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Model 2001AInstallation and Operation Manual

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1. ENCLOSURE REFERENCE TUBING ENCLOSURE ENCLOSURE PROTECTION lt gt CONNECTION SYSTEM FITTINGS SERVICE VALVE PROTECTIVE GAS SUPPLY SYSTEM SUPPLY TUBING Chak theo _ ok ec ek eee ss oP ee Se ee ee ee TTT ee ee YTT ee Tae te 3 7 z _ pepa PA eae aapa Dusit pattan i 7 k 5 i 3 ENCLOSURE EPCU BREATHER WARNING DRAIN FITTING NAMEPLATE i d z EPCU POWER amp ALARM SIGNAL 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 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 5 Getting Started Typical Single Protected Enclosure Connections ENCLOSURE PROTECTION VENT 1 2 l PROTECTIVE GAS SUPPLY Optional HEADER Se a REFERENCE lk s ee ae ENCLOSURE l l F PROTECTION AREE l SYSTEM SUPPLY l l HA H ms O A B C D E Description System Enclosure Enclosure Multi enclosure Optional remote supply tubing supply reference connections renting eae 1 4 O D tubing 1 4 O D tubing 1 4 O D tubing 1 2 I D pipe 1 2 D pipe Tubing or pipe diameter tully reamed tully reamed tully reamed tully reamed tully reamed Maximum tubing pipe leng
2. Panel Cutout 21 2001A STD FM amp 2001A STD PM Frame amp panel mount configuration Subject to modifications without notice Copyright Pepperl Fuchs 10 Pepperl Fuchs Group USA 1 330 486 0002 Germany 49 621 776 2222 Singapore 65 6779 9091 www pepperl fuchs com pa info us pepperl fuchs com pa info de pepperl fuchs com pa info sg pepperl fuchs com TYPICAL WM MOUNTING FLANGE J PEPPERL FUCHS PROTECTING YOUR PROCESS Part No 512166 Drawing No 129 0208a 03 09 Part No 512166 Drawing No 129 0208a 03 09 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 w
3. 10 CUBIC FEET MAXIMUM ENCLOSURE VOLUME CLASS II DIVISION 1 GROUPS E F amp G TO NONHAZARDOUS SSIF Ne Wus T3C APPROVED PURGE CONTROL FOR USE IN HAZARDOUS LOCATIONS CLASSIFIED BY UNDERWRITERS LABORATORIES INC IN ACCORDANCE WITH THE NATIONAL FIRE PROTECTION ASSOCIATION STANDARD FOR PURGED AND PRESSURIZED ENCLOSURES FOR ELECTRICAL EQUIPMENT NFPA 496 1996 APPROVED BY FM APPROVALS AS ASSOCIATED TYPE X PRESSURIZATION CONTROL EQUIPMENT FOR USE IN HAZARDOUS LOCATIONS REDUCES THE INTERNAL AREA OF A CONNECTED ENCLOSURE IN ACCORDANCE WITH DRAWING NUMBER MCL 2001A 2001A STD Cl NR LH Series Model Sumber System Style STD Standard Area Classification CI Class l Group C amp D Area CII Class Il Group E F amp G Area IB Class l Group B Area Power Control Mode NR Normal Running CB Conditional Bypass Mounting Configuration LH lefthand 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 FM amp PM configurations feature flush mount EPCU Flush mount EPCU is not suitable for Group B Area Additional factory installed accessories NOTE Only FM certified Group B system available General Information System Specifications System dimensions Shipping weight
4. Ibs Operating temp range 20 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 Class exchange time As required System supply port 1 4 tube fitting Enclosure supply fitting 1 4 tube fitting Enclosure reference fitting 1 4 tube fitting EPCU conduit port size 1 2 FPT EPCU power requirements 120 VAC 60 Hz 10 European 240 voltage only 240 VAC 50 Hz 10 See pages 9 amp 10 38 EPCU power consumption 500 mA Power relay contacts 20 Amps 240 VAC 20 Amps 28 VDC 20 Amps 48 VDC 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 Alarm relay N O contact 20 Amps 240 VAC 20 Amps 28 VDC Alarm relay N C contact 15 Amps 240 VAC 10 Amps 28 VDC With EPV 1 vent 120 psi max to 5 psi minimum Without EPV 1 vent 5 psi maximum 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 EPV 1 enclosure protection vent on the protected enclosure b Install a tamper proof regulator
5. 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 vents can be tested by removing the pipe 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 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 using a suitable vacuum tool 3 Check operation of enclosure protection vent if utilized Model eee identification nameplate Enclosure pressure control regulator Conditional bypass operating instructions EPCU power selector iy switch Seal all protected enclosure s Depress the on off pushbutton NR mode or turn selector switch to the on position CB mode All LEDs should illuminate fully for two seconds self test then all LEDs should turn off except power off solid red and alarm activated flashing red LEDs Turn enclosure pressure control regulator slowly CW to set the enclosure pressurelndicator to a
6. enclosure and or a fluctuating protective the enclosure protection system to 5 psi maximum Sale PERSU SEURI gas supply For dramatic fluctuations in the protective gas supply it may be necessary to utilize a self relieving low flow precision regulator to pre regulate the protective gas supply Enclosure pressureindicator Conduit seal between EPCU and With area positively known to be non hazardous reads a safe pressure but protected enclosure is not poured or is remove screw cover of the EPCU and attempt a the safe pressure LED is not leaking pressure back into the EPCU complete start up procedure If the system works illuminated properly check enclosure power conduit seal for leakage and the EPCU breather drain for blockage If the system does not operate properly calibrate the safe pressure switch Safe pressure switch is out of calibration Calibrate by slowly adjusting clockwise to decrease the setpoint and counterclockwise to raise the setpoint EPCU breather drain is clogged all systems except PM configurations Do not attempt to calibrate the switch until all efforts to make the switch respond properly have failed Problems persists or if the Persisting problems 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 c
7. 30 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 512166 Drawing No 129 0208a 03 09 Part No 512166 Drawing No 129 0208a 03 09 Model 2001A installation and Operation Manual Notes Systems Identification amp Application Information Date of installation Unit serial Item Customer P O Customer project Service Type Features Application 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 Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com J PEPPERL FUCHS PROTECTING YOUR PROCESS 31 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 wh
