Gaggia D90 Evolution Operating Instructions Manual

Also see for D90 Evolution: Specifications Use and maintenance

29ENGLISH6 - START UP1 Tap2 Hot Water Outlet Button D903 Hot Water Outlet Switch E904 Machine on/off indicator5 Gas on/off valve6 Main switch7 Right Vaporiser Tap8 Left Vaporiser Tap9 Cup-warmer switch10 Boiler pressure gauge11 Pump pressure gauge12 Boiler level indicator13 Right Vaporiser Pipe14 Left Vaporiser Pipe15 Hot Water Outlet Pipe16 Unit D90 Control Keyboard17 Unit E90 Control Keyboard18 Hot Water Outlet Indicator19 D90 Delivery Led20 E90 Delivery LedOnce the water, gas and electrical connections have been made,proceed to start up the machine.Open the mains water supply tap (A).Close the protection switch (D)Position the machine main switch (8) to position the machineon indicator will come on (3).The auto-levelling device will come into operation so that the waterreaches a normal level in the boiler (12). Also press lever of watersupply tap (1) for a faster operation.Position the main switch (6) to position for operation atnormal power or to position for operation at full power, therebypowering the resistances.Wait for the pressure to reach its operational pressure 1.1÷1.3 atmchecking the boiler pressure on the gauge (10).Should the machine fail to stabilize on the indicated values it isnecessary to calibrate the pressure switch as described in paragraph6.2.In the event of a machine featuring a gas heating system, it isnecessary to switch on the gas by operating the gas valve (4) afteroperating the main switch (6), keeping the piezoelectric switchpressed (5) until the gas remains on.Then check the pressure on the pump gauge (11) putting a unit intooperation with filter holder engaged filled with ground, dosed andpressed coffee in order to achieve an effective working pressure of8/9 atm.Should re-calibration of the pump pressure be necessary thisoperation should be undertaken as indicated in paragraph 6.3.The machine is now ready for use.6.1 LONG COFFEE GIGLEURThe machine is fitted with a gigleur ( 1 per unit) with a clearance of0.6 mm (Cod.26G0074/01).For greater coffee delivery speed, in the case of long coffees, no.2gigleurs are also included with the machine (complete with seals)with a clearance of 0.8 mm (Cod.26G0073/01).The gigleur is located in the exchanger supply fitting (1 per group).IMPORTANTDo not press the hot water delivery switch or button (2)before the correct working temperature of 1.1 atm isreached, as indicated on the boiler gauge (10).541212 1720181916107613141511839Fig.6.01Fig.6.02