Pepperl+Fuchs RAPID EXCHANGE 1002 Series User manual

MODEL 1002
TYPE Y OR Z
RAPID EXCHANGE®PURGING SYSTEM
INSTALLATION & OPERATION MANUAL
CLASS I APPLICATIONS
15 Cubic Feet Maximum
WPS & WPSA Style
(With Pressure Switch)
LPS Style
(Less Pressure Switch)
CSA Approval applies to
WPS Style EXP Pressure Switch Only
ISC * 877-602-0010 * www.iscenclosurecooling.com

BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
Telephone [phone] • FAX [phone] • E-Mail: [email protected]
2
Page 13 Tubing Installation
LH, RH, TM, BM, WM, FM & PM Tubing
Configurations
Page 14 Tubing Connection Diagrams
LH, RH, TM, BM, WM, FM, & PM Configuration
Connection Points, Pneumatic Diagram
Page 15 Electrical Supply Requirements
Wiring Requirements, Enclosure Power & Alarm
Signal,EnclosureWiringMethods&Connections
Page 16 Conduit Installation
Electrical & WPS Style Conduit and Connection
Parts
Page 17 Set-Up Procedure
Class I Purging Set-up
Page 18 Operating Sequence
Class I Purging Operation
Page 19 Trouble - Shooting Procedures
Trouble-shooting Chart
Page 20 Warranty and Liability Statement
Warranty Notes, General Terms, Limitations
Page 21 System Maintenance
Regular Maintenance, Long Term Maintenance,
Maintenance Schedule
Page 22 Customer Notes
Page 23 Customer Notes
Page 24 Systems Identification & Application
Information
Important Notes
One (1) permanent file copy and one (1) operations copy of
thisManualmustbestudiedandretainedbytheoperatorof
this System. User’s Agents are responsible for transferring
this Manual to the user, prior to start-up.
Thecontentsofthismanualhavebeenarrangedtoallowthe
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
thereforeacknowledgestheuseofNFPA496asaguideline,
thatwehaveenhancedcertainNFPArequirementsandthat
additional information has been compiled to complete this
document. TheManualisintendedasacompleteguideand
must be considered, unless specifically stated otherwise,
thatalldirectivescontainedhereinarerequirementsforsafe,
practical and efficient use of this product.
This System is not intended for use to protect enclosures or
devices which 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.
Table of Contents
Page 2 System Purpose and Description
Purpose,SystemDescription,ImportantNotes
Page 3 Identifying Your System
Defines specific features of the system
Page 4 General Information
System & Material Specifications, Spare Parts,
Tools & Test Equipment, System Accessories
Page 5 Enclosure and Device Design
Design Requirements, Adjacent Enclosures,
Device Ventilation, Temperature Limitations
Page 6 Installation Overview
Installation Diagram
Page 7 Getting Started
Establishing Connection Sizes, Determining
Enclosure Inlet & Outlet Connection Locations
Page 8 System Mounting
LH, RH, TM, BM & WM Configurations,
FM & PM Configurations
Page 9 Hardware Mounting
Required Enclosure Protection Vent, Warning
Nameplates
Page 10 Mounting Plate Dimensions
Mounting Plate Dimension Diagrams
Page 11 Mounting Plate Dimensions (cont.)
Mounting Plate Dimension Diagrams
Page 12 Pneumatic Tubing Requirements
Protective Gas Supply Requirements,
Pneumatic Connection Requirements
Purpose
Pepperl+Fuchs' Bebco EPS System’s purpose is to allow
theuseofgeneralpurposeornon-ratedelectricalorelectronic
devices,withexceptiontodeviceswhichproduceexcessive
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 1002 is a Rapid Exchange®purging system which
operates on a supply of compressed instrument air or inert
gas. It is designed to regulate and monitor pressure within
one or more sealed (protected) enclosures, in order to
rapidly remove and prevent flammable vapor accumulation
withintheenclosure(s). Thesystemisdesignedtoaccomplish
fourairexchangesandmaintaina"safe"(0.25")pressureon
one or more enclosures not exceeding a total volume of
fifteen cubic feet. An EPV-2 Enclosure Protection Vent is
required for proper operation. This process reduces the
hazardous (classified) area rating within the enclosure(s), in
accordancewiththeNEC-NFPA70,Article 500,NFPA496
and ISA ds12.4.
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
Telephone [phone] • FAX [phone] • E-Mail: [email protected]
3
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.
