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Viessmann VITODENS 222-F Installation And Service Instructions Manual page 101

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Checking outputs (relay test)
Display
Explanation
19
Contacts P - S at plug aBJ for extension EA1 closed
20
Output A1 at extension AM1 enabled
21
Output A2 at extension AM1 enabled
Diagnosis and service scans
(cont.)
101

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Fs2b

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