COSMOGAS AGUAPLUS 100, Инструкция по установке, эксплуатации и обслуживанию, Страница: 55 / 80

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AGUAPLUS
COSMOGAS
15.1 - General warnings
This section must be brought to the installer’s attention,
highlighting the tasks to maintain proper system operation;
The installer is also obligated to inform the user that failure
to take care of and service this appliance could cause
malfunctions.
It is advisable to follow scheduled annual system
maintenance for the following reasons:
- to keep appliance output high, thereby saving fuel;
- to keep a high level of working safety;
- to keep the level of fuel environmental compatibility high;
WARNING!!! The appliance must only be
serviced by a competant person.
WARNING!!! Before any maintenance
operations, disconnect the appliance from the electrical
mains using the specific switch located nearby.
WARNING!!! Close the gas supply isolation
valve before performing and maintenance operations.
The box below shows the operations to do at every
maintenance session.
15 - MAINTENANCE
15.1.1 - Gas leak check
1.- Make sure there are no gas leaks in the system;
2.- Check for gas leaks using a leak detector (with bubbles
or the like) or an equivalent system, thoroughly checking
the entire gas route from the counter to the appliance.
WARNING!!! Do not carry out these checks in
the presence of naked flames.
15.1.2 - Making sure the air intake and flue
exhaust ducts are in good conditions
1. - Check whether the air intake and flue exhaust ducts
have obstructions, signs of corrosion, physical damage,
water spots or signs of rust.
2. - Make sure the externally assembled intake grids and
flue exhaust outlets have no residue and are clean.
15.1.3 - Checking the system water
pressure
1.- Make sure the system is full of water and under
pressure as shown in section 16 technical features.
2.- Make sure there are no leaks in the hydraulic
connections.
15.1.4 - Checking the ignition and
detection electrodes
1.- Remove the burner fan unit (as shown in section 15.3).
2.- Clean any operating material build-up from the
electrodes.
3.- Make sure the electrodes are in the correct position as
shown in section 15.5.
15.1.5 - Checking the magnesium anode
The magnesium anode protects the boiler from corrosion.
The life of the anode depends on the temperature, on the
quantity and, above all, on the water chemistry used.
WARNING!!! Do not remove the anode from the
boiler except for inspection and/or replacement. Using
the appliance without the magnesium anode installed
will reduce its service life.
The anode is to be checked at least once a year and replaced
when more than 7 cm of iron core are uncovered. If necessary,
increase the frequency of the checks according to its usage.
Proceed as follows to check or replace the anode:
1.- Disconnect the appliance from the electricity and gas
supply;
2.- Make sure the temperature of the water inside the
appliance has cooled down;
3.- Remove the casing as described in section 15.2;
4.- Close the water shut-off valves to isolate the appliance
from the system pressure;
5.- Empty the appliance through valve “2” in figure 3-3;
6.- Disassemble the anode, after checking its status, and
replace it if necessary or reassemble it being careful with
its gasket;
7.- Having done this, restore the initial status of the
appliance and restart it.
MAINTENANCE PROTOCOL
- Make sure there are no gas leaks
(Follow section 15.1.1.);
- Make sure the air intake and flue exhaust system is in good conditions
(Follow section 15.1.2);
- Make sure the system water pressure is correct
(Follow section 15.1.3.);
- Check the ignition and detection electrodes
(Follow section 15.1.4.);
Check the status of the anode
(Follow section 15.1.5.);
- Clean the burner and the flue gas side main exchanger and make sure
the heat insulators are in good condition
(Follow section 15.4.);
- Clean the air intake filter
(Follow section 15.6.);
- Clean the condensate exhaust system
(Follow section 15.7.);
- Check appliance performance
(Follow section 15.13.).