Closing The Boiler Door - Viessmann Vitocrossal 200 Service Instructions For Contractors

Commissioning, inspection, maintenance

Closing the boiler door

7x
Fig. 26
1. If the burner has been removed, hook the burner
onto the hinge bracket and secure it with a split
pin.
!
Please note
Mechanical damage to delicate components
will impair the burner function.
Carefully insert the burner into the combus-
tion chamber. Do not damage the burner
gauze assembly, electrodes or insulation
block.
2. Close the burner. Tighten the screws diagonally.
Torque: 18 Nm
Danger
Leaks from the boiler door can result in poi-
soning through escaping gas.
Check the boiler door for flue gas tightness.
For example with inspection mirror, gas sen-
sor or thermal image camera.
In the case of leaks, tighten crosswise to 30 Nm.
28
3.
1.
18 Nm
2.
3. To ensure that the boiler door closes tightly, adjust
the clearance between the front panel and hinge
bracket to 16 mm ± 0.5 mm. Correct if necessary
using the 4 nuts.
4. Check flue gas tightness again.
5. If necessary, tighten the screws in the boiler door
crosswise to a torque of approx. 18 Nm.
In the case of leaks, tighten crosswise to 30 Nm.