Viessmann VITOCROSSAL 200 Instructions Manual page 10

Commissioning, inspection, maintenance
Further details regarding the individual steps
05. Remove the venturi mixer tube H
from the gas fan.
Pull off the compensation line E
when operating the boiler in bal-
anced flue mode.
06. Release the gas train from flange
G.
07. Remove restrictor C with gasket
D from venturi mixer tube H.
08. Secure the gas train (without restric-
tor C and without gasket D, but
including O-ring B) at flange G.
09. Secure venturi mixer tube H at the
gas fan.
Push compensation line E onto the
mixer tube when operating the
boiler in balanced flue mode.
10
(cont.)
10. Secure and tighten fitting A.
11. Affix enclosed label "Adjusted to ..."
F above the existing label.
12. Start the burner (see page 7).
Danger
Escaping gas leads to a risk of
explosion.
Check all fittings for gas tight-
ness.
!
Please note
The use of leak detection spray
can result in incorrect functions.
Leak detection spray must not
come into contact with electrical
contacts.
Conversion for 115 to 311 kW
01. Close the gas shut-off valve.
02. Switch OFF the control unit ON/OFF
switch.
03. Switch OFF the main isolator (out-
side the installation room) or the
power supply and prevent unauthor-
ised reconnection.