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Dental units with WEK water disinfection system
2.3.3 Suction
2.4 Electrical requirements
2.4.1 Mains voltage
Installation manual
In dental units with Planmeca WEK water disinfection system, the pressure
range must be 300 - 600 kPa (3 - 6 bar) (44 - 87 psi).
The static vacuum must be at least 150 mbar. The vacuum pump must be
able to produce a flow of at least 550 l/min. when measured at the
installation position.
The suction line must be fitted with a suction calibrating valve, which limits
the maximum vacuum to 140 mbar.
NOTE
The below diagram presents air flow at cannula as a function of vacuum
pressure at the dental unit suction source connection point for available
suction systems.
Avoid using sharp bends or joints in the suction line. Seal all joints to avoid
air leakage. Care should be taken to avoid condensation, particularly when
the pipe is exposed to different ambient temperatures. Moisture traps must
be used if necessary.
The unit has been preset at the factory to one of the 3 different mains
voltage settings. Please check that the rating indicated on the type shield
corresponds to the local mains voltage.
CAUTION
Never connect the unit to the mains without first checking the voltage setting.
Incorrect voltage setting can cause damage to the unit electronics.
The possible voltage settings are:
2 Pre-installation requirements
Planmeca Compact i3
5
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