Viessmann Vitocrossal 200 Service Instructions Manual page 11

Further details regarding the individual steps
4. Undo fitting A.
5. Only for 246 and 311 kW: Pull
compensation hose G from the
gas combination valve.
6. Release the gas combination
valve from flange E.
Initial start-up, inspection, maintenance
(cont.)
7. Remove restrictor C with rubber
cork gasket D.
8. Secure the gas combination valve
(without restrictor C and without
rubber cork gasket D, but includ-
ing O ring B) at flange E;
replace the factory fitted screws
M 5 × 16 with M 5 × 12 (in the
pack).
9. Secure and tighten fitting A.
10. Only for 246 and 311 kW: Push
compensation hose G onto the
gas combination valve.
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
explosions.
Check all fittings for sound-
ness.
11