25
5 - HYDRONIC PIPING
Hot Water Can Scald!
Water heated to temperature for clothes
washing, dish washing and other
sanitizing needs can scald and cause
permanent injury.
Children, elderly, and infirm or physically
handicapped persons are more likely to
be permanently injured by hot water.
Never leave them unattended in bathtub
or shower. Never allow small children to
use a hot water tap or draw their own
bath.
If anyone using hot water in the building
fits the above description, or if state
laws or local codes require certain water
temperatures at hot water taps, you
must take special precautions:
• Use lowest possible temperature setting.
• Install some type of tempering device, such
as an automatic mixing valve, at hot water
tap or water heater. Automatic mixing valve
must be selected and installed according
to manufacturer's recommendations and
instructions.
Water passing out of drain valves may be
extremely hot. To avoid injury:
• Make sure all connections are tight.
• Direct water flow away from any
person.
DANGER
!
Water
Temperature
Setting
1st Degree Burn
Exposure Time For
An Adult
2nd and 3rd Degree
Burn Exposure Time
For An Adult
120° F
1 minute
5 minutes
130° F
5 seconds
30 seconds
140° F
2 seconds
5 seconds
150° F
1 second
1.5 seconds
160° F
Instantaneous
0.5 seconds
Note:
Warning for Infants, Children, and the
Elderly: Great care must be taken when exposing
the aforementioned groups to warm or hot water
as they can be badly burned in exposure times
less than half of the time for an adult.
PN 240012363 REV. B [03/29/2019]
