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11 - OPERATING
11.1 - Operating
Before starting the boiler, the following
must be done.
11.1.1 - User
instructions
The user must be correctly instructed
by the installer, on how to operate the
boiler, in particular:
Make sure that the user keeps this
manual and all other documentation
included with the boiler.
Make sure that the user
understands never to tamper
with gas control settings and the
risk of CO poisoning should an
unauthorized individual do so
Make sure that the user is informed
of all the special measures to be
taken for combustion air inlet and
discharging fl ue gases, and that
these must not be modifi ed.
Make sure that the user knows
how to adjust temperatures,
controls and the room thermostats
for maximum effi ciency.
Figure 30 - Filling the
condensate trap
11.1.2 - Filling the
condensate trap
The condensate trap is positioned
inside the boiler as shown in fi gure 1,
item "46". It must be fi lled with water
to prevent the leakage of fl ue gases
from the condensate drainpipe, item
"41" in fi gure 1. To fi ll the condensate
trap proceed as follows:
1. unscrew "E" screw (Figure 30);
2. remove fl ange "D" and O-Rings "C"
(Figure 30)
3. With a rubber tube and a funnel,
slowly pour approximately 4 oz.
(100 ml), of water into the "B"
opening - DO NOT put water into
the "A" opening (Figure 30);
4. re-install fl ange "D" and O-Rings
"C" and reinstall screw "E" (Figure
30);
WARNING!!! If boiler stays off
for more than 3 months, repeat
the above operation to again fi ll
the condensate trap.
Figure 31 - A = Purge screw
for the domestic hot water
heat exchanger
38
11.1.3 - Filling the
heating system
WARNING!!! Never use non-
approved additives or toxic boiler
treatment chemicals in the heating
system as they can cause serious
health problems or possibly death.
Any additives introduced into the
heating system must be recognized
as safe by the United States Food
and Drug Administration.
CAUTION!!! The heating
system must be fi lled with clean
water from the domestic water
system. Contaminated water can
damage the boiler voiding its
warranty.
CAUTION!!! The addition
of any chemical substances, such
as anti-freeze, must be carried
out according to the product
instructions. Read and follow
instructions in sections 13.10 and
13.11 to prevent problems.
To fi ll the heating system, proceed as
follows:
1. open the automatic air vent, shown
as item "1" in fi gure 1, two turns;
2. open the fi ll valve located under
the boiler and proceed to fi ll the
heating system and boiler until the
pressure gauge, item "30" in fi gure
1, reads 20 psi (1.5 bar) and "FILL"
disappears from the display;
3. check that there is no water leaking
from the fi ttings. If there is the leaks
must be eliminated;
4. close the fi ll valve;
5. check the pressure gauge during
the purging process. If the pressure
has dropped, re-open the fi ll valve
to bring the pressure back up to 20
psi (1.5 bar).
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