Installing The Combustion Chamber Sight Glass; Adjust Burner; Commissioning And Adjustment - Viessmann vitocrossal 300 Installation Instructions Manual

Installing the combustion chamber sight glass

Install the combustion chamber sight
glass. Connect the sight glass with the
pressure-jet part of the burner (test port
for "static burner pressure") using the
plastic hose supplied.

Adjust burner

For burner adjustments, see the
separate burner documentation.
Note
Fully open the rotary damper in the flue
outlet when adjusting the burner.
Service instructions
Adjust the highest gas throughput of the
burner to the rated boiler output.

Commissioning and adjustment

For commissioning, see the serv-
ice instructions for the boiler, the
burner and the boiler control
unit.
When the rotary damper is fully open.
*1
Details refer to T /T
*2
V R
Note
Do not operate the boiler beyond its
rated output.
Rated output
kW
787
978
50/30 °C.
Hot gas pressure
*1
drop
*2 Pa
300
330
mbar
3.0
3.3
25