Technical data

25
Central vacuum systems
Testing occurs after completing the laying of the
tubes and before laying the floor.
The purpose of the tests is in order to guarantee
that the tubes are not damaged and that everything
has been properly glued. Otherwise the system may
not be air-tight.
This is very important because:
•
even the smallest air infiltration into the tubing
causes a reduction in depression values and
airlosses;
•
after the laying of the floors, it is very expensive
to solve these problems.
Please notice: while laying the floors and plasters,
be careful not to damage the pipe line.
1. Get the vacuum cleaner tester Disan (code GE815).
Disan’s testing kit includes the vacuum cleaner and
all the fittings necessary for connection to the pipe
line. If you use a traditional vacuum cleaner, ensure
a perfect tightness using rubber couplings or similar
devices.
Disan’s testing-kit is composed of:
1 powerful vacuum cleaner equipped with a pre-
mounted inlet valve.
1 vacuum gauge
1 stethoscope
3 PVC reducers 100-50 mm/80-50 mm/63-50 mm
adapters
TESTING
While the machine is working, read the depression
value on the vacuum gauge.
Please notice: we suggest to measure the
depression at every test, because it can change from
site to site due to the different voltage.
3. Insert the hose fitting into the end of the pipe
line by using the most suitable fitting.
The end of the pipe line is the point where the central
vacuum cleaner has to be connected.
Please notice:
•
the vacuum cleaner must be connected to the
pipe line so that there won’t be any possibility to
have reduction of the depression value and
airlosses.
• Disan’s vacuum cleaner tester is equipped with
a thermostat which automatically switches off if
the motor gets overheated. After cooling(8-10
minutes) the vacuum cleaner switches on again
automatically.
2. Measure the depression produced by the
vacuum cleaner
Depression is measured by introducing the
corresponding vacuum gauge (code GE800) into
the end of the hose of the testing vacuum cleaner.
Z 200
Z 202
Z 201