16
Table 2
– Approximate Time/Temperature Scald Chart
Alternate Space Heating Water Connections
DANGER
Toxic chemicals, such as those used for boiler treatment,
must NOT
be introduced into potable water used
for space heating.
This water heater
must NOT
be connected to an existing heating system or component(s) previously used
with a non-potable water heating appliance.
All piping components connected to this water heater for space heating applications
must
be suitable for use
with potable water.
This water heater has combination water/space heating connections and is
NOT
intended to be used in space
heating only applications.
WARNING
When the system requires water for space heating at temperatures higher than required for other uses, a
means such as an ASSE approved mixing valve should be installed to temper the water for those uses in
order to reduce scald hazard potential.
Failure to properly pipe this water heater may result in improper operation and damage to the water heater or
structure.
Oxygen contamination of this water heater will cause corrosion of iron and steel components and can lead to
water heater failure.
Connect the system supply and return piping to the water heater.
Refer to Figure 9 and Figure 10 for installation
examples. Maintain a minimum 1/2 in
(1.3 cm)
clearance from hot water piping to combustible
materials.
Figure 9
– Alternate
Space Heating
Connections
APPROXIMATE TIME/TEMPERATURE RELATIONSHIPS IN SCALDS
120°F
(49°C)
More than 5 minutes
125°F
(52°C)
1½ to 2 minutes
130°F
(54°C)
About 30 seconds
135°F
(57°C)
About 10 seconds
140°F
(60°C)
Less than 5 seconds
145°F (
63°C
)
Less than 3 seconds
150°F
(66°C)
About 1½ seconds
155°F
(68°C)
About 1 second
Содержание EF120T
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