To assist you through the installation and operation of your pressurization / purge system, Pepperl+Fuchs, Inc. has
provided the following information boxes throughout this manual. This information is intended to clarify certain
differences between the model styles and configurations and to warn the user / installer of potential dangers of electrical
shock or enclosure over pressurization.
Model 1002-LPS-CI Type Y or Z
15 CUBIC FEET MAXIMUM ENCLOSURE VOLUME
REDUCES INTERNAL AREA CLASSIFICATION AS FOLLOWS:
TYPE Y: CL. I, DIV. 2, GR. A-D / ZONE 2, GR. IIC TO DIV. 2 / ZONE 2
TYPE Z: CL. I, DIV. 2, GR. A-D / ZONE 2, GR. IIC TO NONHAZARDOUS
PURGE CONTROL FOR USE IN HAZARDOUS LOCATIONS. INACCORDANCEWITHTHENATIONAL FIRE
PROTECTIONASSOCIATION STANDARD FOR PURGED AND PRESSURIZED ENCLOSURES FOR
ELECTRICAL EQUIPMENT NFPA 496- 1993 7L93
APPROVED BY FACTORY MUTUAL AS ASSOCIATED TYPE Y & Z PRESSURIZATION CONTROL
EQUIPMENT FOR USE IN HAZARDOUS LOCATIONS. REDUCES THE INTERNAL AREA
OF A CONNECTED ENCLOSURE IN ACCORDANCE WITH DRAWING NUMBER 1002-IOM.
MAXIMUM
TOTAL
ENCLOSURE
VOLUME
Defines total
protected
enclosure(s)
volume capacity for
this particular
system. Total
enclosure(s)
volume must be
calculated without
regard for
consumed volume
SERIES
MODEL NUMBER
SYSTEM CLASS RATING
Defines Class rating for Protection
System’s method of use
CI - Class I Purging system
Identifying Your System
HELPFUL HINT WARNING
SYSTEM STYLE
Systems are available in three styles, with or without
an explosion proof differential pressure switch, used
to detect loss of “safe” enclosure pressure
LPS - Less Pressure Switch
WPS - With Pressure Switch Groups C & D
WPSA - With Pressure Switch Groups A - D
SYSTEM TYPE
Type Z
Reduces the internal
enclosure area
Division rating from
Division 2 to
nonhazardous
Type Y
Reduces the internal
enclosure area
Division rating from
Division 1 to
Division 2
AREA
CLASSIFICATION
Defines the area
classification for
which the system is
suitable for operation
IMPORTANT NOTE
APPROVAL
MARKINGS &
DEFINITIONS
Identifies the current
third party approvals
for this system
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
Telephone [phone] • FAX [phone] • E-Mail: [email protected]
4
System Specifications
System Dimensions: See Pages 10 & 11
Shipping Weight (Lbs.): LPS - 10 / WPS - 15
Operating Temperature Range: -20°F - 120°F
Supply Pressure Range: 80 - 120 PSI max.
Capacity & Filtration: 1.5 Oz. @ 20 Microns
Supply Requirements: Clean Air or Inert Gas
Safe Pressure Setpoint: 0.25"
Safe Pressure Flowrate: * 0.1 - 3.5 SCFH / Cu Ft
Exchange Pressure: * 3" - 5"
Exchange Flowrate: ** 4 SCFM / 240 SCFH
Exchange Time: 1 Minute / Cubic Ft.
System Supply Port: 1/4" FPT
Enclosure Supply Fitting: 1/4" Tube Fitting
Enclosure Reference Fitting: 1/4" Tube Fitting
Switch Setting (WPS & WPSA Only): 0.15" ±0.02"
WPS & WPSA Pressure Switch Wiring: 1/2" FPT
Switch Contact Ratings:
WPS Style: 120 VAC, 15 Amps
WPSA Style: *** 120/240 VAC, 10 Amps, 28 - 125 VDC
* Enclosure integrity determines actual flow and pressure
** With regulator set to 60 PSI min. during exchange
*** WPSAstyleswitchrequires120/240VACsupplyvoltage
ExchangeFlowratingisbasedonsafetyfactorsconsidered
after extensive factory testing and does not reflect actual
flow. Flow was measured upstream of System with an
electronic flowmeter on a five cubic feet enclosure. The
Systemwasinstalledwithtubingthatexceededthemaximum
allowable linear length and quantity of bends listed in this
manual for System supply, enclosure supply and enclosure
referenceconnections. TheSystemwastestedinconjunction
with the EPV-2-SA-00 Enclosure Protection Vent, mounted
directly on the test enclosure.
