6 INSPECTING THE PIPE SYSTEM FOR TIGHTNESS
The bypass valve must be blocked for the duration of the inspection
using a piece of cardboard, for example [figure 2]. Start the central unit
with all wall inlets closed via the low voltage connector [figure 1;7] using
a piece of metal wire. If air is still escaping from the exhaust pipe after
approximately 10 seconds, there is a leak in the pipe system. The leak
must be located and repaired. Do not run the unit for more than 20
seconds with all of the wall inlets closed. If the installation is completely
airtight, the turbine will not receive any air, therefore overheating and
possibly incurring damage.
7 ACCESSORIES
7.1 PRE-SEPARATORS
The EE-20 is designed for vacuuming liquids, sand and coarse rubbish. If the system is equipped with a
dust bag, the EE-20 also enables the vacuuming of cooled-down ashes and fine dry dust.
Sticky substances and shards of glass may damage the pipe system. The central unit
must not be used for vacuuming liquids or substances other than normal dust unless
a suitable pre-separator is used.
7.2 DUST BAG INSTALLATION KITS
The central units can be equipped with a dust bag. Dust bag
installation kits are available from all leading retailers. using
a dust bag is not obligatory, but it is recommended. Detailed
instructions for installation are supplied with the dust bag
installation kit.
When using a dust bag installation kit [figure 3], the dust bag
is replaced and the filter serviced as follows:
Remove the dust bag (9), undo the mounting nut (6) located
underneath the filter, remove the dust bag rest (10) and detach
the filter [see section Servicing the Filter].
7.3 FILTER COVER FOR THE CENTRAL
UNIT
The filter cover [figure 4] facilitates cleaning the filter and
lengthens the maintenance intervals and life of the filter. Using
a filter cover is not obligatory, but it is recommended. Never
use a filter cover in central units that are equipped with a
dust bag. Filter covers are available from all leading retailers
(sold in bags of 5).
24
Figure 2
6
10
9
Figure 3
Figure 4