Philips 2000 PURO/VAPORE, Service Manual

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PHI 2000 PURO/VAPORE 04 OPERATING LOGIC
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Temperature sensor
An NTC is used as a temperature sensor; in the event of overheating this reduces boiler element
power consumption.
The electronic system detects the current boiler temperature from the drop in voltage and ad-
justs it accordingly.
Resistor values: see table
Temp. (°C) R nom (kΩ) ΔR (+/- %)
20 61,465 8,6
50 17,599 5,9
75 7,214 4,1
80 6,121 3,7
85 5,213 3,4
90 4,459 3,1
100 3,3 2,5
125 1,653 3,9
150 0,893 5,1
The gear motor is powered by a direct current
motor that engages with the smaller double
toothed wheel using a worm screw. The unit
is mounted on the axle of the large gear wheel
and when a coffee is requested, it moves from
the home position to the dispensing position,
and then back to the home position again.
- Home position: 1
- Dispensing position: 2
2
1
4.4. Single microswitch
4.5. Temperature sensor (adjustment)