ABS Traceable Certified Exchange Flow Measurements with
System regulator set at 60 psi, ambient temperature of 75°F
100 psi supply pressure: 6.90 scfm / 414.00 scfh
80 psi supply pressure: 6.71 scfm / 402.60 scfh
Material Specifications
Filter Regulator Body: Zinc w/ Enamel Finish
Regulator Handle & Bowl: Polycarbonate
Enclosure Pressure Gauge: Alum. w / Enamel Finish
Rapid Exchange Gauge: Poly Case & Brass Tube
Tube Fittings & Valves: 316 SS Forged Body
Tubing: 316 SS 1/4" .035 Welded
System Nameplates: Silkscreened Lexan®& SS
Fastener Hardware: Aluminum & Stainless Steel
Mounting Plate: 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 Company
Recommended Spare Parts
Qty Description Part # (supercedes)
1 Enclosure Pressure Indicator-CI 510023 (001000)
1 System Filtered Regulator 510057 (002040)
1 Rapid Exchange® Pressure Gauge 510078 (002300)
1 Enclosure Pressure Control Valve Body 510116 (003440)
1 Rapid Exchange® Control Valve Body 510118 (003460)
1 Installation & Operation Manual 129-0196
1 Group C - D Pressure Switch-CI 510044 (001080)
1 Group A - D Pressure Switch-CI 510045 (001085)
1 Enclosure Warning Nameplate-CI 513008 (EWN-1)
Please call and reference the above part number for
current spare parts pricing. Immediate pricing is available
to all confirmed customers.
Installation Tools & Testing Equipment
1/2" chuck drill
Complete set of drill bits
3/4" conduit knockout punch or 1.125" hole saw
Complete set of tubing, conduit bending, instrument fitting
and electrical craftsman hand tools
0-10"differentialpressureindicatorormanometer(connected
to the protected enclosure to measure maximum pressure)
Model 1002 System Accessories
Enclosure Protection Vents
ONE REQUIRED WITH EACH SYSTEM
EPV-2-SA-00 Straight w/ Spark Arrestor
EPV-2-SA-90 Rt Angle w/ Spark Arrestor
Additional Items
SMK-2 or -8 System Mounting Kit
EPSK-1 Class I, Group C - D Pressure Switch Kit
EPSK-1A Class I, Group A - D Pressure Switch Kit
GPSK-1 Class I, 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
PIAD Purgeable Instrument Access Door
General Information
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
Telephone [phone] • FAX [phone] • E-Mail: [email protected]
5
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. Theenclosuremustwithstandaninternalpressureoften
(10) inches of water without sustaining permanent
deformation and resist all corrosive elements in the
surrounding atmosphere.
4. Alllightweightobjectsintheenclosure,suchaspaperor
insulation, must be firmly secured.
5. The enclosure should be constructed from materials
such as metal or anti-static 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 which
block or impede the flow of protective gas must be
avoided.
7. The creation of air pockets or other areas which 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
whichutilizesorswitchespowerloadsgreaterthan2500
VA, it must be constructed from substantially
noncombustible materials, such as materials designed
tomeetorexceedANSI/UL94ratingsof94V-0or945V.
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.
Enclosure & Device Design
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
calculatedwithoutconsiderationofinternallyconsumed
space.
Device Ventilation
1. Enclosed devices within the protected enclosure which
do not exceed 1.22 cubic inches of free volume do not
require ventilation to the protected enclosure.
2. If the free volume of an internal device exceeds 1.22
cubicinchesitmustbeprotectedbyoneofthefollowing
means:
a) ventilated on the top and bottom sides with one (1)
square inch of opening for each four hundred (400)
cubicinchesofvolume within theinternalprotected
enclosure,ataminimumdiameterofone (1) quarter
inch;
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. Theenclosuremusthavenosurfaceareawhichexceeds
80 percent of the flammable or ignitable substance’s
auto-ignition temperature.
2. Internaldeviceswhichexceedthistemperaturemustbe
protected by one of the following manners.
a) ThedeviceisenclosedinachamberwhichisUL,FM
or CSA listed as a hermetically sealed device which
prohibits the entrance of 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 only be accessed 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.
