Viessmann VITOCAL 242-S Installation And Service Instructions Manual page 106

Parts lists, internal unit
Electrical equipment, internal unit
Pos. Component
0029 Cable harness, low voltage, for AVI PCB
0031 Fuses 6.3 A (slow) (set)
0036 Cylinder temperature sensor NTC 10 kΩ
0038 Return temperature sensor, solar circuit NTC 10 kΩ
106
(cont.)