8. Mounting LH RH TM BM amp WM Configurations 1 Transfer hole pattern of system mounting plate to intended surface 2 Check for obstructions hindering bolt fastening 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 3 or equivalent six 6 3 8 x 3 4 stainless steel bolts nuts and lock washers WM requires one 1 SMK 2 or equivlent four 4 3 8 x 3 4 stainless steel bolts nuts and lock washers Typical Surface Mounted System Model 1002 LPS LH Type Z shown 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 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 10 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 Check for obstructions that could prohibit bolt fastening or syst
9. USA 1 330 486 0002 pa info us pepperl fuchs com Pepperl Fuchs Group www pepperl fuchs com EPCU Conduit Connection Parts Fitting Kits Can Be Factory Furnished 1 To connect enclosure power from the EPCU to the protected enclosure one 1 LCK L fitting Conduit Kit or equivalent conduit elbow coupling and seal fittings 2 For EPCU to enclosure wiring connection with one 1 additional conduit connection path one 1 TCK T fitting Conduit Kit or equivalent conduit tee coupling and seal fittings IMPORTANT NOTE Model LCK amp TCK are offered primarily to OEMs attempting to achieve a field ready installation In all cases limited pipe fitting skills will be required Pre cut 150 galvanized steel pipe nipples can be acquired from local plumbing shops but a hole saw or punch and wrenches are required to install kits a oa Y TCK T Fitting Conduit Kit amti a m a ap WO 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 512166 Drawing No 129 0208a 03 09 Part No 512166 Drawing No 129 0208a 03 09 EPCU 120 240 VAC Power Module Layout Voltage seader factory set for 120 VAC power 1 Amp input fuse Rapid Exchange solenoid valve RESV RESV factory wiring terminal 20 Amp enclosure power Isolated coil voltage transformer input selector
10. 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 512166 Drawing No 129 0208a 03 09 Part No 512166 Drawing No 129 0208a 03 09 Conduit seal Union 4h r dl Electrical amp Pneumatic Diagrams LH RH TM BM WM amp FM Configurations Optional enclosure protection vent Electrical power supply conduit hub Union Conduit seal Enclosure Breather Sintered reference System Venturi drain vent tubing Enclosure reference Supply orifice bulkhead fitting l Electrical power Enclosure i control unit pressure gauge l Enclosure l System supply supply i tubing tubing Enclosure supply Electrical power supply conduit hub Atmospheric pressure reference bulkhead fitting System 1 supply T l System supply l bulkhead fitting l l Inlet k i Subject to modifications without notice Pepperl Fuchs Group www pepperl fuchs com USA 1 330 486 0002 pa info us pepperl fuchs com bulkhead fitting Enclosure pressure control regulator Protected enclosure PM Configurations Optional enclosure protection vent Union Union Conduit seal alm Hl Se Electrical power Conduit seal conduit Electrical power to enclosure Enclosure pressure reference Enclosure pressure reference Atmospheric reference Electrical power co
11. equivalent fitting per system 4 One 1 lot of 1 4 O D 035 wall thickness welded or seamless stainless steel tubing 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 PRB 4 SYSTEM ATMOSPHERIC REFERENCE FITTING Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com F2PEPPERL FUCHS 4 PROTECTING YOUR PROCESS Model 2001A installation and Operation Manual LH RH TM BM WM amp FM Configuration Connection Points Enclosure System pressure supply gauge inlet Enclosure reference Enclosure inlet pressure control regulator iol Enclosure arrestor Supply Venturi outlet orifice Mounting plate PM Configuration Connection Points Enclosure System pressure supply gauge inlet Atmospheric reference Enclosure inlet pressure control regulato
12. relay fuse es E 7 Ms 2 es 2 S 3 ikt EPCU 120 240 VAC Power control switch cable header Pressure switch cable header Logic module cable header Redundant safe pressure relay Alarm relay Feri OL raya G Enclosure power relays Power module wiring terminal power module VAC amp VDC Power Module Electrical Wiring Diagram Field wired power module terminals EPCU power supply terminals 120 VAC Isolated Isolated enclosure Alarm power relays relay NO NO NO NC Gnd Hot Neu 240 VAC optional voltage Gnd Hot Neu European single phase 240 VAC only Power and alarm terminals are feed thru dry switch contacts Caution should be exercised to ensure that the EPCU wiring is properly connected All terminal connections to the EPCU should be wired with spade or round lugs 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 Enclosure power NO Com NC supply Remote alarm terminals relay terminals Using 12 gauge maximum to 16 gauge minimum wire only check EPCU power requirements See page 14 and wire to the EPCU power source and alarm system if utilized Then route power source s through the EPCU power in and out terminals to all non rated devices within the protected enclosure s
13. safe 1 0 inch pressure The safe pressure and power on LEDs should be on the alarm active should be off The EPCU will energize enclosure power at this time Check for a 0 50 to 0 55 inch trip point by slowly stroking the indicator from 0 40 to 1 0 inch readings The safe pressure power on and alarm active LEDs should turn on and off when the indicator reads between 0 50 and 0 55 inches NOTE If pressure setting is difficult to stabilize or set see page 25 Troubleshooting Procedures Having ensured that all LEDs are functioning properly start up procedures located on page 25 may now be followed to step through a complete start up cycle ensuring that the system functions normally during all phases of operation a Enclosure pressure gauge Start up instruction nameplate Ce te status I nameplate EXP EPCU enclosure System LED display Model 2001A STD LH 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 Germany 49 621 776 2222 pa info de pepperl fuchs com pa info sg pepperl fuchs com Copyright Pepperl Fuchs Singapore 65 6779 9091 FAPEPPERL FUCHS 93 PROTECTING YOUR PROCESS a 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 protec
