Cattani MAXI SMART, Operator'S Handbook Manual

Page: 39 / 152

ENGLISH
It is advisable to only install in parallel identical machines, with the same fl ow rate and the same
head. Two or three suction units in parallel (fi g. F) will double or triple the fl ow rate, provided that the
diameter of the main suction line for each suction unit added is creased by ten millimetres. Similarly,
the diameter of the exhaust air duct should be increased. Maxi Smart comes complete with all the
accessories needed for installation in parallel, therefore no uni-directional valves are necessary nor
additional control units or peripherals. When two or three suction units are connected to the main
duct, it is necessary to connect in parallel the signals (12) arriving from the various dental chairs or
from the control rooms of the clinic. When installing suction units in parallel, take care not to invert
the cables of terminals no.09-05 in the machines in parallel: see wiring diagram (fi g. C, page 141-
144). With a number of suction units in parallel a stoppage of one of the units may go undetected.
To prevent this, terminals 06 and 07 of the control unit (clean contact) (fi g. C, page 141-144) should
be connected to a remote alarm in a visible area of the clinic. Maxi Smart units in parallel will be
more effi cient and provide greater power savings when operating simultaneously, regardless of the
demand. Removing power from one of the suction units will not save power while it reduces the
performance of the suction units still in operation.
12
• Parallel installation
37
• Parallel installation
Draw. F