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
Telephone [phone] • FAX [phone] • E-Mail: [email protected]
6
Installation Overview
Typical Left Hand Configuration Installation Diagram
Model 1002-WPS-LH Shown
PROTECTIVE
GAS SUPPLY
SYSTEM
SUPPLY TUBING
ELECTRICAL ALARM WIRING
CONDUIT & SEAL
SERVICE
VALVE
SYSTEM
SUPPLY FITTING
ENCLOSURE
PROTECTION
SYSTEM
SYSTEM
MOUNTING
BOLT
ENCLOSURE
SUPPLY TUBING
ENCLOSURE
PROTECTION
VENT
(required)
PROTECTED
ENCLOSURE
ENCLOSURE
CONNECTION
FITTINGS
ENCLOSURE
REFERENCE
TUBING
ENCLOSURE
WARNING
NAMEPLATE
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
Telephone [phone] • FAX [phone] • E-Mail: [email protected]
7
Getting Started
Establishing Connection Sizes, Lengths & Bends
TYPICAL SINGLE PROTECTED ENCLOSURE CONNECTIONS
PROTECTED
ENCLOSURE
C
B
ENCLOSURE PROTECTION VENT
(Required)
E
SUPPLY
REFERENCE
1/2"
PROTECTIVE
GAS SUPPLY
HEADER
ENCLOSURE
PROTECTION
SYSTEM
Maximum Tubing / Pipe Length and
Maximum Number of Bends / Elbows
1/4" O.D. Tubing
Fully Reamed
20 Feet
10 Bends
1/4" O.D. Tubing
Fully Reamed
Description
Tubing or Pipe Diameter
Enclosure
Supply
System
Supply Tubing Enclosure
Reference
1/4" O.D. Tubing
Fully Reamed
5 Feet
5 Bends 20 Feet 10 Bends
Multi - Enclosure
Connections
3/4" I.D. Pipe
Fully Reamed
10 Feet
5 Elbows
Optional Remote
Venting
3/4" I.D. Pipe
Fully Reamed
30 Feet
5 Elbows
ABE
D
C
INLET
ENCLOSURE
PROTECTION
SYSTEM
PROTECTED
ENCLOSURE PROTECTED
ENCLOSURE
D
SUPPLY
REFERENCE
INLET
Connections for Heavier than
Air Gases and Vapors
OUTLET
OUTLET
B
TYPICAL MULTIPLE PROTECTED ENCLOSURE CONNECTIONS
1/2"
PROTECTIVE
GAS SUPPLY
HEADER
A
A
D
C
Connections for Lighter than
Air Gases and Vapors
HELPFUL HINTS
If flammable gases are lighter than air, the inlet
connection to each enclosure must enter near a
bottomcorner. Theoutletconnection,fortherequired
enclosure protection vent or piping to an adjacent
protected enclosure, must exit near an extreme
opposite top corner.
If flammable 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.
Determining Enclosure Inlet & Outlet Connection Locations
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.
PROTECTED
ENCLOSURE
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
Telephone [phone] • FAX [phone] • E-Mail: [email protected]
8
System Mounting
IMPORTANT NOTES
Mounting LH, RH, TM, BM & WM Configurations
Mounting FM & PM Configurations
HELPFUL HINTS
Determinethemountingconfigurationofyoursystem
using the diagrams on pages 10 & 11.
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 purge systems are factory tested and
calibrated, we strongly suggest a bench test of basic
functions prior to installation.
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(doorsandcovers) 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 & BM configurations are also suitable for
2" schedule 40 pipe mounting.
1. Transfer panel cutout pattern to the intended surface.
2. Checkforobstructionswhichcouldprohibitbolt fastening
or system pneumatic connections.
3. Cut panel cutout pattern on the intended surface.
4. Deburr all cutout surfaces.
5. Securesystemtoenclosure using SMK-8, orequivalent
-eight(8)1/4" x3/4"stainlesssteelnuts,bolts, mounting
clips and lock washers.
Surface mounting Systems
1 . Transfer hole pattern of System mounting plate to
intended surface.
2. Checkforobstructionshinderingboltfastening,drilland
ream the mounting holes before mounting the system.
3. Secure the system to the enclosure, or other mounting
surface, using one (1) SMK-2 mounting kit or equivalent
- four (4) 3/8" x 3/4" stainless steel bolts, nuts and lock
washers.
Pipe mounting Systems
1. Locate 2" schedule 40 pipe, (vertical for LH & RH,
horizontal for TM & BM) within five (5) feet of protected
enclosure.
