Viessmann FB2A Installation And Service Instructions For Contractors page 55

Further details regarding the individual steps
Changing the slope and level
90
A
+20
Outside temperature in °C
A Changing the slope
B Changing the level (vertical parallel
offset of the heating curve)
Extended menu:
1. å
2. "Heating"
3. Select a heating circuit: "HC1" or
"HC2".
4. "Heating curve"
5. "Slope" or "Level"
6. Select heating curve according to the
requirements of the system.
3.5
1.4
B
0.2
-20
Commissioning, inspection, maintenance
(cont.)
Adjusting the set room temperature
Standard room temperature
90
A
C
D
Example 1: Adjustment of the standard
room temperature from 20 to 26°C
A Boiler water temperature or flow
temperature in °C
B Outside temperature in °C
C Set room temperature in °C
D Heating circuit pump "OFF"
E Heating circuit pump "ON"
Adjustment of the standard room
temperature:
Operating instructions
-20
B
E
55