Vaillant auroTHERM exclusive VTK SERIES Installation Manual download pdf (Page 35)

Flat roof fitting and installation 5

0020077994_02 auroTHERM exclusive Installation manual 35

5.1.1.3 Transporting collectors

1. To protect the collectors against damage, always trans-

port them when they are standing horizontally.

2. Transport the collectors to the roof using suitable aids.

5.1.2 Complying with clearances and installation

clearances

During storms, strong wind forces occur along the edges of

flat roofs.

▶ When defining the installation position, maintain an edge

clearance of at least 1 m from the roof edge.

5.1.3 Selecting suitable connection

▶ Select the appropriate connection for the collectors.

▶ Ensure that the solar fluid flows through the collectors

either from left to right or from right to left.

Conditions: Number of VTK 1140/2 collectors: 1 … 7

max. 7 x VTK 1140/2

▶ Switch up to 7 VTK 1140/2 units in series (according to

the 14 m² aperture surface area).

Conditions: Parallel connection, aperture surface area: ≤ 7 m²

▶ Always connect as many collectors as possible in series,

even when several collector rows are arranged on top of

each other.

Note

Up to an aperture surface area of 7 m²

(accordingly for 3 pcs VTK 1140/2 + 1 pc

VTK 570/2), you must switch the collectors

in series.

Conditions: Parallel connection, aperture surface area: ≥ 14 m²

▶ Set up several parallel collector rows and connect these

hydraulically in parallel.

▶ Always connect as many collectors (at least 7 m²) as

possible in series.

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Vaillant auroTHERM exclusive VTK SERIES Installation Manual Page 35