19
c) Regulating the primary air of the burners: the primary
air of the burners does not need to be regulated.
Important
On completion of this operation, replace the old rating
sticker with one indicating the new type of gas used. This
sticker is available from our Service Centres.
Note
Should the pressure of the gas used be different (or vary)
from the recommended pressure, it is necessary to fit a
suitable pressure regulator onto the inlet pipe in compli-
ance with current standards regarding “regulators for chan-
nelled gas.”
Burner and Nozzle Specifications
Table 1
Liquid Gas
Natural Gas
Burner
Diameter
(mm)
Thermal Power
kW (p.c.s.*)
By-Pass
1/100
Nozzle
1/100
Flow*
g/h
Nozzle
1/100
Flow*
l/h
Nominal
Reduced
(mm)
(mm)
***
**
(mm)
Fast
(Large)(R)
100
3,00
0,7
41
86
218
214
116
286
Semi Fast
(Medium)(S)
75
1,90
0,4
30
70
138
136
106
181
Auxiliary
(Small)(A)
55
1,00
0,4
30
50
73
71
79
95
Triple Ring
(TC)
130
3.25
1.5
63
91
236
232
133
309
Supply
Pressures
Nominal (mbar)
Minimum (mbar)
Maximum (mbar)
28-30
20
35
37
25
45
20
17
25
*
At 15°C and 1013 mbar- dry gas
**
Propane
P.C.S. = 50,37 MJ/Kg
***
Butane
P.C.S. = 49,47 MJ/Kg
Natural
P.C.S. = 37,78 MJ/m
3
TC
A
S
R
K6T72S/I