2. Ensure system is mounted in a true vertical position,
securethe systemtopipe,usingone(1)PMK-2mounting
kit or equivalent - two (2) 3/8" x 2" stainless steel “U”
bolts, nuts and lock washers.
Typical Examples of Surface, Pipe, Panel & Frame Mounted Systems
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 the SMK-8 mounting
kit. This design feature eliminates the need to drill the system mounting bolt holes in the protected enclosure.
PM configurations do not require and do not include a venturi orifice on the enclosure reference connection.
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.
Typical Surface Mounted System
(Model 1002-LPS-CI-Z-LH shown) Typical Pipe Mounted System (Model 1002-LPS-CI-Z-LH shown) Typical Panel/Frame Mounted System (Model 1002-LPS-CI-Z-PM shown)
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
Telephone [phone] • FAX [phone] • E-Mail: [email protected]
9
Hardware Mounting
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
manilaenvelopetapedtothemountingflangeofthesystem.
Additional EWN’s are available from Pepperl+Fuchs.
All EWNs provide labeled spaces allowing the customer to
marktheprotectedenclosurewith: 1)aTCode(temperature
identification number), 2) Class, Group and Division of
surroundingarea,and3)NFPApressurizationTypeX,YorZ,
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.
TheETWwarnstheoperator todeenergizeallequipmentfor
aspecifiedlengthoftime,allowingtheprotectedequipment
to cool before opening the protected enclosure. The length
of time required is determined by the customer and can be
factory or field engraved.
AllEWNsandETWsarefurnishedwithanadhesiveback,but
shouldalsoberivetedorscrewedtotheprotectedenclosure.
Required Enclosure Protection Vent
Allconfigurationsmustbemountedinatrueverticalposition.
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.;
-00verticalmountor-90sidemount.(seephotosbelow)
2. Determine vent location and layout vent mounting hole
on the protected enclosure. (as determined on page 7,
“Getting Started”)
3. Usinga1.125" hole saw or 3/4" 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.TheO-ringmustbeontheoutsideoftheprotected
enclosure.
5. Reinstallthehubmountingnuttothemountinghubfrom
inside the protected enclosure and tighten.
EPV - 2 - SA - 00
Vertical Mount
EPV - 2 - SA - 90
Side Mount Enclosure Temperature Warning Nameplate
Enclosure Warning Nameplate - Class II
Enclosure Warning Nameplate - Class I
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
Telephone [phone] • FAX [phone] • E-Mail: [email protected]
10
16"
10"
4.25"
7.5"
15.3125"
.6875"
.375" O.D.
TYP. 4
3.5625"
Mounting Plate Dimensions
1002-LPS-LH
(Left Hand Configuration)
Model 1002
1002-WPS & WPSA-LH
(Left Hand Configuration)
1002-WPS & WPSA-RH
(Right Hand Configuration) 1002-LPS-RH
(Right Hand Configuration)
1002-LPS-TM
(Top Mount Configuration) 1002-WPS & WPSA-TM
(Top Mount Configuration)
4.25"
6"
.6875"
3.5625"
9.3125"
10"
11"
.375" O.D.
TYP. 4
15"
11"
4.25"
7.5"
.6875"
3.5625"
14.3125"
.375" O.D.
TYP. 4
15"
11"
4.25"
7.5"
.6875"
3.5625"
14.3125"
.375" O.D.
TYP. 4
10"
11"
4.25"
6"
.6875"
3.5625"
9.3125"
.375" O.D.
TYP. 4
10"
11"
6"
10.3125"
.6875"
3.5625"
4.25"
.375" O.D.
TYP. 4
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
Telephone [phone] • FAX [phone] • E-Mail: [email protected]
11
Mounting Plate Dimensions (cont.)
1002-WPS & WPSA-WM
(Wall Mount Configuration)
Model 1002
1002-LPS-BM
(Bottom Mount Configuration)
1002-WPS & WPSA-BM
(Bottom Mount Configuration)
3.5625"
10"
11"
6"
4.25"
.6875"
10.3125" .375" O.D.
TYP. 4
15"
11"
13"
6"
9.25"
17"
Panel Cutout
12"
Panel Cutout
16"
13"
3.25" 3.25"
.25" O.D.
