cSt in thebearings is always requried;bearing temp. to determine oilviscosity is approx. oiltemperature + 15K)Control oil pressure suction pressure + 8 bar (g)Lubricating oil pressuredifference between 1.3 and 4.5 bar Setting approx. 2.0 bar (g)After a mimimum of 15 minutesrunning time at an oiltemperature of approx. 50 oCMax. discharge temperature 170 °CMin. suction pressure 0.3 bar(a)Max. intermediate pressureMax. suction pressure 8.5 bar (a) 7 bar (a)Pdischarge - Psuction ≤ 25.0 bar (g) ≤ 19.0 bar (g)Superheat >0 KOil discharge - running in -filterFactory mounted; to be replaced after max. 100 running hours by “normal” oil discharge filterelementOil discharge filter Supplied loose; replacement for factory mounted running in filter0089288gbr_1130.10.2017 9