Check Co 2 Setting - Viessmann Vitodens 200 Start-Up/Service Instructions

Vitodens 200 WB2 Service
Check CO Setting
2
1. Connect flue gas analyzer to boiler vent pipe adaptor
A ("Flue gas" measurement opening).
2. Open the gas shutoff valve and start up the boiler.
3. Trigger a call for heat by adjusting the setpoint value.
IMPORTANT
Do not use the emissions test switch "S" to trigger
a call for heat.
Control unit type
Control unit for weather-
compensated mode with
standard programming unit
Control unit for weather-
compensated mode with
menu-guided Comfortrol
programming unit
4. Select the lower rated
thermal load and check
the C0 content
2
 SYSTEM "D"
 INSTALLER
SETUP "C"
 CODE PLS "B-C-C-B"
 DIAGNOSIS "A"
 RELAY TEST "A"
With menu item
CONTINUE " A"
up to code
10: MODULATION
<ST.90> CLOSED BURNER
<ST.41> ON
The Vitodens 200 boiler is factory preset for operation
with natural gas or propane. It is recommended that a
CO check be performed at the boiler vent pipe adaptor
2
as part of the initial start-up/maintenance procedure.
IMPORTANT
The MatriX burner of the Vitodens 200 is preset for the
entire gas group. No adjustment or readjustment of the
burner is required.
Depending on the gas type, the CO
range of:
6.6 to 10.0% for natural gas
approx. 10.0% for LP
The CO value measured must be compared with the
2
above CO value ranges of the individual gas type.
2
If the CO value measured lies more than 1% outside the
2
stated range for NG, or 0.5% outside the stated range
for LP, perform the following steps:
Check that correct orifice was used (see subsection
entitled "Check orifice size" on page 14 and section
"Technical Data" on page 44 of this manual).
Check the venting system for leaks (see subsection
entitled "Check venting system for leaks" on page 15
of this manual).
5. Select the upper rated
thermal load and check
the C0 content If value
2
deviates by more than
1%, replace burner
With menu item
CONTINUE "A" up to code
11: MODULATION
<ST.90> OPEN BURNER
<ST.41> ON
Start-up and Service
value lies within the
2
6. Terminate the setting
mode
• Select the required
heating program.
• Set rotary selector G
to the required value.
• Enter actual values into
the service report.
• Close the test port.
• Close the programming
unit.
• Enter actual values into
the service report.
• Close the test port.
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