INSTRUCTIONS FOR USE DA 270, DA 370, DA 280, DA 380
UM_EN_DA270_DA280_DA370_DA380_m2015_2019-04_ver1.9 9 / 67
5
PRE-INSTALLATION REQUIREMENTS
Warning
Pre-installation and installation must be performed according to the applicable standards of the particular
country and in accordance with the valid documentation of the manufacturer, which is owned by each
authorized representative of DIPLOMAT DENTAL s.r.o.
Do not install in premises with a potential explosion hazard!
Caution
To avoid the risk of electric shock, device must be connected to the power supply with a protective earthing
Do not modify this device without prior authorization of the manufacturer.
5.1
Requirements for the installation of media
Floor
The floor must have a concrete foundation of at least 100 mm thickness. The slope of the floor must not exceed 1%. The
use of antistatic floor is recommended.
Water
Drinkable water with input pressure of
0,3 MPa
to
0,6 MPa
with the flowrate of min.4 l/min., without particles bigger than
50 µm
, which might clog the small cross sections of the pipes of the dental unit, must be used. If the water contains particles
bigger than
50 µm
, there must be introduced
50 µm
advance filter/strainer.
The water hardness must be less than 2,14 mmol/l.
The pH must be in the range of 6,5 to 8,5.
Maximal electrical conductivity of the water shall not exceed 2000
µS/cm.
Water must comply with the local regulations for drinking water.
Tubes made of Cu and/or PE are recommended.
Cooling of instruments using water from the central distribution
In the unit's central water distribution, there is included a shut-off valve and the valve to prevent reverse flow of water.
Requirements and recommendations:
•
If the central water is used for cooling of dental instruments, then it is necessary to install particle filter with precision
of
5 µm
before the water enters dental unit.
•
Hard water can lead to dysfunction of the dental unit.
If the water contains more than
50 mg
of
CaO/l
or
36 mg
of
MgO/l
, then it is necessary to include water softener
device (for adjusting the hardness of the water) connected at the input of the water distribution.
This water treatment device is required in case when distilled water is not used.
•
When there is a requirement to install the mount point for the sampling input water, the following diagram shows the
recommended location mount point for the sampling input water.
The said devices are not integral parts of the dental unit.
Connection diagram of input elements in dental unit (STN EN ISO 7494-2)
1 - Input water from an external water supply
2 - Mount point of inlet water
3 - Mount point for taking the samples of the input water
4 - Filter of water particles
5 - Manual shut-off valve
