Decommissioning 10
0020077989_04 auroTHERM exclusive Installation and maintenance instructions
37
▶
Never clean the collectors with a high-
pressure cleaner.
Caution.
Material damage due to cleaning agent.
Cleaning agents may damage the surface
structure of the collector and decrease its
efficiency.
▶
Never clean the collector with cleaning
agents.
▶
Clean the collectors with a sponge and water.
9.4
Checking brackets and collector
components for firm seating
1.
Check the firm seating of all threaded connections.
2.
Tighten any loose threaded connections.
9.5
Checking the pipe insulation for damage
1.
Check the pipe insulation for damage.
Condition
: The pipe insulation is damaged.
▶
Temporarily decommission (
→
Page 37) the solar sys-
tem.
▶
Replace the damaged pipe insulation.
▶
Start up the solar system again.
10 Decommissioning
10.1
Temporarily 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.
For repair or maintenance work, you can temporarily decom-
mission the solar system. To do this, you must switch off the
solar pump.
▶
Temporarily decommission the solar system as described
in the operating instructions for the system.
10.2
Permanently decommissioning
Danger!
Risk of burns and scalding!
In the event of solar radiation inside the units,
collectors can reach 300 °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.
Danger!
Risk of burns from hot components!
The U tube, heat conducting plate and the
interior of the vacuum tubes become warm
as a result of solar radiation and may cause
scalding.
▶
Wear suitable safety gloves.
▶
Wear suitable protective goggles.
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.
