Viessmann VITOCROSSAL 300 Service Instructions Manual page 14

Gas condensing boiler

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Table of Contents

Commissioning, inspection, maintenance

Further details regarding the individual steps

Ø = Ø B -10

A Boiler door

B Flame tube

C Thermal insulation mat

Check the thermal insulation mat at the

flame tube. The blue side of the thermal

insulation mat has to face the combus-

tion chamber. It must be in close contact

with the flame tube.

D Burner plate

E Thermal insulation block

(cont.)

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