Shutdown
Gaz 6000 W – 6720866248 (2019/07)
6
4.3 Setting the flow temperature
The maximum flow temperature can be set between 40 °C and
approx. 82 °C. The current flow temperature is shown on the display.
▶Press key.
The set maximum flow temperature is displayed.
▶Press + key or – to set the required maximum flow temperature.
The setting is stored after 3 seconds. The display shows the current
flow temperature.
You can find typical maximum flow temperatures in Tab. 2.
Heating mode is blocked in summer mode (on the display appears ).
If the burner is active in heating mode, the following symbols appear
and on the display.
Table 2 Maximum flow temperature
4.4 Setting the DHW heating
4.4.1 Adjust the domestic hot water temperature
The DHW temperature can be set between 35 °C and 60 °C.
▶Press key.
The set DHW temperature is displayed.
▶Press + key or – to set the required DHW temperature
The setting is stored after 3 seconds. The display shows the current
flow temperature.
When the burner is active in DHW mode, the symbols appear and
on the display.
WBN 6000-.. CR appliances: measures for hard water
To protect against increased limescale and resulting service work:
In hard water with a hard hardness range (≥ 15°dH / 27°fH/2.7 mmol/l)
▶ Set the DHW temperature to less than 55 °C.
4.5 Setting summer mode
The heating pump and consequently central heating are switched off.
The DHW and power supply for the heating control device and timer are
retained.
NOTICE:
Heating system at risk through frost.
In summer mode, only the device is protected against frost.
▶ Observe frost protection measures where there is a risk of frost
( Chapter 5.2).
To activate summer mode:
▶Press key.
▶Press – key until on the display appears.
The setting is stored after 3 seconds. The display permanently shows
.
For further information, see the heating controller operating
instructions.
5 Shutdown
5.1 Switching off/standby mode
The device has an anti-seizing function which prevents the heating pump
and the 3-way valve seizing up following long periods of inactivity.
The anti-seizing function remains active during standby mode.
▶ Switch off the device with the K key.
The display shows only the symbols and .
▶ If the device is taken out of operation for a long period: Bear in mind
frost protection ( chapter 5.2).
5.2 Setting frost protection
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, boiler
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:
Frost protection for the heating system is only ensured if the heating
circuit pump is operational and is pumping heating water through the
entire system.
▶ Leave the heating switched on.
▶ Set the maximum flow temperature to at least 40 °C ( chapter
4.3
).
-or- If you want to leave the appliance switched off:
▶ Ask your heating contractor to mix antifreeze (see installation
instructions) into the heating water and drain the DHW circuit.
For further information, see the heating controller operating
instructions.
Device frost protection:
The device frost protection function switches the burner and
heating pump on when the temperature in the installation room
(at temperature sensor for heating flow) falls below 5 °C.
This prevents the boiler freezing up.
▶ Activate summer mode ( chapter 4.5) or set the device to standby
mode ( chapter 5.1).
NOTICE:
Heating system at risk through frost.
In summer/standby mode, only the device is protected against frost.
Frost protection with OpenTherm controllers:
▶ In order to protect the heating system against frost, adjust the
controller to a minimal setback temperature of 10 °C.
The controller must not be switched off or set to stand by.
Flow temperature Sample application
(Symbol appears) Summer mode
approx. 75 °C Radiator heating system
approx. 82 °C Convector heating system
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