Buderus GC144/3, Инструкция по установке и обслуживанию

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15
Boiler inspection and maintenance
Logano GC 144 II – 6 720 808 893 (2017/02) 21
Fig. 30 Gas valve
[1] ON/OFF knob (shown in ON position)
15.5 Cleaning the boiler
The boiler can be cleaned with brushes and/or by wet cleaning. Cleaning
tools are available as accessories.
Inspecting the ignition burner
▶ Observe the ignition burner through the sight glas window
(

figure 31).
Fig. 31 GC 144 II
[1] Sight glass
▶ The flame must rise over the sensor by ½" to 1-½".
▶ The pilot ignition gas pressure must be adjusted if the flame is too
small or too large.
Fig. 32 Correct ignition flame setting
[1] Flame rises ½" to 1-½" above sensor
[2] Ignition flame
▶ Remove the safety screw on the adjustment screw for the igniter
(

figure 24, page 17).Turn the inner adjustment screw clockwise
to reduce the size of the ignition flame, and counterclockwise to
increase it.
▶ After completed adjustment replace the safety screw
(

figure 24, page 17).
▶ If the flame is too small, the pilot orifice needs cleaning
(

figure 39, page 23). If the igniter flame is acceptable, start
cleaning.
Fig. 33 Gas valve
[1] Safety screw on igniter adjustment screw
The adjustment screw is located behind a safety screw
on the gas valve (

figure 33).
1
6 720 8 04 440-3 8 .1T
1
6 720 8 04 440-39.1T
Be careful not to damage the pilot orifice during
installation and cleaning.
2
1
6 720 8 04 440-40.1T
1
6 720 8 04 440-41.1T