Decommissioning 8; Temporary Decommissioning; Permanently Decommissioning - Vaillant aurotherm classic VFK 135/2 VD Installation Manual

3. Start up the solar plant again as described in the oper-
ating system instructions.
7.2.4 Replacing defective pipe insulations
1. Put the solar plant temporarily out of operation
(→ Page 37).
2. To avoid heat losses, replace any defective pipe insula-
tions.
3. Start up the solar plant again as described in the oper-
ating system instructions.
7.2.5 Disposing of defective pipe insulations
The pipe insulations consist largely of recyclable materials.
The pipe insulations must not be disposed of with normal
household waste.
▶ Observe the applicable regulations.
▶ Dispose of the defective pipe insulations properly.
8 Decommissioning
8.1

Temporary decommissioning

Caution.
Damage to the collectors.
Collectors that are not in operation may age
more rapidly due to long periods of high idle
temperatures.
▶ Only put the solar plant out of operation if
you are a competent person.
▶ Do not decommission the collectors for
more than four weeks.
▶ Cover any collectors that are not in use.
Make sure that the cover is securely
fastened.
▶ In the event of long periods of decommis-
sioning of the solar plant, dismantle the
collectors.
Caution.
Oxidation of the solar fluid.
If the solar circuit is opened when out of ser-
vice for a prolonged period of time, the solar
fluid may age more rapidly due to the penet-
rating oxygen in the air.
▶ Only decommission the solar plant if you
are a competent person.
▶ Do not decommission the collectors for
more than four weeks.
▶ Before decommissioning the system for a
prolonged period of time, drain the entire
solar plant and dispose of the solar fluid
properly.
▶ In the event of long periods of decommis-
sioning of the solar plant, dismantle the
collectors.
0020159946_01 auroTHERM classic Installation manual

Decommissioning 8

For repair or maintenance work, you can temporarily decom-
mission the solar plant. To do this, you must switch off the
solar pump.
▶ Temporarily decommission the solar plant, as described
in the operating system instructions.
8.2

Permanently decommissioning

8.2.1 Removing collectors
Danger!
Risk of burns and scalding!
In the event of solar radiation inside the units,
collectors can reach 200 °C.
▶ Avoid working in direct sunlight.
▶ Cover the collectors before starting work.
▶ You should preferably perform the work in
the morning.
▶
Wear suitable safety gloves.
Caution.
Damage to the collector and the solar
plant.
Improper removal may cause damage to the
collector and to the solar plant.
▶ Before removing the collectors, ensure
that a competent person or a Vaillant cus-
tomer service engineer decommissions
the solar plant.
Caution.
Environmental hazard due to solar fluid.
After the solar plant is decommissioned, the
collector is still filled with solar fluid which can
leak out during removal.
▶ During transport from the roof, seal the
pipe connections of the collector with the
red plugs.
1. Undo the hydraulic connections.
2. Undo the brackets.
3. Remove the collectors from the roof.
4. Remove the hydraulic connections.
5. Drain the collector fully into a canister through two con-
nections.
6. Close the collector connections.
7. Use adequate packing around the collectors.
8. Dispose of the collectors and the solar fluid.
8.2.2 Recycling and disposal
Your Vaillant collector consists largely of recyclable materi-
als.
▶ Observe the applicable regulations.
Disposing of collectors
You must not dispose of your Vaillant collector or any of its
accessories in normal domestic waste.
37