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12
Water Circuit Semi-automatic 2 group.
Key
A.
Boiler
B.
Heat exchanger
1.
Water circuit feeding pipe
2.
Pump
3.
Boiler water Filling
Solenoid valve
4.
Non-return Valve
5.
Expansion valve
6.
Water Discharge Vessel
7.
Coffee delivery group
8.
Pump/boiler
9.
Steam valve
10.
Water valve
11.
Relief valve
12.
Delivery group
solenoid-valve
13.
Pressure switch
14.
Hot water delivery solenoid valve
Key
A.
Boiler (ex 2 groups)
B.
Heat exchanger
1.
Water circuit feeding pipe
2.
Pump
3.
Boiler water filling
Solenoid valve
4.
Non-return valve
5.
Expansion valve
6.
Water discharge vessel
7.
Coffee delivery group
8.
Pump/boiler pressure guage
9.
Steam valve
10.
Boiler water level indicator
11.
Relief valve
12.
Delivery group
solenoid-valve.
13.
Pressure switch
14.
Hot water delivery solenoid valve
15.
Volumetric counter
(flow-rate sensor.)
A
B
1
2
3
4 5
6
7
8
9
9
10
11
12
13
14
14
A
B
1
2
3
4 5
6
7
8
9
9
10
11
12
13
15
15
Water circuit, Automatic 2 Group
Electric Diagram
The machine is connected to the electric mains by a supply cable.
As shown on the electric diagram there are two circuits:
- A feeding circuit for electric components (solenoid valves,
pump motor, electronic control panel.
- A feeding circuit for the heating element.
