Navien NFC-250/175H, Руководство по установке, Страница: 6 / 151

6 Safety Information
DANGER
This boiler’s DHW temperature 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 charts carefully.
Water
Temperature
Time in which a young child can
suffer a full thickness
(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
DANGER
HOT
BURN
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.
●
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.