- 14 -
Mantematic K20S
Mantematic K20S_EN - 2010/04 - Ed. 01
2.4
MACHINES WITH WATERCOOLED CONDENSER
To make the machine run, a watercooled machine must be connected to running water supply,
or to a cooling tower.
Water must have a pressure of 0.1 MPa and 0.8 MPa (1-8 bar) at least, and a delivery at least
equal to the estimated hourly consumption.
Connect inlet pipe marked by plate "Water Inlet" to water supply installing a shut-off valve, and
outlet pipe marked by plate "Water Outlet" to a drain pipe, installing a shut-off valve.
2.4.1 Water valve adjustment
IMPORTANT
If water valve needs be reset, this operation will have to be carried out by skilled personnel,
only.
Valve adjustment must be carried out in such a way that no water fl ows when machine is off and
lukewarm water fl ows when machine is on.
NOTE:
Water consumption increases if temperature of entering water is above 20°C.
ATTENTION
Do not leave the machine in a room with temperature below 0°C
without fi rst draining water from the condenser.
2.5 ELECTRIC
CONNECTION
Before connecting the machine to the mains, check that machine voltage indicated in data plate
corresponds with the mains.
Insert a differential magnetothermal protection switch adequately sized to absorption capacity
required and with contact opening of 3 mm at least.
The machines are supplied complete with an electrical supply cable (fi ve conductor leads for the
three-phase machines and three conductor leads for single-phase machines). Connect the blue
conductor lead to the neutral phase.
IMPORTANT
Yellow/green ground wire must be connected to an adeguate ground plate.
2.5.1 Replacing the power cable
Should the machine main cable be damaged, it must be replaced immediately through one with
similar features.
Replacement shall be carried out by skilled technicians, only.
IMPORTANT
Direction of rotation
Il Beater rotation is anticlockwise
Reversal of rotation (only for three-phase machines)
Should direction of rotation be wrong, reverse it by exchanging two of the three phases which
start at the differential magnetothermal protection switch.
