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Operating the appliance
4
Operating the appliance
These operating instructions describe the operation of the gas-fired
condensing boiler. Depending on which user interface is used the
operation of several functions may not correspond to this description.
Therefore please also observe the operating instructions for the user
interface.
4.1
Switching on/off the appliance
Switching on
After initial power-up of the appliance, the appliance will initiate siphon
fill mode.
When
and the flow temperature appear alternately on the display,
the appliance remains at minimum heat output for 15 minutes to fill the
condensate trap in the device.
Switching off
NOTICE:
Risk of damage to the system from frost!
The heating system can freeze up after a prolonged period (e.g. during a
power failure, switching off the power supply, faulty fuel supply,
appliance fault etc.).
▶ Ensure that the heating system is in constant use (particularly when
there is a risk of frost).
Frost protection for the heating system is only ensured if the heating
pump is operational and is pumping heating water through the entire
system.
▶ Leave the heating switched on.
▶ Set the time control to constant ON and set the room thermostat to
12 °C.
The anti-seizing function is not active when the appliance is switched off.
The anti-seizing function prevents the heating pump and the diverter
valve from seizing up following long periods of inactivity.
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4.2
Control panel overview
1
2
3
4
5
6
Fig. 5
[1]
Display
(key: Heating mode on/off, set the maximum flow temperature
[2]
* key: Hot water mode, adjusting the hot water temperature
[3]
[4]
eco key: Toggle economy mode (pre-heat off)
[5]
ok key: Save settings
" key: Return/back
[6]
key: To navigate through menus and decrease settings
[7]
key: To navigate through menus and increase settings
[8]
[9]
Pressure gauge
Worcester 2000 – 6 721 814 552 (2019/09)
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