Pos.
Description
1
Combustion head
2
Diffuser disc
3
Adjustment ring
4
Ignition electrode
5
Gas nozzle
6
Ignition gas nozzle
A
0.12 in ± 0.12 in
L
Factory setting : 1.77 in
Setting ignition electrodes GP-450 M
Set the following as shown in the illustration:
● ignition electrode horizontal distance from the nozzle (L)
● ignition electrode vertical distance from the nozzle (H)
● distance between electrodes (K)
Maximum tightening torque of ignition electrodes is 1 Nm.
A496V ver. 5
in
H
0.35
K
0.12
L
0.40
4.3 Adjusting combustion air (GP-450 M)
Adjustment ring positioning
Adjustment ring position has an effect on thif e pressure in the combustion head. Adjust
the pressure by moving the adjustment ring back and forth. This changes the gap
between the adjustment ring and the diffuser disc.
● At low capacity, the adjustment ring is at the front.
● At high capacity, the adjustment ring is at the back.
36 (114)
M4248 2316EN
Содержание GP-350
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