Viessmann AWT-AC 241.A04, Инструкция по установке и обслуживанию

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Check the connections for refrigerant
leaks:
■ All swaged connections of the refrig-
erant lines between the internal and
the external unit
■ All brazed joints and threaded fittings
of the refrigerant lines in the internal
and external units
Note
Work on the refrigerant circuit may only
by carried out by certified personnel
(according to EC Directives 842/2006
and 303/2008).
Filling and venting the secondary side
Unsuitable fill and top-up water increa-
ses the level of deposits and corrosion.
This can lead to system damage.
Observe VDI 2035 regarding quality and
amount of heating water, including fill
and top-up water.
■ Flush the heating system thoroughly
before filling.
■ Only fill with water of potable quality.
■ Soften fill water with a water hardness
above 16.8 °dH (3.0 mol/m 3 ), e.g. with
the small softening system for heating
water: See the Vitoset pricelist.
!
Please note
Avoid appliance damage.
Protect electrical components
mounted on the casing door from
escaping liquids.
1. Open any non-return valves installed
on site.
2. Check the pre-charge pressure of the
expansion vessel.
Technical guide
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5546 699 GB
Service