7
1
60T - 280T
COSMOGAS
17 - MAINTENANCE
Figure 17-8 - Air intake filter disassembly
B
A
020010.01.018
17.6 - Cleaning the air intake filter
The air filter must be cleaned for the appliance to work
properly. Refer to figure 17-8 and proceed as follows:
1.- access the inner components of the appliance by
following section 17.2;
2.- slide out the filter, part “A”, as shown in the figure;
3.- clean the filter with compressed area until the surface is
cleaned;
4.- reassemble the filter and the appliance casing.
17.7 - Condensate drain system
maintenance and cleaning
During appliance maintenance, the condensate drain pipe (part
“5” in figures 3-3, 3-5 and 3-7) must be disassembled and any
residue cleaned. Reassemble the clean pipe and
restore the liquid level in the siphon as per section 15.1.2
.
Check the pH level every three years for the first year. To
run the test, you can use specific litmus test strips or a
specific electronic instrument that allows for more accurate
measurement (access the box via plug “E” in figure 12-1). The
subsequent frequency of these checks can be reduced to every
six months or year, depending on the local standards in force.
The neutralising content of the box must be replaced when
the pH level drops below the level required by the standards
in force. The allowed acidity level goes from pH 5,5 to 9,5.
To replace the neutraliser, proceed as follows:
1. Follow what is shown in section 17.2 to remove covering
“E” in figure 17-1;
2. Extract box “A” (figure 17-9);
ATTENTION !!! When removing the box, take care
to tilt it in order to prevent the liquid from spilling, which
could cause damage.
3. Open cover “C” (figure 17-9) upwards;
4. Make sure the box is in good condition;
5. Make sure the neutralising material is in good condition
and, if necessary, add or replace it;
6. Fill it with fresh water until the water begins to flow out of
the drain;
7. Reposition the box in the correct seat;
ATTENTION !!! The neutralisation box must be
filled with water to prevent gas from leaking out of the
drain during unit operation.
8. Open the gas supply;
9. Restore power to the appliance.
ATTENTION !!! Follow figure 17-9 carefully to
but box “A” back in the right position. After the above
maintenance, restore the liquid level in the siphon as per
section 15.1.2.
B
A
020010.01.014
Figure 17-9 - Disassembling and opening the
condensate neutraliser box
A C
