Combustion Chamber Sight Glass; Mounting The Combustion Chamber Sight Glass - Viessmann Vitocrossal 300 Installation Instructions For Contractors

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Mounting the burner

If the burner plate is not factory-fitted: Drill the burner

fixing holes in the burner flange. Cut out the burner

aperture with an oxy-acetylene torch.

Ø = Ø B -10

Fig. 26

Boiler door

Flame tube

Thermal insulation mat

In the case of different dimensions, adjust the cut-out

■

in the thermal insulation of the boiler door to the

flame tube diameter.

■

After mounting the burner, seal the annular gap

between the flame tube and the thermal insulation

block with thermal insulation mat

Combustion chamber sight glass

The sight glass casing with accessories is supplied

inside the combustion chamber.

(cont.)

Max. flame tube aperture:

Burner plate

Thermal insulation block

Note on fitting thermal insulation mat C

The hole in the mat needs to be 10 mm smaller than

the diameter of the flame tube ( 7

10 mm). The blue side of the mat has to face the com-

bustion chamber.

350 mm

= 7

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