Operation Manual
Oil-Air Cooling Unit OL 4503
Version 2.0
Laird Technologies GmbH
Borsigstrasse 1
D-24568 Kaltenkirchen
www.lairdtech.com
Protection Notice
Dissemination as well as copying of this document, utilization or posting of its contents is not permitted
unless formally granted. Violations entail claims for compensation. All copyrights, including rights due to
patent grant or registration of a utility model or design, are reserved.
All product names used in this manual are trademarks of the corresponding manufacturers.
Technical modifications subject to change.
Table of Contents
3
Laird Technologies GmbH
Operation Manual (Translation)
Date: 06-Jul-2015
Version: 2.0
Oil-Air Cooling Unit OL 4503
1264.00
Table of Contents
1 About this Manual ............................................................................................................................ 6
1.1 Terms of Guarantee .............................................................................................................................6
1.2 Contact Information ..............................................................................................................................7
2 Product Identification ....................................................................................................................... 8
2.1 Unit Specifications ................................................................................................................................8
2.2 Identification Plate ................................................................................................................................8
3 Safety Regulations ........................................................................................................................... 9
3.1 Hazard classes ......................................................................................................................................9
3.2 Safety Symbols .....................................................................................................................................9
3.3 Hints for Safe Operation .................................................................................................................. 10
3.3.1 Prevent Hazards ..................................................................................................................................................... 10
3.3.2 Hints Regarding the Electrical Equipment .............................................................................................................. 10
3.3.3 Environmental Issues .............................................................................................................................................. 11
3.3.4 Protective Clothing .................................................................................................................................................. 11
3.4 Safety Equipment .............................................................................................................................. 11
3.4.1 Safety and Signalling Equipment included in the Unit ............................................................................................ 11
3.4.2 Guards ..................................................................................................................................................................... 12
3.4.3 Caution Label .......................................................................................................................................................... 13
3.5 In Case of Accidents ......................................................................................................................... 13
4 Product Description ....................................................................................................................... 14
4.1 Intended Use ...................................................................................................................................... 14
4.2 Non-Conformity with the Intended Use........................................................................................ 14
4.3 Unit Components ............................................................................................................................... 15
4.4 Specifications ...................................................................................................................................... 16
4.5 Setting-up Requirements ................................................................................................................. 17
4.5.1 Installation Location................................................................................................................................................. 17
4.5.2 Environmental Conditions ....................................................................................................................................... 17
4.5.3 Infrastructure ........................................................................................................................................................... 17
5 Transport .......................................................................................................................................... 18
5.1 Safety Indications for Transport and Setting-up ........................................................................ 18
5.2 Transportation of the unit ................................................................................................................. 18
5.3 Unpacking ............................................................................................................................................ 18
Table of Contents
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Laird Technologies GmbH
Operation Manual (Translation)
Date: 06-Jul-2015
Version: 2.0
Oil-Air Cooling Unit OL 4503
1264.00
6 Initial Operation ............................................................................................................................... 19
6.1 Safety Indications Related to Initial Operation ........................................................................... 19
6.2 Setting to Work ................................................................................................................................... 19
6.2.1 Placement ............................................................................................................................................................... 19
6.2.2 Cooling Circuit Connection and Filling .................................................................................................................... 20
6.2.3 Electrical Connections ............................................................................................................................................ 22
6.2.4 Carrying out Setting-to-Work .................................................................................................................................. 23
6.3 Daily Start-up ...................................................................................................................................... 23
6.4 Setting-to-Work after Storage ......................................................................................................... 23
7 Controlling the Unit ........................................................................................................................ 24
7.1 Safety Indications for Controlling the Unit ................................................................................... 24
7.2 Switching on the Unit ....................................................................................................................... 24
7.3 Switching off the Unit ....................................................................................................................... 24
7.4 Settings ................................................................................................................................................. 25
7.4.1 Pressure Setting on the Angle-type Safety Valve .................................................................................................. 25
7.4.2 Setting the Thermostat............................................................................................................................................ 26
8 Disruptions ....................................................................................................................................... 27
8.1 Disrupt Operation ............................................................................................................................... 27
8.1.1 Trouble Shooting ..................................................................................................................................................... 27
9 Maintenance and Cleaning ......................................................................................................... 28
9.1 Maintenance Schedule ................................................................................................................... 28
9.2 Cleaning of Heat Exchanger ........................................................................................................... 28
9.3 Refilling of Coolant ............................................................................................................................. 28
9.4 Cleaning of Unit Casing ................................................................................................................... 29
10 Repair ............................................................................................................................................... 29
11 Dismounting, Disposal, Storage ................................................................................................. 30
11.1 Temporary Placing out of Operation ............................................................................................. 30
11.2 Re-packaging the Unit ...................................................................................................................... 30
11.3 Storing the Unit ................................................................................................................................... 30
11.4 Disposal ................................................................................................................................................ 31
11.5 Disposal of Operating Materials ..................................................................................................... 31
11.6 Return of the Unit to LAIRD ............................................................................................................ 31
12 Wear Parts and Spare Parts ....................................................................................................... 32
Table of Contents
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Laird Technologies GmbH
Operation Manual (Translation)
Date: 06-Jul-2015
Version: 2.0
Oil-Air Cooling Unit OL 4503
1264.00
Addendum ............................................................................................................................................. 34
Performance chart ....................................................................................................................................... 34
Flow scheme ................................................................................................................................................. 35
Wiring diagram .............................................................................................................................................. 36
History of Changes
Date
Index
Reason for Change
Name
Page
29-Nov-13
1.0
First version
Edom/Pfeiffer
06-Jul-15
2.0
Spare part numbers changed
Dany/Bitenaite
p. 33
About this Manual
Terms of Guarantee
6
Laird Technologies GmbH
Operation Manual (Translation)
Date: 06-Jul-2015
Version: 2.0
Oil-Air Cooling Unit OL 4503
1264.00
1 About this Manual
This document is the English translation of the original Operation Manual in German language for the Oil-Air
Cooling Unit OL 4503 (called unit in the following). It is based on German safety regulations. In your country
other regulations may apply.
