Model 11 Type Y or Z Purge/Pressurization System
Contents
1. proof device 3 a Za l i Seal gt gt Intrinsically safe or fiber optic device 07 Seal u Gana Intrinsically safe or fiber optic device Independently pressurized device Adjacent pressurized be u Pressurized le raceway Protected enclosure or device Copyright Pepperl Fuchs Singapore 65 6779 9091 fa PEPPERL FUCHS 15 pa info sg pepperl fuchs com PROTECTING YOUR PROCESS L Conduit Installation Electrical Conduit 1 Choose the location for the enclosure s electrical conduit connection s based on the requirements on page 15 Electrical Supply Requirements 2 Drill and deburr enclosure conduit fitting holes in the protected enclosure Mount the fittings 3 Determine appropriate route for the enclosure electrical and power alarm signal conduit 4 Measure cut and thread conduit check conduit fit to insure proper seating Fully ream all conduit 5 Install conduit and tighten all fittings to fitting manufacturers specifications Secure conduit to appropriate structural supports as required 6 Seal all conduit with an approved compound prior to operation of the protection system HELPFUL HINT It may be impractical to pour all electrical conduit seals prior to installation in the field However all conduit connections must be sealed for proper testing and operation of the enclosure protection system Therefore the use of temporary seals such as duct seal or masking2. Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com Germany 49 621 776 2222 pa info de pepperl fuchs com In order to comply with the NFPA 496 standard requiring protection against over pressurization of the protected enclosure the installer must install one of the following items in addition to the enclosure protection system a Install an enclosure protection vent on the protected enclosure b Install a tamper proof regulator upstream of the enclosure protection system s system supply inlet to pre regulate protective gas supply to 5 psi max In addition for small tightly sealed enclosures or to compensate for a fluctuating protective gas supply it may be necessary to pre regulate the protective gas supply to a constant 5 psi regardless of whether an enclosure protection vent is installed This will reduce the amount of drifting that can normally occur when maintaining a safe pressure inside a protected enclosure The pre regulation can be accomplished by installing the TR 10G tamper proof regulator accessories or equivalent Material Specifications Regulator body Regulator handle Enclosure pressure gauge Tube fittings Tubing System nameplates Fastener hardware Mounting plate Zinc w enamel finish Polycarbonate Aluminum w enamel finish 316 SS forged body 316 SS 1 4 035 welded Silkscreened Lexan amp SS Alum
3. YZ LH Series Model Number System Style LPS less pressure switch WPS with pressure switch Area Classification CI Class Area CII Class Il Area System Type YZ Div 1 to Div 2 Div 2 to Nonhazardous Mounting Configuration LH left hand left side of enclosure RH right hand right side of enclosure TM top mount top of enclosure BM bottom mount bottom of enclosure WM wall mount wall surface FM frame mount external frame or rack PM panel mount enclosure surface cutout Not available in WPS Style Additional factory installed accessories General Information System Specifications System dimensions Shipping weight Ibs Operating temp range 40 F to 120 F Supply pressure range 5 120 psi max When using the optional inline filter max supply pressure is 80 psi Supply requirements Clean air or inert gas Safe pressure CI CII 0 25 1 0 Safe pressure flowrate 0 1 3 5 SCFH System supply fitting 1 4 tube fitting Enclosure supply fitting 1 4 tube fitting Enclosure reference fitting 1 4 tube fitting Switch setting CI CII decr 0 15 0 5 0 02 WPS amp WPSA pressure switch wiring 1 2 FPT Switch contact ratings WPS style 120 VAC 15A With enclosure protection vent 120 psi maximum Without enclosure protection vent 5 psi maximum See pages 9 amp 10 LPS 5 WPS 10 Enclosure integrity determines actual flow rate
4. tape for bench or shop testing prior to final field installation may be used Switch body Setpoint calibration screw Grounding screw 1 2 conduit port WPS Style EXP Pressure Switch with Cover Removed Switch body Setpoint calibration screw Grounding screw 1 2 conduit port WPSA Style EXP Pressure Switch with Cover Removed Subject to modifications without notice 16 Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com Electrical switch contacts p High port tube fitting High port tube fitting Germany 49 621 776 2222 pa info de pepperl fuchs com WPS amp WPSA Style Conduit WPS and WPSA style systems provide electrical contacts for audible or visual alarm devices that signal a loss of protected enclosure pressure WPS and WPSA style systems are calibrated to alarm at 0 15 for Class applications and 0 50 for Class Il applications The switches are suitable for hazardous classified outdoor locations Wiring must be installed with a seal and conduit fittings suitable for the area Alarm circuit power may be derived from the protected enclosure power source or an intrinsically safe alarm signal source All associated alarm devices must be protected by suitable means explosion proof purged or intrinsically safe WPS amp WPSA Style Conduit Connection Parts Fitting Kits Can Be Factory Furnished 1 For WPS and WPSA Styl
5. 4 O D 035 wall thickness welded or seamless stainless steel tubing NOTE Above fittings and tubing are not required if System is furnished with an enclosure connection kit Model ECK accessory See photo on page 8 5 For multiple enclosure connections two 2 EPC 10 1 2 pipe mounting hubs or equivalent and 1 2 150 rated pipe couplings amp unions per interconnection One 1 lot 150 rating 1 2 galvanized or aluminum pipe and fittings fully reamed and unrestricted PM Pneumatic Connection Requirements In addition to item numbers 1 4 and 5 above the following fittings are required for all PM configurations 1 For system supply on PM configurations one 1 additional EBC 4 or equivalent 1 4 through bulkhead fitting per system is required 2 For atmospheric reference one 1 PRB 4 or equivalent 1 4 female bulkhead fitting and stainless steel sintered element is required SYSTEM ATMOSPHERIC REFERENCE FITTING Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com fF PEPPERL FUCHS PROTECTING YOUR PROCESS Part No 512091 Drawing No 129 0207a 03 09 Tubing Installation Tubing PM Configurations Enclosure bulkhead fittings HELPFUL HINTS All work must be performed by technicians qualified in pneumatic tubing and electrical conduit installation 1 Select the fittings required to install the system supply system supply bulkhead Fitting and atmospheric reference bu
6. ETW enclosure temperature warning nameplate must be located in a prominent position on or near all enclosure accesses doors and covers when the temperature of an internal component exceeds 80 percent of the ignition temperature of the flammable vapor gas or dust involved The ETW warns the operator to deenergize all equipment for a specified length of time allowing the protected equipment to cool before opening the protected enclosure The length of time required is determined by the customer and can be factory or field engraved All EWNs and ETWs are furnished with an adhesive back but should also be riveted or screwed to the protected enclosure WARNING PRESSURIZED ENCLOSURE THIS ENCLOSURE SHALL NOT BE OPENED UNLESS THE AREA IS KNOWN TO BE FREE OF FLAMMABLE MATERIALS OR UNLESS ALL DEVICES HAVE BEEN DE ENERGIZED POWER SHALL NOT BE RESTORED AFTER ENCLOSURE HAS BEEN OPENED UNTIL ENCLOSURE HA BEEN PURGED IN ACCORDANCE WITH THE PURGE SYSTEM START UP INSTRUCTION AREA CLASSIFICATION PRESSURIZATION TYP Enclosure warning nameplate Class WARNING PRESSURIZED ENCLOSURE THIS ENCLOSURE SHALL NOT BE OPENED UNLESS THE AREA IS KNOWN TO BE FREE Of FLAMMABLE MATERIALS OR UNLESS ALL DEVICES HAVE BEEN DE ENERGIZED POWER SHALL NOT BE RESTORED AFTER ENCLOSURE HAS BEEN OPENED UNTIL COMBUSTIBLE DUSTS HAVE BEEN REMOVED AND THE ENCLOSURE REPRESSURIZED IN ACi WITH THE PRESSURIZATION SYSTEM START UP INSTRUCTIONS TEMPERATURE CODE RD A
