EN • 21
ENGLISH
FRANCAIS
NEDERLANDS
ESP
AÑOL
IT
ALIANO
DEUTSCH
664Y2800.B
COMMISSIONING AND MAINTENANCE
DISASSEMBLING THE BURNER
- Close the inlet gas valve.
- Remove the top front panel of the boiler.
- Unplug the fan plug(s), the ignition cable, the gas valve control
and the ignition electrode earth.
- Loosen the 4 burner nuts using a ratchet wrench.
- Unscrew the three-way coupling on the gas pipe.
- In one unit, lift up the burner with the fan and the gas valve to
remove them from the exchanger. Be careful not to damage
the burner insulation in the exchanger.
- Check the condition of the insulation and the seals and replace
them if necessary before re-assembling the burner following
the same procedure but in the reverse order.
CLEANING THE HEAT EXCHANGER
- Remove the burner assembly as described above.
- Remove the burner gasket.
- Clean the combustion chamber using a vacuum cleaner.
- It could be necessary to clean the flue tubes by putting water
in the combustion room. After that operation, it is necessary
to clean the condensing trap.
- Check the burner insulation and the burner gasket; replace
the parts if necessary.
- Check the igniter, replace if necessary
- Reassemble the burner and check for leakages.
- Power up the appliance, set the boiler in full power mode and
recheck for leaks.
- Check the gas pressure and the CO
2
level as explained in
previous paragraf.
DISASSEMBLING AND CHECKING THE ELECTRODE
- Remove the ignition cable.
- Remove the two fixing screws.
- Remove the electrode earth but make sure the serrated
washer is fixed between the earth cable and the electrode
when re-assembling.
- Check the condition of the seals and replace them if necessary
before re-assembling the electrode following the same procedure
but in the reverse order.
X 4
3
5
3 - 4
3
HeatMaster
®
35 TC
HeatMaster
®
85 TC