Viessmann VITODENS 343-F WS4A Installation And Service Instructions Manual page 56

Commissioning, inspection, maintenance
Further details regarding the individual steps
Changing the slope and level
A Changing the slope
B Changing the level (vertical paral-
lel offset of the heating curve)
56
(cont.)
1. Slope:
Change with coding address "d3"
in code 1.
Setting range 2 to 35 (equals slope
0.2 to 3.5).
2. Level:
Change with coding address "d4"
in code 1.
Setting range -13 to +40 K.