Regulations; Installation (Only For Approved Contractors); Important Information - Bosch Therm 4000 S Installation And Operating Instructions Manual

Regulations

Never use aggressive or corrosive cleaning
agents.
4 Regulations
The currently applicable European standards must be
observed. Installation, repairs and maintenance must only be
carried out by approved contractors.
The appliance installation must meet the requirements of
EN1949 standard.
5 Installation (only for approved
contractors)
DANGER: Risk of explosion!
▶ Always close the gas isolator prior to
commencing any work on gas-carrying
components.
The installation, electrical connection, gas
connection and the connection of the air
suction and flue pipes, as well as the initial
commissioning, must only be carried out by
approved contractors.
The device may only be used in the countries
that are given on the data plate.
NOTICE: Damage to the device!
Leaking connections.
▶ Do not put the device down on the floor
with the connections facing
downwards, so that the metal threads
are not damaged.
NOTICE: Appliance malfunction!
▶ Always place the appliance front cover
after installation or after maintenance
work.
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CAUTION:
▶ The water inlet temperature for the
device must not exceed 60 °C.
▶ If the water inlet temperature reaches
higher values, a 3-way valve or a
thermostatic valve (set for values below
60 °C) must be fitted upstream of the
device.
▶ In the case of solar systems, ensure that
the system has an expansion vessel.
Solar system (thermosiphon)
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Fig. 11 Solar system
[1] Cold water
[2] Water inlet
[3] Thermostatic valve
[4] Expansion vessel
[5] Safety assembly
In the case of water outlet temperatures
above 45 °C, the use of a decalcification
system is recommended.
5.1

Important information

▶ Prior to installation, consult your gas supplier about wall-
mounted gas boilers and ventilation at the installation
location, and also observe all the relevant standards.
Water quality
The device is used for DHW heating for domestic purposes in
accordance with the relevant regulations. Use of a water
treatment system is recommended in areas with a high level of
water hardness. The water parameters, which have an effect on
limescale, must generally comply with the values given in
Tab. 12.
Therm 4000 S – 6 720 815 298 (2017/05)
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6720608999-11.6V
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