Viessmann Vitotwin 300-W Installation And Service Instructions For Contractors page 149

Repairs
(cont.)
Replacing the thermocouples
1. Fit transport brackets to the Stirling
engine to prevent damage during
replacement (see page 42).
A
B
C
2. Mark new thermocouple A 120 mm
away from its tip.
Troubleshooting
A
149