14. switch status and by a red LED to show faulted line breakage cable status All barriers can be reprogrammed to duplicate other barrier functions as required upon specific request Optional ISB Factory Programing Barrier A Function when switch opens Disables start up cycle Deenergizes enclosure power and alarm relay Functions parallel to safe pressure switch Barrier B Function when switch opens Not programmed for this model custom applications only Barrier C Function when switch closes Energizes RESV Relay custom applications only LED Display Indicators Power off Enclosure power relays deenergized Power on Enclosure power relays energized Safe pressure Enclosure pressure gt 0 15 or 0 50 w c Timer running Exchange timer active Class only Alarm active Enclosure pressure lt 0 15 or 0 50 w c Bypass engaged Control bypass active CB mode 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 Field Adjustable Timer Functions EDT Exchange Delay Timer FA style only provides a time delay to prevent Rapid Exchange solenoid valve from energizing until safe pressure can be stabilized SLT Solenoid Latching Timer FA style only provides a time delay to keep the Rapid Exchange solenoid valve energized until Rapid Exchange pressure is detected If the pressure
15. switch may be set to bypass position to temporarily latch enclosure power relays A flashing LED then indicates bypass engaged and the enclosure can then be accessed without deenergizing power performed under specific conditions Following access safe pressure must be reestablished to resume normal operation At that time the switch may be reset to the on position without disruption of enclosure power Alarm relay normally deenergizes only upon loss of safe pressure but can be factory programmed to deenergize when bypass is engaged if specified at time of order Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com fF PEPPERL FUCHS PROTECTING YOUR PROCESS Part No 512166 Drawing No 129 0208a 03 09 Part No 512166 Drawing No 129 0208a 03 09 Barriers amp Field Adjustments Optional Intrinsic Safety Barriers Description The EPCU Logic Module can accommodate up to three intrinsic safety barriers to interact with remote devices and affect operation of the EPCU The barriers are installed and programmed by the factory at time of order and they are designed to function either in conjunction with a customer furnished switch and a Pepperl Fuchs furnished resistor network cable or a Pepperl Fuchs furnished proximity detector Each barrier develops a low power signal to create a two wire closed loop circuit Operational status of each barrier is indicated by a green LED to show active closed
16. 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 EPV 1 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 TR 10G tamperproof regulator accessories or equivalent Enclosure integrity determines actual flow rate Time required to exchange 4 volumes within the enclosure s based on actual measured safe pressure flowrate or 5 minutes whichever is greater 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 Stainless steelscrews amp bolts 316 14 ga 3 brush SS EPCU enclosure body Bead blast 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 reg
17. used to supply protective gas to other enclosures or devices Typical Enclosure Wiring Connections te Explosion Conduit c2 proof device TA a274 Seal Aloe j Intrinsically safe or fiber optic device att Seal Intrinsically safe or fiber optic device Independently pressurized device Adjacent pressurized Pressurized oe ai raceway Protected enclosure or device Copyright Pepperl Fuchs Singapore 65 6779 9091 fa PEPPERL FUCHS pa info sg pepperl fuchs com PROTECTING YOUR PROCESS Part No 512166 Drawing No 129 0208a 03 09 Part No 512166 Drawing No 129 0208a 03 09 L Electrical Power Control Unit General Layout amp Electrical Conduit Connections EPCU electrical rating nameplate Power mode selector switch optional mounting hole factory use only Power mode selector switch Type 7 explosion proof enclosure LED display Type 7 explosion proof screw cover A 1 2 NPT conduit connection ports Type 7 a s typical 6 explosion proof Pp see important notes breather drain g below see important notes below IMPORTANT NOTES For proper moisture drainage of the Type 7 enclosure the installer must 1 move the Type 7 breather drain to one of the bottom conduit entrances or 2 use drain seals on all conduit connected to the bottom two conduit entrances The Type 7 breat
18. Copyright Pepperl Fuchs Singapore 65 6779 9091 fa PEPPERL FUCHS 19 pa info sg pepperl fuchs com PROTECTING YOUR PROCESS a Logic Module amp Barrier Wiring EPCU Logic Module amp Pressure Switch Module Barrier fault amp active status indicators Primary microprocessor Barrier C socket 1 1 Barrier B J E e installed e ig Barrier A socket TER Muhit wh i EP AYPAgS O8G4080 Pear se CLO POWER PEMA USEDGUTS Whi YEAS i ENCLADED Barrier wiring terminal B betes Pa COTS Lite Pressure switch c LED status calibration access display EPCU Logic Module Optional ISB Wiring Requirements BLUE BROWN INTRINSICALLY SAFE AUXILIARY INPUTS All optional intrinsic safety IS wiring must be isolated from all other electrical wiring using the dedicated IS conduit entrances and wireway of the EPCU See Optional ISB Conduit Installation on page 18 for more details In addition all wiring must be installed in accordance with the NEC and all relevant local and plant codes The intrinsic safety barriers are designed to function in conjunction with a customer furnished switch and SRM 4000 switch resistor module or an NJ NAMUR sensor The customer supplied switch must have dry contacts which contain no inductance or capacitance The SRM 4000 switch resistor module and the NJ NAMUR sensor are supplied with approximately ten 10 feet of wiring Using 16 to 18 g
19. EPPERL FUCHS INC Printed in USA e Part No 512166 Drawing No 129 0208a TDOCT 1362_ENG 03 09
20. FM 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 4 minutes per cubic foot 2 minutes per cubic foot 1 5 minutes per cubic foot 1 minutes per cubic foot Regardless of enclosure volume or system flow rate Pepperl Fuchs requires 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 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 Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com fF PEPPERL FUCHS PROTECTING YOUR PROCESS Part No 512166 Drawing No 129 0208a 03 09 Part No 512166 Drawing No 129 0208a 03 09 L Class Il Set up Procedure HELPFUL HINTS
21. 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 inches 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 22 24 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 Dae Work performed Performed by Subject to modifications without notice Copyright Pepperl Fuchs
