Navien NCB-24LDWE User's Information Manual page 4

Condensing combi boiler
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DANGER
To prevent burns:
Use the lowest operating temperature
setting necessary to provide
comfortably hot water.
If your household has children or
elderly or disabled residents, consider
using a lower temperature setting.
Read all the instructions in this
manual carefully before changing the
temperature setting.
Feel the water before using it on
children, the elderly, or the disabled.
DANGER
This boiler's water temperature is set to
49°C at the factory for your safety and
comfort. Increasing the temperature
increases the risk of accidental scalding.
Water temperatures at or above 52°C
can cause instant scalding or severe
burns. Before you decide to change the
temperature setting, read the following
charts carefully.
4
Safety Information
HOT
BURN
Water
Time in which a young child can suffer
Temperature
a full thickness (3rd degree) burn
70°C
Less than 1 second
60°C
1 second
55°C
10 seconds
49°C
10 minutes
37°C
Very low scald risk
WARNING
Shut off the gas supply if the boiler is
damaged.
Have your installer or plumber show
you the location of the gas shut off
valve and demonstrate how to close
the valve. If the boiler is damaged as a
result of overheating, fire, flood, or any
other reason, close the manual shut
off valve and do not operate the boiler
again until it has been inspected by a
qualified technician.
Do not store or use petrol or other
flammable liquids near this boiler.
Doing so may result in fire or explosion.
Do not place combustibles, such as
newspapers or laundry, near the
boiler or flue system.
Doing so may result in a fire.

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