Unical TERNOx 2S, Инструкции по установке, использованию и обслуживанию

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IMPORTANT NOTE
Before opening the furnace door, it is necessary
to take the following safety measures:
- Close the fuel supply (diesel oil or gas) to the
burner.
- Cool the boiler off by having water circulate
and then disconnect electrical power.
- Place a sign on the boiler with the following
text: DO NOT USE, BOILER MAINTENANCE
UNDERWAY, OUT OF SERVICE.
Routine maintenance is essential in the in-
terest of the safety, efficiency and durability
of the appliance.
All maintenance must be carried out by qual-
ified personnel.
Yearly maintenance of the appliance is man-
datory in compliance with Laws in force.
Failure to perform Inspections and Main-
tenance can entail material and personal
damage.
All cleaning and maintenance operations
must be preceded by closing the fuel supply,
after having disconnected electricity.
In order to make the most of the boiler,
you should properly clean the combustion
chamber, smoke pipes and smoke chamber.
Inspections help to determine the actual status of
the appliance and to compare it with the nominal
status. This is done through measuring, controls
and observation.
Maintenance is required to eliminate any differenc-
es between the actual status and the nominal sta-
tus. This is normally done by cleaning, setting and
replacing individual components subject to wear.
Maintenance intervals and their extent are deter-
mined by a specialist based on the status of the
appliance ascertained through inspection.
4
INSPECTIONS AND
MAINTENANCE
Routine maintenance
Maintenance must be established based on the fuel used, the
number of ignitions, the features of the system, etc. Therefore it
is not possible to establish beforehand the frequency of main-
tenance.
The following cleaning intervals are recommended depending
on the type of fuel:
- Gas-fired boilers: once a year.
- Diesel oil-fired boilers: twice a year.
- Fuel oil boilers: every 300 hours of operation.
In any case, local standards regarding maintenance must be
respected.
During routine maintenance operations, the tube bundle and
furnace must be brushed.
Remove deposits built up in the flue gas casing by opening the
inspection doors.
For more energetic actions, remove the rear smoke chamber
and replace the flue gas gasket if worn. Check that the conden-
sation discharge is not obstructed.
Check that the control and measurement devices serving the
generator work properly. On this occasion, the amount of recir-
culation water used must be detected. After having analysed
the water, perform preventive descaling.
Calcium and magnesium salts dissolved in the water with re-
peated top ups give rise to deposits in the boiler and cause the
sheet-metal to overheat, with possible damage which cannot
be attributed to the materials or manufacturing, and therefore is
not covered by warranty.
After having performed maintenance and cleaning operations
and subsequent ignition, check the seals of the door and of the
smoke chamber. If any combustion products leak, replace the
relative gaskets.
The operations carried out must be written in the boiler room
booklet.
Extraordinary maintenance
Extraordinary maintenance at end of season or for long idle
periods.
All the operations described in the previous chapter must be
carried out, plus:
- After cleaning the flue gas circuit, pass a rag soaked with a
solution diluted with caustic soda. After leaving it to dry, re-
pass all the surfaces with a rag soaked in oil.
- It is recommended to place hygroscopic substances inside
the furnace (quick lime, silicon gel in small containers) and to
close it hermetically so that no air enters.
- Do not empty the system and the boiler.
- Protect screws, nuts and pins of the door with graphite
grease.
The operations carried out must be written in the boiler room
booklet.