lb.00056.30 Pag. 14 26/05/10
8) Non-return valve.
The "2" non-return valve (see hydraulic diagram) is installed between the "EC" loading solenoid valve and the boiler, and has the
following function:
During the loading phase it opens by means of the water pressure, letting the water enter into the boiler.
Once the loading phase is over, it closes preventing the water in the steam boiler from returning to the water supply network.
9) Milker Setting.
The machine has a control (RA) which sets the quantity of air needed for whisking milk.
Turn the ring nut clockwise for denser foam (small bubbles), or turn it anticlockwise for more voluminous foam (large bubbles)
(see diagram)
SPECIAL MAINTENANCE
Routine maintenance must be carried out daily by authorised staff as specified in the specific chapters of instructions of the machine.
Cleaning of the coffee outlet by means of the provided special brush is part of the daily maintenance.
Special maintenance must be carried out periodically by the CARIMALI SPA authorised service centre in the following way:
Replace filter holder gasket every 3-6 months
Replace the steam-water valve gasket every 6 months
Replace the steam nozzle joint gasket every 6-12 months
To reach the pump, the pressure-switch, the boiler heater, and the dilatation valve, remove the cup warming cover and the right side of
the machine.
To reach the groups solenoid valves, flowmeter, and exchanger, remove the cup warming cover.
To reach the PTC element, which heats the coffee groups, remove the cover at the bottom of the groups.
To reach the control unit, remove the cup warming cover and the left side of the machine.
CONTROL UNIT LEGEND
Eta Beta 1grup control unit legend
Table connectors:
CN1 CN3 CN4 CN5 CN6
grup 1 on / off– tea push key Valves- pump Turbine and level Serial trasmission
Fuse: FU1 primary- trasformer
Eta Beta 2 grups.
Table connectors:
CN1 CN2 CN4 CN5 CN6 CN7
Serial trasmission Turbine and level grup 1 grup 2 On/off- tea push key
Valves- pump
Fuse: FU1 comun load FU2 primary- trasformer
Eta Beta 3 grups.
Table connectors:
CN1 CN2 CN3 CN4 CN5 CN6 CN7
Serial trasmission Turbine and level
grup 1 grup 2 grup 3 ON/OFF- tea push key Valves- pump
Fuse: FU1 comun load FU2 primary- trasformer
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