MCS MH 500, User And Maintenance Book, Page: 14 / 34

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CLEANING COMBUSTION
CHAMBER:
IMPORTANT: This operation can be car-
ried out by contacting the authorised
technical support centre.
It is recommended to clean the combustion
^_ j
year or when required to avoid problems
regarding chimney draught and combustion.
The combustion chamber is cleaned through
heater.
Closely follow this sequence to perform
cleaning (keep the screws and washers with
care):
•••10.1.1. Remove the air ducting cone by
removing the screws which secure it to the
heater (Pic. 16).
•••10.1.2. Remove the plates which close the
inspection openings, by removing the screws
(Pic. 17).
•••10.1.3. Remove the gaskets installed and do
not reuse them. Use only new and original
gaskets (Pic. 18).
•••10.1.4. Spray high pressure water inside the
chamber through the inspection openings
(Pic. 19). When washing, move the nozzle
in various positions so the water reaches all
the slots of the combustion chamber.
•••10.1.5. Lift the combustion chamber from the
back to empty as much water as possible
from inside the chamber (this operation must
be carried out with the utmost attention to
avoid personal harm or damaging the heater)
(Pic. 20).
•••10.1.6. Reassemble the heater performing
the sequence of operations in the opposite
order, replacing the gaskets with original
spare parts.
BEFORE SWITCHING THE HEATER BACK
ON, MAKE SURE AS MUCH WATER AS
POSSIBLE HAS BEEN ELIMINATED FROM
INSIDE THE COMBUSTION CHAMBER TO
AVOID SERIOUS DAMAGE.
CLEANING THE FAN:
Use compressed air for routine cleaning of the
fan, blowing the air through the rear grille.
CLEANING THE BURNER:
IMPORTANT: This operation can be car-
ried out by contacting the authorised
technical support centre.
ˆ ^
clean the burner.
11. PREVENTIVE MAINTENANCE SCHEDULE
WARNING: BEFORE PERFORMING ANY MAINTENANCE OR REPAIRS, DISCONNECT
THE POWER CABLE AND MAKE SURE THAT THE HEATER IS COLD.
COMPONENT MAINTENANCE FREQUENCY MAINTENANCE PROCEDURE
Safety thermostat Yearly check and/or when required Contact the authorised technical
support centre
Electrode distance Yearly check and/or when required Contact the authorised technical
support centre
Nozzle Replace yearly and/or when
required Contact the authorised technical
support centre
Electrical system Yearly check and/or when required Contact the authorised technical
support centre
Fan Yearly cleaning and/or when
required Blow compressed air through the
rear grille
Motor Yearly check and/or when required Contact the authorised technical
support centre
Fuel pump Yearly check and/or when required Contact the authorised technical
support centre
Combustion
chamber Yearly check and/or when required Contact the authorised technical
support centre
Not
for
Reproduction