Checking The Flue System For Unrestricted Flow And Tightness; Checking The External Lpg Safety Valve (If Installed); Matching The Control Unit To The Heating System - Viessmann Vitodens 200-W Series Installation And Service Instructions Manual

Checking combustion quality
A
Fig. 30
1. Connect a flue gas analyser at flue gas port
the boiler flue connection.
2. Open the gas shut-off valve, start the boiler and
create a heat demand.
Select higher/lower heating output
Weather-compensated control unit
Service menu
1. Press OK and simultaneously for approx. 4 s.
å
2. "Actuator test"
3. Select the lower heating output:
Select "Base load OFF". Then "Base load ON" ap-
pears and the burner operates at its lower heating
output.
4. Select the upper heating output:
Select "Full load OFF". Then "Full load ON" ap-
pears and the burner operates at its upper heating
output.
5. Ending output selection:
Press .
ä

Checking the flue system for unrestricted flow and tightness

Checking the external LPG safety valve (if installed)

Matching the control unit to the heating system

The control unit must be matched to the equipment
level of the system. Various system components are
recognised automatically by the control unit and the
relevant codes are adjusted automatically.
Commissioning, inspection, maintenance
(cont.)
3. Set the lower heating output (see page 35).
4. Check the CO
deviate from the aforementioned ranges by more
than 1 %, implement steps on page 34.
5. Enter actual values into the report.
6. Set the upper heating output (see page 35).
7. Check the CO
deviate from the aforementioned ranges by more
than 1 %, implement steps on page 34.
A on
8. After testing, press OK.
9. Enter actual values into the report.
Constant temperature control unit
Service menu
1. Press OK and
2. Select " " with
The display shows "I" and "ON" flashes.
3. Select the lower heating output:
Press OK, "ON" will be displayed constantly.
4. Select the upper heating output:
Press .
ä
5. Select "2" with
6. Press OK, "ON" will be displayed constantly.
7. Ending output selection:
Press .
ä
For the selection of an appropriate scheme, see the
■
following diagrams.
For individual coding steps, see page 45.
■
content. Should the actual value
2
content. Should the actual value
2
simultaneously for approx. 4 s.
å
and confirm with OK.
Ú
; "ON" flashes.
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35