Navien NCB300-28K, Service Manual

Page: 8 / 108

Safety Information 7
The following safety symbols are used in this manual. Read and
follow all safety instructions in this manual precisely to avoid
unsafe operating conditions, fire, explosion, property damage or
personal injury.
DANGER
Indicates an imminently hazardous
situation which, if not avoided, could
result in severe injury or death.
WARNING
Indicates a potentially hazardous
situation which, if not avoided, could
result in injury or death.
CAUTION
Indicates a potentially hazardous
situation which, if not avoided, could
result in property damage.
DANGER
If you smell gas:
●
Do not try to light any appliances.
●
Do not touch any electrical switches or
use landline phones.
●
From a neighbour’s phone, call
your gas provider and follow their
instructions.
●
If you cannot reach your gas provider,
call the fire department.
●
Do not return to your home until
authorised by your gas supplier or the
fire department.
Do not use or store flammable
products, such as petrol, solvents, or
adhesives in the same room or area as
the boiler.
●
The boiler has a main burner flame that
can turn on at any time and can ignite
flammable vapours. Vapours from
flammable liquids can explode and
catch fire, causing severe burns.
●
Vapours cannot be seen and are
heavier than air. They can travel long
distances along the ground and can be
carried from other rooms to the boiler’s
main burner flame by air current.
●
Keep all flammable products far
away from the boiler and store them
in approved containers. Keep the
containers closed tightly and out of the
reach of children and pets.
1. Safety Information