Safety Information; Safety Definitions; Safety Symbols; Symbols Used In The Instructions - Navien NCB-150E Service Manual

1. Safety Information

1.1 Safety Definitions

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, personal
injury, or death.

1.2 Safety Symbols

DANGER
Indicates an imminently hazardous situation which, if not
avoided, could result in severe injury or death.
WARNING
Indicates a potential hazardous situation which, if not avoided,
could result in injury or death.
CAUTION
Indicates an imminent hazardous situation which, if not
avoided, may result in minor or moderate injury.

1.3 Symbols Used in the Instructions

The following symbols are used throughout the instructions to
bring attention to important information concerning the appliance.
IMPORTANT
Warns of a risk of damage and environmental pollution
NOTE
Indicates additional information that is important but not
related to personal injury or property damage.
10 NCB-E Service Manual

1.4 Safety Precautions

DANGER
FLAMMABLE MATERIALS
Keep the area around the boiler clear and free from flammable
materials.
DO NOT place flammable liquids such as oils or gasoline, etc.
●
near the boiler.
DO NOT place combustibles such as newspapers and
●
laundry etc. near the boiler or the venting system.
DO NOT place or use hair spray, spray paint or any other type
●
of spray can near the boiler or the venting system (including
the vent termination).
DO NOT place anything in or around the vent terminations
●
that could obstruct the air flow in and out of the boiler such
as a clothes line.
DANGER
FLAMMABLE VAPORS
Vapors from flammable liquids will explode and catch fire
causing death or severe burns.
Do not use or store flammable products such as gasoline,
solvents or adhesives in the same room or area near the boiler.
Keep flammable products: far away from the boiler in
●
approved containers, tightly closed, and out of children's
reach.
Boiler has a main burner flame: which can come on at any
●
time, and may ignite flammable vapors.
Vapors: cannot be seen, are heavier than air, go a long way
●
on the floor and can be carried from other rooms to the
main burner flame by air currents.
Version 1.4