Sirona Dental Systems GmbH 1 Preparations
Installation Requirements C8+/C8+Tu r n
60 28 000 D3417
D3417.021.04.11.02 7
English
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Water quality
Lime deposits and corrosion residues in tap water can lead
to the following malfunctions:
• Premature clogging of the filters in the unit
• Rapid clogging of the fine water paths and jets in the
treatment instruments
For these reasons, the following points must be observed:
• Permitted water pressure: 2.5 bar (36.25 psi) to 6 bar
(87 psi)
• Permitted minimum flow volume: 3 l/min
• For water hardness (total hardness) of 2.2 mmol/l (=
12° dH ), install water softeners.
Set the blend hardness to 1.4 mmol/l (= 8° dH).
• Install a conventional fine filter; fineness: > 80 µm (0.08
mm).
• Installation must be performed in compliance with the
recommendations of the national installation requirements (e.g. EN 1717/DIN 1988).
• The water quality must comply with the national requirements for drinking water.
• The connection must be made to cold water.
• When laying the water pipe to the treatment center,
comply with the following instructions to reduce the
quantity of micro-organisms in the feed pipe:
– Avoid long stub lines to the treatment center.
– Carry out the installation so that, where possible,
other main consumers (such as the sink) are fed
from the same line downstream of the treatment
center connection.
– Avoid laying the supply line parallel to hot water
pipes.
• Observe EN 1717 for the protection of public drinking
water.
Provided a disinfection system is also installed, the
treatment center fulfills the requirements of EN 1717
and of the DVGW (German Technical and Scientific Association for Gas and Water). It can be connected directly to the public drinking water system.
Air quality
The air for driving the turbines, for cooling the drives and for
the cooling spray must be free from oil, dry and hygienically
faultless.
Suction pipe
Install steam trap K.
With a vacuum of pu >0.18 bar back pressure, the treat-
ment center must be retrofitted with the "Vacuum limiter"
retrofit kit
(REF 59 68 826).
1.2 Media quality
N
>80 µm
Air
Suction machine
oil-free
Cold water
Dilution hardness
(drinking water quality)
1 bar = 100 kPa = 14.5 psi