22. N DEENERGIZED FOR THE TIME SPECIFIED BELOW Enclosure temperature warning nameplate Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com fF PEPPERL FUCHS PROTECTING YOUR PROCESS Part No 512166 Drawing No 129 0208a 03 09 Part No 512166 Drawing No 129 0208a 03 09 2001A STD LH Left hand configuration Mounting Plate Dimensions IMPORTANT NOTE Dimensions DO NOT include systems ordered with an area classification of IB Class I Division 1 Group B Consult factory for mounting plate dimensions 10 375 19 25 2001A STD TM Top mount configuration 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 2001A STD RH Right hand configuration 2001A STD BM Bottom mount configuration Copyright Pepperl Fuchs Singapore 65 6779 9091 fa PEPPERL FUCHS pa info sg pepperl fuchs com PROTECTING YOUR PROCESS 9 Mounting Plate Dimensions continued 2001A STD WM Wall mount configuration IMPORTANT NOTE Dimensions DO NOT include systems ordered with an area classification of IB Class I Division 1 Group B Consult factory for mounting plate dimensions 25 O D Panel Cutout lt lt 12 O O lt v
23. PROCESS AUTOMATION INSTALLATION AND OPERATION MANUAL MODEL 2001A TYPE X PURGE PRESSURIZATION SYSTEM PEPPERL FUCHS L LEL CREOLE 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 Spare parts Tools amp test equipment System accessories 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 Hardware Mounting Optional enclosure protection vent Warning nameplates Mounting Plate Dimensions Mounting plate dimension diagrams Pneumatic Tubing Requirements Protective gas supply requirements Pneumatic connection requirements Tubing Connection Points LH RH TM BM WM FM amp PM configurations Tubing Installation LH RH TM BM WM FM amp PM Tubing configurations Electrical Supply Requirements General wiring requirements EPCU power amp ala
24. S 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 512166 Drawing No 129 0208a 03 09 Model 2001A Installation and Operation Manual Part No 512166 Drawing No 129 0208a 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 27 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 E Model 2001A Installation and Operation Manual Part No 512166 Drawing No 129 0208a 03 09 Subject to modifications without notice Copyright Pepperl Fuchs 28 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 Model 2001A Installation and Operation Manual Part No 512166 Drawing No 129 0208a 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 29 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
25. auge shielded wire the cable lengths can be extended to a maximum of 100 feet In all applications the module of the switch resistor module cable must be installed as close to the customer supplied switch as possible for proper operation Wiring lugs are not recommended for intrinsic safety barrier wiring connections See page 21 for barrier operation and factory programing Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com 20 EDT SLT amp RET timers Germany 49 621 776 2222 pa info de pepperl fuchs com Factory Primary safe programing pressure switch header Space for optional erties ni E redundant safe pressure G AL switch Power module cable header EPCU pressure switch module EPCU Power Control Modes Normal Running NR Mode EPCU features an on off pushbutton power control switch to activate control functions Switch must be depressed to initiate start up After completion of start up safe pressure must be lost or switch must be depressed to deenergize enclosure power relays Conditional Bypass CB Mode EPCU features an on off bypass power control switch to activate control functions Switch must be set to on position to initiate start up After enclosure power is energized safe pressure must be lost or switch must be set to off position to deenergize enclosure power After enclosure power is energized
26. cure tubing to appropriate structural supports as required 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 Tubing PM Configurations Enclosure bulkhead fittings 1 Select the fittings required to install the system supply system supply bulkhead Fitting and atmospheric reference bulkhead fitting See page 11 Pneumatic Tubing Requirements 2 Choose location for the system supply bulkhead fitting This fitting allows the protective gas supply to pass through the wall of a protected enclosure to the protection system s regulator supply inlet connection 3 Choose location for the atmospheric reference bulkhead fitting This fitting allows the enclosure pressure gauge to reference atmospheric pressure 4 Drill and deburr system supply and reference bulkhead fitting holes in the protected enclosure Mount the fittings System supply amp reference connections 1 Select or install a protective gas supply header tap fitted with the proper tube size fitting and located within twenty 20 feet of the enclosure protection system 2 If a service valve is placed between the protective gas supply header and the protection system it must be in close proximity of the protected enclosure and labeled in accordance with NFPA 496 3 Determine appropriate tubing route from the protectiv
27. d by removing the pipe 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 protection vent if utilized 4 Seal enclosure s and adjust enclosure pressure control regulator by opening slowly clockwise CW to set a safe 0 25 inch pressure on the enclosure pressure indicator NOTE If pressure setting is difficult to stabilize or set see page 25 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 located to the left Close the enclosure pressure control regulator fully 6 Set RET timer See page 21 for timer location for required exchange time based on the Class volume exchange time five 5 minute minimum 7 Install and tighten cover of EPCU Ensure the conduit is sealed with approved compounds 8 Depress the On Off pushbutton NR mode or turn selector switch to the On position CB mode All LEDs should illuminate fully for two seconds self test then all LEDs shou
