A
B
P
MODEL
A
MAX GAS 40 P
288
MAX GAS 70 P
303
MAX GAS 105 P
317
MAX GAS 120 P
317
Installation must be carried out in compliance with the local provisions
4,0
3,0
2,0
1,0
0,6
0,5
0,4
d=0,3
0,3
d=0,225
0,2
0,1
12
24
40
(a)
d = diamètre chambre de combustion
kW
PRELIMINARY CHECKS
Before starting up the boiler check the following: - gas type and feed pressure; - gas valves closed; - the seals in the pipe
fittings; - gas pipe breather and input pressure; - that the cable complies with the diagram and the phase and neutral
wires correspond; - that the burner shuts down when the boiler thermostat opens; - the seal of the boiler furnace which
prevents air from entering; - the seal on the flue-boiler pipe fitting; - the condition of the flue (sealed, free from blocka-
ge, etc ). If all these conditions are present, start the burner. The control device starts the motor to carry out prewashing
of the combustion chamber. During this prewash period (about 30 seconds) the device checks that air pressure is correct
via the air pressure switch. At the end, it supplies power to the transformer and opens the gas valves. The flame must be
lit and stabilize within 3 seconds, which is the device's safety time limit. Check to ensure the flame is lit before placing
any control instrument in the flue. Adjust and check the gas flow necessary for the boiler at the meter. Adjust the air
flow according to the gas flow to obtain correct combustion.
IMPORTANT ADVICE
All adjustable parts must be fixed by the installer after making adjustments. Check flue combustion after each adjusti-
ment. The CO
values must be approx. 9.7 (G20) 9.6 (G25 11.7 (13B) 11.7 (13P) axld the CO must be less than 75
2
ppm.
C
B
C
D
D1
143
145
85
185
155
148
85
185
169
148
140
220
169
148
140
220
D = SHORT HEAD
d=0,7
d=0,6
d=0,5
d=0,4
70 100
190
480
STARTING-UP THE BURNER
420010316700 Max Gas 40 P - 70 P - 105 P - 120 P
D-D1
E
N
E
F
G
I
153
89
160
92/107 92/107 M8
204
89
160 100/120 100/120 M8
204
89
160 100/120 100/120 M8
204
98
160 100/120 100/120 M8
D1= LONG HEAD
The burners have been certified in combustion
d=0,8
chambers according to EN 676 standards. Consult
the burner manufacturer if the combustion cham-
ber of the boiler in which the burner is to be instal-
led has smaller dimensions.
1200
2450
9
151
126
M
I
L
M
N
O
54
73
52
71
82
52
71
82
52
71
82
EN
P
-