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MODULE MAINTENANCE
To maintain the moduel in perfect working order, a yearly service should be performed by personnel
authorised by
DOMUSA TEKNIK
.
Module and flue maintenance
The most important aspects to be checked are as follows:
- The water pressure in the heating installation,
when the water is cold
, must be between 0.1
and 0.15 MPa (1 and 1.5 bar). If it is not between these values, it must be filled until they are
reached.
- The control and safety devices (thermostats, gas valve, etc.) must operate correctly.
The burner and the inside of the combustion chamber must be clean. Soft brushes or
compressed air are recommended for cleaning the module, to prevent damage.
Do not use
chemical products.
.
The expansion vessel must be full, in accordance with the specifications on the vessel plate.
Check the gas and water installations are completely sealed.
The flues must be free of any obstacles and have no leaks.
The gas flow must remain between the values indicated on the
Technical Data Sheet
.
.
The circulating pumps and mixer valves must not be blocked.
Cleaning the burner and combustion chamber
The module does not require any special maintenance. A
yearly cleaning procedure
at the end of
the heating season will be enough.
The combustion chamber and burner should not be cleaned
using chemical products or steel brushes.
After any cleaning operation has been carried out, it is
important to run several ignition cycles to check all the elements are operating correctly.
After checking the module is functioning correctly, ensure there are no leaks.
Draining the condensation water
The module condensation water drain outlet should not be altered in any way and it must be kept
free of obstructions. It is advisable to perform an annual cleaning procedure of the condensation
collection siphon.
If a neutralisation system is installed at the condensation drain outlet, it should undergo periodical
maintenance, in accordance with the manufacturer's instructions.
Cleaning products
Never use chemical products to clean the module. A plastic brush is enough, if the cleaning is
carried out annually.
The cleaning of the module and hydraulic circuit will have lasting effects if water with a hardness of
over 25ºF is treated previously. For softer water no treatment is required. In any case, a descaling
pump should be used to carry out the descaling process.
