Gas Requirements; System Filling; Flues/Chimneys - Sime Planet Dewy 30 BFT Notice De Montage, D'utilisation Et D'entretien

lation it is extremely important to clean the
system using suitable products such as,
descaler or slug removing solution.
For long-term protection against corrosion
and deposits, the use of inhibitors is recom-
mended after cleaning the system.
It is important to check the concentration
of the inhibitor after each system modifica-
tion and during maintenance following the
manufacturer's instructions (specific tests
are available at your dealer).
The safety valve drain must be connected
to a collection funnel to collect any dischar-
ge during interventions.
If the heating system is on a higher floor
than the boiler, install the on/off taps sup-
plied in kit on t he heating sy s t em
delivery/return pipes.
WARNING: Failure to clean the heat
system or add an adequate inhibitor inva-
lidates the device's warranty.
2.3. 1

Gas Requirements

Read the data plate to be sure the boiler is
made for the type of gas being used.
An adhesive data plate is inside the front
panel, it contains all the technical data iden-
tifying the boiler and the type of gas for
which the boiler is arranged.
If the information does not agree with the
type of gas available, do not install or opera-
te the boiler. Call your dealer.
The gas piping must be installed according
to all local and state codes, or in absence of
local and state codes, with the latest
"Natural gas and propane installation code",
CAN/CSA-B 149. 1 or "National Fuel Gas
Code", ANSI Z223. 1 (NFPA 54).
Consult the "Natural gas and propane
installation code" or "National Fuel Gas
Code" for the recommended gas pipe size
of other materials.
The sections of the piping making up the
system must be such as to guarantee a
supply of gas sufficient to cover the maxi-
mum demand, limiting pressure loss
between the gas meter and any apparatus
being used to not greater than:
1. 1.2 mbar (0.5"W.C.) for supply pressu-
res under 17 mbar (7"W.C.);
2. 2.5 mbar (1.0"W.C.) for supply pressu-
res from 17 mbar (7"W.C.) to 35 mbar
(14"W.C.).
Gas connections must be made in accor-
dance with current standards and regula-
tions.
When a vertical section of piping is instal-
led up stream/side of the boiler, install a
sediment trap at the inlet of boiler, that a
sediment trap must be provided upstream
of the gas control.
When dimensioning gas pipes from the
meter to the boiler, both capacity volume
(consumption) in m 3 /hr (ft 3 /hr) and gas
density must be taken into account. The
boiler and the boilers gas connection must
be leak tested before it is put in to opera-
tion. The boiler and its individual shut-off
valve must be disconnected from the gas
supply piping system during pressure
testing of the system at pressures in
excess of 1/2 psi (3.5 kPa). The boiler
must be isolated from the gas supply piping
system by closing its individual manual shut
off valve during any pressure testing of the
supply piping system at test pressures
equal to or less than 1/2 psi (3.5 kPa). The
boiler shall be installed such that the gas
ignition system components are protected
from water (dripping, spraying, rain etc.)
during boiler operation or service (circula-
tors or control replacement etc.). The boi-
ler and its gas connection must be leak
tested before placing the the boiler is put
into operation. Use a chloride-free soap and
water solution (bubbles forming indicate a
leak) or other approved method. After pla-
cing the boiler in operation, the ignition
system safety shutof f device must be
tested. To testing the system :
- close the gas valve (gas cock)
- to feed the boiler
- to verify the ignition of the led "Ignition
lock"
- to open the gas cock and to unblock
"Reset".
2.3.2 Condensation drain installation
A siphoned drain must be connected to the
civil drain by a pipe with minimum 6 mm
(1/4 in) for every 300 mm (1 foot) for
gradient for condensation collection.
Only normal plastic civil drain pipes are
suitable to convey condensation to the
building's sewer drain.
2.3.3 Gas pipe filter
The gas valve has a standard input filter
which, in any case, is not capable of filtering
all the impurities contained in the gas and
mains piping. To prevent poor valve opera-
tions or in certain cases, excluding the val-
ve's safety features, we recommend instal-
ling a suitable filter on the gas pipe.
2.5

SYSTEM FILLING

Filling of the boiler and the system is done
by installing a pressure reducing valve. The
charge pressure, with the system cold,
must be between 1 and 1.2 bar (14.5 and
17.4 psi). Filling must be done slowly so as to
allow any air bubbles to be bled off through
the air valves.
Should the pressure have risen well above
the limit expected, discharge the over pres-
sure by opening the pressure-relief valve.
Bleed pump by loosen plug at back of motor.
Once air is removed re-tighten plug. It may
be necessary to free the pump motor
before filling the system. This is done by
removing the pump plug and turning the
pump shaft loose. Do not forget to re-tight-
en pump plug before filling system.
To see following page about "Typical piping".
2.6

FLUES/CHIMNEYS

The flue or chimney used to release the
products of combustion into the atmosphe-
re must comply with current standards
and regulations. Horizontal vent lengths
must be supported every I meter (39 in) or
less to prevent sagging.
The boiler can be exhausted using separate
pipe or forced draft. Follow the appropria-
te instructions below for your particular
venting configuration.
2.6. 1 Installation separate pipes
(fig. 5)
The vent pipe must be certified ø 3" (76
mm) category IV venting; for this type of
flues it is necessary to demand kit optional
code 8089925 for tubes 3" in steel
(AL294C), and the kit code 8089926 for
tubes 3" in PVC or CPVC (standards with
units). When installing the pipes, follow clo-
sely the requirements of the current stan-
dards and regulations, as well as the fol-
lowing practical pointers:
1. With direct intake from outside, when
the pipe is longer than 1 m (3.28 ft -40
in), you are recommended to insulate
the piping so as to prevent formation of
dew on the outside of the piping during
particularly hard periods of the year.
2. With the outlet pipe outside the building
or in cold indoor environments, insula-
tion is necessary to prevent burner fai-
lure during trial for ignition.
In such cases, provide for a condensate-
collector system on the piping.
3. If a segment of the flue passes through
a flammable wall, this segment must be
insulated with a glass wool pipe insula-
tor 30 mm (1 in) thick, with a density of
50 kg/m 3 (3lb/f t 3 ) or follow vent
manufacturers instructions for clearan-
ces to combustibles
4. The distance between the intake air and
the vent pipe must be within 300 mm
(1 ft - 12 in).
5. Slope the venting towards the wall hung
boiler, for long runs or installation where
condensation in vent may cause flame
failure during trial for ignition provide a
condensation collection on the piping,
close to the wall hung boiler.
The maximum overall length of the intake
and exhaust ducts depends on the head
losses of the single fittings installed and
must not be greater than 5 mm H
(0.20 "W.C.).
For head losses in the fittings, refer to Table 2
- 2/a.
ENG
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