28. e gas supply header to the system supply bulkhead fitting 4 Determine appropriate tubing route from the system supply bulkhead fitting to the protection system regulator 5 Determine appropriate tubing route from the atmospheric reference bulkhead fitting to the enclosure pressure gauge s reference inlet connection 6 Bend tubing using industrial grade benders check tubing fit to ensure proper seating between the tubing and fittings Fully ream all tubing ends 7 Install tubing and tighten all fittings to fitting manufacturer s specifications Secure tubing as required Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com FAPEPPERL FUCHS 43 PROTECTING YOUR PROCESS Electrical Supply Requirements General Wiring Requirements WARNING This device contains electrical parts which 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 Conduit seals must be utilized on all electrical conduit connections and poured with an approved compound prior to operation of the protection system Exception Do not use seals on conduit used as a protected wireway to supply protective gas to adjacent protected enclosures The same conduit can be utiliz
29. ed 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 HELPFUL HINT Pepperl Fuchs recognizes 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 Pepperl Fuchs recommends the use of temporary seals such as duct seal or masking tape for bench or shop testing prior to final field installation EPCU Power Requirements The electrical power control unit s EPCU electrical power source must originate from a circuit breaker or fused disconnect suitable for the hazardous location in which it is installed The power source should be uninterrupted and the switch must be located within fifty 50 feet of the protected enclosure s and the enclosure protection system and be properly marked For EPCU power specifications see page 3 System s Specifications Alarm Signal Requirements Pepperl Fuchs strongly recommends use of the optional alarm system contacts of the EPCU connected to an alarm system located in a constantly attended location to indicate the failure of the enclosure protection system For EPCU alarm signal specifications see page 3 System s Specif
30. efect 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 or 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 electrica
31. em pneumatic and electrical connections 3 Cut panel cutout pattern on the intended surface 4 Deburr all cutout surfaces oI Typical Pipe Mounted System Model 1002 LPS LH Type Z shown Secure system to enclosure using SMK 10 or equivalent ten 10 1 4 x 3 4 stainless steel nuts bolts mounting clips and lock washers Model 1002 LPS PM Type Z shown Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com J PEPPERL FUCHS PROTECTING YOUR PROCESS Typical Panel Frame Mounted System 7 a 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 6 Getting Started 3 Using a 0 875 hole saw or 1 2 conduit punch drill and deburr 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 enclosu
32. enever 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 ion El Worldwide German Headquarters Pepperl Fuchs GmbH 2 Mannheim Germany Tel 49 621 776 2222 E Mail pa info de pepperl fuchs com B Asia Pacific Headquarters Pepperl Fuchs PTE Ltd Singapore Company Registration No 199003130E Tel 65 6779 9091 E Mail pa info sg pepperl fuchs com gt Ell Central Western Europe amp vy Africa Headquarters A 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 E North Central America Headquarters E South America Headquarters Pepperl Fuchs Inc Pepperl Fuchs Ltda Twinsburg Ohio USA Sao Bernado do Campo SP Brazil o 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 FJ PEPPERL FUCHS www pepperl fuchs com PROTECTING YOUR PROCESS Subject to modifications 2009 P
33. equired to connect the protective gas supply to the protection system regulator as determined on page 11 Pneumatic Tubing Requirements 4 Determine appropriate tubing route from the protective gas supply header to the protection system regulator 5 Bend tubing using industrial grade benders check tubing fit to ensure proper seating between the tubing and fittings Fully ream all tubing ends 6 Install tubing and tighten all fittings to fitting manufacturer s specifications Secure tubing to appropriate structural supports as required Enclosure supply amp reference connections 1 Choose location for the enclosure supply connection s based on the requirements on page 6 Getting Started 2 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 3 Drill and deburr enclosure supply and reference fitting holes on the protected enclosure Mount the fittings 4 Determine appropriate route for the enclosure supply and reference tubing 5 Bend tubing using industrial grade benders check tubing fit to ensure proper seating between the tubing and fittings Fully ream all tubing ends 6 Install tubing and tighten all fittings to fitting manufacturer s specifications Se
34. es For proper installation and operation begin by examining the EPCU electrical rating nameplate to identify the system input voltage and power requirements enclosure power and alarm contact ratings and third party approval markings Next match the LED display of your EPCU with one of the displays shown on page 15 The EPCU LED Display will help identify the options featured on your system e g normal running mode or conditional bypass Class purging timer or Class II pressurization no timer EPCU SERIAL REQUIRED WARNING NUMBER STATEMENTS MODEL 2000 ELECTRICAL POWER CONTROL UNIT CAUTION OPEN CIRCUIT BEFORE REMOVING COVER ATTENTION OUVRIR LE CIRCUIT AVANT D ENLEVER LE COUVERCLE SERIAL NO INPUT VOLTAGE amp POWER REQUIREMENTS CSA Encl 3 ENCL POWER amp ALARM CONTACTS CLASS I DIV 1 Gr C amp D ARE RATED 120 240 VAC 20 AMPS CLASS Il DIV 1 Gr E F G HAS E 120 SINGLE PHASE 60 CYCLE 1 AMP UL amp FM APPROVALS ONLY E 240 SINGLE PHASE 50 CYCLE 1 AMP AREA CLASSIFICATION EPCU INPUT POWER REQUIREMENTS Defines the area classifications for which the EPCU is suitable for Factory set at time of order operation Assembled EPCU Electronics Module Logic module Power module cable 120 240 VAC Power module Pressure switch module Subject to modifications without notice Copyright Pepperl Fuchs 1 6 Pepperl Fuchs Group USA 1 330 486 0002 Germany 49 621 776 2222 Singapore 65 6779 9091 fa PEPPERL
