Viessmann Vitodens 242-F Installation And Service Instructions Manual page 92

Diagnosis and service scans
Checking outputs (actuator test)
Display
Mixer HC3
Mixer HC3
Outp. int. exten. H1
AM1 output 1
AM1 output 2
EA1 output 1
Solar circuit pump
Solar circ pmp min
Solar circ pmp max
SM1 output 22
92
(cont.)
Explanation
Open "Mixer open" output enabled (extension to heating circuit with mixer)
Close "Mixer close" output enabled (extension to heating circuit with mixer)
ON Output at internal extension enabled
ON Output A1 at extension AM1 enabled
ON Output A2 at extension AM1 enabled
ON Contact P - S at plug
ON Solar circuit pump output
ON Solar circuit pump output at solar control module SM1 switched to min-
imum speed
ON Solar circuit pump output at solar control module SM1 switched to
maximum speed
ON Output
sS
of extension EA1 closed
aBJ
on solar control module SM1 active
sF
on solar control module SM1 enabled (if installed)