Size 2 Cabinet Cooler Manual
Contents
1. 4 Cabinet Cooler Vortex Size 2 CONTENTS 1 General Instructions Specification Certification Data Application Suitability Installation Commissioning Maintenance Fault Finding Drawings ee el ML471 V7 Handbook ML471 Page 1 of 5 25 03 13 1 GENERAL INSTRUCTIONS When a Cabinet Cooler is required all potential sources of heat generation should be taken into account Example When an enclosure is in direct sunlight installing a sun shade and possibly thermal insulation would reduce the solar heating considerably If a Cabinet Cooler is required the following must be considered Principle of Operation The Cabinet Cooler Vortex type works by using a compressed air supply and spinning the air into a chamber at very high RPM This splits the air into a hot and cold fraction The hot fraction of air is exhausted outside the enclosure The cold fraction is vented into the enclosure and ultimately has to be vented out of the enclosure 2 SPECIFICATION Power Supply 110 Vac or 230 Vac as per model ordered 50 60Hz AVC 0000 002 230 Vac Version AVC 0000 010 110 Vac Version Air Supply 60 100 psi 4 7 barg 75scfm 21243 at 100psi 7barg Maximum of 40 C 104 F For version with Tamb 20 C to 40 C Maximum of 55 C 131 F For version with Tamb 20 C to 55 C Cooling Capacity 1495 W at 100psi 7barg Note Ambient temperature of up to 55 C will reduce the cooling capacity Temperatur2. 20 8398 8014 info expoworldwide com Expo Technologies Ltd Registered in England No2854600 WWW expoworldwide com Annex to Declaration of Conformity EXPO 12ATEX1212X 1 13 Hazards identified Continuation The hazard presented by potential electrical sparks that could escape into the potentially explosive atmosphere through the Vortex tube is prevented by a tortuous path of minimum two 45 degree bends Additionally the silencer muffler may have double brass mesh which prevents the discharge of metal chips abrasive grits dusts and other contaminates Due to the movement of air through the Cabinet Vortex Cooler static electricity could be produced and ignite the potentially explosive atmosphere A special condition of safe use for this certificate states the user shall ensure the Cabinet Vortex Cooler is sufficiently earthed to the enclosure ensuring that any static charge created is discharged safety to the enclosure 14 Documentation Description Document number Issue Date AVC 0000 001 General arrangement AVC 0000 001 6 14 12 11 AVC 0000 002 General arrangement AVC 0000 002 2 13 1 09 AVC 0000 003 General arrangement AVC 0000 003 2 14 12 11 AVC 0000 006 General arrangement AVC 0000 006 3 12 10 12 AVC 0000 007 General arrangement AVC 0000 007 2 12 05 09 0000 012 General arrangement AVC 0000 012 1 9 10 12 Test Procedures amp User Manuals Number Test Proce
3. Air supply 4 7 barg Supply voltage 110 230 24 Cooling capacity 400W or 1500W 7 barg Ambient temperature range 20 C to 40 C or 20 C to 55 C as marked on the equipment Special conditions of safe use The device adjuster screw located beneath the air silencer muffler has been pinned to limit the maximum exit air temperature Any alteration will invalidate this certificate The maximum supply air temperature shall not exceed 40 C or 55 C depending on the model The Cabinet Vortex Cooler must be installed to conform to the instructions in the user manual Measures shall be taken to limit the enclosure pressure to safe levels Once the Cabinet Vortex Cooler is installed the silencer muffler shall be fixed onto the unit so that it can only be removed by the use of a tool It is responsibility of the user to ensure that the Cabinet Vortex Cooler is appropriately earthed to the enclosure For use in Zone 1 Category 2 applications the user shall ensure that the maximum regulator pressure even under fault condition does not exceed 7 barg 13 Hazards identified The hazard presented by hot gases released into the potentially explosive atmosphere and hot metallic surfaces on the Cabinet Vortex Cooler are prevented by limiting the unit for use in a specific T Class as marked on the label of each unit Page 2 of 3 Summer Road Thames Ditton Surrey KT7 ORH UK T 44 0 20 8398 8011 F 44 0