7. audible alarms or visual indicators must be used to notify operators that pressure inside the enclosure is below the NFPA minimum Alarms are connected directly to the enclosure and monitor the differential air pressure between the enclosure and the environment outside it These alarms are activated by the reduction in flow or pressure within the protective enclosure and have a direct connection to the enclosure eliminating the need for an alarm on the protective gas supply e The alarm must be located where the operator can see it easily e The alarm must take its measurement from the enclosure only e Alarms located in the hazardous area must be rated for the area e Valves cannot be connected between the alarm and the enclosure IMPORTANT NOTE NFPA 496 requires the use of an alarm or an indicator to detect the loss of safe enclosure pressure In addition the NFPA 496 requires that if an indicator alone is utilized a protective gas supply alarm must also be installed between the last valve in the protective gas supply and the protected enclosure Therefore the protective gas supply to all LPS Style systems must be equipped with the above mentioned protective gas supply alarm Exception Systems utilizing an EPSK or GPSK enclosure pressure loss alarm switch accessories will satisfy the above mentioned NFPA requirement Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com p
8. ion Worldwide German Headquarters Pepperl Fuchs GmbH 2 Mannheim Germany Tel 49 621 776 2222 E Mail pa info de pepperl fuchs com Asia Pacific Headquarters Pepperl Fuchs PTE Ltd Singapore Company Registration No 199003130E Tel 65 6779 9091 E Mail pa info sg pepperl fuchs com m gt Central Western Europe amp vy Africa Headquarters El Northern Europe Headquarters Pepperl Fuchs N V Pepperl Fuchs GB Ltd Schoten Antwerp Belgium Oldham England Tel 32 3 6442500 Tel 44 161 6336431 E Mail pa info be pepperl fuchs com E Mail pa info gb pepperl fuchs com Middle East Headquarters Southern Eastern Europe Headquarters Pepperl Fuchs M E FZE Pepperl Fuchs Elcon srl Dubai UAE Sulbiate Italy Tel 971 4 883 8378 Tel 39 039 62921 E Mail pa info ae pepperl fuchs com E Mail pa info it pepperl fuchs com North Central America Headquarters El South America Headquarters Pepperl Fuchs Inc Pepperl Fuchs Ltda Twinsburg Ohio USA Sao Bernado do Campo SP Brazil Tel 1 330 486 0002 Tel 55 11 4339 9935 E Mail pa info us pepperl fuchs com E Mail pa info br pepperl fuchs com FJPEPPERL FUCHS www pepperl fuchs com PROTECTING YOUR PROCESS Subject to modifications e 2009 PEPPERL FUCHS INC e Printed in USA Part No 512091 Drawing No 129 0207a TDOCT 1359_ENG 03 09
9. of shipment of such Products from P F s warehouse or place of manufacture or from P F s authorized representative or distributor Only the original purchaser of such Products the Customer shall be entitled to the benefit of the foregoing Limited Warranty No representative agent or salesman of P F is authorized to give or provide any warranty or make any representation contrary to or in addition to the foregoing Limited Warranty 2 Inspection and Claims Customer must inspect and test all Products upon receipt All claims under the Limited Warranty provided herein must be made within thirty 30 days of the discovery of the defect Customer must obtain shipping instructions from P F prior to returning any Product which Product must be returned at Customer s expense in accordance with P F s instructions 3 Limitations and Exclusions Normal Use shall mean use and operation within rated capacities at the correct voltage and with any required maintenance as provided in the applicable P F Operating Manuals The Limited Warranty provided herein does not apply to i any Products which have been altered or modified in any way or disassembled by the Customer or anyone else ii any Products which have been subject to misuse negligence or accident or improperly installed changed substituted or replaced iii any part or component not manufactured by P F or iv any part or component that is subject to wear or consumption For parts o
10. to show a direct factor is acceptable as noted above if the method used to mark the nameplate does not deface the instructions listed Materials used for the marking must be indelible and withstand prevailing environmental conditions Class Il Pressurization Set up 1 Close the enclosure pressure control regulator fully by turning it counterclockwise CCW 2 Remove all traces of combustible dust from the protected enclosure 3 Check operation of enclosure protection vent if utilized 4 Seal enclosure s and adjust enclosure pressure control regulator by opening slowly clockwise CW to set a safe pressure on the enclosure pressure indicator NOTE If pressure setting is difficult to stabilize or set see page 19 Troubleshooting Procedures 5 Install and tighten all bolts on the pressure loss alarm switch if utilized Ensure the conduit is sealed with approved compounds Energize power to switch and alarm system if utilized and test the function of the alarm system Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com J PEPPERL FUCHS PROTECTING YOUR PROCESS 17 L Operating Sequence WARNING Do not exceed a safe pressure with the enclosure pressure control regulator Operators must follow step by step sequence of the start up instructions nameplate on the protection system Class Purging Operation Start Up Conditions Protection method Powering met
11. ty PROCESS AUTOMATION ad NAND OPERATION MANUAL MODEL 11 TYPE Y or Z PURGE PRESSURIZATION SYSTEM Meek SCI Type F PEPPERL FUCHS L Table of Contents Purpose and Description Page 2 Page 3 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 System Purpose and Description Purpose System description Important notes Identifying Your System Defines specific features of the system General Information System amp material specifications System accessories Spare parts Tools amp test equipment Enclosure and Device Design Design requirements Adjacent enclosures Device ventilation Temperature limitations Installation Overview Installation diagram Getting Started Establishing connection sizes Determining enclosure inlet amp outlet connection locations System Mounting LH RH TM BM amp WM configurations FM amp PM configurations Special Mounting Information ECK ILFK connection diagram Typical panel mount diagram Mounting Plate Dimensions Mounting plate dimension diagrams Hardware Mounting Optional enclosure protection vent Warning nameplates Pneumatic Tubing Requirements Protective gas supply requirements Pneumatic connection requirements Tubing Installation LH RH TM BM WM FM amp PM tubing configurations Tubing Conne
12. vents can be tested by removing the conduit plug at the bottom of the mounting tee Multiple operations require only one test per day if enclosure is not opened or left unattended Class Purging Set up 1 Close the enclosure pressure control regulator fully by turning counterclockwise CCW 2 Temporarily connect the inert gas supply to a 0 to 250 SCFH flowmeter Connect the outlet of the flowmeter to the enclosure pressure control regulator 3 Check operation of enclosure pressure vent if utilized 4 Seal enclosure s and adjust enclosure pressure control regulator by opening slowly clockwise CW to set a safe pressure on the enclosure pressure indicator NOTE If pressure setting is difficult to stabilize or set see page 19 Troubleshooting Procedures 5 When safe enclosure pressure is stabilized measure flow of inert gas supply through protection system to calculate required exchange time based on the Class exchange time chart 6 Install and tighten all bolts on the pressure loss alarm switch if utilized Ensure the conduit is sealed with approved compounds Energize power to switch and alarm system if utilized and test the function of the alarm system 7 Cease testing and remove test equipment flowmeter 8 Connect the inert gas supply directly to the enclosure pressure control regulator IMPORTANT NOTE Operators must secure wrist or stop watch to manually time exchange cycle for Cla
