NaceCare Solutions NTT2000 - Manual (Page 2)

2
Standard Dry Filters
The NTT 2000 is normally equipped with a 2 stage main filter assembly. This consists
of a red Filtrex filter providing 5.0 micron filtration and a white Permatex 0.5 micron
filter.
As these become loaded with dirt & debris during use, they should be removed
periodically and brushed to remove the gross soil. Both filters can be washed in mild
detergent & hung to dry.
Optional HEPA Filter Module
As an optional accessory, the NTT 2000 may be fitted with a HEPA filter module. When
this filter is used it must always be used with a Permatex filter as a pre-filter. Failure to
do so will drastically reduce the working life of the HEPA filter.
As a safety precaution in sensitive areas, it is possible to secure the HEPA filter module
to the powerhead by using split pins. These can be inserted through the holes in the
steel retaining toggles once they are closed.
The HEPA filter is capable of filtration to 99.97% even if the intake of the machine is
completely blocked.
The code for the replacement filter is NVM 25B. Replacement of the HEPA filter must
be carried out by qualified personnel.
Optional Wet Filter Assembly
The NTT 2000, while normally supplied as a dry only machine, may be fitted with a wet
filter assembly since it is equipped with by-pass type motors. This assembly includes a
float ball which rises up when fluid levels reach the maximum capacity of the vacuum
tank. When this occurs, the pitch of the vacuum motors increases indicting that the
vacuum should be turned off and the container emptied.
When using the wet filter assembly it is possible to place the main dry filters on top of
this assembly to protect the vacuum motors from any dry debris encountered during
wet cleaning operations.
If the machine is to be used with the optional HEPA filter module in a wet application, it
is essential that the main dry filter assembly is used. Otherwise the working life of the
HEPA filter will be drastically reduced.
Vacuum Tank (Nutec Drum)
The recovery tank of the NTT 2000 is made of galvanized steel to help prevent
corrosion. The intake is mounted so that debris enters in a tangential fashion to enable
"cyclonic" separation of dusts from the airstream. To remove fluids from the machine,