Buderus Logano G124X II/SP Installation And Maintenance Instructions Manual page 38

11 Placing the heating system in operation
47. After adjustment tighten the pilot burner pressure
adjustment safety screw (
48. Turn gas valve ON/OFF switch (
counterclockwise to ON position. The gas valve
ON/OFF switch can only be set to ON if the red reset
button is out.
49. Place the heating system electrically in operation
50. Make sure that the thermal element responds to
heat.
51. The pilot flame must ignite the main burner. If the
main burner does not ignite, close the gas valve.
Disconnect heating system from the power supply
and inform your customer service technician or LP
gas company.
52. If the main burner has ignited, the gas valve must be
checked for leaks with soap solution. If no leaks are
found, continue with step 54. If leaks have been
found, switch ON/OFF switch on gas valve
( Fig. 37) clockwise to the OFF position.
Disconnect the heating system from the power
supply.
53. Seal leaks. Repeat steps 35 to 52.
54. Check manifold pressure. The manifold pressure
must be set in accordance with the values in
Tab. 8. To set the manifold pressure the safety
screw for setting the manifold pressure on the gas
valve must be removed. Turn the adjustment screw
clockwise to increase the pressure and
counterclockwise to reduce the pressure. This
setting must be adjusted while the boiler is
operating.
Natural gas
G124X SP
[inch W.C.]
18
25
32
Tab. 8 Manifold pressure
55. Record the set value in the commissioning protocol
of the installation and maintenance instructions and
screw the safety screw into the gas valve again.
38 Installation and maintenance instructions Logano G124X II/SP special gas-fired boiler • Issue 04/2005
Fig. 37) again.
Fig. 37)
Propane
[inch W.C.]
3.6 9.8
3.5 10.3
3.6 10.0
3
2
1
Fig. 37 G124X SP gas valve
1 Safety screw for pilot burner pressure setting
2 ON/OFF button (at ON position)
3 Reset button
4 Screw plug for gas supply pressure measuring port
5 Safety screw for manifold pressure setting
6 Screw plug for manifold measuring port
We reserve the right to make any changes due to technical modifications.
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