Navien NHW700 User's Information Manual page 5

Non-condensing water heaters
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DANGER
Water temperature over 125°F (52°C) can cause
severe burns instantly or death from scalds.
Children, disabled and elderly are at highest risk
of being scalded. Feel water with your elbow
before bathing or showering. Temperature
limiting valves are available, contact a licensed
plumber for more information.
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.
Check local codes for maximum water
temperature setting allowed when used in
nursing homes, schools, day care centers and
other public applications.
Do not leave children, the elderly, or disabled
persons unsupervised.
Do not allow small children to play
unsupervised in the bathroom.
Do not allow anyone to change the water
temperature while hot water is running.
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.
If it is necessary to set the water temperature
above 125°F (52°C), consider installing a
thermostatically-controlled mixing valve or
temperature-limiting valve. Contact a licensed
plumber or your local plumbing authority for
more information.
4
Important Safety Information
HOT
BURN
DANGER
This water heater is set to 120 °F (49 °C) at the
factory for your safety and comfort. Increasing
the temperature increases the risk of accidental
scalding. Water temperatures at or above 125 °F
(52 °C) can cause instant scalding, severe burns,
or death. Before you decide to change the
temperature setting, read the following table
carefully.
Time in which a young child
Water
can suffer a full thickness
Temperature
(3rd degree) burn
160 °F (70 °C)
Less than 1 second
140 °F (60 °C)
1 second
130 °F (55 °C)
10 seconds
120 °F (49 °C)
10 minutes
100 °F (37 °C)
very low scald risk
Before setting the temperature at or above 125 °F
(52 °C), consider installing a thermostatically-
controlled mixing valve or temperature-limiting
valve. Contact a licensed plumber or your local
plumbing authority for more information.
SAVE THESE
INSTRUCTIONS
DANGER
WARNING
CAUTION
NOTICE
Indicates a hazardous
situation that if not
avoided will result in
severe injury or death.
Indicates a hazardous
situation that if not
avoided could result
in death or serious
injury.
Indicates a potentially
hazardous situation
that if not avoided
could result in minor
or moderate injury.
Indicates information
considered important
but not hazard-
related (such as
property damage).

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