Viessmann VITODENS 333, Инструкция по эксплуатации

Страница: 7 / 132

Filling the heating system
1. Check the charge pressure of the
diaphragm expansion vessel.
2. Close the gas shut-off valve.
3.
!
Important information
Unsuitable fill water
increases the level of
deposits and corrosion and
may lead to boiler damage.
& Thoroughly flush the
entire heating system prior
to filling with water.
& Only use fill water of pota-
ble quality.
& Soften fill water harder
than 20 cdH (3.58 mmol/l).
For suitable means of
water softening, see the
Vitoset pricelist.
&
An anti-freeze additive
suitable for heating sys-
tems can be mixed with
the fill water.
Fill the heating system at the fill
valve in the heating return (on the
connection set or on site).
(minimum system pressure >
0.8 bar).
Note
The diverter valve actuator will be
in the central position, and the sys-
tem will be completely filled, if the
control unit has not been switched
ON before the system was filled.
4. If the control unit had already been
switched ON before filling began:
Start the control unit and in code 1,
set coding address 2F:2.
The diverter valve will then be in its
central position.
Note
To call up code 1 and for setting the
coding address, see page 39.
Whilst filling is in progress, the dis-
play shows bF (constant tempera-
ture control unit) or Filling
(weather-compensated control
unit).
Continue filling the system.
5. Close the boiler fill & drain valve.
6. Set coding address 2F:0.
Further details regarding the individual steps
7
Initial start-up, inspection, maintenance
56
92
548
GB