2.2.3 Unit operating conditions
Accepted limits for unit operating are the following:
•
Temperatures: +15 °C to +35 °C (59 °F to 95 °F)
•
Relative humidity: 5% RH to 95% RH “Absence of condensation”
•
Air pressure: 800 hPa to 1060 hPa (12 psi to 15 psi)
•
Altitude: < 2000 m (less than 1.25 miles)
2.3 Plumbing requirements
2.3.1 Air supply
NOTE
Take into account national and international regulations concerning the
quality of dental air.
The air pressure used must be between 550 - 900 kPa (5.5 – 9 bar) (80 -
130 psi) with a flow of at least 55 l/min. The dew point must be no greater
than −20 °C at atmospheric pressure.
A compressor with an air dryer must be used to ensure that the air is clean,
dry and oil free. The air may contain a maximum of 100 particles per cubic
meter when the particle size is 1 - 5 μm, and oil contamination must be max.
0.5 mg/m
3
.
2.3.2 Water supply
The requirements for inlet water are as follows:
•
Water pressure: 300 - 900 kPa (3 - 9 bar) (44 - 130 psi)
Note the differing water pressure requirements for Planmeca WEK and
Planmeca ActiveAqua below.
•
Water flow: At least 4 l/min
•
pH value: 6.5 – 8.5.
•
Hardness: ≤ 8°dH
If the water has a hardness greater than 8 °dH, a water conditioner must
be fitted to the water inlet pipe. Hard water can very quickly ruin a dental
unit.
Note the differing water hardness requirement for Planmeca ActiveAqua
below.
•
The water must be drinking quality and free of all particles larger than 5
µm that could block the small tubes in the dental unit. If the water supply
contains particles larger than 5 µm an accessible filter (5 micron) must
be fitted to the water inlet pipe.
NOTE
Water is also used for suction line rinsing and suction line cleaning. Suction
rinsing is set as default to 300 ml per minute.
NOTE
The water supply line must be equipped with a backflow prevention valve
according to local requirements. E.g. in most European countries according
to EN1717 standard, BA Type backflow preventer.
2 Pre-installation requirements
4 Planmeca Compact i3
Installation manual
Содержание Compact i3
Страница 1: ...PlanmecaCompact i3 installation manual EN 30020733 30020733...
Страница 68: ...12 Installing suction element 64 Planmeca Compact i3 Installation manual...
Страница 104: ......
Страница 105: ......