Buderus Logano G334 X Instructions Manual page 13

Start-up instructions
15. Observe pilot flame through the sight glass (
10 page 11) in the burner housing.
16. The flame must envelope the flame guard 1/2 to 1
1/2 inches. If this is the case continue with step 20.
17. If the pilot flame is too small or too large, the
pressure for the pilot must be adjusted with the
corresponding adjustment screw.
USER NOTE
The adjustment screw is behind the pilot
pressure adjustment safety screw
( Fig. 11 page 12).
18. Remove safety screw for pilot pressure setting
( Fig. 11 page 12). Turn the inner adjustment
screw clockwise to reduce the pilot flame and
counterclockwise to enlarge the pilot flame.
19. After adjustment tighten the pilot pressure
adjustment safety screw (
20. Observe main burner flame through the sight glass
( Fig. 10 page 11) in the burner housing. The
flame must have a steady and fixed contour and
generally has a bluish color. If the main burner flame
meets the requirements, proceed with step 21. If the
main burner flame is too weak or is yellow or goes
out, turn the ON/OFF switch (
the gas valve clockwise to OFF. Close the gas valve
and disconnect the heating system from the power
supply and contact the customer service technician
or the gas company.
Checking ignition safety switch
21. Test the safety switch by closing the gas shut-off
valve. The main burner flame (
pilot flame ( Fig. 12) are extinguished. After six (6)
seconds at the most the main gas solenoid valve on
the gas valve must close with an audible noise.
22. After 90 seconds the automatic igniter must switch
to lock status and stop generating sparks.
23. Disconnect the heating system from the power
supply. Open main gas shut-off valve. Switch on unit
power supply. A normal operating cycle must follow.
24. If the gas valve operates correctly, proceed to
step 25. If the gas valve does not operate correctly,
switch ON/OFF switch (
clockwise to the OFF position immediately. Close
main gas shut-off valve. Disconnect heating system
from the power supply and inform the customer
service technician or gas company.
We reserve the right to make any changes due to technical modifications.
Instructions for conversion kit for Logano G334 X gas-fired boiler • Issue 09/2005
Fig.
Fig. 11 page 12) again.
Fig. 11 page 12) on
Fig. 13) and the
Fig. 14) on the gas valve
1
Fig. 12 Correct pilot flame setting
1 1/2 to 1 1/2 inches
2 Pilot flame
1
Fig. 13 Main burner
1 Main burner flame
4
2
13