35. her drain is not provided or required with PM configurations Top two conduit entrances will be dedicated for Intrinsic Safe wiring ONLY when the EPCU is supplied with Pepperl Fuchs optional ISB intrinsic safety barriers EPCU LED Displays SAFE PRESSURE POWER D i POWER TIMER RUNNING e ALARM ACTIVE SERIES 2000 ELECTRONIC POWER CONTROL UNIT Class alarm only SAFE PRESSURE POWER e j ALARM ACTIVE SERIES 2000 ELECTRONIC POWER CONTROI POWER e Class Il alarm only 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 SAFE PRESSURE POWER TIMER RUNNING POWER a EN GF ALARM BYPASS AC WARNING ENGAGED ENCLOSURE POWER REMAINS ENERGIZED WHEN BYPASS 5 ENGAGED SERIES 2000 ELECTRONIC POWER CONTROL UNIT Class alarm amp bypass SAFE PRESSURE POWER POWER OFF ON ALARM BYPASS ACTIVE WARNING ENGAGED ENCLOSURE POWER REMAINS ENERGIZED WHEN BYPASS IS ENGAGED SERIES 2000 ELECTRONIC POWER CONTROL UNIT Class Il alarm amp bypass Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com FAPEPPERL FUCHS 45 PROTECTING YOUR PROCESS EPCU Power Rating EPCU Electrical Power Rating Nameplate The EPCU Electrical Power Control Unit of this Type X purging pressurization system is offered in various styl
36. ications Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com 14 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
37. is not detected the EPCU will reset RET Rapid Exchange Timer provides a time delay after Rapid Exchange pressure is detected to allow four volume exchanges ten volumes for motors prior to energizing the enclosure power relays In Class areas only if Rapid Exchange pressure is lost or interrupted during time delay cycle the EPCU will reset EDT SLT amp RET Timer Settings Rotary switch body EDT amp SLT Timer RET Timer POSITION TIME IN SECONDS POSITION TIME IN MINUTES 0 5 0 5 1 10 1 10 2 15 2 15 3 20 3 20 4 25 4 25 5 30 5 30 6 35 6 35 7 40 7 40 8 45 8 45 9 50 9 50 A 55 A 55 B 60 B 60 C 65 C 65 D 70 D 70 E 75 E 75 F 80 F 80 NOTE Power must be removed from the EPCU via the local disconnect switch for approximately 10 seconds for timer adjustments to reset EDT amp SLT timers are not functional on model 2001A Copyright Pepperl Fuchs Singapore 65 6779 9091 fa PEPPERL FUCHS 21 pa info sg pepperl fuchs com PROTECTING YOUR PROCESS L Class Set up Procedure HELPFUL HINTS 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 vents can be teste
38. ith a tamper proof regulator set at 5 psi maximum 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 SC 4 NC 4 EPC 10 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 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 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
39. l 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 OR 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 a
40. lammable gases are heavier than air inlet and outlet connections must be reversed In all cases the most prevalent gas must determine the location of inlet and outlet connections Connections for lighter than 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 512166 Drawing No 129 0208a 03 09 Part No 512166 Drawing No 129 0208a 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 Determine the mounting configuration of your system using the diagrams on pages 9 amp 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
41. ld turn off except Power Off Solid red and Alarm Activated flashing red LEDs 9 Turn enclosure pressure control regulator slowly CW to set the enclosure pressure indicator to a safe 0 25 inch pressure The safe pressure and timer running LEDs should be on the alarm active LED should turn off Check for a 0 10 to 0 15 inch trip point by slowly stroking the indicator from 0 10 to 0 25 inch readings The safe pressure alarm active and timer running LEDs should turn on and off when the indicator reads between 0 10 and 0 15 inches 10 Having ensured that the safe pressureand timer running LEDs are functioning properly start up procedures located on page 24 may now be followed to step through a complete start up cycle ensuring that the system functions normally during all phases of operation 11 Cease testing and remove test equipment flowmeter 12 Connect the inert gas supply directly to the enclosure pressure control regulator Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com 22 Germany 49 621 776 2222 pa info de pepperl fuchs com CLASS VOLUME EXCHANGE TIME CHART MEASURED FLOW REQUIRED EXCHANGE TIME 0 10 SCFM 6 SCFH 40 minutes per cubic foot 0 25 SCFM 15 SCFH 16 minutes per cubic foot 0 50 SCFM 30 SCFH 8 minutes per cubic foot 0 75 SCFM 45 SCFH 5 5 minutes per cubic foot 1 SCFM 60 SCFH 2 SCFM 120 SCFH 3 SC
42. n 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 for 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 512166 Drawing No 129 0208a 03 09 Part No 512166 Drawing No 129 0208a 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 2001A STD CII Type X
43. nsure 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 Optional Intrinsic Safety Barrier Conduit Systems supplied with optional Intrinsic Safety Barriers ISB will be supplied with clearly labeled isolated conduit entries a solid body wireway with snap cover and plexiglass wiring partitions These accessories provide a fully isolated wiring path to the barrier wiring terminal located on the lower left corner of the EPCU Logic Module All IS wiring must be isolated 1 Choose the location for the enclosure s IS conduit connection s based on the requirements on page 14 Electrical Supply Requirements 2 Drill and deburr enclosure conduit fitting holes in the protected enclosure Mount the fittings 3 Determine appropriate route for the IS conduit 4 Measure cut and thread conduit check conduit fit to ensure 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 Subject to modifications without notice Germany 49 621 776 2222 pa info de pepperl fuchs com 18
44. ntrol unit Enclosure pressure gauge Enclosure pressure control regulator System supply Enclosure supply discharge Protected enclosure Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com J PEPPERL FUCHS PROTECTING YOUR PROCESS 17 Germany 49 621 776 2222 pa info de pepperl fuchs com a Conduit Installation EPCU Electrical Conduit Unplug the four unlabeled conduit entrances located on the sides and bottom of the EPCU enclosure See page 15 EPCU Layout for conduit entrance layout The installer must mount the Type 7 drain fitting supplied with the system except for PM configurations in one of the bottom conduit entrances of the EPCU or utilize drain seals on all conduit connected to the bottom two 2 conduit entrances of the EPCU Following the instructions listed below install all conduit fittings and seals or drain seals if utilized between the EPCU alarm system if utilized and the protected enclosure s Plug all remaining EPCU conduit entrances 1 Choose the location for the enclosure s electrical conduit connection s based on the requirements on page 14 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 enclosure and alarm signal conduit 4 Measure cut and thread conduit check conduit fit to i
