Instruction for Use

22
On completion of the 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 National Regulations relative to “regula-
tors for channelled gas”.
Burner and nozzle characteristics
S
S
R
A
K3G76/U
K3G76S/U
* At 15°C and 1013 mbar- dry gas
G30 (GPB-B) P.C.S. = 49,47 MJ/Kg
G20 (GZ50) P.C.S. = 37,78 MJ/m
3
GZ350 (GZ35) P.C.S. = 27,20 MJ/m
3
Table 1 G30 (GPB-B) G20 (GZ50) GZ350 (GZ35)
Burner Diameter
(mm)
Thermal
power
kW
(p.c.s.*)
By-pass
1/100
(mm)
Nozzle
1/100
(mm)
Thermal
power
kW
(p.c.s.*)
Flow *
g/h
Thermal
power
kW
(p.c.s.*)
Injector
1/100
(mm)
Flow*
l/h
Injector
1/100
(mm)
Flow*
l/h
Reduc. Nominal Nominal
Fast (large) (R) 100 0.70 41 86 3.40 247 3.00 116 286 158 397
Semi-fast (medium) (S) 75 0.40 30 70 2.20 160 1.90 106 181 143 251
Auxiliary (Small) (A) 55 0.40 30 50 1.30 95 1.00 79 95 106 132
Supply pressure
Nom.
Min.
Max.
36
29
44
20
16
25
13
10
16