Installing The Burner; Checking The Neutralising System (If Installed) - Viessmann VITODENS 100-W Installation And Service Instructions Manual

Commissioning, inspection, maintenance

Installing the burner

4x
F
D
C
B
A
Fig. 26
1. Insert the burner. Tighten screws
Tighten screws as tightly as necessary and ensure
that the components are undamaged and are func-
tioning correctly throughout service life.
Observe torque settings if a torque wrench is avail-
able.
Torque: 6.5 Nm
2. Fit gas supply pipe
E
Tighten screws as tightly as necessary and ensure
that the components are undamaged and are func-
tioning correctly throughout service life.
Observe torque settings if a torque wrench is avail-
able.
Check for gas tightness to BSI 6891.
Torque: 30 Nm

Checking the neutralising system (if installed)

38
E
diagonally.
F
with a new gasket.
3. Check the gas connections for leaks.
Danger
Escaping gas leads to a risk of explosion.
Check all fittings for gas tightness. In the
case of wall mounted appliances, also check
the gas shut-off valve fitting on the under-
side.
4. Connect the cables/leads:
■ Fan motor A (2 plugs)
■ Ionisation electrode
■ Ignition unit
C
Earth
■ D
B