45. ny 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 conflict 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 26 Pepperl Fuchs Group USA 1 330 486 0002 Germany 49 621 776 2222 Singapore 65 6779 9091 fa PEPPERL FUCH
46. on 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 System Maintenance Systems Identification amp Application Information Description Model 2001A is an enclosure pressurization or purging system that operates on a supply of compressed 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 In addition the system includes an electrical power control unit EPCU that monitors system operation and controls enclosure power These processes reduce the hazardous classified area rating within the enclosure s in accordance with the NEC NFPA 70 Article 500 NFPA 496 and ISA12 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 bee
47. oncombustible materials such as materials designed to meet or exceed ANSI UL94 ratings of 94 V 0 or 94 5V Subject to modifications without notice 4 Pepperl Fuchs Group USA 1 330 486 0002 Germany 49 621 776 2222 Singapore 65 6779 9091 Adjacent Enclosures 1 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 2 Adjacent purged or pressurized enclosures must be designed to meet all construction requirements above Total Volume Calculation 1 The total volume of all pressurized enclosures devices and wireways must be considered 2 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 2 If the free volume of an internal device exceeds 1 22 in it must be protected 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 c p
48. overed 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 25 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 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 d
49. r Electrical power control docui unit SuDpIY outlet Flame arrestors Mounting plate HELPFUL HINT Pneumatic connections are bolded Subject to modifications without notice Copyright Pepperl Fuchs 12 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 Tubing Connection Points Part No 512166 Drawing No 129 0208a 03 09 Part No 512166 Drawing No 129 0208a 03 09 L Tubing Installation HELPFUL HINTS All work must be performed by technicians qualified in pneumatic tubing and electrical conduit installation 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 that protects it from damage and corrosion Tubing LH RH TM BM WM amp FM Configurations System supply connections 1 Select or install a protective gas supply header tap fitted with the proper tube size fitting and located within twenty 20 feet of the enclosure protection system 2 If a service valve is placed between the protective gas supply header and the enclosure protection system it must be installed in close proximity of the protected enclosure and be labeled in accordance with NFPA 496 3 Select the appropriate fittings r
50. r one 1 minute Readjust nclosure pressure control regulator if required 8 If safe 1 0 inch pressure is lost the EPCU will deenergize enclosure power and activate alarm system if utilized Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com fF PEPPERL FUCHS PROTECTING YOUR PROCESS Part No 512166 Drawing No 129 0208a 03 09 Part No 512166 Drawing No 129 0208a 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
51. r 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 POWE OSURE HAS BEEN OPENED UNTIL ENCLOSURE HA BEEN PURGED IN ACCORDANCE WITH THE PURGE SYSTEM START UP INSTRUCTION os T T p i APERA RE i AREA CLASSIFICATION PRESSURIZATION TY SHALL NOT BE RESTORED AFTER ENCI Enclosure warning nameplate Class WARNING PRESSURIZED hep E THIS ENCLOSURE SHALL NOT BE OPENED UNLESS THE AREA IS KNOWN TO BE FREE OF FLAMMABLE MATERIALS OR UNLESS ALL DEVICES HAVE BEEN DE ENEN POWER SHALL NOT BE RESTORED AFTER ENCLOSURE HAS BEEN OPENED UNTIL parai IBLI DUSTS HAVE BEEN REMOVED AND THE ENCLOSURE RE PRE SSURIZED IN ACi WITH THE PRESSURIZATION SYSTEM START UP INSTRUCTIONS TEMPERATURE CODE RO AN 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 IS KNOWN TO BE NONHAZARDOUS OF UNLESS ENCLOSURE POWER HAS BEE
52. re and tighten WARNING NOTICE THIS VENT MUST BE pee RIOR TO OPERATION O PROTECTION SYSTE Mi SE BLUNT OBJECT To PROC EPV 1 SA 00 Vertical Mount WARNING NOTICE THIS VENT MUST BE TESTE PRIOR TO OPERATION OF TH PROTECTION SYSTEM SE BLUNT OBJECT TO PRO MLA EPV 1 SA 90 Side Mount Subject to modifications without notice 8 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 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 operato
53. rm signal Enclosure wiring methods amp connections Electrical Power Control Unit General layout amp conduit connection points EPCU Power Rating Power rating nameplate Assembled electronics Electrical amp Pneumatic Diagrams LH RH TM BM WM FM amp PM configurations Conduit Installation EPCU electrical conduit Optional intrinsic safety Barrier conduit and EPCU conduit connection parts Power Modules amp Wiring Diagram EPCU 120 220 VAC amp 24 48 VDC power modules Logic Module amp Barrier Wiring Optional ISB wiring requirements amp diagram EPCU power control modes Barriers amp Field Adjustments ISB description amp factory programming LED display indicators Timer functions amp settings Class Set Up Procedure Class purging set up Class II Set Up Procedure Class II Pressurization set up 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 Page 24 Operating Sequence Class purging amp Class II pressurization operation Page 25 Page 26 Troubleshooting Procedures Warranty and Liability Statements Warranty notes General terms limitations Page 27 Customer Notes Page 30 Page 31 Purpose and Description Purpose Pepperl Fuchs Bebco EPS System allows the use of general purpose or nonrated electrical or electronic devices with excepti
