1 Preparations
Sirona Dental Systems GmbH
Installation Requirements C5
+
, C5
+
Turn
60 27 978 D3415
8
D3415.021.03.08.02
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 require-
ments (e.g. EN 1717).
•
The water quality must comply with the national re-
quirements 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 concerning protection of the public
drinking water supply. For details please refer to chap-
ter „Connection to the public drinking water supply” on
page 7.
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 on the bottom
connection, the treatment center must be retrofitted with the
"Vacuum limiter" retrofit kit (REF 59 68 826).
1.3 Media quality
N
>80 µm
Air
Suction machine
oil-free
Cold water
Dilution hardness
(drinking water quality)
1 bar = 100 kPa = 14.5 psi
