59
4. Select the upper heating output:
Select
"Full load OFF"
. Then
"Full load ON"
appears and the burner operates at its upper heat-
ing output.
5. Ending output selection:
Press
ä
.
Checking the flue system for unrestricted flow and tightness
Checking the external LPG safety valve (if installed)
Matching the control unit to the heating system
The control unit must be matched to the system equip-
ment level.
■
To do this, select the relevant system scheme (see
the following diagrams).
■
Set the codes according to the accessories fitted:
Accessories installation and service instruc-
tions
Note
Various system components are recognised automati-
cally by the control unit and the relevant codes are
adjusted automatically.
For individual coding steps, see page 68.
System version 1
One heating circuit without mixer A1
3
1
2
wP
wQ
Fig. 52
1
Vitodens 242-F
2
Outside temperature sensor
3
Heating circuit without mixer A1
wP
Solar collectors
wQ
Collector temperature sensor
Commissioning, inspection, maintenance
Checking the combustion quality
(cont.)
5773 238 GB
