Vaillant auroTHERM VTK 570/2, Руководство по установке

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15 Installation manual auroTHERM 0020077994_00
Fig. 4.9 Sizes of the individual arrays
When collector arrays are connected in par-
allel, each individual array must have the
same aperture area.
Fig. 4.10 Stop valve in the collector supply line
a
Caution!
Danger of air locks!
If 3 or more collector arrays are con-
nected in parallel, a stop valve must
be fitted in the collector supply line
(hot side) of each individual array.
These will be used for venting the in-
dividual arrays during commissio-
ning. Only use the Vaillant stop
valve, Part No. 0020076784
a
Caution!
Danger of damage to the material as
a result of incorrect assembly!
With the valve closed or wrong valve
positioning, damaging of the collector
due to excessive pressure will be
possible. Never mount the stop valve
in the collector return. The stop
valve must be open during system
operation.
Before installation 4
GB