Cleaning The Sight Glass In The Boiler Door - Viessmann VITOCROSSAL 300 Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps

Cleaning the sight glass in the boiler door

B
A
Closing the boiler door
1. Tighten the screws on the boiler door
evenly and diagonally. Torque of
20 Nm
Checking the thermal insulation
Check the thermal insulation fit and
realign if required.
Checking the water quality
Enter the amount of top-up water and the
total hardness of the feed and boiler
water into the following table.
For water quality requirements, see
page 32.
18
(cont.)
Check gaskets A and hose connection
B for leaks.
Danger
Leaks can result in a risk of poi-
soning through escaping flue
gas.
Check gaskets carefully.
2. Mount the gas supply pipe and check
for tightness.