Viessmann Vitotronic 300-K Operating Instructions Manual page 7

Vitotronic 200 and 300-K Operating
For your Safety
Frozen water pipe hazard
WARNING
Failure to protect against frozen pipes could result in
burst water pipes, serious property damage and/or
personal injury. Boiler may shut down. Do not leave
your home unattended for long periods of time during
freezing weather conditions without turning off the
water supply and draining water pipes or otherwise
protecting against the risk of frozen pipes.
Your heating boiler is designed to provide a warm and
comfortable living environment. It is not designed to
ensure against freezing of water pipes. The boiler is
equipped with several safety devices that are designed
to shut down the boiler and to prevent it from restarting
in the event of various unsafe conditions.
If your boiler remains off for an extended period of time
during cold weather, water pipes may freeze and burst,
resulting in extensive water damage and conditions in
which mold could grow. Certain molds are known to
cause respiratory problems, as well as to pose other
serious health risks. In case of water damage, immediate
measures should be taken to dry out affected areas as
quickly as possible to prevent mold from developing.
If your home will be unattended for an extended period
of time during cold weather, you should...
H Shut off the water supply to the building, drain the
water pipes and add an antifreeze for potable water
to drain traps and toilet tanks. Open faucets where
appropriate.
Or..
H Have someone check the building frequently during cold
weather and call a qualified service agency if required.
Or...
H Install a reliable remote temperature sensor that will
notify somebody of freezing conditions within the
home.
Replacement components, spare and wear parts
IMPORTANT
Components which are not tested with the heating
system may damage the heating system, or affect its
functions. Installation or replacement may only be
carried out by a qualified heating contractor.
(continued)
Installation area conditions
WARNING
Incorrect ambient conditions can lead to damage to
the heating system and put safe operation at risk.
H Ensure ambient temperatures are higher than 32° F
(0° C) and lower than 104° F (40° C).
H Prevent the air from becoming contaminated by
halogenated hydrocarbons (e.g. as contained in
paint solvents or cleaning fluids) and excessive dust
(e.g. through grinding or polishing work).
Combustion air for the heating process, and ventilation
of the boiler room must be free of corrosive
contaminants. To that end, any boiler must be installed
in an area that has no chemical exposure. The list to
the right indicates the main, currently known sources.
H Avoid continuously high levels of humidity
(e.g. through frequent drying of laundry).
H Never close existing ventilation openings.
Sources of combustion and ventilation air contaminants
Areas likely to contain contaminants:
H New building construction
H Swimming pools
H Remodelling areas, hobby rooms
H Garages with workshops
H Furniture refinishing areas
H Dry cleaning/laundry areas and establishments
H Auto body shops
H Refrigeration repair shops
H Metal fabrication plants
H Plastic manufacturing plants
H Photo processing plants
H Beauty salons
Products containing contaminants:
H Chlorine-type bleaches, detergents and cleaning
solvents found in household laundry rooms
H Paint and varnish removers
H Hydrochloric acid, muriatic acid
H Chlorine-based swimming pool chemicals
H Spray cans containing chlorofluorocarbons
H Chlorinated waxes and cleaners
H Cements and glues
H Refrigerant leaks
H Calcium chloride used for thawing
H Sodium chloride used for water softening salt
H Permanent wave solutions
H Adhesives used to fasten building products and other
similar items
H Antistatic fabric softeners used in clothes dryers
Safety
7