Philips Saeco Royal HD8838, Service Manual

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SYNTIA CAPPUCCINO 04 OPERATING LOGIC
Saeco International Group Page / 08
An NTC is used as a temperature sensor, which reduces the resistors consumption, in the event
of overheating.
The electronic system detects the actual boiler temperature from the drop in voltage and
adjusts it accordingly.
Resistor values and corresponding temperatures: see table
4.6. Temperature sensor (adjustment)
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
4.5. Single microswitch
The gearmotor is activated by a direct current
motor that acts on the smaller double toothed
wheel via a worm screw. The unit is mounted
on the axle of the large toothed wheel and
when a coffee is requested, it moves from the
idle position to the dispensing position to then
return to the idle position.
- Idle position: 1
- Dispensing position: 2
2
1
04