13. 1 2 1 D pipe 1 2 1 D pipe Tubing or pipe diameter fully reamed fully reamed fully reamed fully reamed fully reamed Maximum tubing pipe length and 20 feet 5 feet 20 feet 10 feet 30 feet maximum number of bends elbows 10 bends 5 bends 10 bends 5 elbows Selbows TYPICAL MULTIPLE PROTECTED ENCLOSURE CONNECTIONS PROTECTIVE GAS SUPPLY ee 2 Se eee ee 7 ee SUPPLY i Ried died le ai PROTECTED L a ENCLOSURE ENCLOSURE bie Py PROTECTED PROTECTION SEE gt oto ENCERRAR a ENCLOSURE SYSTEM eee an eee REFERENCE L _______ j q peices Ses es comet ea tests mms ees tee eee es es ee ee ee i ee et es ee a pees ee eee Hann J 5 NOTE Tube and pipe sizes are trade sizes and are not equal in inside diameters DO NOT substitute tube for pipe with same trade size HELPFUL HINTS To ensure adequate protective gas flow to the protected enclosure s all piping and tubing must be fully reamed Precautions must be taken to prevent crimping and other damage to protective gas piping and tubing When protecting multiple enclosures with a single enclosure protection system the enclosures must be connected in series from the smallest to the largest to ensure adequate protective gas flow Determining Enclosure Inlet amp Outlet Connection Locations OUTLET HELPFUL HINTS If flammable gases are lighter than air the inlet connection OUTLET to each enclosure must enter near a bottom corner The outlet connection for an opti
14. Exception If the protected enclosure s is equipped with a Pepperl Fuchs enclosure protection vent the protective gas supply to the protection system must not exceed 120 psi maximum 5 psi minimum See page 3 System Specifications for additional information concerning protective gas supply requirements MULTIPLE ENCLOSURE CONNECTION FITTING Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com 12 Germany 49 621 776 2222 pa info de pepperl fuchs com Pneumatic Connection Requirements ALL FITTINGS MAY BE CUSTOMER OR FACTORY FURNISHED 1 For system supply one 1 SC 4 1 4 male straight connector or one 1 NC 4 1 4 male elbow connector or equivalent fitting per system NOTE Above fitting is required only if protection system is furnished with an optional in line filter kit model ILFK accessory See photo on page 8 One 1 similar fitting which will connect the inert gas supply tubing to the inert gas supply header connection point and one 1 lot of 1 4 O D 035 wall thickness welded or seamless stainless steel tubing 2 For enclosure supply one 1 EFC 4 1 4 flush connector or one 1 EBC 4 1 4 feed through connector or equivalent fitting per system 3 For enclosure reference one 1 EFC 4 1 4 flush connector or one 1 EBC 4 1 4 feed through connector or equivalent fitting per system 4 One 1 lot of 1
15. NC AREA CLASSIFICATION PRESSURIZATION TYPE Enclosure warning nameplate Class Il NFPA Code 496 ISA Code 12 4 WARNING NOTICE THIS ENCLOSURE CONTAINS HOT COMPONENTS ENCLOSURE SHALL NOT BE OPENED UNLESS THE AREA I5 KNOWN TO BE NONHAZARDOUS OA UNLESS ENCLOSURE POWER HAS BEEN DEENERGIZED FOR THE TIME SPECIFIED BELOW Enclosure temperature warning nameplate Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com F PEPPERL FUCHS 4 PROTECTING YOUR PROCESS Pneumatic Tubing Requirements Protective Gas Supply Requirements The protective gas supply to the protection system must be a clean instrument quality compressed air or nitrogen and must contain no more than trace amounts of flammable gas vapor or dust The protective gas supply compressor intake must originate in a nonhazardous location Suction duct passing through a hazardous location and the protection system tubing and piping must be fabricated from noncombustible materials suitable for prevailing hazards and environmental conditions The protective gas supply must originate from a dedicated instrument quality compressed air header 1 2 pipe or larger no farther than twenty 20 feet from the protection system Local compressors and gas cylinders should not be used before consulting with Pepperl Fuchs The protective gas supply to the protection system must be equipped with a tamper proof regulator set at 5 psi maximum
16. PICAL WM MOUNTING FLANGE 329 28 Hoe Panel Cutout ms Bs 25 O D TYP 6 a Panel Cutout 11 75 11 WPS amp WPSA FM Frame mount configuration Subject to modifications without notice 10 Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com Germany 49 621 776 2222 pa info de pepperl fuchs com 75 O D TYP 2 25 O D TYP 4 11 LPS BM Bottom mount configuration 11 WPS amp WPSA WM Wall mount configuration 3 25 1 25 Panel Cutout Bi Panel Cutout 7 25 11 LPS FM amp 11 LPS PM Frame amp panel mount configuration Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com fF PEPPERL FUCHS PROTECTING YOUR PROCESS Part No 512091 Drawing No 129 0207a 03 09 Part No 512091 Drawing No 129 0207a 03 09 L Hardware Mounting Optional Enclosure Protection Vent All configurations must be mounted in a true vertical position The vent must be located to provide access for routine testing of the vent s flapper assembly A minimum 8 clearance is required below the vent opening 1 Determine the vent s mounting configuration i e 00 vertical mount or 90 side mount See photos below 2 Determine vent location and layout vent mounting hole on the protected enclosure as determined on page 7 Getting Started 3 Using a 0 875 hole saw or 1 2 conduit punch drill and d
17. R OPERATION OF A PRODUCT SHALL NOT EXCEED THE PRICE ALLOCABLE TO THAT PRODUCT OR THE PART THEREOF WHICH GIVES RISE TO THE CLAIM THE REMEDY SET FORTH IN THIS LIMITED WARRANTY CONSTITUTES THE SOLE AND EXCLUSIVE REMEDY OF THE CUSTOMER P F SHALL NOT BE LIABLE FOR PENALTIES OF ANY DESCRIPTION 4 Limitation of Remedies In the event of P F s liability whether on this Limited Warranty or based on contract tort including but not limited to negligence and strict liability or otherwise Customer s sole and exclusive remedy will be limited to at P F s option the repair or replacement f o b P F s place of manufacture by P F of any non conforming items for which claim is made by Customer in accordance with paragraph 2 or the repayment of the portion of the purchase price paid by Customer attributable to the non conforming item 5 Responsibility of Customer Safety and Protection Precautions P F takes great care to design and build reliable and dependable Products however some Products can fail eventually Customer must take precautions to design its equipment to prevent property damage and personal injury in the unlikely event of a failure AS A MATTER OF POLICY P F DOES NOT RECOMMEND THE INSTALLATION OF PRODUCTS AS THE SOLE DEVICE FOR THE PROTECTION OF PERSONNEL OR PROPERTY AND THEREFORE THE CUSTOMER SHOULD BUILD IN REDUNDANCY OR DUAL CONTROL USING APPROVED SAFETY DEVICES FOR THESE APPLICATIONS 6 Conflicts In the event there is any c
18. a info us pepperl fuchs com Germany 49 621 776 2222 pa info de pepperl fuchs com Typical Enclosure Wiring Methods In a general sense protected enclosures should be wired similar to explosion proof enclosures in accordance with Article 500 of the National Electric Code NFPA 70 Single conductor wiring should be placed in rigid metal conduit seal flex conduit or other mediums approved for use in the hazardous location surrounding the protected enclosure Additionally NFPA 496 requires the use of approved seals on all pressurized enclosure conduit wiring entries in accordance with NFPA 70 Furthermore the use of an approved seal is simply the most practical way to prevent excessive leakage through conduit connections However while explosion proof enclosures require conduit seals on all cable entries in accordance with NFPA 70 Other methods of sealed cable entries that are suitable for hazardous locations can be used such as compression glands In conclusion there are two primary goals First the installer should ensure that all associated wiring and cable is protected by pressurization or other means such as explosion proof conduit or intrinsic safety barriers Secondly the installer should ensure that all associated conduit and wireways are sealed to conserve protective gas unless they are used to supply protective gas to other enclosures or devices Typical Enclosure Wiring Connections Explosion Conduit
