54
5784 568 - 13
Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service
Check and Adjust Ignition and Ionization Electrodes
1. Check ignition and ionization electrode block for wear,
contamination, warping or cracked insulation.
2. Clean electrodes with a small brush or emery paper.
3. Check clearances. If clearances are not within
specification or the electrodes are damaged, replace
electrode block and gasket and align. Tighten
fastening screws for the electrodes to a torque of
40 lb.in (4.5 Nm) using a calibrated torque wrench.
4. Reinstall grounding wire.
Start-up and Maintenance
IMPORTANT
1. Check the siphon to ensure unimpeded drainage
of
condensate.
2. Remove all hoses from siphon
A
.
3. Release locking tabs at opening
B
from underneath
and remove siphon
A
upwards.
4. Clean siphon
A
and reinstall.
5. Refit all hoses. Secure drain hose with cable ties.
6. Fill the siphon
A
with water by pouring 10 fl. oz.
(0.3L) of water into the combustion chamber.
If the condensate does not drain freely, condensate will
accumulate in bottom part of boiler resulting in a burner
shut-down (fault message F4). The combustion chamber
refractory will also become wet at the bottom. Do not
restart the boiler immediately with a wet combustion
chamber refractory. This will damage the refractory.
Either dry the refractory (i.e. using a hair dryer) or replace it.
Installation Instructions Neutralization Unit
(if applicable)
Legend
A
Ignition ionization electrode
B
Ground
Check Condensate Drain and Clean Siphon (P-trap)
Start-up, Inspection and Maintenance
