Check Dekamatik-Hk - Viessmann Vitodens 200 Start-Up/Service Instructions

Vitodens 200 WB2 Service
Check Extension Kit for Heating Circuit with Mixing Valve
Legend
A Rotational direction switch
B Power supply switch "8"

Check Dekamatik-HK

Check mixing valve motor
1. Select rotational direction of the mixing valve motor.
Switch setting I for boiler return from left (factory
default setting).
Switch setting II for boiler return from right.
2. Relay test
Switch power supply switch on the motor off and on
again. The unit will perform the following self-test:
Close mixing valve (150 sec)
Pump ON ( 10 sec)
Open mixing valve ( 10 sec)
Close mixing valve ( 10 sec)
After that normal control mode is resumed.
3. Observe the rotational direction of the mixing valve motor
during the automatic relay test of the extension kit.
Afterwards, position the mixing valve by hand in the
"Open" setting.
The supply temperature sensor must now measure
a higher temperature.
If the temperature is lower, either the rotational
direction of the motor is incorrect or the mixing valve
insert is incorrectly fitted.
Please reference Installation Instructions
of Mixing Valve Actuator.
With comfortrol menu driven progamming unit'
1. Check via Scan 2 on the programming unit whether
the connected expansion module is recognized.
Calling up Scan 2
Open the cover:
Menu option
  SYSTEM
  OPERATING STATUS "B"
  CONTINUE
Expansion module
The last-placed digit has the following meaning:
2____0 =Viessmann 2-wire BUS expansion module
not recognized
2____1 =Viessmann 2-wire BUS expansion module
is recognized
Dekamatik-HK
The second-placed digit from the lefthas the following
meaning:
_2____ =Extension kit for a heating circuit with
mixing valve or Dekamatik-HK1/-HK2
recognized
_3____ =Dekamatik-HK4 recognized
2. If the expansion module or the Dekamatik is not
recognized, check that they were installed correctly.
Note: A green LED will flash on the expansion module
if the data BUS is intact. If the LED is not lit,
the data line "X5.3"-"X5.4" may be incorrectly
connected. See wiring diagram in section
entitled "Additional Information".
Start-up and Service
(continued)
Button
"D"
"A" until "Scan 2" is displayed
23