Operating Tips; Shutdown; Normal Shutdown Of The Heating System; Shutting Down The Heating System For An Extended Period - Buderus Logano G234X User Manual

3.4

Operating tips

The right fuel
To ensure proper operation, the heating system requires fuel of the
correct type and grade.
NOTICE: Risk of system damage from use of incorrect
fuel!
▶ Use only the fuel specified.
The correct fuel is entered in Tab. 3 by the heating
contractor.
If the boiler is to be converted to a different fuel type or other fuel:
▶ Consult a certified heating contractor.
Only use this fuel type:
__________________________________________________________________
__________________________________________________________________
Stamp/Date/Signature
Table 3 Fuel to be used (entered by heating system installer)
Quality of the combustion air
▶ Keep the supply of combustion air free of corrosive substances (e. g.
halogenated hydrocarbons that contain chlorine or fluorine
compounds).
This prevents corrosion.
▶ Do not use or store any chlorine-containing cleaning agents or
halogenated hydrocarbons in the boiler room (e. g. in spray cans,
solvents and cleansers, paints, adhesives).
▶ Keep the combustion air supply free of dust.
If construction work is taking place in the installation room and creating
a lot of dust:
▶ Shut the boiler down and cover it as necessary.
▶ A burner that has been fouled by construction work must be cleaned
before being commissioned.
Boiler Room Guidelines
NOTICE: Risk of system damage from water!
▶ In the event of severe risk of flooding, disconnect the
boiler from its power supply and shut off the fuel
supply before water enters the boiler room.
▶ All parts that have been in contact with water must be
replaced by a trained and certified installer.
Logano G234X – 6 720 811 235 (2014/05)
4

Shutdown

4.1

Normal shutdown of the heating system

▶ Place the ON/OFF switch in the OFF position ( Fig. 8). This shuts
off power to the boiler and all of its components (e. g. burner,
temperature controller).
Fig. 8 ON/OFF switch (OFF position)
▶ Turn the gas valve ON/OFF knob clockwise to the OFF position
( Fig. 3, page 5).
▶ Shut off the fuel supply at the main fuel shutoff valve.
For further shutdown procedure  Documents for the AquaSmart
4.2 Shutting down the heating system for an extended
period
NOTICE: Risk of system damage due to freezing!
The heating system can freeze up if it does not operate
for an extended period of time and is exposed to
temperatures below freezing (e. g. during a power
failure, if the power has been switched off, through lack
of gas supply, boiler fault).
▶ Protect the heating system against frost when
temperatures below freezing are expected.
▶ With the control unit switched OFF, drain the water
from the boiler, the DHW tank and the pipework of
the heating system and, as far as possible, from the
DHW pipework.
If the boiler is taken out of use for a longer period and there is a risk of
frost:
▶ Drain the heating system completely.
▶ Open the automatic air vent at the highest point in the heating
system.
▶ Drain the heating water at the lowest point of the heating system by
means of the fill and drain valve or a radiator.
4.3

Shutting down the heating system in emergencies

▶ Have a heating contractor explain what to do in an emergency
(e. g. a fire).
Switch OFF the heating system via the emergency
shutoff switch or the building circuit breaker/fuse only in
emergencies.
▶ Never put yourself at risk of fatal injury.
Your own safety is paramount.
▶ Close the main shutoff valve or gas shutoff valve.
▶ Isolate the heating system from the electrical power supply via the
emergency shutoff switch or the corresponding building fuse.
4
Shutdown
6 720 806 028-19.1T
TM
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