Vaillant auroTHERM exclusive VTK SERIES Installation Manual download pdf (Page 29)

On-roof fitting and installation 4

0020077994_02 auroTHERM exclusive Installation manual 29

Installing the upper collectors

Conditions: Collector rows: 2 … 3

▶ Place the upper collector (1) into the central mounting

rail (2).

▶ Tightly screw in the clamping elements (3) of the cent-

ral rail.

Working materials

SW 13 spanner

▶ Install the collector row in the same way as for the first

collector row.

▶ Complete the collector row. (→ Page 28)

▶ Position the top mounting rails. (→ Page 28)

4.2.3 Installing hydraulic connections

Caution.

Lack of tightness due to incorrect ac-

cessories.

Incorrect accessories may result in lack

of tightness of the solar circuit and cause

material damage.

▶ Only work in the solar circuit with hard

soldered connections, flat seals, com-

pression fittings or press fittings which

have been approved by the manufac-

turer for use in solar circuits and at cor-

respondingly high temperatures.

Caution.

Risk of damage to the collectors as a

result of improper installation.

If the hydraulic connections are not in-

stalled properly, the stainless steel tubes

inside the collector may become damaged.

▶ When tightening the clamping ring con-

nection, hold a second spanner against

it.

1. Connect the collector flow and return to the system

with the connection tubes.

Conditions: System with collector sensor

▶ Insert the collector sensor into the opening provided on

the collector flow side ("hot side").

Note

In general, the collector sensor can be at-

tached to the right or left side of the col-

lector field because the collectors on both

sides have a corresponding opening.

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Vaillant auroTHERM exclusive VTK SERIES Installation Manual Page 29

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