1. Press K and d simultaneously
for approx. 2 s.
Relay test is activated.
2. Control relay outputs with a and
b.
3. Press d.
Relay test is completed.
Subject to the actual equipment level, the following relay outputs can be con-
trolled:
Display Explanation
Burner st 1 ON Burner stage 1
Burner st 1 + 2 ON Burner stage 2
Heating valve Diverter valve set to heating mode
Valve central pos. Diverter valve in central position (filling)
DHW valve Diverter valve set to DHW mode
Int. pump ON Int. pump/output 20 ON
Mixer CLOSE Mixer extension
Mixer OPEN Mixer extension
Ht. circ. pump M2 ON Mixer extension
Output int. Internal extension
Heat. circ. pump A1 ON Ext. extension
Cylinder pump ON Ext. extension
DHW circ. pump ON Ext. extension
Central fault ON Ext. extension
Solar circuit pump ON Vitosolic
Scanning operating conditions and sensors
1. In case of two heating circuits –
select the relevant one:
&
Press.
&
"1r" flashes on the display.
&
Select heating circuit A1 (heating
circuit without mixer):
&
Press.
&
Select heating circuit with mixer
M2:
– – Press.
– – "2r" flashes on the display.
– – Press d.
2. Press c.
3. Select the required operating con-
dition scan with a or b.
4. Press c.
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