TYP. 8
1002-WPS & WPSA-FM
(Frame Mount Configuration)
Panel Cutout
12"
12"
13"
Panel Cutout
11"
3.5" 1.5"
.25" O.D.
TYP. 8
1002-LPS-FM & 1002-LPS-PM
(Frame & Panel Mount Configuration)
4.25"
7.5"
15.3125"
.5"
.6875"
16"
10"
.375" O.D.
TYP. 4
3.5625"
1002-LPS-WM
(Wall Mount Configuration)
9"
2" 1"
.375" O.D.
TYP. 4
6"
8"
7.75"
10"
11"
TYPICAL -WM
MOUNTING FLANGE
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
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12
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
mustcontainnomorethantraceamountsofflammablegas,
vapor or dust.
Theprotectivegassupplycompressorintakemustoriginate
inanonhazardous location. Suctionductpassing througha
hazardous location and the protection system tubing and
piping must be fabricated from noncombustible materials
suitableforprevailinghazardsandenvironmentalconditions.
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. Localcompressorsandgascylindersshouldnotbe
used before consulting with Pepperl+Fuchs.
The protective gas supply to the protection system must be
regulated from 120 psi maximum to 80 psi minimum.
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.
One (1) similar fitting which will connect the inert gas
supplytubingtotheinertgassupplyheader 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) Mdel 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 1/4" O.D., .035" wall thickness, welded or
seamless stainless steel tubing.
5. Formultipleenclosureconnections,two(2)EPC-123/4"
Pipe Mounting Hubs or equivalent and 3/4" 150# rated
pipe couplings & unions per interconnection.
One(1)lot150#rating3/4"galvanizedoraluminumpipe
and fittings, fully reamed and unrestricted.
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 SUPPLY FITTINGS
SC-4 NC-4
ENCLOSURE SUPPLY & REFERENCE FITTINGS
EBC-
4
EFC-
4
EPC-12
SYSTEM ATMOSPHERIC REFERENCE FITTING
PRB-4
MULTIPLE ENCLOSURE CONNECTION FITTING
PM Pneumatic Connection Requirements
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
Telephone [phone] • FAX [phone] • E-Mail: [email protected]
13
Tubing Installation
System Supply Connections
1. Selectorinstallaprotectivegassupplyheadertap,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 section 2-
11.4 of the NFPA 496, 1998 edition.
3. Select the appropriate fittings required to connect the
protectivegassupplytotheprotectionsystemregulator
as determined on page 12, “Pneumatic Connection
Requirements”.
4. Determine appropriate tubing route from the protective
gas supply header to the protection system regulator.
5. Bendtubingusingindustrialgradebenders,checktubing
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 Bulkhead Fittings
1. Select the fittings required to install the System Supply,
System Supply Bulkhead Fitting and Atmospheric
Reference Bulkhead Fitting, (see page 12, “Pneumatic
Tubing Requirements”).
2. Choose location for the system supply bulkhead fitting.
This fitting allows the protective gas supply to pass
throughthewallofaprotectedenclosuretotheprotection
system’s regulator supply inlet connection.
3. Chooselocationfortheatmosphericreferencebulkhead
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.
HELPFUL HINTS
Tubing LH, RH, TM, BM, WM & FM Configurations
Enclosure Supply & Reference Connections
1. Choose location for the enclosure supply connection(s)
basedontherequirementsonpage7,“GettingStarted”.
2. Placetheenclosurereferenceconnectionfittingdirectly
behindtheenclosureprotectionsystemandatleastone
foot away from the enclosure supply and enclosure
protection vent connections, 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 7, “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. Bendtubingusingindustrialgradebenders,checktubing
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.
System Supply & Reference Connections
1. Selectorinstallaprotectivegassupplyheadertap,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 section 2-11.4 of the NFPA 496.
3. Determine appropriate tubing route from the protective
gassupplyheadertothesystemsupplybulkheadfitting.
4. Determine appropriate tubing route from the system
supplybulkheadfittingtotheprotectionsystemregulator.
5. Determineappropriatetubingroutefromtheatmospheric
reference bulkhead fitting to the enclosure pressure
gauge’s reference inlet connection.
6. Bendtubingusingindustrialgradebenders,checktubing
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’sspecifications. Securetubingasrequired.
Tubing PM Configurations
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 which will protect it from damage and corrosion.