54. rotected by other means e g explosion proof enclosures hermetically sealed devices or intrinsic safe circuits Temperature Limitations 1 The enclosure must have no surface area that exceeds 80 percent of the flammable or ignitable substance s auto ignition temperature 2 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 cULys 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 www pepperl fuchs com pa info us pepperl fuchs com pa info de pepperl fuchs com pa info sg pepperl fuchs com fF PEPPERL FUCHS PROTECTING YOUR PROCESS Part No 512166 Drawing No 129 0208a 03 09 Part No 512166 Drawing No 129 0208a 03 09 Bi Cove POLO AEE aeRO ELETE Installation Overview Model 2002 STD CI LH Shown ENCLOSURE PROTECTION A VENT 8 g PROTECTED Eg ENCLOSURE LE 4 ey t ENCLOSURE SUPPLY TUBING
55. th and 20 feet 5 feet 20 feet 10 feet 30 feet T number of bends elbows 10 bends 5 bends 10 bends 5 elbows 5 elbows y TYPICAL MULTIPLE PROTECTED ENCLOSURE CONNECTIONS PRO CINE B GAS SUPPLY ee eee ee E resce 5 tes ee 2 HEADER PROTECTED C ci enclosure SUPPLY ENCLOSURE eddies 1 PROTECTED PROTECTION aoe eee t bes ly ENCLOSURE SYSTEM a ee E T ees REFERENCE L 2 LL 1 en e a ae a M I A ey 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 eee HELPFUL HINTS If flammable gases are lighter than air the inlet connection to each enclosure must enter near a bottom corner The outlet connection for an optional enclosure protection vent or piping to an adjacent protected enclosure must exit near an extreme opposite top corner See diagrams to the left OUTLET Connections for heavier than air gases and vapors If f
56. tion system Do not use the bypass modes without first securing a hot work permit Never leave the system unattended in bypass modes Class Purging Operation With the inert gas supply on RET Timer set properly EPCU power and alarm system energized if utilized 1 Carefully read start up instruction nameplate on system 2 Check operation of the enclosure protection vent model EPV 1 if utilized opening it manually several times See page 22 Helpful Hint 3 Seal protected enclosure s 4 Depress the on off pushbutton NR mode or turn selector switch to the on position CB mode Each LED should illuminate fully for two seconds then all LEDs should turn off except power off solid red and alarm activated flashing red LEDs 5 Turn enclosure pressure control regulator slowly CW to set the enclosure pressure indicator to a safe 0 25 inch pressure The safe pressure and timer running LEDs should be on the alarm active LED should turn off NOTE If the safe pressure or timer running LEDs blink on and off or flicker during this cycle EPCU will reset RET timer 6 Standby until the EPCU completes the timing cycle and energizes enclosure power Safe pressure LED should stay on timer running LED should turn off and power on LED should turn on 7 Ensure the protection system enclosure pressure indicator maintains a safe 0 25 inch pressure for one 1 minute Readjust enclosure pressure control regula
57. tor if required 8 If safe 0 25 inch pressure is lost the EPCU will deenergize enclosure power and activate alarm system if utilized Subject to modifications without notice Pepperl Fuchs Group USA 1 330 486 0002 www pepperl fuchs com pa info us pepperl fuchs com 24 Germany 49 621 776 2222 pa info de pepperl fuchs com Class Il Pressurization Operation With the inert gas supply connected EPCU power energized and alarm system energized if utilized 1 Carefully read start up instruction nameplate on system 2 Check operation of the enclosure protection vent model EPV 1 if utilized opening it manually several times See page 22 Helpful Hint 3 Remove all traces of combustible dust 4 Seal protected enclosure s 5 Depress the on off pushbutton NR mode or turn selector switch to the on position CB mode Each LED should illuminate fully for two seconds then all LEDs should turn off except Power off solid red and alarm activated flashing red LEDs 6 Turn enclosure pressure control regulator slowly CW to set the enclosure pressure indicator to a safe 1 0 inch pressure The safe pressure and power on LEDs should be on the alarm active LED should turn off NOTE If the safe pressure or power on LEDs blink on and off or flicker during this cycle EPCU will reset enclosure power 7 Ensure the protection system enclosure pressure indicator maintains a safe 1 0 inch pressure fo
58. ulator Safe pressure switch Cl Safe pressure switch Cll Series 2000 logic module Ver 2 0 Series 2000 VAC power module Installation amp operation manual Enclosure warning nameplate Cl Enclosure warning nameplate Cll Part supercedes 510023 001000 513235 001027 513315 002000 510356 005200 510357 005205 510279 005000 510304 005020 129 0208 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 oe oe oe a a a oo h Copyright Pepperl Fuchs Singapore 65 6779 9091 pa info sg pepperl fuchs com FJ PEPPERL FUCHS 3 PROTECTING YOUR PROCESS L 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 protection system to determine air consumption and flow during set up Model 2001A System Accessories Optional Enclosure Protection Vents EPV 1 SA 00 Straight w spark arrestor EPV 1 SA 90 Rt angle w spark arrestor Additional Items SMK 2 3 or 10 System mounting 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 Tamperproof regulator w gauge SRM 4000 S
59. witch resistor module NJ P F NAMUR sensor EFC 4 1 4 flush connector EBC 4 1 4 bulkhead connector EPC 10 1 2 pipe connector IS1 Channel A barrier IS2 Channel B barrier IS3 Channel C barrier RP1 Redundant safe pressure switch L Power switch key lock assembly Enclosure amp Device Design Enclosure Design Requirements 1 All windows must be shatterproof and sized as small as possible 2 All NFPA 496 required markings must be placed on or near all enclosure doors and covers 3 The enclosure must withstand an internal pressure of five 5 inches of water without sustaining permanent deformation and resist all corrosive elements in the surrounding atmosphere 4 All lightweight objects in the enclosure such as paper or insulation must be firmly secured 5 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 6 The installation of obstructions or other barriers that block or impede the flow of protective gas must be avoided 7 The creation of air pockets or other areas that trap flammable gases within the enclosure or devices must be avoided 8 The enclosure should be located in an area where impact hazards are minimal 9 If the enclosure is nonmetallic and contains equipment that utilizes or switches power loads greater than 2500 VA it must be constructed from substantially n

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