19. ction Diagrams LH RH TM BM WM FM amp PM configuration connection points Pneumatic diagram Electrical Supply Requirements Wiring requirements Enclosure power amp alarm signal Enclosure wiring methods amp connections Conduit Installation Electrical amp WPS style conduit and connection parts Set Up Procedure Class amp Class II set up Operating Sequence Class amp Class II operation Troubleshooting Procedures Troubleshooting chart Warranty and Liability Statement Warranty notes General terms Limitations Customer Notes System Maintenance Regular maintenance Long term maintenance Maintenance schedule Systems Identification amp Application Information Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com Germany 49 621 776 2222 pa info de pepperl fuchs com Purpose Pepperl Fuchs Bebco EPS System allows the use of general purpose or nonrated electrical or electronic devices with exception to devices that produce excessive heat utilize combustible gas or expose arcing contacts to the hazardous atmosphere in NEMA National Electrical Manufacturers Association 4 or 12 enclosures in the place of explosion proof NEMA 7 enclosures Other purposes include heat moisture and dust contamination prevention Description Model 11 is an enclosure pressurization or purging system that operates on a supply of com
20. ctions that could prohibit bolt fastening or system pneumatic connections 3 Cut panel cutout pattern on the intended surface 4 Deburr all cutout surfaces 5 Secure system to enclosure using SMK 4 or equivalent 1 4 x 3 4 stainless steel nuts bolts mounting clips and lock washers Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com J PEPPERL FUCHS 7 PROTECTING YOUR PROCESS Bl Model 11 Installation and Operation Manual Special Mounting Information Typical Example of Factory Installed ECK amp ILFK Accessories ECK FACTORY INSTALLED ENCLOSURE CONNECTION KIT ACCESSORY Provides factory installed tubing and fittings for enclosure supply and reference connections Model 1001A LPS LH shown ILFK IN LINE FILTER KIT ACCESSORY Provides an 8 5 oz capacity 40 micron protective gas supply filter LESE HM S Typical Examples of Surface Pipe Panel amp Frame Mounted Systems Typical Surface Mounted System Model 1002 LPS CI Z LH shown Subject to modifications without notice 8 Pepperl Fuchs Group USA 1 330 486 0002 Typical Pipe Mounted System Model 1002 LPS CI Z LH shown Germany 49 621 776 2222 Typical Panel Frame Mounted System Model 1002 LPS CI Z PM shown Copyright Pepperl Fuchs Singapore 65 6779 9091 fa PEPPERL FUCHS www pepperl fuchs com pa info us pepperl fuchs com pa info de pepperl fuchs com pa info sg pepperl fuc
21. ctive gas supply Enclosure pressure loss Pressure switch is out of calibration Calibrate by slowly adjusting counterclockwise to alarm switch does not appear decrease the setpoint and clockwise to raise the to be operating setpoint Do not attempt to calibrate the switch until all efforts to make the switch respond properly have failed Problems persists or if the Problems persist Contact Pepperl Fuchs Applications Customer system does not appear to Service Department at 330 486 0002 for more be operating properly information This section covers the most common problems documented with this system Any problems not covered in this section should be addressed directly to our factory Please address all service needs to Pepperl Fuchs Inc Customer Service Department Subject to modifications without notice Copyright Pepperl Fuchs Pepperl Fuchs Group USA 1 330 486 0002 Germany 49 621 776 2222 Singapore 65 6779 9091 fa PEPPERL FUCHS 1 9 www pepperl fuchs com pa info us pepperl fuchs com pa info de pepperl fuchs com pa info sg pepperl fuchs com PROTECTING YOUR PROCESS Warranty Terms and Conditions PEPPERL FUCHS STANDARD 24 MONTH WARRANTY 1 Limited Warranty Pepperl Fuchs Inc P F warrants Purge Units and components for Purge Units manufactured by P F Product or Products to be free from defects in material and workmanship under Normal Use for a period of twenty four 24 months from the date
22. e EXP pressure loss alarm switch connected to an enclosure mounted alarm one 1 LCK L fitting conduit kit or equivalent conduit elbow coupling and seal fittings 2 For WPS and WPSA Style EXP pressure loss alarm switch connected to a remote mounted alarm one 1 TCK T fitting conduit kit or equivalent conduit tee coupling and seal fittings 3 One 1 lot 150 rating 1 2 galvanized or aluminum pipe Fi Low port sintered vent Low port sintered p vent 120 VAC uF power amp electrical switch contacts a oo i B gp boo LCK L Fitting Conduit Kit Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com fF PEPPERL FUCHS PROTECTING YOUR PROCESS Part No 512091 Drawing No 129 0207a 03 09 Part No 512091 Drawing No 129 0207a 03 09 L Set up Procedure HELPFUL HINTS The term safe pressure for purposes of this manual is defined as follows Class a minimum 25 inch of water column pressure Class Il a minimum 1 0 inch of water column pressure Regulator may be in the locked position upon arrival To adjust regulator pull handle to outward position To test the vent s operation gently prod the vent flapper open with a soft pointed object example eraser end of a pencil ensuring that the vent valve works freely On vertically configured vents this can be accomplished from within the protected enclosure Side mounted 90 configured
23. eburr the enclosure protection vent mounting hole 4 Remove the hub mounting nut from the vent hub and place the hub with O ring intact through the mounting hole The O ring must be on the outside of the protected enclosure 5 Reinstall the hub mounting nut to the mounting hub from inside the protected enclosure and tighten WARNING NOTICE THIS VENT MUST BE TESTEI PRIOR TO OPERATION OF TH PROTECTION SYSTEM SE BLUNT OBJECT TO PRY EPV 1 SA 00 Vertical Mount THIS VENT MUST BE TESTE PRIOR TO OPERATION OF TH PROTECTION SYSTEM SE BLUNT OBJECT TO Pro EPV 1 SA 90 Side Mount Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com Germany 49 621 776 2222 pa info de pepperl fuchs com Warning Nameplate s An EWN enclosure warning nameplate must be located in a prominent position on or near all enclosure accesses doors and covers One 1 EWN is provided with each system located in the manila envelope taped to the mounting flange of the system Additional EWNs are available from Pepperl Fuchs All EWNs provide labeled spaces allowing the customer to mark the protected enclosure with 1 a T Code temperature identification number 2 Class Group and Division of surrounding area and 3 NFPA pressurization Type X Y or Z as may be required by plant and local codes and is required by NFPA 496 section 2 11 An
24. enclosure applications Determine the mounting configuration of your system using the diagrams on pages 9 and 10 Remove and save the manila envelope containing the enclosure warning nameplate which may be taped to the outer surface of the mounting flange Although all systems are factory tested and calibrated we strongly suggest a bench test of basic functions prior to installation Mounting LH RH TM BM amp WM Configurations Surface mounting systems with ECK accessory 1 Verify dimensions of the system s mounting holes and connection fittings in reference to the applicable drawing on pages 9 and 10 2 Upon confirmation of dimensions transfer mounting hole pattern from drawing to the intended surface 3 Check for internal obstructions that could hinder bolt fastening and protective gas flow drill and ream the mounting holes before mounting the system 4 Remove locknuts on enclosure connection fittings 5 Secure the system to the protected enclosure using one 1 SMK 1 or equivalent four 4 1 4 x 3 4 stainless steel bolts nuts and lock washers 6 Install the locknuts on the enclosure connection fittings from inside of the protected enclosure ensuring that fittings seat directly against enclosure through the system mounting plate flange Surface mounting systems without ECK accessory 1 Transfer hole pattern of system mounting plate to intended surface 2 Check for obstructions hindering bolt faste
