STIEBEL ELTRON WPE-I 04 HKW 230 Premium, Руководство администратора по эксплуатации и установке

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Installation
14 | WPE-I H(K)W 230 Premium www.stiebel-eltron.com
f
Ensure that the safety valve drain is open to the outside.
f Install the safety valve drain with a constant fall to the dis-
charge outlet. When installing the drain, never kink the drain
hose.
9.6 Oxygen diffusion
!
Material losses
Do not use open vented heating systems. Use oxygen
diffusion-proof pipes in underfloor heating systems with
plastic pipework.
In underfloor heating systems with plastic pipes that are per-
meable to oxygen and in open vented heating systems, oxygen
diffusion may lead to corrosion on the steel components of the
heating system (e.g. on the indirect coil of the DHW cylinder, on
buffer cylinders, steel radiators or steel pipes).
f With heating systems that are permeable to oxygen, separate
the heating system between the heating circuit and the buff-
er cylinder.
!
Material losses
The products of corrosion (e.g. rusty sludge) can set-
tle in the heating system components, which may re-
sult in a lower output or fault shutdowns due to reduced
cross-sections.
9.7 Filling the heating system
Heating water quality
Carry out a fill water analysis before filling the system. This analy-
sis may, for example, be requested from the relevant water supply
utility.
!
Material losses
To avoid damage as a result of scaling, it may be neces-
sary to soften or desalinate the fill water. The fill water
limits specified in chapter "Specification / Data table"
must always be observed.
f
Recheck these limits 8-12 weeks after commission-
ing and as part of the annual system maintenance.
Note
With a conductivity > 1000 μS/cm, desalination treatment
is recommended in order to avoid corrosion.
Note
Suitable appliances for water softening and desalinating,
as well as for filling and flushing heating systems, can be
obtained from trade suppliers.
Note
If you treat the fill water with inhibitors or additives, the
same limits apply as for desalination.
Filling the heating system
!
Material losses
f Never switch on the power before filling the system.
!
Material losses
High flow rates or water hammer can damage the ap-
pliance.
f
Fill the appliance at a low flow rate.
In the delivered condition, the diverter valve of the MFG is posi-
tioned at the centre. This ensures the heating and DHW circuits
are filled equally. If the power is switched on, the diverter valve
automatically moves into the central heating position.
If you intend filling or draining the system later, first place the
diverter valve into its centre position.
f
Activate the parameter.
Parameter
DRAIN HYD (DIAGNOSIS /.RELAY TEST SYSTEM)
1
26
0
3
01
1
75
8
1 Drain, heating side
f Fill the heating system via the drain.
9.8 Venting the heating system
D
00000
37
50
2
1
1 Air vent valve
f Vent the pipework by pulling up the red cap on the air vent
valve.
f Close the air vent valve after the venting process.