Special Maintenance; Control Unit Legend - Carimali ETA BETA – LM Installation, Gebrauch, Wartung

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)
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.
Eta Beta 1grup control unit legend
Table connectors:
CN1
grup 1
Fuse: FU1 primary- trasformer
Eta Beta 2 grups.
Table connectors:
CN1
Serial trasmission
Fuse: FU1 comun load
Eta Beta 3 grups.
Table connectors:
CN1
Serial trasmission
Fuse: FU1 comun load
lb.00056.30

SPECIAL MAINTENANCE

CONTROL UNIT LEGEND

CN3
on / off– tea push key Valves- pump
CN2 CN4
Turbine and level grup 1
FU2
CN2 CN3
Turbine and level grup 1
FU2
CN4 CN5
Turbine and level
CN5
grup 2 On/off- tea push key Valves- pump
primary- trasformer
CN4 CN5
grup 2 grup 3
primary- trasformer
Pag. 14
CN6
Serial trasmission
CN6 CN7
CN6
ON/OFF- tea push key Valves- pump
CN7
26/05/10