This Operational Manual addresses the needs of the user of the unit. Its intention is to allow the safe
operation of the unit. Thus, it should be read carefully and be kept in a space accessable for the users of the
unit at any time.
All chapters of this Operation Manual can be read independently and thus can be used for look-up purposes.
1.1 Terms of Guarantee
General sale and delivery terms of LAIRD apply. The buyer accepts these terms, at the latest when signing
the contract of purchase.
The particular terms of guarantee and duration of guarantee of the unit in question can be taken from the
contract documents as well as from the order confirmation.
Warranty claims and liability are excluded in case of one of the following situations:
Use of the unit in an unintended way
Inaccurate installation, putting into service, operation, repair or maintenance of the product by people
that are not fully authorized
Use of the product despite of defect, wrongly implemented or non-functional safety devices or
protective gear
Unauthorized or forbidden modifications by the user concerning the electrical equipment of the unit
Unauthorized or forbidden modifications by the user concerning the mechanical structure of the unit
Unauthorized or forbidden modifications by the user concerning the operating parameters
Use of unauthorized tools
Use of unauthorized operating supplies
Exceedance of mandatory maintenance intervals
Cases of disaster caused by foreign matter influence or act of nature beyond control
PLEASE NOTE
Any form of unintended use of the unit and any structural change caused by the user without prior
authorization in written form by LAIRD will lead to the termination of warranty as well the termination of the
declaration of conformation and will free LAIRD from product liability. This concern includes safety devices
as well.
In case of authorized changes or when adding optional equipment it is the sole responsibility of the customer
to assure the accurate implementation of the safety devices required.
About this Manual
Contact Information
7
Laird Technologies GmbH
Operation Manual (Translation)
Date: 06-Jul-2015
Version: 2.0
Oil-Air Cooling Unit OL 4503
1264.00
1.2 Contact Information
If you have questions with respect to this unit please use the contact information given below. Always
communicate the following:
Your name and address
Name of contact at your address
Product data as on identification plate: Type of unit, serial number and year of manufacture
Company contact:
Mail:
Laird Technologies GmbH
Borsigstrasse 1
D-24568 Kaltenkirchen
Deutschland
Internet:
http://www.lairdtech.com
E-Mail:
info-lcs@lairdtech.com
Phone:
+49 4191 9993-0
Fax:
+49 4191 9993-33
Product Identification
Unit Specifications
8
Laird Technologies GmbH
Operation Manual (Translation)
Date: 06-Jul-2015
Version: 2.0
Oil-Air Cooling Unit OL 4503
1264.00
2 Product Identification
2.1 Unit Specifications
Manufacturer
Laird Technologies GmbH
Type of product
Oil-air cooler
Type of unit
OL 4503
Article number
1264.00
Table 1: Unit specifications
2.2 Identification Plate
The identification plate is attached on the top of the coolant container below the unit cover.
Fig. 1: Position of identification plate
1
Identification plate
Fig. 2: Unit specific identification plate
1
Unit type
2
Article number
3
Serial number
4
Electrical specification
5
Date of manufacture
1
1
2
4
3
5
Safety Regulations
Hazard classes
9
Laird Technologies GmbH
Operation Manual (Translation)
Date: 06-Jul-2015
Version: 2.0
Oil-Air Cooling Unit OL 4503
1264.00
3 Safety Regulations
3.1 Hazard classes
In this document safety instructions are using standardized representation and symbols. Depending on the
probability of their incidence and the severeness of consequences three hazard classes are used.
