Viessmann VITODENS 200 Start-Up/Service Instructions page 49

Vitodens 200 WB2 Service
Control Unit for Weather-Responsive Operation
Coding in the as delivered
condition Address: value
Boiler
038:040
042:075
102:075
108:000
Function mode
Minimum flow temp. in
heating mode
Maximum boiler water
temp. in heating mode
Set boiler water
temperature for external
demand 75°C
Signal external blocking
enabled:
see the following table
with programming unit
Calling Up Coding Level 2
Note: For systems with wall mounting fixtures, the
programming unit must be plugged into the control
unit, if coding is to be carried out at coding level 2.
1. Calling up the coding level 1
Simultaneously press the red key "w" and the blue
key "M".
Hold the keys down until after approx. 5 seconds
"01:00" is displayed.
2. Calling up the coding level 2
Simultaneously press the red key "p" and the blue
key "r".
Hold both keys down until after approx. 5 seconds,
the display changes (e. g. to "o:OOO").
3. Selecting the coding address
Press key "u" and turn rotary selector "G"
clockwise, until the required coding address is
displayed.
4. Changing the coding address
Press key "1-7" and turn the rotary selector "G"
until the figure of the selected value appears.
5. Terminating coding
Press the red key "r".
Code change Possible change
Address: value
038:020
to
038:127
042:020 Max. possible boiler temperature 82°C
to
042:127
102:000 Setting range of the set boiler water
to temp. 0 to 127°C (max. possible
102:127 boiler water temp. 82°C)
108:001 Signal external blocking enabled:
to see the following table
108:007
Additional Information
(continued)
--
49