Viessmann B2TA, Installation And Service Instructions For Contractors

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52
Reduced set room temperature
+20 14 5
90
-20
D E
A
C
B
Fig. 47 Example 2: Adjustment of the reduced set
room temperature from 5 °C to 14 °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"
Changing the reduced set room temperature
Operating instructions
Changing the slope and level
Individually adjustable for each heating circuit.
A
B
Boiler
water
or
flow temperature
in °C
90
+20 -20
Outside temperature in °C
3.5
1.4
0.2
Fig. 48
A
Changing the slope
B Changing the level (vertical parallel offset of the
heating curve)
Extended menu:
1.
å
2. "Heating"
3. Select heating circuit.
4.
"Heating curve"
5. "Slope" or "Level"
6. Select heating curve according to the system
requirements.
Connecting the control unit to the LON
The LON communication module must be plugged in.
Note
The data transfer via LON can take several minutes.
Example: Single boiler system with Vitotronic 200-
H and Vitocom 200
Set the LON subscriber numbers and further functions
via code 2 (see the following table).
Note
The same subscriber number must not be allocated
twice within the LON.
Only one Vitotronic may be programmed as fault
manager.
All coding addresses in the table are listed in the "General" group.
Boiler control unit
Vitotronic 200-H Vitotronic 200-H Vitocom
LON LON LON
Subscriber no. 1
Code "77:1" Subscriber no. 10
Code "77:10" Subscriber no. 11
Set code "77:11".
Subscriber no. 99
Control unit is fault manager.
Code "79:1" Control unit is not fault man-
ager.
Code "79:0" Control unit is not fault man-
ager.
Code "79:0" Device is fault man-
ager.
Commissioning, inspection, maintenance
Adjusting heating curves
(cont.)
5773 216 GB