Vaillant aurotherm classic VFK 135/2 VD Installation Manual page 33

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5.2.3.1 Vertical collector position
Conditions: Number of collectors: 4 ... 6, Connected on opposite sides
1
▶ Insert the flow (outlet) (1) on one side in the upper lat-
eral opening and insert the return (inlet) (2) diagonally
opposite this in the lower lateral opening.
▶
Secure the connections with the clamps.
1
▶ Install the plugs (1) at the bottom of the collector.
▶
Install the plugs (2) at the top of the collector.
▶
Secure the plugs with the clamps.
▶
Connect the collector flow and return to the system with
the connection tubes.
▶ Check the connections for tightness.
▶ Select the opening in the collector field that is nearest to
the flow connection.
▶
On the selected collector, use a screwdriver (1) to push
the rubber stopper for the temperature sensor through to
the marking.
▶ Do not remove the rubber stopper.
▶
Push the temperature sensor through the rubber stopper
until you can feel significant resistance (2).
0020159946_01 auroTHERM classic Installation manual
Flat roof fitting and installation 5
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