25. ent Enclosure pressure gauge Sintered vent Protected Enclosure J PEPPERL FUCHS PROTECTING YOUR PROCESS Part No 512091 Drawing No 129 0207a 03 09 Part No 512091 Drawing No 129 0207a 03 09 L Electrical Supply Requirements General Wiring Requirements WARNING This device contains electrical parts that can cause shock or injury All electrical connections conduit and fittings on the protected enclosure must be suitable for the hazardous location in which they are installed In addition all conduit and wire must be installed in accordance with NEC as required and all relevant plant and local codes Note Do not use seals on conduit used as a protected wireway to supply protective gas to adjacent protected enclosures The same conduit can be utilized for both electrical and pneumatic service to an adjacent protected enclosure s provided the conduit is oversized to allow a minimum free clearance equal to or larger than the pipe size required between multiple enclosures as stated on page 6 Getting Started Enclosure Power Requirements The protected enclosure s electrical power source must originate from a circuit breaker or fused disconnect suitable for the hazardous location in which it is installed The switch must be located within fifty 50 feet of the protected enclosure s and the protection system and be properly marked Alarm Signal Requirements For Type Y and Z purge systems
26. ents EPV 1 SA 00 EPV 1 SA 90 Straight w spark arrestor Rt angle w spark arrestor Additional Items SMK 1 4 or 6 System mounting kit EPSK 1 Class I Group C D pressure switch kit EPSK 1A Class I Group A D pressure switch kit EPSK 2 Class II Group E G pressure switch kit GPSK 1 Class I general purpose switch kit GPSK 2 Class Il general purpose switch kit RAH Div 1 remote alarm horn RAB 1 Div 1 remote alarm beacon RAB 2 Div 2 remote alarm beacon LCK L fitting conduit kit TCK T fitting conduit kit TR 10G Tamper proof regulator w gauge Enclosure amp Device Design Enclosure Design Requirements 1 All windows must be shatterproof and sized as small as possible All NFPA 496 required markings must be placed on or near all enclosure doors and covers The enclosure must withstand an internal pressure of ten 10 inches of water without sustaining permanent deformation and resist all corrosive elements in the surrounding atmosphere All lightweight objects in the enclosure such as paper or insulation must be firmly secured The enclosure should be constructed from materials such as metal or nonstatic polycarbonate to meet or exceed NEMA 4 or 12 performance requirements but does not require third party approval The installation of obstructions or other barriers that block or impede the flow of protective gas must be avoided The creation of air pockets or other areas that trap flammable gases wi
27. es by venting the purge pressure reference port and the protected enclosure to atmosphere and adjusting the calibration screw in the lower center portion of the indicator s face Fully open the enclosure pressure control regulator to blow out any deposits around the tip of the valve and to ensure that the enclosure protection vent is operating properly then carefully readjust system according to the set up procedure and operating sequence on pages 17 and 18 Replace or tighten stem packing nut as required to prohibit stem packing leakage Carefully disassemble the enclosure protection vent by loosening the two bottom hex nuts that hold the unit together DO NOT REMOVE CAP NUTS ON TOP OF VENT BODY Carefully clean the flapper valve and vent body seats with warm soap and water being careful not to extend the vent valve beyond its normal opening point and being careful not to exert any stress on the valve hinge Examine the entire protection system and the protected enclosure s and replace any defective parts during routine shutdown of the protected enclosure s Parts are available from Pepperl Fuchs on immediate notice as required MAINTENANCE SCHEDULE Date Work performed Performed by Subject to modifications without notice Copyright Pepperl Fuchs 22 Pepperl Fuchs Group USA 1 330 486 0002 Germany 49 621 776 2222 Singapore 65 6779 9091 fa PEPPERL FUCHS www pepperl fuchs com pa info us pepperl fuchs com pa info de pepperl fuc
28. fF PEPPERL FUCHS PROTECTING YOUR PROCESS Part No 512091 Drawing No 129 0207a 03 09 Part No 512091 Drawing No 129 0207a 03 09 Troubleshooting Procedures Problem or Fault Possible Causes Corrective Action Enclosure pressure control Leakage around gasketing covers Tighten enclosure latches Where tightening is not regulator will not hold a safe seams piping and tubing connections feasible and gasketing materials are not practical pressure conduit connections and electrical holes or gaps can be closed with silicone sealant conduit seals of the enclosure applied from inside the protected enclosure Enclosure pressure indicator Insufficient enclosure leakage or opening Remove the orifice cut off the crimped end and reading is difficult to stabilize of the venturi orifice is crimped too small ream the tube then recrimp and reinstall the tube to note effect As tube is shortened reamed and recrimped sensitivity decreases allowing easier adjustment of setpoint on the enclosure Enclosure pressure indicator Application involves a small tightly sealed Pre regulate the protective gas supply upstream of drifts up or down from the enclosure and or a fluctuating protective the enclosure protection system to 5 psi maximum Ale PERSU Sound gas supply For dramatic fluctuations in the protective gas supply it may be neccessary to utilize a self relieving low flow precision regulator to pre regulate the prote
29. hod System status Type Z purge pressurization system Local disconnect switch Protected equipment de energized alarm system and air supply on Operating Procedures 1 Check operation of enclosure pressure relief device if utilized and seal the protected enclosure 2 Pressurize the protected enclosure to set and maintain a minimum positive pressure of 0 10 inches 2 5 mm of water 3 Exchange the recommended volumes of purging gas Exception Power may be energized immediately if the protected enclosure atmosphere is known to be nonflammable 4 Energize the protected equipment power manually with a disconnect switch or breaker rated for the hazardous location 5 Loss of pressurization requires immediate attention or the manual de energizing of protected equipment power 6 Excessively hot equipment must be isolated in a separate protected enclosure unless the enclosure is marked with a warning which indicates a required cool down time period before access Model n Enclosure identification u pressure nameplate gauge Alk IP Tape iF Enclosure pressure control regulator Enclosure Pressure o ENCLOSURE PRESSURE CONTROL REGULATOR Class Il Pressurization Operation Start Up Conditions Protection method Powering method System status Type Z pressurization system Local disconnect switch Protected equipment de energized alarm system and air supply on Operati