DANGER
Reference to direct danger for humans.
Inobservance will lead to irreversible injuries or exitus.
CAUTION
Reference to noticeable danger for humans or possible damage to property.
Inobservance may lead to reversible injuries or to damage to property.
3.2 Safety Symbols
In this Operation Manual concrete safety instructions are given in order to point out unpreventable residual
risks when operating the unit. These risks include danger for
Human beings
The unit and other equipment
The environment
The safety symbols used in this manual are indicated below. The main reason for their use is to point the
reader to the safety instruction given in the text field beside.
Symbol
Meaning
Warning with respect to general danger or damage to property
Warning with respect to electrical hazard
Table 2: Warning signs
Symbol
Meaning
This symbol indicates the requirement of wearing safety gloves
This symbol indicates the requirement of disconnecting from mains.
Table 3: Signs giving orders
Safety Regulations
Hints for Safe Operation
10
Laird Technologies GmbH
Operation Manual (Translation)
Date: 06-Jul-2015
Version: 2.0
Oil-Air Cooling Unit OL 4503
1264.00
3.3 Hints for Safe Operation
PLEASE NOTE
Conduct inspections on a regular time base
This will ensure that the appropriate measures will be carried out indeed.
The unit is operation save. It was built according to the state-of-the-art.
Despite this the unit could cause hazards if it
is used in a way it was not intended for
is used improperly
is operated under unsuitable conditions
3.3.1 Prevent Hazards
Hazards can be prevented by safety-conscious and anticipatory behaviour of staff.
Everybody working with the unit should keep the following in mind:
Make this Operation Manual available for everybody at the operation site of the unit in a complete and
perfectly readable state!
Use the unit exclusively for what it was intended!
The unit must be operational and errorfree. Check the condition of the unit before working with it and
within a regular time frame.
Make sure that nobody can injure himself by any part of the unit!
Any disruption or recognizable change concerning the unit should be reported to the responsible
person.
Stick to accident prevention regulations as well as any regional regulations!
3.3.2 Hints Regarding the Electrical Equipment
DANGER
Danger to life through electrical shock when working on the electrical equipment of the unit!
Switch off the unit before starting your work!
Disconnect the unit from mains by pulling the mains plug!
Verify that the installation is dead (volt-free)!
Carry out earthing or short circuiting!
When working on electrical installations the following principles should be observed:
Works on the electrical installations may only be accomplished by qualified electrical staff!
When connecting electrical equipment to mains regional regulations have to be observed. Be aware of
the wiring diagram information.
The unit is powered by electricity. Electrical shock hazard exists, if the electrical installations are
defective or the insulation fails during operation.
When switched-off the unit is not disconnected from mains. This is only the case when the mains plug
is pulled.
Any changes regarding the control elements of the unit can have an influence on the save operation.
All intended changes must be authorized by the manufacturer.
After the implementation of a change the operativeness of the safeguards must be verified.
Safety Regulations
Safety Equipment
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Laird Technologies GmbH
Operation Manual (Translation)
Date: 06-Jul-2015
Version: 2.0
Oil-Air Cooling Unit OL 4503
1264.00
No unauthorized changes on the unit are allowed. All intended changes must be authorized by the
manufacturer.
3.3.3 Environmental Issues
Environmentally concious and anticipatory behaviour of staff avoids environmentally hazardous impacts.
The following principles apply for environmentally conscious behaviour:
Environmentally hazardous substances must not get into the soil or into the drains. They should be
kept in appropriate containers.
Environmentally hazardous substances must be brought to utilization or disposal according to regional
regulations.
When dealing with working fluids always keep aware of the safety data sheet of the corresponding
manufacturer.
3.3.4 Protective Clothing
When doing a job that leads to contact of the skin with the coolant (e.g. filling-up of the coolant container):
Wear safety gloves made of PVC, neoprene or nitrile rubber
3.4 Safety Equipment
PLEASE NOTE
The safety equipment listed below must be integrated in the local control environment by the customer,
unless otherwise noted. These tasks must be carried out solely by trained experts. All information required
can be taken from the wiring diagram shown in the addendum.
Safety equipment must not be modified, removed or taken out of operation. All parts of the safety equipment
must be accessible at all times.
3.4.1 Safety and Signalling Equipment included in the Unit
The unit is equipped with safety equipment at critical spots:
The filling level of the coolant container is indicated in an inspection glass.
The circulated oil amount is controlled by a flow control device (flow switch) that must be integrated in
the potential-free safety circuit of the device that is to be cooled.
The oil temperature is controlled by a thermostat. When the oil temperature exceeds the maximum
setpoint this is indicated by the potential-free safety circuit.
The maximum pump pressure is limited by an angle-type safety valve that bypasses the oil stream
when the pressure pre-set is exceeded.
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