OLAER OILTECH LAC Manuel D'installation Et D'entretien page 28

Connection of cooler matrix
Connect the cooler matrix using flexible
hydraulic hoses both to and from the
cooler. Make sure that all connections
and hoses are sized according to the
system pressure, flow, temperature and
fluid.
Connect the cooler matrix as illustrated
below. See Figure 4 or Figure 5.
A Inlet.
B Outlet for standard and S by-pass,
single-pass.
C Outlet for T by-pass, two-pass.
D Thermo contact connection.
Dimensions on connections are cooler
matrix size dependent.
Maximum permitted fluid temperature in
the cooler matrix: 120 °C.
Flow chart, see Figure 6.
Important
The cooler matrix is designed for
maximum dynamic working pressure
14 bar. When the cooler is installed
in a return line, there should be no
pressure spikes. If this is not
possible, an offline cooling system
should be used.
Electrical connection
Danger
Risk of electrical shock. All
electrical connections must be
made by a qualified electrician!
Prior to connecting the motor to the
electricity supply system, make sure the
information on the motor label
corresponds to the line voltage and
frequency. The motor should be installed
according to general and electrical safety
rules and should be made by a qualified
electrician.
Precaution
Be careful when connecting.
Improperly made connections,
damaged cables, etc. could cause
components to become live or
result in the incorrect direction of
rotation of the electric motor.
• Connection of a single phase outer-
rotor motor: Connect the live to L
(blue), neutral to N (black) and
ground to PE (yellow/green). See
Figure 7.
• Connection of three phase outer-
rotor motor. See Figure 8 or
Figure 9.
• Connection of three phase inner-
rotor motor. See Figure 10.
Example for motor:
220-240 V D/380-420 V Y.
The direction of rotation of three phase
motors is altered by changing connection
of two phases.
If the cooler is fitted with a thermo
contact, use a relay if the current load
exceeds the maximum load for the
thermo contact.
Note! A motor overload protection is
recommended.
Note! Some motors are fitted with
plugged holes, which can be
used for draining condensed
water.
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