3A And 3B Boiler Temperature Sensor Description - Viessmann Vitocrossal 200 CM2 500 Service Instructions Manual

Gas condensing boiler with cylinder burner
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Commissioning, Inspection, Maintenance
Vitocrossal 200, CM2 400, 500 and 620 Service
Steps – Commissioning, Inspection and Maintenance
(continued)

3A and 3B boiler temperature sensor description

3A sensor (NTC 10k ) terminals 1 & 2
3B sensor (NTC 20k ) terminals 3 & 4
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