SPECIFICATIONS FOR PROPANE USE
•
Operating costs approximate assessment;
-
1 m3 of liquid gas in gaseous stage has a lower heating capaci
-
ty, of nearly 25.6 kWh.
-
To obtain 1 cu.m of gas, about 2 kg of liquid gas are needed,
i.e. about 4 litres of liquid gas.
• Safety provisions
• Liquid propane gas (L.P.G.) in the gaseous form has a greater spe-
cific weight than air (specific weight relative to air = 1.56 for propa
-
ne), which means it does not disperse in air like natural gas, which
has a lower specific weight than air (specific weight of natural gas
relative to air = 0.60), but precipitates and spreads out at ground
level (as if it were a liquid). Summing up the concepts we deem
most relevant fir the use of LPG
•
Liquefied petroleum gas (L.P.G.) burners and/or boilers may be
used only in premises located above ground level and certified
toward free spaces. Installations using liquid gas are not allowed in
underground or semi-underground premises.
•
Rooms where liquid gas is used must have ventilation inlets without
closing devices, located on external walls, in compliance with the
local exiting rules.
•
Carrying out the propane gas system to ensure
correct, safe operation.
Natural gasification from sets of cylinders or a tank can be used only
in low power systems. Gas supply capacity on the basis of tank size
and minimum outdoor temperature are shown in the table below, as
an approximate indication only.
Minimum
tempera-
ture
- 15 °C
- 10 °C
- 5 °C
- 0 °C
+ 5 °C
Tank 990 l.
1.6 Kg/h
2.5 Kg/h
3.5 Kg/h
8 Kg/h
10 Kg/h
Tank
3000 l.
2.5 Kg/h
4.5 Kg/h
6.5 Kg/h
9 Kg/h
12 Kg/h
Tank
5000 l.
4 Kg/h
6.5 Kg/h
11.5 Kg/h
16 Kg/h
21 Kg/h
•
Burner;
The burner must be ordered specifically for use with liquid gas
(L.P.G.) so that it is equipped with gas valves of sufficient dimen
-
sions to ensure correct ignition and gradual adjustment. We provide
valves with size suitable for a supply pressure starting from approx.
300 mm mbar. You suggest checking the burner gas pressure by
using a pressure gauge.
DANGER / ATTENTION
The maximum and minimum power (kW) of the burner refers
to natural gas which is more or less the same as with propane.
•
Combustion control
To keep consumption down and mainly to prevent serious problems,
regulate the combustion using the specific instruments. It is absolu
-
tely essential to check that the percentage of carbon monoxide (CO)
does not exceed the maximum permitted value by the local existing
regulation (use a combustion analyser or other similar instrument).
ENGLISH
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