Shutting Off Gas Supply To Boiler - Buderus Logano GC 144 II User Manual

3
Start-up instructions
WARNING: Risk to life due to fire or explosion.
▶ Never use excessive force, when adjusting the gas
control knob ( figure 3).
▶ Adjust the gas control knob only by hand.
▶ Never use a tool for adjusting the gas control knob.
▶ If you can not turn the gas control knob by hand, do
NOT try to repair it.
▶ Contact a qualified service organization at this point.
Fig. 2 Open boiler front door
▶ Turn the gas control knob clockwise in the "OFF" position. Do not use
excessive force.
1
Fig. 3 Gas valve
[1] Gas control knob (shown in the "ON" position)
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WARNING: Risk to life due to ignition of flammable
gases.
▶ Wait 5 (five) minutes until all gas odors have
disappeared. Check to see if any gas odors remain,
also at floor level. In case gas odors are still present,
shut off gas supply, shut off electrical power to the
boiler and inform the boiler technician or local gas
utility company.
▶ If you do not smell gas, proceed to the next step.
This unit is equipped with an automatic ignition system
which automatically starts the pilot burner. Do not
attempt to ignite it manually.
▶ Turn gas control knob counterclockwise to ON position. Do not use
force.
▶ Close boiler front door.
▶ Open main gas supply.
▶ Turn on electric power to heating system.
▶ Set thermostat to desired room temperature.
▶ If the heating system does not start operating, follow the instructions
for turning off gas supply to boiler ( chapter 3.2) and inform your
boiler technician or your gas company.
3.2

Shutting off gas supply to boiler

▶ Set thermostat (optional) to the lowest value.
▶ Disconnect heating system from the power supply by shutting off the
emergency shut-off switch outside the boiler room or by disengaging
the heating system circuit breaker.
▶ Open boiler front door ( figure 2).
▶ Turn gas control knob clockwise to the OFF position. Do not use
excessive force.
1
Fig. 4 Gas valve
[1] Gas control knob (shown in the "ON" position)
▶ If necessary, shut off main gas supply.
▶ Close boiler front door.
Flame roll-out switch
The boiler is equipped with a flame roll-out switch. If the venting system
of the boiler is blocked, the flame roll-out switch will respond. Do not try
to turn on the boiler. Inform a qualified service company. The venting
system of the boiler must be checked for blockage and the flame roll-out
switch must be replaced. The flame roll-out switch is for one-time use
only. Do not try to reuse it.
Logano GC 144 II – 6 720 808 895 (2014/04)
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