Technical data

Central vacuum systems
Planning of the
breather pipe
The central vacuum cleaners Disan have a correct
air filtering, with environmental protection, and so
the breather pipe is not strictly necessary. However,
for hygienic reasons, we suggest to install it. The
breather pipe shall have a larger diameter of the
main line of the system.
In order to obtain maximum suction performances,
the tubes have to be installed in an air-tight way.
Clutch fittings are not sufficiently tight in the long
run and for this reason we advise against using
them.
We strictly advice against:
•
fittings with rubber gaskets or with O-rings
•
spigot-and-socket joint fittings
•
hot-welded fittings
Please notice: using the types of fittings listed
above causes the following problems:
•
depression reductions due to the progressive
decrease in tightness of the rubber gaskets or
O-rings;
•
clogging due to step-like obstacles or burrs inside
the tubes;
•
speed-reduction of the air-flow due to step-line
obstacles or slight defects inside the tubes;
•
whistles due to air-infiltrations inside the tubing
caused by the progressive decrease in the
tightness of the rubber gaskets or O-rings;
•
whistles due to steps inside the tubes.
Characteristics of the
fittings
Please notice: planning the tubes so that the suction
flow follows a horizontal or sloping route. Avoid long
upwards suction flows.
Use only 45° or 90° wide radius sweep ell.
Exception: there is only one 90° (narrow radius)
sweep ell: which is positioned behind the backup
box.
Use only 45° or 90° wide radius sweep.
“T” sweeps slow down the flow and cause clogging.
8
•
Plan the inlet valves in the rooms where you
intend to vacuum the water. Connect between
them the inlet valves with a piping diameter 50
mm, to join to the pipe fittings equipped with the
wet pick-up.
• Plan a runner cap with a minimum diameter of
40 cm, to be placed in front of the separator,
where the vacuumed water will be carried.
• Connect the wet pick-up to the main pipe line of
the system.
Please notice:
•
In the rooms where one intends to vacuum both
dry and damp, install 2 separate inlet valves
•
The water vacuum system can be used only by
a person at time
YES
YES
NO
NO
YES
YES
YES
NO
NO
NO
YES
Z 850
Z 166
Z 167