1ª 10279 – E 11 - 2011
34
4.2. CONTROL POINTS
Heating element
Measured on the infusion board on connector
j12
Between pins 1 and 2 (black and green) shows 0 Vac when the heating element is
working. (Assuming the 10A fuse is OK)
Between pins 1 and 2 shows 220 Vac when the heating element is not working.
Infusion pump
Measured on the infusion board on connector
j14
Between pins 1 and 4 shows 200 Vac when the pump is working.
Mains water Electro-valve
Measured on the infusion board on connector
j14
Between pins 2 and 4 shows 220 Vac when the electro-valve is activated.
Infusion group motor
Measured on the infusion board on connector
j15
Between pins 1 and 3 shows 220 Vac when the group is working.
Grinder
Measured on the infusion board on connector
j15
Between pins 1 and 5 shows 220 Vac when it is working.
Transformer
Measured on the PMC board on connector
J11
Pines 1 and 2 = 220 Vac (black)
Pines 4 and 5 = 24 Vac (blue)
Infusion electro-valve
Measured on the infusion board on connector
J9
Between pins 7 and 8 shows 25 Vdc when the electro-valve is activated.
Flow meter
Measured on the infusion board on connector
J10
.
Pin 3 corresponds to +, pin 4 to earth and pin 2 to signal.
When the it spins, the multi-meter shows 2.5 Vdc measured between the pines 2 and 4.
Float level
Measured on the infusion board on connector
J10
.
Between pins 1 and 4 shows 0 Vdc when the cold water deposit is full.
