Viessmann VITODENS 200 Start-Up And Service Instructions page 25

Steps
(continued)
I
nitial start-up
-
A + i
B
C D
I
Rotational direction switch
Power supply switch " "
27. Check extension kit for heating circuit with mixing valve
1. Check via Scan 1 on the
programming unit whether the
connected extension kit is
recognized.
Calling up Scan 1
4 5 6
3
7
Open the cover:
2 8
9
1
Menu option
0 10
4 5 6 → SYSTEM
3
7
→ OPERATING
S
2 8
9
1
STATUS
10
→ CONTINUE
2. If the extension kit is not recog-
nized, check the coding of the
heating system type (see page 49).
Check mixing valve motor
1. Select rotational direction of the
mixing valve motor.
H Switch setting I for boiler return
from left (factory default setting).
H Switch setting II for boiler return
from right.
2. Relay test
II
Switch power supply switch on the
motor off and on again. The unit will
perform the following self-test:
1
H Close mixing valve (150 sec)
0
H Pump ON
H Open mixing valve ( 10 sec)
H 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.
Initial Start-up and Service
Please note:
The third and fourth-placed digits
from the left have the following
meaning:
(__02__ = with burner control unit
(__12__)= additionally with Vitocom
(__03__ = with burner control unit
Button
"D"
(__13__)= additionally with Vitocom
"B"
"A" (__06__ = with burner control unit
until
"Scan 1"
is
displayed (__16__)= additionally with Vitocom
(__07__ = with burner control unit,
(__17__)= additionally with Vitocom
Please note:
The extension kit is only recog-
nized when connected via the
KM-BUS, not when connected via the
Viessmann 2-wire BUS.
Please note:
( 10 sec)
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.
Accessory
100
and variable speed heat
circuit pump
100
and extension kit for
heating circuit with mixing
valve
100
extension kit for heating
circuit with mixing valve
and variable speed heating
circuit pump
100
Please reference Installation
Instructions of Mixing Valve
Actuator.
25