Symbol Description - Viessmann VITOFLEX 300-UF Operating Instructions Manual

Maintenance
Information on cleaning, inspection and maintenance
Danger
Fuel emissions and incomplete combustion lead
to the formation of life threatening carbon mon-
oxide (CO). Carbon monoxide is a colourless,
odourless and tasteless, extremely poisonous
gas, which in sufficient concentration results in
death.
Always wear a mobile CO monitor when enter-
ing the fuel store, rooms where fuel is transpor-
ted and the boiler room. If the monitor sounds
an alarm, leave the room immediately.
Observe the safety instructions for the fuel store.
Danger
Serious injuries or risk to life through electric
shock
Switch OFF the mains isolator before starting
any maintenance on the heating system. Safe-
guard the system against reconnection.
Danger
Risk to life if the system starts up unexpectedly.
Before restarting the system, ensure that no per-
sons are in the danger zone around the system.
Warning
Missing protective covers pose a risk of crushing
and cutting injuries through entanglement in
rotating or moving parts.
After completing maintenance work, ensure that
all protective covers are re-installed correctly.
Responsible groups of personnel
■ Maintenance jobs are carried out by various groups
of personnel.
All personnel charged with working on the heating
■
system must be instructed with reference to the doc-
umentation supplied.
The maintenance and cleaning schedules listed below
use the following symbols for each personnel group.
Symbol Description
O Boiler technician
V Viessmann Technical Service
ZH Approved heating contractor
Cleaning
Automatic shutdown
The "Automatic shutdown" function determines the
time at which the boiler switches to burnout, e.g. when
it is scheduled to be cleaned.
38
Warning
Risk of burns due to hot system components
Only carry out maintenance work when the sys-
tem has cooled down.
Warning
Risk of injury from compressed air blast
Switch the system off before opening the boiler
door.
Open the compressed air supply line of the
pneumatic cleaning system via the quick cou-
pling on the compressor. This ensures that the
cleaning system is no longer under operating
pressure.
Note
Wear personal protective equipment.
Always wear a face mask when handling ash or slag.
The contact details for your contacts can be found
under "Service", see page 23.
Maintenance reset
After maintenance has been completed, reset the days
or hours run to the preset value for the maintenance
interval by pressing "Reset"; see page 24.
Requirements
■ No boiler sequence control
■ No external demand
■ The boiler is in operation