Fume Exhaust With Boiler In Cascade; System Filling - Immergas VICTRIX 50 Instruction Booklet And Warning

1.12 Fume exhaust with boiler in cascade.

"VICTRIX 50" boilers installed in cascade and composed
of 2 or 3 generators, can be joined by manifold to a single
flue going the chimney.
Immergas supplies a suitable and original fume exhaust
system separately from the boilers.
However, for correct assembly of the kit the following indica-
tions must be taken into consideration.
- there must be a distance of 800 mm between generators
(either 2 or 3) (see figure above);
- the generators must be arranged on the same horizontal
line;
- the Ø 125 exhaust manifold must have a min. slope of 3%;
- the drain for condensate produced by the appliances must
be run into a drainage system;
- the fume exhaust manifold kit cannot be installed on
the outside (the tubing must not be exposed to UV sun-
light).
N.B.: check and if necessary adjust the heating power of each
single appliance (see adjustments page 40).
Kit assembly: Fit the various sections with fume damper
(1-2 and 3) up to the stop on the central hole of each single
boiler. Fit the various bends with inspection (4-5 and 6) on
the relevant sections with damper from the shortest to longest
so that the bend closest to the flue is the highest (see figure
above), then fit pipe (7) on bend (4). Cut pipes (8) and (9)
to size in order to respect the centre distance of 800 mm
between the boilers (see figure above).
Install pipe (8) on bend (5) and then fit everything on pipe
(7).
Install pipe (9) on bend (6) and then fit everything on pipe
(8).
Cut pipe (12) to size for correct connection between the
flue and pipe (9).
Fit pipe (10) up to the stop on pipe (7). Fit the condensate
drain section with trap (11) up to the stop on pipe (10).
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1.13 System filling.

After the boiler is connected, proceed with filling the system.
Filling must be done slowly to ensure the release of air bub-
bles in the water via the boiler and heating system vents.
e boiler is equipped with an automatic air valve located on
the circulating pump. Check that the cap is loosened. Open
the relief valves on the radiators. Close the relief valves only
when water comes out.
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
keeping the motor running. Tighten the cap on completion.
N.B.: e "VICTRIX 50" boiler does not have an expansion
tank on the system. A closed expansion tank must be installed
to guarantee correct boiler operation. e expansion tank
must comply with current regulations in the country of
installation. e dimensions of the expansion tank depend
on the data relevant to the heating system; install a tank with
capacity meeting the requirements of current regulations.