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3.  Product Description 

3.1 Description 

The cooling unit WL 5000 S is intended for the cooling of a water circuit. The coolant can be water or 

a mixture of water and antifreeze (water-glycol). Water circulates between the cooling unit and the 

heat source. The water is re-cooled by an air-cooled heat exchanger. A bypass valve limits the pump 

pressure.  
The capacity of the cooling unit depends on the temperature difference between the ambient 

temperature and the water outlet temperature. The cooling capacity has an amount of 5000 W related 

to a difference of 13,2 K between water outlet temperature and ambient temperature. 
Cooling hoses are connected to the cooling unit via hose nipples. 
Coolant inlet and outlet are marked with symbols: Inlet: 

𝑂𝑂

 and outlet: 

𝑂𝑂

 

3.2 Non-Conformity with the Intended Use 

Operation of the unit under improper operational conditions is not permitted, since otherwise the 

operation safety can not be granted 
When using the unit in a way not compliant with the intended use, hazardous situations may occur. 
Operation of the unit is not permitted under the following conditions: 

  The unit is used for a purpose other than the one it is intended for. 

  The unit or parts of it are damaged, the electrical installation is not correct or the insulation is 

broken. 

  Protective or safety equipment is not functional or defect, improperly installed or missing. 

  The unit is not working properly. 

  The unit was modified without authorization or modified in a way that is not permitted. 

  Controlling devices were modified in a way that is not permitted. 

  Operational parameters were changed in a way that is not permitted. 

  Operation in areas exposed to explosion hazards. 

  Operation with cooling media not according to specification. 

  Use of unauthorized tools. 

  Exceedance of the compulsory maintenance intervals. 

PLEASE NOTE 

The manufacturer is not liable for damage occurring when using the unit in a way it was not intended. 

When using the unit in a way it was not intended for, the manufacturer’s warranty given by LAIRD will 

expire. 

  

 

 

Summary of Contents for WL 5000

Page 1: ...WL 5000 Specification and User Manual...

Page 2: ...e without notice Laird assumes no responsibility and disclaims all liability for losses or damages resulting from use of or reliance on this information All Laird products are sold subject to the Lair...

Page 3: ......

Page 4: ...ct Description 13 4 1 Description 13 4 2 Non Conformity with the Intended Use 13 4 3 Technical data 14 4 3 1 Physical dimensions 14 4 3 2 Performance data 14 4 3 3 Environmental specifications 14 4 3...

Page 5: ...5 8 Removal for Service 21 9 Wear Parts and Spare Parts 22...

Page 6: ...sion History Date Index Reason for Change Name Page 13 Apr 20 1 0 First version 22 May 20 2 0 New template Page no Updated A Olsson 10 MAR 2021 2 1 Corrected P N A Kim 06 OCT 2021 2 2 New template A C...

Page 7: ...uthorized 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 equ...

Page 8: ...e 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...

Page 9: ...roperty 2 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 Hum...

Page 10: ...concerning the unit should be reported to the responsible person Stick to accident prevention regulations as well as any regional regulations 2 3 2 Hints Regarding the Electrical Equipment DANGER Dan...

Page 11: ...ntally conscious behavior 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...

Page 12: ...ety equipment must be accessible at all times 2 4 1 Guards Direct access to hazardous parts or areas of the unit is restricted by the unit cover The cover may only be removed for maintenance or repair...

Page 13: ...n not be granted When using the unit in a way not compliant with the intended use hazardous situations may occur Operation of the unit is not permitted under the following conditions The unit is used...

Page 14: ...V 10 50 60 Hz Current consumption 2 6 A Noise level 63 dB A 50 Hz 67 dB A 60 Hz at 1 m distance in any direction Table 2 Performance data 3 3 3 Environmental specifications Operating temperature 10 C...

Page 15: ...d corrosion damage may result and are not covered by manufacturer s liability The unit is only authorized for use in indoor environments The unit must not be stored or operated in aggressive humid env...

Page 16: ...ons on page 9 4 2 Setting to Work 4 2 1 Connecting the unit electrically DANGER Electrical danger Work on electrical installations may be carried out by trained and authorized electricians only Switch...

Page 17: ...hoses Open lid Fill cooling unit with water about 5 0 l CAUTION The water level must be always above fins otherwise reduced cooling capacity Let the cooling unit run for about 10 minutes to deaerate t...

Page 18: ...available direct the air against the inside of the heat exchanger 4 Mount cover 5 2 Pump About every 3 months check the filter of the pump for clean condition in case of polluted water more often CAUT...

Page 19: ...r abrasive cleaning agents corrosion may occur as result of a damaged paint film For cleaning the device casing only use mild cleaning agents e g dish washing detergents Use clean and lint free cloth...

Page 20: ...20 6 Repair PLEASE NOTE Do not carry out any repair work on the unit Send the unit back to the LAIRD service department for contact see page 7...

Page 21: ...ore starting any service work disconnect the cooling unit from the mains Remove electrical connections Remove hoses Remove cap of the drain hole and purge coolant collect with suitable vessel Mount it...

Page 22: ...e of damages caused by the use of spare parts made by manufacturers other than LAIRD PLEASE NOTE Identification data concerning the unit and spare parts The type of unit and the article number can be...

Page 23: ...3 O Ring for cap Not available 4 Thermal switch 2032 00 5 Lid 2075 00 6 Motor with coupling 2001 00 7 Flexible coupling 2038 00 8 Fan 2029 00 9 Capacitor for fan 2088 00 10 Filter 2081 00 11 Flow swit...

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