30. hs com PROTECTING YOUR PROCESS Part No 512091 Drawing No 129 0207a 03 09 Part No 512091 Drawing No 129 0207a 03 09 Mounting Plate Dimensions 25 O D TYP 4 75 O D TYP 2 a o gt 11 LPS LH Left hand configuration T 20 4 3 375 3 2188 Lo 25 O D TYP 4 10 125 11 WPS amp WPSA RH Right hand configuration GE ach St iS 5 5 6 75 75 O D TYP 2 11 LPS TM Top mount configuration Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 Germany 49 621 776 2222 www pepperl fuchs com pa info us pepperl fuchs com pa info de pepperl fuchs com 7 29 75 O D TYP2 10 125 11 WPS amp WPSA LH Left hand configuration 5 57 4 3 375 3 2188 ie 25 O D TYP 4 75 O D TYP 2 11 LPS RH Right hand configuration a 13 375 25 O D TYP 4 7 25 4 o A x z S 11 125 75 O D Ol 12 125 TYP 2 11 WPS amp WPSA TM Top mount configuration Copyright Pepperl Fuchs Singapore 65 6779 9091 fa PEPPERL FUCHS 9 pa info sg pepperl fuchs com PROTECTING YOUR PROCESS Mounting Plate Dimensions continued e 13 375 12 125 75 O D TYP 2 969 9487 uGC90 11 125 25 O D TYP 4 7 25 11 WPS amp WPSA BM Bottom mount configuration 11 LPS WM Wall mount configuration TY
31. hs com pa info sg pepperl fuchs com PROTECTING YOUR PROCESS Part No 512091 Drawing No 129 0207a 03 09 BE Model 11 Installation and Operation Manual Systems Identification amp Application Information Date of installation Unit serial Item Customer P O Customer project Service Type Features Application Notes Part No 512091 Drawing No 129 0207a 03 09 Subject to modifications without notice Copyright Pepperl Fuchs Pepperl Fuchs Group USA 1 330 486 0002 Germany 49 621 776 2222 Singapore 65 6779 9091 B PEPPERL FUCHS 23 www pepperl fuchs com pa info us pepperl fuchs com pa info de pepperl fuchs com pa info sg pepperl fuchs com PROTECTING YOUR PROCESS ap For over a half century Pepperl Fuchs has provided new concepts for the world of process automation Our company sets standards in quality and innovative technology We develop produce and distribute electronic interface modules Human Machine Interfaces and hazardous location protection equipment on a global scale meeting the most demanding needs of industry Resulting from our world wide presence and our high flexibility in production and customer service we are able to offer complete individual solutions wherever and whenever you need us We are the recognized experts in our technologies Pepperl Fuchs has earned a strong reputation by supplying Ss industry companies the with the broadest line of proven components for a diverse range o
32. inum amp stainless steel 316 14 ga 3 brush SS EXP pressure switch body Anodized cast alum Enclosure warning nameplate Silkscreened SS Lexan is a registered trademark of the General Electric Corporation Recommended Spare Parts Qty Description Enclosure pressure indicator Cl Enclosure pressure indicator Cll Enclosure pressure control regulator Installation amp operation manual Group C D pressure switch Cl Group A D pressure switch Cl Group E G pressure switch Cll Enclosure warning nameplate Cl Enclosure warning nameplate Cll Part Supercedes 510036 001050 510037 001052 513315 002000 129 0207 510044 001080 510045 001085 513242 001082 St ee ee Nut 513008 EWN 1 513009 EWN 2 Please call and reference part number above for current spare parts pricing Immediate pricing is available to all confirmed customers h ee ee a oo a a h Installation Tools amp Testing Equipment 1 2 chuck drill Complete set of drill bits 1 2 conduit Knockout punch or 0 875 hole saw Complete set of tubing conduit bending instrument fitting and electrical craftsman hand tools 0 250 scfh flowmeter connected upstream of the Protection System to determine air consumption and flow during set up procedure Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com FJ PEPPERL FUCHS 3 PROTECTING YOUR PROCESS a Model 11 System Accessories Optional Enclosure Protection V
33. lkhead fitting See page 12 Pneumatic Tubing Requirements Pepperl Fuchs recommends the use of 035 wall thickness welded or seamless stainless steel tubing If flexible tubing is used it must be installed in a manner 2 l i Choose location for the system supply bulkhead fitting This that protects it from damage and corrosion fitting allows the protective gas supply to pass through the wall of a protected enclosure to the protection system s regulator supply inlet connection Tubing LH RH TM BM WM amp FM Configurations 3 System supply connections Choose location for the atmospheric reference bulkhead fitting This fitting allows the enclosure pressure gauge to reference atmospheric pressure 1 Select or install a protective gas supply header tap fitted 4 with the proper tube size fitting and located within twenty 20 feet of the enclosure protection system Drill and deburr system supply and reference bulkhead fitting holes in the protected enclosure Mount the fittings 2 If a service valve is placed between the protective gas System supply amp reference connections supply header and the enclosure protection system it must 1 be installed in close proximity of the protected enclosure and be labeled in accordance with NFPA 496 3 Select the appropriate fittings required to connect the 2 protective gas supply to the protection system regulator Select or install a protective gas supply header
34. n and Operation Manual Tubing Connection Diagrams LH RH TM BM WM amp FM Configuration Connection Points amp Pneumatic Diagram WPS amp WPSA Style Optional EXP pressure switch System AY supply i I Venturi I orifice pressure gauge Enclosure pressure gauge Enclosure reference inlet Venturi orifice Mounting plate Enclosure Sintered vent Reference Regulator Supply Enclosure supply bulkhead fitting LPS Style System supply inlet Enclosure pressure control regulator Enclosure supply outlet Optional enclosure protection vent Enclosure reference ee er enge 7 bulkhead fitting Protected Enclosure PM Configuration Connection Points amp Pneumatic Diagram Enclosure pressure gauge Atmospheric reference inlet PEPPERL FUCHS Mounting plate HELPFUL HINT Pneumatic connections are bolded Subject to modifications without notice 1 4 Pepperl Fuchs Group www pepperl fuchs com F Edpescoeprs USA 1 330 486 0002 pa info us pepperl fuchs com System supply inlet Enclosure pressure control regulator Enclosure supply outlet System AY Atmospheric supply reference I bulkhead l System supply l Inlet bulkhead S Se es ee lt 7 L Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info de pepperl fuchs com pa info sg pepperl fuchs com Germany 49 621 776 2222 Reference Optional enclosure protection v
35. ng Procedures 1 Remove hazardous substance from the protected enclosure A vacuum device is the preferred tool for dust removal 2 Check operation of enclosure pressure relief device if utilized and seal the protected enclosure 3 Pressurize the protected enclosure to set and maintain a positive pressure of 0 50 inches 12 7 mm of water 4 Energize the protected equipment power manually with a disconnect switch or breaker rated for the hazardous location 5 Loss of pressurization requires immediate attention or the manual de energizing of protected equipment power 6 Excessively hot equipment must be isolated in a separate protected enclosure unless the enclosure is marked with a warning that indicates a required cool down time period before access Enclosure pressure gauge Model identificatio nameplate clel HSC Tage Enclosure pressure control regulator Start up Ch TER BMS TOLMER TS HE HH CITE iH UA f HOUSEA CONTEC FOLAF ara HATAIDOUS LOCATON ae sjo instruction nameplate Model 11 LPS Front View EXP pressure Model 11 WPS amp WPSA Front View Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com 18 Germany 49 621 776 2222 pa info de pepperl fuchs com loss alarm switch Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com
