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Operating instructions
Therm 4000 S – 6 720 815 298 (2017/05)
3 Operating instructions
3.1 Digital display - Description
Fig. 6 Digital display
[1] ON/OFF key
[2] Program key
[3] LCD display
[4] Forwards key
[5] Backwards key
3.2 Before commissioning the device
▶ It must be ensured that the gas type, which is given on the
data plate, corresponds to that which is available at the
installation location.
▶ Connect the device to the power supply.
▶ Open the gas isolator on the system.
▶ Open the water tap on the system.
3.3 Device ON/OFF
Switching on
▶ Press the key.
The display shows the desired DHW temperature.
Fig. 7
Switching off
▶ Press the key.
3.4 Setting the temperature
▶ Press the or keys, until the desired value is set.
Fig. 8
If the temperature is set to the lowest possible value in line with
the particular requirement, the energy and water consumption
Open all shut-off valves for gas and water.
CAUTION: Risk of burns!
The front can become very hot in the area of
the burner, and there is a risk of burns if it is
touched.
CAUTION:
▶The instantaneous water heater must be
commissioned for the first time by an
approved contractor, who should
provide the customer with all the
required information for proper
operation of the device.
The DHW temperature is set as standard to
42 °C.
The temperature shown on the display
corresponds to the preset temperature.
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