Installation; Handling - OLAER LDC Manual De Instruccion

OLAER/OA-Technik LDC AIR OIL COOLER |
DC-motor Use 2 pin connectors to connect the motor.
For supply current, see identification plate. Consult
OLAER/OA-Technik for motor overload protection (fuse).
For further information, see Technical specification.
Acoustic pressure level could reach 66-77 dB(A) at 1 m
distance depending on air oil cooler size under normal op-
erating conditions. An inappropriate location or operation
under extreme conditions could cause an increase in acous-
tic pressure level and a decrease in cooling capacity.
Identification plate
The identification plate of the air oil cooler is fitted on the fan
housing and contains the following information: See Figure 2.
A – Part number. B – Designation. C – Serial number.
D – Date of delivery (year and week, e.g. 1018, i.e. year 2010
and week 18). Replace a damaged or missing identification
plate as soon as possible.

Installation

Lifting
Caution
Risk of bodily injury. To prevent physical
harm when lifting the unit, use the correct lifting
technique. Make sure that all lifting devices are free from
damage and approved for the weight of the air oil cooler.
Mounting
The LDC air oil cooler can be mounted in any position.
However, an upright installation standing on its feet is
recommended. A free space corresponding to a minimum of
half the height of the matrix should be available in front of
and behind the air oil cooler to allow for optimal cooling
capacity and low acoustic power level. See Figure 3.
An inappropriate location or operation under extreme condi-
tions could cause an increase in acoustic pressure level and
a decrease in cooling capacity.
Precaution
Risk of bodily harm. Make sure that the
air oil cooler is securely fixed.
Connection of the cooler matrix
Connect the cooler matrix using flexible hydraulic hoses.
Make sure that all connections and hoses are sized according
to the system pressure, flow, temperature and type of oil.
Connect the hydraulic hoses to the cooler matrix as illustra-
ted below. See Figure 4.
A – Inlet.
B – Outlet for single-pass.
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C – Outlet for two-pass.
D – Thermo contact connection.
Dimensions on connections are cooler matrix size depen-
dent.
Connection chart, See Figure 5.
Important
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
motor label corresponds to specified direct current.
The DC motor must only be installed according to general and
electrical safety rules. Circuit diagram, see Figure 6.
cause components to become live or result in the incorrect
direction of rotation of the DC motor and fan.
Note!
size of the overload protection/fuse, depends on fan size
and air flow across the cooler. Contact OLAER/OA-Technik
concerning motor protection/fuse size.
The LDC air oil cooler can be fitted with a thermo contact for
temperature control. The fan will start automatically when
the preset temperature has been reached. Use a relay if the
current load exceeds 8 A at 12V and 6A at 24V.

Handling

Prior to initial start-up
We recommend that you proceed as follows prior to start-up:
1. Run the air oil cooler with the system fluid.
2. Filter the fluid before passing through the cooler.
See Technical specification for recommended fluid compatibility.
Prior to start up
Check that:
• all air oil cooler parts are free from damage
• the air oil cooler is correctly connected
• the fan rotates freely (use hand force)
The cooler matrix is designed for maximum
Precaution
Prior to connecting the DC motor to the
supply system, make sure the information on the
Precaution
Be careful when connecting. Improperly
made connections, damaged cables, etc. could
A motor overload protection is recommended. The
Precaution
Check that the air oil cooler is securely
fixed and correctly connected.
Precaution
Do not start the air oil cooler if there is
a risk of damage to person, property or environment.
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