Viessmann VITODENS 200-W WB2B Series Start-Up/Service Instructions page 31

Outdoor Reset Programming Unit
Heating curve adjustment
3.5
230/
110
+68/20
Outdoor temperature in ºF/ºC
Fig. 16 Changing the slope
230/
110
+40
-13
+68/20
Outdoor temperature in ºF/ºC
Fig. 17 Changing the shift
(continued)
1. To change the slope
Change with coding address "d3" in
coding level 1. Setting range 2 to 35
(equals slope 0.2 to 3.5).
1.4
0.2
-4/20
2. To change the shift
Change with coding address "d4" in
coding level 1. Setting range -13 to
+40 K.
1.4
-4/20
(continued)
Control Technology
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