Checking The Co 2 Content - Viessmann VITODENS 111-W Installation And Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps
Checking the CO
Note
Operate the appliance with uncontami-
nated combustion air to prevent operat-
ing faults and damage.
A
26
content
2
(cont.)
5. Transfer selected heating output:
Turn rotary selector "tw" fully clock-
wise for less than 2 s and then back
into the r.h. control range.
During the transfer, "-.-.-". will be dis-
played.
6. Shut down the boiler.
01. Connect a flue gas analyser at flue
gas port A on the boiler flue con-
nection.
02. Start the boiler and check for
leaks.
Danger
Escaping gas leads to a risk
of explosion.
Check gas equipment for
tightness.