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Safety Information - Bosch Greentherm T9900 SE 160 Installation And Operating Instructions Manual

Indoor residential tankless water heaters, 160 000/199 000 btu- natural gas 160 000/199 000 btu - liquefied petroleum lp gas
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Safety information

NOTICE:
Appliance damage!
▶ Label all wires prior to disconnection when servicing
controls. Wiring errors can result in improper and
dangerous operation. Verify proper operation after
servicing.
WARNING:
Relief valve discharges!
▶ If a relief valve discharges periodically, this may be due to
thermal expansion in a closed water supply system.
Contact the water supplier or local plumbing inspector on
how to correct this situation. Do not plug the relief valve.
WARNING:
Personal Injury from toxic chemicals.
▶ Toxic chemicals, such as those used for boiler treatment,
shall not be introduced into the potable water used for
space heating.
WARNING:
Personal Injury from toxic chemicals.
▶ A water heater which will be used to supply potable water
shall not be connected to any heating system or
component(s) previously used with a nonpotable water
heating appliance.
8
2
Safety information
Fig. 1
The chart below shows the relationship between water
temperature and time until there is a risk of scalding. It can be
used as the basis for determining the safest water temperature
for your application.
Temperature
Time to severe scalding
120 °F (49 °C)
longer than 5 minutes
125 °F (51 °C)
1.5 to 2 minutes
130 °F (54 °C)
approx. 30 seconds
135 °F (57 °C)
approx. 10 seconds
140 °F (60 °C)
less than 5 seconds
145 °F (62 °C)
less than 3 seconds
150 °F (65 °C)
approx. 1.5 seconds
155 °F (68 °C)
approx. 1 second
Greentherm T9900 SE/i – 6 720 813 635 (2019/03)
1)

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Greentherm t9900 se 199Greentherm t9900 se/i 199