36. ning drill and ream the mounting holes before mounting the system 3 Secure the system to the enclosure or other mounting surface using one 1 SMK 1 mounting kit or equivalent four 4 1 4 x 3 4 stainless steel bolts nuts and lock washers Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com Germany 49 621 776 2222 pa info de pepperl fuchs com Pipe mounting systems without ECK accessory 1 Locate 2 schedule 40 pipe vertical for LH amp RH horizontal for TM amp BM within five 5 feet of protected enclosure 2 Ensure system is mounted in a true vertical position secure the system to pipe using one 1 aPMK 1 mounting kit or equivalent two 2 1 4 x 2 stainless steel U bolts nuts and lock washers Mounting FM amp PM Configurations HELPFUL HINTS FM and PM configurations are designed to mount through a panel cutout one 1 inch smaller than the overall height and width of the system mounting plate using clips and fasteners provided with SMK 4 This design feature eliminates the need to drill the system mounting bolt holes in the protected enclosure FM configurations are intended for mounting adjacent to the protected enclosure PM configurations are intended for mounting through a cutout in the protected enclosure surface 1 Transfer panel cutout pattern to the intended surface 2 Check for obstru
37. onal enclosure protection vent or piping to an adjacent protected enclosure must exit near an extreme opposite top corner Connections for heavier than air gases and vapors If flammable gases are heavier than air inlet and outlet connections must be reversed In all cases the most prevalent gas must determine the Connections for lighter than location of inlet and outlet connections air gases and vapors Subject to modifications without notice Copyright Pepperl Fuchs 6 Pepperl Fuchs Group USA 1 330 486 0002 Germany 49 621 776 2222 Singapore 65 6779 9091 fa PEPPERL FUCHS www pepperl fuchs com pa info us pepperl fuchs com pa info de pepperl fuchs com pa info sg pepperl fuchs com PROTECTING YOUR PROCESS Part No 512091 Drawing No 129 0207a 03 09 Part No 512091 Drawing No 129 0207a 03 09 L System Mounting IMPORTANT NOTES The system should be mounted at EYE LEVEL Care must be taken to ensure the system and all protruding components are clear of all enclosure accesses doors and covers and conduit pipe tubing or cable entries LH RH TM BM and WM configurations are intended for mounting adjacent to the protected enclosure LH RH TM amp BM configurations are also suitable for 2 schedule 40 pipe mounting In addition these configurations can be accessorized with an ECK Enclosure Connection Kit See page 8 Systems furnished with a Model ECK are not compatible for pipe mounting or multiple
38. onflict between the provisions of this Limited Warranty and any provisions contained in any orders offers acceptances or other writings or statements provided or made by Customer to P F the provisions of this Limited Warranty shall prevail and the contract between P F and the Customer shall be deemed formed only upon the provisions set forth in this Limited Warranty and any additional or conflicting provision inserted by Customer shall be of no force or effect Subject to modifications without notice Copyright Pepperl Fuchs 20 Pepperl Fuchs Group USA 1 330 486 0002 Germany 49 621 776 2222 Singapore 65 6779 9091 fa PEPPERL FUCHS www pepperl fuchs com pa info us pepperl fuchs com pa info de pepperl fuchs com pa info sg pepperl fuchs com PROTECTING YOUR PROCESS Part No 512091 Drawing No 129 0207a 03 09 BI Model 11 Installation and Operation Manual Part No 512091 Drawing No 129 0207a 03 09 Subject to modifications without notice Copyright Pepperl Fuchs Pepperl Fuchs Group USA 1 330 486 0002 Germany 49 621 776 2222 Singapore 65 6779 9091 Fa PEPPERL FUCHS 21 www pepperl fuchs com pa info us pepperl fuchs com pa info de pepperl fuchs com pa info sg pepperl fuchs com PROTECTING YOUR PROCESS System Maintenance Regular Maintenance Drain the protection system regulator frequently and clean system with nonsolvent cleaning agents only Long Term Maintenance Calibrate the enclosure pressure indicator to 0 inch
39. or safe practical and efficient use of this product This system is not intended for use to protect enclosures or devices that contain ignitable concentrations of gases or vapors This exclusion generally applies to process or product analyzing systems equipment All specifications are subject to change without notice Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com fF PEPPERL FUCHS PROTECTING YOUR PROCESS Part No 512091 Drawing No 129 0207a 03 09 Part No 512091 Drawing No 129 0207a 03 09 Identifying Your System This enclosure protection system is offered in various styles For proper installation and operation examine the system model number nameplate to identify the system style area classification and type as noted below Model 11 LPS CH Type Y or Z 10 CUBIC FEET MAXIMUM ENCLOSURE VOLUME BEN INTERNAL AREA CLASSIFICATION nn ee PE Y CL Il DIV 1 GR F amp G TO CL I TYPEZ CL Il DIV 2 GR F amp GTO NONHAZARDOUS S gt kis us APPROVED PURGE CONTROL FOR USE IN HAZARDOUS LOCATIONS IN ACCORDANCE WITH THE NATIONAL FIRE PROTECTION ASSOCIATION STANDARD FOR PURGED AND PRESSURIZED ENCLOSURES FOR ELECTRICAL EQUIPMENT NFPA 496 1996 4511 APPROVED BY FM APPROVALS AS ASSOCIATED TYPE Y amp Z PRESSURIZATION CONTROL EQUIPMENT FOR USE IN HAZARDOUS LOCATIONS REDUCES THE INTERNAL AREA OF A CONNECTED ENCLOSURE IN ACCORDANCE WITH DRAWING NUMBER 11 IOM 11 LPS CI
40. pressed instrument air or inert gas It regulates and monitors pressure within sealed protected enclosures to prevent combustible dust accumulation or remove and prevent flammable gas or vapor accumulations In Class Il areas the system maintains a safe 1 0 pressure In Class areas the system accomplishes four air exchanges and maintains a safe 0 25 pressure These processes reduce the hazardous classified area rating within the enclosure s in accordance with the NEC NFPA 70 Article 500 NFPA 496 and ISA 12 4 Important Notes One 1 permanent file copy and one 1 operations copy of this manual must be studied and retained by the operator of this system User s agents are responsible for transferring this manual to the user prior to start up The contents of this manual have been arranged to allow the use of this product as a stand alone device on equipment and enclosures supplied by the user or its agents The manual s parameters encompass a combination of both National Fire Protection Association NFPA requirements and Pepperl Fuchs Inc requirements Pepperl Fuchs therefore acknowledges the use of NFPA 496 as a guideline that we have enhanced certain NFPA requirements and that additional information has been compiled to complete this document The manual is intended as a complete guide and must be considered unless specifically stated otherwise that all directives contained herein are requirements f
41. r components not manufactured by P F the Customer or any other user or owner shall have only the warranty provided by the manufacturer of such part or component The Limited Warranty set forth herein is also subject to the following 1 The Limited Warranty is limited to electronic and mechanical performance only as expressly detailed in the product specifications and does not apply to cosmetic appearance P The Limited Warranty shall not apply to any cables attached to or integrated with any Products The Limited Warranty shall not apply to any Products which are stored or utilized in harsh environmental or electrical conditions outside P F s written specifications THE LIMITED WARRANTY SET FORTH HEREIN IS THE ONLY WARRANTY MADE BY P F WITH RESPECT TO THE PRODUCTS IT IS EXPRESSLY AGREED AND UNDERSTOOD THAT P F MAKES NO WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE EXCEPT FOR THE LIMITED WARRANTY SET FORTH HEREIN THERE IS NO OTHER WARRANTY EXPRESS IMPLIED OR STATUTORY AND THERE IS NO AFFIRMATION OF FACT OR PROMISE BY P F WITH REFERENCE TO THE PRODUCTS IN NO EVENT SHALL P F BE LIABLE FOR ACTUAL OR ANTICIPATED LOST PROFITS OR FOR INCIDENTAL OR CONSEQUENTIAL OR PUNITIVE DAMAGES OR FOR DAMAGES RESULTING FROM BUSINESS INTERRUPTION OR INJURY OR DEATH OF PERSONS OR INJURY TO PROPERTY P F S LIABILITY ON ANY CLAIM OF ANY KIND ARISING OUT OF CONNECTED WITH OR RESULTING FROM THE DESIGN MANUFACTURE SALE REPAIR O
