Exaco HOKLARTHERM Riga XL 5, Руководство по сборке

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Auto Opener and Piston Troubleshooting:
How does the auto opener and piston work?
The black piston cylinder is filled with a mix of oils that naturally expand around 73 degrees. As the oil
expands, it will begin to push out the rod of the piston and open your window. The springs and the
weight of the window will pull it shut when the temperature drops. Please note that if the piston is not
in the opener assembly, it will not retract on its own (it is the pressure of the springs which cause the
retraction).
Here’s a few things to check for on the pistons:
Is the piston moving at all? To test, remove the piston and place in ice water for 15 minutes, push the
rod in and measure the length. Place in hot water for 15 minutes (above 90 degrees). Measure the
distance – did the rod push out? If so, your piston is working.
Does the piston rod move in and out smoothly? The manufacturer recommends oiling them regularly
(2 to 3 times/year) with a light oil such as olive oil or WD40. Sometimes oiling them will help get them
moving if they are stuck.
Were the pistons ever under pressure? If the opener and piston are attached while there was a weight
or lock/sash lock holding the window shut, the piston can burst open and release the paraffin oil inside.
This can also happen if they are stored in a tight container that doesn’t have enough room for them to
expand. If a piston has burst, this is usually evident by visible oil, a gash in the side of the piston – or the
rubber stopper in the end might have popped out.
Does everything look intact on your opener?
x
There is a cast metal T piece that
occasionally breaks – see pictures to the
right.
x
Sometimes the arms of the opener are
“torn” or twisted. This can happen when
a huge wind gusts pulls the window
further than the opener can handle (can
be prevented with wind cables) OR
someone thought the opener was a
handle to open the window and has
pulled on the piston to try to open the
window.
If you are installing in a Riga greenhouse , please check the angle at which the actual opener is installed.
See the next page regarding the opener installation in a Riga greenhouse. If installed incorrectly,
pressure builds in the piston and can make it difficult to open the vent. This can also make pressure
build up in the piston until the window suddenly “pops” open – or if you slightly push the window it
opens suddenly.
If you are unsure of any of the above, a photo can help us diagnose the issue. Please send us photos of
your opener installed with the piston threaded into the holder. Also include a photos of the imprint
near the end of piston, which will have the manufacturer’s name and a date stamped into the black
sleeve. We need this to file a warranty claim with the manufacturer and replace your piston.
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