1.9 Filling of system.
After the boiler is connected, ll the system by means of
the ller cock (see g. page 16, 17 and 20). Filling must be
done slowly to ensure the release of air bubbles in the water
through the boiler and heating system relief valves.
e boiler has a built-in automatic air valve on the expansion
tank, located on the side of the sealed combustion chamber.
Check that the cap is loosened. Open the relief valves on the
radiators. Close the relief valves when only water comes out.
Close the ller cock when the boiler pressure gauge indicates
approx. 1.2 bar.
N.B.: During this operation, start the circulating pump at
intervals by means of the main switch on the control panel.
Vent the circulating pump by unscrewing the front cap and keep-
ing the motor running. Tighten the cap on completion.
1.10 Condensate trap lling.
With the rst boiler lighting fumes may come out the
condensate drain; after a few minutes’ operation check that
fumes no longer come out. is means that the trap is lled
with condensate to the correct level thus preventing the
passage of fumes.
1.11 Gas system start-up.
To start up the system proceed as follows:
- open windows and doors;
- avoid the presence of sparks or naked ames;
- vent all air from pipelines;
- check gas supply tightness with the boiler gas ON/OFF
cock closed; no gas ow must be indicated on the meter
for 10 minutes.
1.12 Boiler start-up (lighting).
For issue of the Declaration of Conformity provided for by
Italian Law, the following must be done for boiler start-up:
- check gas supply circuit tightness with the 0n/O valve
closed and subsequently open with gas valve closed; no gas
ow must be read on the meter for 10 minutes;
- ensure that the type of gas used corresponds to that for
which the boiler is arranged;
- switch on the boiler and ensure correct ignition;
- make sure that the gas owrate and relevant pressure values
comply with those given in the manual (see page 32);
- ensure that the safety device activates in the event of no gas
and check activation time;
- check activation of the main switch generally located ahead
of the boiler and on the unit;
- check that the concentric intake/exhaust terminal (if tted)
is not blocked.
e boiler must not be started up in the event of negative
result of any of the above checks.
Preliminary boiler testing must be performed by a qualied tech-
nician. e boiler warranty is valid as of the date of testing.
e test and warranty certicate is issued to the user.
1.13 Circulating pump.
“Victrix” range boilers are supplied with a built-in circulating
pump with 3 or 4-position electric speed control (depending
on the circulating pump). e boiler does not operate
correctly with the circulating pump on rst and second
speed. To ensure optimal boiler operation, with new systems
(single pipe and modul) it is advisable to use the circulating
pump at maximum speed. e circulating pump is already
tted with a capacitor.
Pump release. If, after a prolonged period of inactivity, the
circulating pump is blocked, unscrew the front cap and turn
the motor shaft using a screwdriver. Take great care during
this operation, to avoid damaging the motor.
14
INSTALLERUSERTECHNICIAN
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