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H WARNING:
Never shut off safety valves!
▶ Water may escape from the safety
valve at any time when the water is
being heated.
H WARNING:
Inspection/maintenance
▶ Servicing and repairs may only be
carried out by a trained and certified
installer.
▶ Immediately correct all faults to
prevent system damage.
▶ Use only Bosch spare parts!
H CAUTION:
Instruct the customer.
▶ Explain to the customer how the
appliance works and how to operate
it.
▶ Inform the customer that he/she must
not carry out any alterations or
repairs.
H DANGER:
Risk of electric shock!
▶ Ensure that only an authorized
contractor performs electrical work.
▶ Before performing electrical work,
disconnect the power and secure the
unit against unintentional
reconnection.
▶ Ensure the system has been
disconnected from the power supply.
Greentherm T9800 SEO 160/199 | SECO 199 – 6 720 817 281 (2018/12)
Key to symbols and safety instructions
H DANGER:
Risk of scalding at the hot water
fixture!
▶ When the water heater is in operation,
temperatures in excess of 120 °F
(49 °C) can occur. To limit the
temperature at the tap, install a
thermostatic DHW mixing valve.
▶ Water heated for washing the laundry,
dishes and for other cleaning
purposes can cause scalding and
permanent injuries.
▶ Children, elderly, and handicapped
persons are more likely to be
permanently injured by hot water.
Never leave such individuals in the tub
or shower unattended under any
circumstances. Children must not be
allowed to operate hot water faucets
themselves or to fill a bathtub.
▶ If the building has occupants in the
above groups who operate hot water
faucets, or state laws / local
ordinances stipulate specific water
temperatures,
take the following precautions:
– Use the lowest possible
temperature setting.
– To prevent scalding, install a
tempering device, such as an
automatic mixing valve, at hot
water tap or water heater. Select
and install the automatic mixing
valve in accordance with the valve
5
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