Harnisch+Rieth D-LE 255 S User manual

Maschinenbau
Werkzeuge
Laborgeräte
Operating instructions
Machine designation: Single workplace extraction unit
Machine type: D-LE 255 S
Machine no.: .......................
Keep for future reference!
Hausanschrift:
Harnisch+Rieth
GmbH & Co. KG
Küferstr. 14 - 16
D-73650 Winterbach
Telefon
+49 7181 / 96 78-0
Telefax
+49 7181 / 7 31 39
+49 7181 / 96 78-17
E-mail:
[e-mail]
http://www.hr-dental.de

D-LE 255 S - 25.04.2013 / Vers.: 2.5
1
Dear customer,
Thank you for the confidence you have placed in us by purchasing this extraction unit.
For this unit to be of service to you for many years to come, please take the time to
read these operating instructions carefully, especially before using the unit for the first
time.
Contents
1 Safety........................................................................................................................... 2
1.1 Intended use ...................................................................................................... 2
1.2 Possible dangers................................................................................................ 2
1.3 Approved operators............................................................................................ 2
1.4 Safety measures at the site of operation............................................................ 3
1.5 Marking of safety references contained in these instructions ............................ 3
2 Initial/setting into operation ...................................................................................... 3
2.1 Unpacking the single workplace extraction unit ................................................. 3
2.2 Brief description of the unit and identification of the unit components ............... 4
2.3 Initial/setting into operation ................................................................................ 5
3 Operation..................................................................................................................... 6
3.1 Checking the filter unit........................................................................................ 6
3.2 Air flow regulation............................................................................................... 6
3.3 Automatic deactivation device and filter control lamp ........................................ 6
4 Cleaning/maintenance ............................................................................................... 7
4.1 Changing the filter bag ....................................................................................... 7
4.2 Cleaning (changing) the ultra-fine filter .............................................................. 7
5 Electrical fuse protection........................................................................................... 8
6 Technical data............................................................................................................. 8
7 Warranty conditions ................................................................................................... 9
8 EC declaration of conformity................................................................................... 10

2
D-LE 255 S - 25.04.2013 / Vers.: 2.5
1 Safety
1.1 Intended use
The single workplace extraction unit D-LE 255 S is intended for use in dental
laboratories for extracting dusts, which are created by dust generating units. Never use
it for suctioning liquids.
The suction apparatus is equipped with a filter of dust class M according to DIN EN
60335 (maximum leakage < 0.1 %).
Unauthorized modifications and additions are not permitted for safety reasons!
The conditions for operating, maintaining and cleaning the unit, as described in these
operating instructions, must be strictly adhered to.
Caution The unit is not designed as a medical appliance!
Use on human beings is prohibited!.
1.2 Possible dangers
The incorporated extraction unit should not be used for suctioning potential ignition
sources or inflammable gases.
Before maintenance work, cleaning and/or repair work you should switch the unit off at
the main switch and disconnected from the mains supply (i. e. the mains plug should be
pulled).
As the dusts to be extracted are more or less hazardous to health, special care should
be taken that the filter bag and ultra-fine filter are properly inserted and that they are not
damaged!
Before accessing any of the incorporated electric components, the unit should be
disconnected from the mains supply!
1.3 Approved operators
The operator of the machine should make sure that the operating instructions are
accessible to the operating personnel. The operator should make sure that they have
been read and fully understood by the operating personnel. Only then should they be
allowed to operate the machine.

D-LE 255 S - 25.04.2013 / Vers.: 2.5
3
1.4 Safety measures at the site of operation
(See fig. 1, page 4)
The air flowing through the air outlet (45) should be allowed to flow freely.
The distance between the air outlet and the next obstacle (e. g. wall or piece of
furniture) should be at least 10 cm.
The unit may only be installed and operated in cabinets or rooms with low volumetric
capacity if adequate aeration is provided for and if the ambient temperature only
increases by max. 10 °C when the extraction unit is running.
Foreign bodies should not be inserted through the ventilation openings of the unit.
Danger The unit is not suitable for use in rooms where special conditions prevail (e.g. corrosive
or explosive atmospheres).
1.5 Marking of safety references contained in these instructions
Note Refers to tips and other particularly helpful pieces of information.
Caution Refers to particular ways of operation or handling, the non-adherence of which can lead
to malfunctioning, damages or other kinds of trouble.
Danger Refers to dangerous situations, in which injuries can occur.
2 Initial/setting into operation
2.1 Unpacking the single workplace extraction unit
1. Put the carton onto a flat surface.
2. Remove the upper packaging material.
3. Press the packaging material away from the device and grasp the lower edge of the
device.
4. The unit should be lifted by two people out of the carton (approx. 25 kg).

4
D-LE 255 S - 25.04.2013 / Vers.: 2.5
2.2 Brief description of the unit and identification of the unit components
The D-LE 255 S single workplace extraction unit comprises a powerful, noise absorbing
high-pressure blower and is equipped with a potentiometer for regulating the air flow,
an automatic deactivation device and a change filter display.
The D-LE 255 S single workplace extraction unit is intended for use with spot blasting
units, saws and similar dust generating units.
When accordingly equipped with an extraction hose installation or an extraction pipe
installation in combination with our S-1 electronic control unit as well as our W-2
extraction switch it is possible to connect and individually to operate several dust
generating units to a single D-LE 255 S extraction unit. The S-1 unit switches the D-LE
255 S extraction unit on automatically as soon as one of the dust generating unit is
activated. For further details please contact our office at H + R.
The dust is collected in a double-ply disposable filter bag. Depending upon the types of
work materials being processed it can collect up to 10 kg of dust.
The large-area fine-particle filter that is downline to the disposable paper filter bag has
a maximum leakage of < 0.1 %.
3
2
19
2
30
27
12
45
15
32
20
Fig. 1: Front left view
2 2 toggle-type fasteners
3 Lid
12 Main switch
15 Mains connection cable
(230 volts/ 50 Hz)
19 Control lamp “Change filter“
20 Assembly lid
27 Control lamp “service“
30 Regulator for suction air flow
32 3x Knurled screws
45 Air outlet