4. L SGNLS ON IXI JAYA Z Z LNO LND AGNLAO SIIY 4 Www y 0 NVHLSS3148 OL 559 515 jul inoysule Ae m Kay F NOILOALOUd Joyyeu p ay L UOI 10324 oy Kays ysanbesuodn 0 2 2719 0307 A1VOS LON OG O0FAOVId 930 L s39 NYyY3101 319 NVPI s puelenuspyuod se paeenoqgojose Kay 1 91461 80 0 SUYO SUAU ODY L ww 9 0 3 1 3131 23495 4 5 7 8 9 O Declaration of Conformity Expo Technologies Document Number EXPO 12 1212 1 This declaration is issued for the electrical apparatus Cabinet Vortex Coolers Models AVC 0000 Manufacturer Expo Technologies Ltd Surrey KT7 ORH UK This electrical apparatus and any acceptable variation thereto is specified in the Annex to this certificate and the documents therein referred to This declaration and schedule confirms compliance of each unit with the following standards EN 13463 1 2009 Non electrical basic methods and requirements This apparatus fulfils all the requirements for Group Category 2 equipment in accordance with European Directive 94 9 EC The des
5. Page 5 of 5 L 5 TEE EET ary mg _ o J J aar 200 0000 JAV ATGWASSY 431003 XILYDA 30871 rs ee 2997 aoe 2 a Dvd TaN H Y0 217 AIYA YNS X WWZT M 0913 5 2211 381 AIA WISSY wp 5 0 2 X 143AIMS 31VW 040 2 NON ASSY 00S Zdld dAH S6T O8T 334 89d Y31717 0Y1N 09 1210 181 Y37009 670 0008 3843 3 1 OZT 459 2 GNIS OUddv 06 3211 5281 MO 813 A NLS 34 1 3959 2 1 X 58 YAINGAY 090 053 11 OSW 009 0SW1 1943 9NO1S9 X a NLS d13M TS SNOILIS Od Z Jul 4 110 90105 OOTS OA 00 0000 ZAH my 115 9 WAWINIW 900 0000 d9H ooz 459 2 1 X LdNu T 06T 1H9IY FHL NI ATddNS YIY NMOHS 30 1337 JHL WOUd NI Aldd NS YIY 6 9 NOILYLNAIYO LINS OL 207 SANLS ONIXI4 FATWA JH
6. and remove the gland ML471 V7 25 03 13 Page 3 of 5 e Fix gland into the drilled hole e Now insert the vortex tube through the gland and tighten the gland up to hold the Cabinet Cooler in place e Now replace the hot air exhaust muffler and place supplied label adjacent to the muffler on the outside of the enclosure e The temperature sensor can now be positioned within the enclosure This could be on a specific device or in the top of the enclosure where the temperature will normally be at it s greatest e The wiring and pneumatic pipe work can now be fitted 6 COMMISSIONING Always ensure that there is adequate exhaust and pressure relief provided for the enclosure If this is not provided the enclosure will become over pressurized and may operate outside of its Test Pressure specification and possibly become a hazard in itself General Notes Compressed air supply The air supply temperature should not exceed 40 C 104 F or 55 C 131 F depending on the model Solar shading or thermal insulation of air supply pipe work may be required Air supplies are plagued with condensed water vapour and droplets in the air lines This condensation leads to rust and dirt in the air lines Also some compressors will allow oil or oil vapour to enter the air line It is important that the electrical equipment within the Pressurized Enclosure is not contaminated Small orifices within the Cabinet Cooler may become clogged with rust dirt and
7. cold fraction This is typically between 20 80 of the air supply dependant on setting at time of commissioning e The MiniPurge must control the operation of the Cabinet Cooler by way of the purge complete signal The MiniPurge must go through a purge cycle before the Cabinet Cooler receives either a supply of compressed air or electrical power This will prevent the MiniPurge considering the cold fraction as the purge flow which would be incorrect The solenoid valve will obtain its power once the purge time has elapsed e Cabinet Cooler assemblies supplied by Expo have a solenoid valve to control the compressed air supply In addition a thermostatic control is included and a one way air valve fitted to the cold fraction e The one way air valve is to prevent the enclosure losing pressure when the Cabinet Cooler is not in operation e fa customer is to install a Cabinet Cooler themselves into an Expo Pressurized Enclosure that has already been certified by Expo then Expo requires Documents drawings circuits etc recording this addition so that we can issue an amendment to the overall certificate This may incur additional costs e To install the Cabinet Cooler refer to the general assembly drawing for overall dimensions e Drill a hole on the top face of the enclosure the one way valve must be vertical It is possible to mount the Vortex tube in the side wall although this is not the preferred option e Unscrew the hot air exhaust muffler
