Checking The Co - Viessmann Vitodens 100 WB1A Installation And Service Instructions Manual

Commissioning and testing

Checking the CO

Vitodens100 is factory-set for natural gas.
During commissioning or maintenance, the CO
boiler flue adaptor testpoint. Checking CO
Subject to the Wobbe index, the CO
10.5%
If the actual CO value deviates from the stated ranges by more than 1%, check
2
the balanced flue system for leaks.
(cont.)
8. Open the gas shut-off valve and
settings
2
levels is not a requirement.
2
content fluctuates between 7.4% and
2
1. Connect a flue gas analyser at flue
2. Open the gas shut-off valve, com-
start the boiler.
Danger
Gas escaping from the test
nipple leads to a risk of
explosion.
Check test nipple A for
soundness.
setting can be measured at the
2
gas connector A on the flue outlet.
mission the boiler and create a heat
demand.
Installation
53