42. rical Supply Requirements 7 Install tubing and tighten all fittings to fitting manufacturer s Part No 512091 Drawing No 129 0207a 03 09 1 Choose location for the enclosure supply connection s based on the requirements on page 6 Getting Started Place the enclosure reference connection fitting directly behind the enclosure protection system whenever possible For systems protecting multiple enclosures in series the enclosure reference connection fitting must be placed on the last enclosure in the series See page 6 Getting Started Drill and deburr enclosure supply and reference fitting holes on the protected enclosure Mount the fittings Determine appropriate route for the enclosure supply and reference tubing Bend tubing using industrial grade benders check tubing fit to ensure proper seating between the tubing and fittings Fully ream all tubing ends Install tubing and tighten all fittings to fitting manufacturer s specifications Secure tubing to appropriate structural supports as required Subject to modifications without notice Pepperl Fuchs Group www pepperl fuchs com USA 1 330 486 0002 pa info us pepperl fuchs com Germany 49 621 776 2222 pa info de pepperl fuchs com specifications Secure tubing as required Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com J PEPPERL FUCHS PROTECTING YOUR PROCESS 13 Bl Model 11 Installatio
43. ss l applications Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com Germany 49 621 776 2222 pa info de pepperl fuchs com CLASS I VOLUME EXCHANGE TIME CHART MEASURED FLOW REQUIRED EXCHANGE TIME 0 10 SCFM 6 SCFH 40 minutes per cubic foot 0 25 SCFM 15 SCFH 0 50 SCFM 30 SCFH 0 75 SCFM 45 SCFH 1 SCFM 60 SCFH 2 SCFM 120 SCFH 3 SCFM 180 SCFH 4 SCFM 240 SCFH or greater NOTE The volume exchange time chart is based on a four 4 enclosure volume exchange Multiply the required exchange time above by 2 5 for applications requiring a ten 10 volume exchange motors 16 minutes per cubic foot 8 minutes per cubic foot 5 5 minutes per cubic foot 4 minutes per cubic foot 2 minutes per cubic foot 1 5 minutes per cubic foot 1 minute per cubic foot Regardless of enclosure volume or system flow rate it is required that operators withhold power to the enclosure while inducing Class exchange for at least five 5 minutes Normal exchange time calculations should be doubled if large obstructions block inert gas flow The start up instruction nameplate exchange time slot will be blank but the unit may feature a set of direct factor nameplates with self adhesive backing such as TEN MINUTES for application to the start up instructions dependent on how the system was specified and purchased Field modification of this nameplate
44. t No 512091 Drawing No 129 0207a 03 09 Part No 512091 Drawing No 129 0207a 03 09 Bl Model 11 Installation and Operation Manual Installation Overview Model 1002 WPS LH Shown ENCLOSURE PROTECTION VENT PROTECTED ENCLOSURE ENCLOSURE SUPPLY TUBING SYSTEM MOUNTING BOLT ENCLOSURE PROTECTION PROTECTIVE SYSTEM GAS SUPPLY SYSTEM SUPPLY FITTING SERVICE VALVE ENCLOSURE CONNECTION FITTINGS ENCLOSURE ENCLOSURE WARNING REFERENCE NAMEPLATE TUBING SYSTEM SUPPLY TUBING ELECTRICAL ALARM WIRING CONDUIT amp SEAL Subject to modifications without notice Copyright Pepperl Fuchs Pepperl Fuchs Group USA 1 330 486 0002 Germany 49 621 776 2222 Singapore 65 6779 9091 B PEPPERL FUCHS www pepperl fuchs com pa info us pepperl fuchs com pa info de pepperl fuchs com pa info sg pepperl fuchs com PROTECTING YOUR PROCESS 5 Getting Started Typical Single Protected Enclosure Connections ENCLOSURE PROTECTION VENT Optional 1 2 Var PROTECTIVE c GAS SUPPLY HEADER i a a zn REFERENCE sc I un Free ENCLOSURE F 4 PROTECTION Scie ee l SYSTEM SUPPLY I I _ A B C D E a Descistien System Enclosure Enclosure Multi enclosure Optional remote supply tubing supply reference connections venting co 1 4 O D tubing 1 4 O D tubing 1 4 O D tubing
45. tap fitted with the proper tube size fitting and located within twenty 20 feet of the enclosure protection system If a service valve is placed between the protective gas supply header and the protection system it must be in as determined on page 12 Pneumatic Connection Requirements close proximity of the protected enclosure and labeled in accordance with NFPA 496 4 Determine appropriate tubing route from the protective gas 3 Determine appropriate tubing route from the protective gas supply header to the protection system regulator supply header to the system supply bulkhead fitting 5 Bend tubing using industrial grade benders check tubing 4 Determine appropriate tubing route from the system supply fit to ensure proper seating between the tubing and fittings bulkhead fitting to the protection system regulator Fully ream all tubing ends 5 Determine appropriate tubing route from the atmospheric 6 Install tubing and tighten all fittings to fitting manufacturer s reference bulkhead fitting to the enclosure pressure gauge s specifications Secure tubing to appropriate structural supports as required reference inlet connection 6 Bend tubing using industrial grade benders check tubing fit to ensure proper seating between the tubing and fittings Enclosure supply amp reference connections i PPly Fully ream all tubing ends For systems supplied with an ECK enclosure connection kit go to page 15 Elect
46. tected by one of the following means a ventilated on the top and bottom sides with 1 in of opening for each 400 in of volume within the internal protected enclosure at a minimum diameter of 1 4 b purged in series with the protected enclosure or be purged separately or c protected by other means e g explosion proof enclosures hermetically sealed devices or intrinsic safe circuits Temperature Limitations 1 Germany 49 621 776 2222 pa info de pepperl fuchs com The enclosure must have no surface area that exceeds 80 percent of the flammable or ignitable substance s auto ignition temperature Internal devices that exceed this temperature must be protected by one of the following manners a The device is enclosed in a chamber that is cULus or FM listed as a hermetically sealed device that prohibits the entrance of a flammable or ignitable substance and maintains a surface temperature below temperature limits b It can be proven by testing that the devices will not ignite the substance involved c The device is purged in a separate enclosure that bears an ETW enclosure temperature warning nameplate Devices may be accessed only after power has been removed and the device has been allowed to cool to safe temperature or the area is positively known to be nonhazardous Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com J PEPPERL FUCHS PROTECTING YOUR PROCESS Par
47. thin the enclosure or devices must be avoided The enclosure should be located in an area where impact hazards are minimal If the enclosure is nonmetallic and contains equipment that utilizes or switches power loads greater than 2500 VA it must be constructed from substantially noncombustible materials such as materials designed to meet or exceed ANSI UL94 ratings of 94 V O or 94 5V Adjacent Enclosures 1 2 Adjacent enclosures must be protected by one of the following means a purged or pressurized in series with the protected enclosure b purged or pressurized separately or c protected by other means e g explosion proof enclosures hermetically sealed devices or intrinsic safe circuits Adjacent purged or pressurized enclosures must be designed to meet all construction requirements above Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com Total Volume Calculation 1 2 The total volume of all pressurized enclosures devices and wireways must be considered All enclosure device and wireway volumes must be calculated without consideration of internally consumed space Device Ventilation 1 Enclosed devices within the protected enclosure which do not exceed 1 22 in of free volume do not require ventilation to the protected enclosure If the free volume of an internal device exceeds 1 22 in it must be pro
Download Pdf Manuals
Related Search