8. dure Cabinet Cooler Tamb 40 C TP 518 031 WD Test Procedure Cabinet Cooler Tamb 55 C TP 518 090 WD Size 1 Cabinet Vortex Cooler ML374 Size 2 Cabinet Vortex Cooler ML471 Size 1 Ex nA Cabinet Vortex Cooler ML463 15 Certificate History Issue Date Comment 0 10 September 2012 Initial release of certificate 1 21 November 2012 Introduction of the following variations Extra models included Ex nA models T3 Temperature Class permitted Page 3 of 3 Summer Road Thames Ditton Surrey KT7 ORH UK T 44 0 20 8398 8011 F 44 0 20 8398 8014 info expoworldwide com Expo Technologies Ltd Registered in England No2854600 www expoworldwide com wit Declaration of European Directives Conformity Expo Technologies Ltd Hanworth Road Sunbury on Thames TW16 5DB UK This document confirms that Cabinet Coolers manufactured by Expo Technologies Ltd conform as described to the following European Directives and standards 89 336 EEC Electromagnetic Compatibility Directive 73 23 EEC Low Voltage Directive 97 23 EC Pressure Equipment Directive PO Tafa Signed Date 02 01 2013 Managing Director Confidential Assessment file reference SC007 S Files QA CERTS C OF C Cabinet Cooler 5 007 V2 doc Expo Technologies Ltd Tel 44 0 20 8398 8011 Unit 2 The Summit Fax 44 0 20 8398 8014 Hanworth Road E mail sales expoworldwide com Sunbury on Thames TW16 5DB Ex
9. e Control Electronic 2 C 3 6 F Maximum Air Outlet 130 C 266 F Temperature Weight 4 2kg 9 25165 Hazardous Area T Class T4 or T3 at 55 C 131 F or at 40 C 104 F ambient as ordered When housed inside IP54 NEMA 4 enclosure or better 3 CERTIFICATION DATA Cabinet Vortex Coolers are certified under Declaration of Conformity 12ATEX1212X against EN13463 1 2009 Non electrical basic methods and requirements Vortex Coolers are suitable for use in Hazardous Areas where Equipment Group Category 2G is required when installed within a pressurized enclosure and the following instructions are adhered to WARNING The device adjuster screw located beneath the air silencer muffler has been pinned to limit the maximum exit air temperature Any un authorised adjustment of the slotted valve will automatically invalidate the use of this product in a hazardous area After assembly of the Cabinet Cooler on to an Ex p X Y or Z enclosure this Cooler muffler must be replaced onto the exhaust of the Vortex Tube which is located in the Hazardous Area in such manner that can only be removed by the use of a tool It is responsibility of the user to ensure that the Cabinet Vortex Cooler is sufficiently earthed to the enclosure ensuring that any static charge created is discharged safety to the enclosure ML471 V7 25 03 13 Page 2 of 5 4 APPLICATION SUITABILITY e As the Cabinet Cooler displaces air care should be given on i
10. e will open and the Cabinet Cooler will operate e Air will be vented from the Hot air Muffler and out of the enclosure Relief Valve e The Solenoid Valve will close once the set temperature has been reached ML471 V7 25 03 13 Page 4 of 5 7 MAINTENANCE The Cabinet Cooler has no moving parts Clean compressed air moving through the tube will not cause wear on the parts and will provide the same service for an indefinite period of time Occasionally dirt water or oil may enter the tube from the compressed air supply and hinder the performance When this happens simply take the unit apart clean the parts and reassemble tightly replacing the cold end cap to properly seat the generator The Solenoid Valve is also maintenance free and should be replaced if a fault does occur 8 FAULT FINDING e The most common fault is a lack of air supply due to either low air supply pressure or poor flow rate Poor flow is because of too small pipe work long pipe lengths or small fittings e Occasionally dirty or very wet air causes ice build up within the enclosure leading to intermittent operation and water within the enclosure e If the system does not work at all check the fuse has not blown e Ensure the temperature setting has not been tampered with e Ensure the air exhausts are not blocked 9 DRAWINGS AND DOCUMENTS TITLE Drawing Number Cabinet Cooler Assembly AVC 0000 002 ATEX Declaration of Conformity EXPO 12ATEX1212X ML471 V7 25 03 13
