01/2005 - Art. Nr. 13 010 553B
40
General information
Technical data
Burner characteristics
Models NC4 GX, NC6 GX and NC9 GX
are clean burning (low NOx emissions),
forced draft units, designed for on/off
operation. They can be fitted to various
types of boiler. The burners are
supplied with adjustable burner head
lengths.
For a given boiler, the appropriate
burner can be recommended on
request.
They use the gases shown in the table
opposite, subject to correct setting and
depending on the pressures available,
allowing for variations in the calorific
value of the gases.
Packaging
The burner and its cover are supplied in
a 12kg pack containing the following:
–
accessories assembly bag,
–
document folder including:
– operating instructions,
– wiring diagrams,
– boiler-house plate,
– guarantee.
–
valve assembly.
A
B
C
D
E
F
G
H
J
K
L
M
NC4/6 GX107/8 (CG10)
254
204
137
32
428
355
297 min
337 max
70 min
110 max
Rp1/2 Ø 80
21 min
61 max
48
NC9 GX107/8 (CG15)
266
240
179
38
465
404
300 min
355 max
70 min
138 max
Rp3/4 Ø 90
15 min
83 max
52
Main statutory instruments “FR”
Dwellings:
–
French Order dated 2nd August
1977 and later modifying /
supplementary orders: Technical and
safety regulations governing
combustible gas and liquified
hydrocarbon installations located
inside dwellings and their
outbuildings.
–
DTU Standard P 45-204: Gas
installations (formely DTU n° 61-1 -
Gas installations - April 1982 + later
addendums).
–
DTU Standard 65.4 - Boiler house
technical provisions.
–
French NF Standard C15-100 - Low
voltage electrical installation
regulations.
–
French Departmental health
regulations.
Public Buildings:
–
Public building fire and panic
prevention safety regulations:
General provisions:
–
GZ sections (combustible gas and
liquified hydrocarbons);
–
CH sections (heating, ventilation,
cooling, air conditioning and steam
and domestic hot water production);
Provisions specific to each type of
public building.
Outside “FR”
–
Refer to local regulations.
Space requirements and
dimensions
There should be a space of no less
than 0.60 metres around the burner for
maintenance purposes.
Boiler-house ventilation
The volume of fresh air required is
1.2 m
3
/kWh produced at the burner.
Type of
calibrating gas
Group
Distribution pressure
H
i
at 0° C and 1013 mbar
Gas
pn
mbar
pmin
mbar
pmax
mbar
min
(kWh/m
3
)
max
(kWh/m
3
)
NC4/6
Natural gas
2H
20
17
25
9,5
11,5
G20
Natural gas
2L
25
20
30
8,5
9,5
G25
Commercial
propane
3P
37
25
45
24,5
26,5
G31
NC9
Natural gas
2H
20
300
17
240
25
360
9,5
11,5
G20
Natural gas
2L
25
300
20
240
30
360
8,5
9,5
G25
Commercial
propane
3P
37
148
25
120
45
180
24,5
26,5
G31
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