Viessmann VITODENS 200-W Installation And Service Instructions Manual page 79

Checking outputs (relay test)
3. Select required actuator (output) with
lowing table):
The following actuators (relay outputs) can be controlled subject to system design:
Display
0
1
2
3
10
15
16
17
18
19
20
21
22
(cont.)
/ (see fol-
V v
Explanation
All actuators are off
Burner operated at minimum output; circulation pump is started
Burner operated at maximum output; circulation pump is started
Output sÖ active (boiler circuit pump)
Internal extension output enabled
Solar circuit pump output
Solar circuit pump output on solar control module SM1 switched to minimum speed
Solar circuit pump output on solar control module SM1 switched to maximum speed
Output on solar control module SM1 active
sS
Contact P - S at plug
aBJ
Output A1 at extension AM1 enabled
Output A2 at extension AM1 enabled
Output active (circulation pump for cylinder heating)
sA
4. Confirm selected actuator with OK.
The display shows the number for the activated
actuator and "ON".
on solar control module SM1 active
sF
of extension EA1 closed
Diagnosis and service scans
79