11. ign is documented in Expo Technologies Technical Construction File number SC30 and Intertek Reference G100975170 The apparatus marking ll 2G 4 Tamb 20 C to 40 C or lil 2G 4 Tamb 20 C to 55 C For and on behalf of Expo Technologies Ltd Thames Ditton 21 November 2012 Sarah Wickson Certification Engineer Page 1 of 3 Summer Road Thames Ditton Surrey KT7 ORH UK T 44 0 20 8398 8011 F 44 0 20 8398 8014 info expoworldwide com Expo Technologies Ltd Registered in England No2854600 WWW expoworldwide com Annex to Declaration of Conformity EXPO 12ATEX1212X 1 10 11 12 Description The Expo Technologies Cabinet Vortex Cooler provides cooling for enclosures using compressed air Cooling may be required either to remove heat generated by the contents of the enclosure or to compensate for high ambient temperatures There are two types of Cabinet Vortex Coolers Models AVC 0000 001 AVC 0000 002 amp AVC 0000 003 have been designed for use in Zone 1 and Zone 2 Categories 2 and 3 Group IIC applications in Enclosures protected by Pressurization types px py or pz Models AVC 0000 006 AVC 0000 007 amp AVC 0000 012 have been designed for use in Zone 2 Category 3 applications and has been assessed as Ex nA mc IIC refer to EXPO O9ATEX1122X The Cabinet Vortex Cooler is provided with a solenoid valve and a temperature sensor Specification
12. nstallations where movement of dust may be an issue Zone 21 amp 22 or Class Il e The following materials are used in the construction of Cabinet Cooler If substances that will adversely affect any of these materials are present in the surrounding environment please consult Expo Technologies for further guidance Materials of construction e Stainless Steel e Polyamide e Mild carbon Steel e Epoxy Resin e Brass e ABS e Copper e PVC e This equipment is designed for use under normal industrial conditions of ambient temperature humidity and vibration Please consult EXPO before installing this equipment in conditions that may cause stresses beyond normal industrial conditions e The Cabinet Cooler is not silent in operation 5 INSTALLATION General Notes When installing a Cabinet Cooler into a Pressurized Enclosure the following issues should be considered e For use in Zone 1 Category 2 applications the user shall ensure that the maximum regulator pressure even under fault condition does not exceed 7 barg e second Relief Valve unit may be required to exhaust the cold fraction entering the Pressurized Enclosure This second Relief Valve unit will need to be set at a higher lift off pressure than the Relief Valve unit supplied with the MiniPurge Control Unit This is to ensure that the operation of the MiniPurge is not interfered with e The second Relief Valve unit must also be capable of exhausting the full flow rate of the
13. po Technologies Inc Tel 1 888 NFPA 496 9140 Ravenna Road Unit 3 Tel 1 440 247 5314 Twinsburg Fax 1 330 487 0611 OH 44087 E mail sales na expoworldwide com USA www expoworldwide com
14. water droplets A 5 micron filter will separate 99 of foreign material from the air supply allowing virtually maintenance free operation The use of an oil filter with an effective filtration of 0 01 micron will remove the oil droplets for an even cleaner air supply Keep in mind that the current line or hose might contain water dirt or oil and should be blown out before installation Also pipe thread sealant or tape must be carefully applied to avoid clogging product orifices When the temperature of the air inside the Cabinet drops to 0 C 32 F the water vapour in the air will start to freeze If this poses a problem with ice clogging the orifices of the generator inside the tube an air dryer must be used to lower the dew point to keep out the water vapour An air dryer rated at 19 C 2 F will produce a dew point low enough to eliminate the water vapour freezing in the orifices of the generator e The installation of the electrical connections shall be inspected for correct installation before the unit is put into service e The Cabinet Cooler has the temperature setting factory set to 20 C 68 F e f the customer wishes to change this then the adjustment resistor is shown on the drawing provided This does not have an indexed scale e The Cabinet Cooler can now be operated Once a purge cycle has been completed the Cabinet Cooler will become active As soon as the sensor detects the set temperature has been exceeded the Solenoid Valv
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