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Vitotronic 300, GW6B Operating
Starting the Heating System
Legend
A ON/OFF switch
B Fuses
C ON indicator (green)
D Fault indicator (red)
E Emissions test switch (only for service purposes)
Ask your heating contractor about the following:
H Boiler and relevant control unit type
H Level of the required system pressure
H Position of the following components:
– Pressure gauge
– Gas shut-off valve
– Vents
1. Check the heating system pressure at the pressure
gauge. If the pressure of the heating system is too low,
top up the water or notify your heating contractor.
2. Open the gas shut-off valve on every boiler.
3. Switch ON the power supply, e.g. at a separate MCB/
fuse or a mains isolator.
4. Switch ON the ON/OFF switch on every control unit.
After a short time, the home screen (see page 10)
or the default display (see page 12 and 14) appears.
The green ON indicator illuminates. Your heating
system and, if installed, your remote controls are
now ready for use.
Start-up/Shutdown
15
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