41
AGUADENS
COSMOGAS
6 - OPERATING
6.5 - Ignition
1.- open the gas isolation valve;
2.- power the appliance electrically;
3. - adjust the temperature desired for the domestic hot water
service using the
and
keys. The icon
, present on the display will inform regarding the operating
state of the domestic hot water service:
a) fixed
icon: domestic hot water inactive (no-one
is withdrawing domestic hot water, or in the case of a
storage tank, the delivery temperature as been reached)
b) flashing
icon: domestic hot water is being withdrawn.
4.- open the domestic hot water tap to the maximum to
evacuate the air inside the water heater. If the water flow
appears to be limited, open two or three taps to evacuate
completely the air. On models 37 you can help by opening
the manual air purge valve (see detail “47“ of figure 3-4 )
6.6 - Check the gas supply pressure
The gas supply pressure must correspond to that stated in
the table in section 9 at the end of the manual.
For its verification, proceed as follows:
1.- close the gas supply manual valve;
2.- access the components inside the appliance, following
the procedure in section 8.2;
3.- loosen the pressure port “A” (see figure 6-9);
4.- connect to a pressure gauge with resolution of at least
0,1 mbar (1 mmH2O);
5.- open the gas manual valve;
6.- check that the pressure does not exceed the value given
in the table in section 9 under “gas supply maximum
pressure”;
7.- open the domestic hot water tap to maximum;
8.- wait for the temperature of the appliance to stabilise;
9.- check that the pressure does not drop to a lower value
than the “gas supply minimum pressure” given in section
9. If the supply pressure does not respect the values
described, operate upstream from the appliance in order
to take it back within the minimum and maximum range;
10.- close the domestic hot water tap;
11.- close the pressure point “A” in figure 6-9;
12.- check for any gas leaks on port “A” in figure 6-9.
CAUTION !!! Perform the leak test using a soap
and water only. The use of naked flames is prohibited.
Figura 6-9 - Valvola del gas
A - Presa di pressione ingresso gas.
A
020003.01.023
Summary of Contents for AGUADENS Series
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