Viessmann Vitocrossal 300 Installation Instructions For Contractors page 25

Hide thumbs Also See for Vitocrossal 300:

Table of Contents

Fitting the thermal insulation

Operation with burners (187 to 635 kW) without

ventilation option

Fig. 23

(cont.)

1. Insert sight glass twin connector

door.

2. Tightly seal the vent aperture on the sight glass

twin connector with the plug R

erwise there may be secondary ventilation and

condensate may form.

Danger

Leaks can result in a risk of poisoning

through escaping gas.

Seal in plug carefully.

into the boiler

supplied, oth-

¼ G

Table of Contents

Ct3b