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Operation Instructions; Digital Display - Description; Before Commissioning The Appliance; Switching The Appliance On/Off - Bosch Therm 4000 S Installation And Operating Manual

Gas instantaneous water heaters
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10 | Operation instructions

3
Operation instructions
▶ Open all the water and gas locking
devices.
CAUTION: Burns!
In the flue exit area, high temperatures may
be reached.
▶ Do not touch the flue exit area while in
operation.
Fig. 4
3.1

Digital display - description

1
2
Fig. 5
Digital display
[1] ON/OFF button
[2] Programming button
[3] LCD panel
[4] Feed button
[5] Return button
6 720 819 528 (2016/02)
6720806426-06.1V
3
4
5
6720806146-02.1V
3.2

Before commissioning the appliance

CAUTION:
▶ The initial start-up of the water heater
must be done by a qualified contractor
who will provide the customer with all
the information required for the proper
operation thereof.
▶ Check that the type of gas indicated on the rating plate is
the same as that used in the room.
▶ Connect the appliance to the electrical current.
▶ Open the gas shut-off valve of the installation.
▶ Open the water shut-off valve of the installation.
3.3

Switching the appliance on/off

Connect
By default, the heating temperature of the
water is 42 °C.
▶ Press the button
The cover shows the desired water temperature.
Fig. 6
Disconnect
▶ Press the button
.
6720806146-03.1V
.
Therm 4000 S

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