Viessmann Vitomax HS M73 Operating And Service Instructions page 38

Commissioning, inspection, maintenance
Checking the thermal insulation components and gaskets
A
B
A
Fig. 12
Inserting turbulators (if installed) and closing boiler door(s)
A
B
Fig. 13
38
A
B
A
A A
Check gaskets A and thermal insulation sections
replace if necessary.
1. Fully insert turbulators
bulator extractor B .
2. Close the boiler door(s).
3. Tighten fittings evenly with approx. 20 Nm, until the
boiler doors are flue gas-tight all the way round.
Danger
Leaks can result in poisoning through escap-
ing gas.
Check the boiler door gasket for correct
seating and realign if necessary.
A
A B A
B
into the 3rd flue. Use tur-
A
,