GLOW T-150, Installation & Operation Manual

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Glow T150 & T180
Tankless Condensing Water Heater
10
DANGER
The temperature at which injury occurs varies with the person's age and time of exposure.
Water temperature over 125°F/52°C can cause severe burns instanly or death from scalding.
The slower response time of disabled persons increases the hazards to them. Never allow small children
to use a hot water tap, or to draw their own bath water. Never leave a child or disabled person unattend-
ed in a bathtub or shower.
The water heater should be located in an area where the general public does not have access to the
temperature control.
Lower water temperatures should be used to avoid the risk of scalding. It is further recommended, in all
cases, that the water temperature be set for the lowest temperature which satisfies the user’s hot water
needs. This will also provide the most energy efficient operation of the water heater and minimize scale
formation in the heat exchanger, thus prolonging the life of the unit.
Setting the water heater temperature at 120°F
/
49°C will reduce the risk of scalds. Some locations require
settings at specific lower temperatures. The table below shows the approximate time-to-burn relationship
for normal adult skin.
Hot water temperatures required for automatic dishwasher and laundry use can cause scalds and burns
resulting in serious personal injury and/or death.
Temperature
Setting
Over 170°F/77°C
160°F/71°C
150°F/66°C
140°F/60°C
130°F/54°C
120°F/49°C or less
Time to Produce 2nd, 3rd
Degree Burns on Adult Skin
Nearly instantaneous
About 1/2 second
About 1-1/2 seconds
Less than 5 seconds
About 30 seconds
More than 5 minutes
To protect against injury, you must install a tempering valve in the water system. This
valve will reduce point of discharge temperature by mixing cold and hot water in branch
supply lines. Such valves are available from the local plumbing supplier.
Table - Risks of Scalds