GAS - NOZZLE CALIBRATION
The boilers leave the factory calibrated and predisposed to operate with NATURAL GAS and LIQUID GAS.
These calibrations are effected without the connection of the compensating joint (Pos. A).
For the calibrations to put into effect, see the table related below:
Pressure on nozzles mbars
Gas type
NATURAL GAS
(G20-20mbars)
LIQUID GAS B
(G30-28/30mbars)
LIQUID GAS P
(G31-37mbars)
BURNER PRESSURE CURVES - OUTPUT
min.
max.
2
11
5
25
6,2
32
Burner
Delivery
nozzles
m
3
/h
Ø mm.
3,06
1,25
0,89
0,77
1,17
0,77
A Compensating joint
B Connecting pipe
To effect the gas valve calibration,
proceed as follows:
a) take the pipei B off the joint A;
b) effect calibration;
c) connect the pipe B again to the joint A.
43
L.C.V.
kcal/h
8.550
29.330
22.360