Viessmann WB1A Series Installation And Service Instructions Manual page 11

Mechanical Room
WARNING
If you notice fire coming from the
appliance, call the fire department
immediately! Do not attempt to
extinguish the fire unless qualified to
do so.
WARNING
Fire causes a risk of burns and
explosion!
H H H H Shut down the boiler
H H H H Close fuel shut-off valves
H H H H Use a tested fire extinguisher,
class ABC.
All manuals and user guides at all-guides.com
(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
paints 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.
General Information
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
11