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
Telephone [phone] • FAX [phone] • E-Mail: [email protected]
14
Tubing Connection Diagrams
LH, RH, TM, BM, & FM Configuration Connection Points & Pneumatic Diagram
Rapid
Exchange®
Control
Valve
Regulator
System
Supply
Inlet
Enclosure
Supply
Outlet
Enclosure
Pressure
Gauge
Enclosure
Reference
Inlet
Venturi
Orifice
Enclosure
Pressure
Control
Valve
Mounting
Plate
PM Configuration Connection Points & Pneumatic Diagram
LPS Style
Enclosure
Pressure
Gauge
Atmospheric
Reference
Inlet
Enclosure
Pressure
Control
Valve
Mounting
Plate
Required Enclosure
Protection Vent
Protected Enclosure
Protected Enclosure
HELPFUL HINT
Rapid
Exchange®
Control
Valve
Regulator
System
Supply
Inlet
Pneumatic Connections
are bolded.
Inlet
System
Supply
Inlet System Supply
Bulkhead
Atmospheric
Reference
Bulkhead
Enclosure
Supply Outlet
Enclosure
Pressure Gauge
Optional EXP
Pressure Switch
Sintered
Vent Sintered
Vent
Regulator
Venturi
Orifice
System
Supply
Reference Enclosure Reference
Bulkhead fitting
Enclosure Supply
Bulkhead fitting
Supply
Required Enclosure
Protection Vent
Rapid Exchange®
Pressure Gauge Rapid Exchange®
Control Valve
Enclosure Pressure
Control Valve
Enclosure
Pressure Gauge
Regulator
Rapid Exchange®
Pressure Gauge
Sintered
Vent
Rapid Exchange®
Control Valve
Enclosure Pressure
Control Valve
WPS & WPSA Style
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
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15
Electrical Supply Requirements
Explosion
Proof Device
Typical Enclosure Wiring Methods
Protected enclosures must be wired similar to explosion
proofenclosures,inaccordance withArticle501-504ofthe
1993 National Electric Code - NFPA 70.
Singleconductorwiringmustbeplacedinrigidmetalconduit,
seal-flex conduit or other mediums approved for use in the
hazardous location surrounding the protected enclosure.
Although the 1998 edition of NFPA 496 does not require
conduitsealsonpressurizedenclosures in adivision2area,
Pepperl+Fuchs strongly recommends the use of a conduit
sealasthemost practical way to prevent excessive leakage
through conduit connections.
Whileexplosionproofenclosuresrequireconduitsealsonall
cable entries, in accordance with NFPA 70, Sections 501-
5, protected enclosure cable entries can be sealed in
accordance with Section 501-5 which permits the use of
compressionglandfittingsorothersealedcableentryfittings,
as opposed to approved conduit seals, if the wiring method
is otherwise suitable for the hazardous location.
Inconclusion,therearetwoprimarygoals. First,theinstaller
shouldensureallassociatedwiringandcableisprotectedby
pressurization or other means, such as explosion proof
conduit or intrinsic safety barriers. Secondly, the installer
mustensureallassociatedconduitandwirewaysaresealed
to conserve protective gas, unless they are used to supply
protective gas to other enclosures or devices.
Typical Enclosure Wiring Connections
Seal
Intrinsically
Safe Or Fiber
Optic Device
Adjacent
Pressurized
Device
Independently
Pressurized
Device
Intrinsically
Safe Or Fiber
Optic Device
Seal
Conduit
Conduit
Conduit
General Wiring Requirements
WARNING
THIS DEVICE CONTAINS ELECTRICAL PARTS WHICH
CAN CAUSE SHOCK OR INJURY
Allelectricalconnections,conduitandfittingsontheprotected
enclosuremustbesuitableforthehazardouslocationinwhich
they are installed. In addition, all conduit and wire must be
installedinaccordancewithNECarticles500-1,500-2or500-
3 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. Thesameconduitcanbeutilizedforbothelectrical
and pneumatic service to an adjacent protected enclosure(s),
provided the conduit is oversized to allow a minimum free
clearanceequaltoorlargerthanthepipesizerequiredbetween
multiple enclosures as stated on page 7, “Getting Started”.
Enclosure Power Requirements
The protected enclosure(s) electrical power source must
originatefromacircuitbreakerorfuseddisconnectsuitablefor
thehazardouslocationinwhichitisinstalled. Theswitchmust
be located within fifty (50) feet of the protected
enclosure(s)andtheprotectionsystemandbeproperlymarked.
Alarm Signal Requirements
The WPSA style pressure switch requires a 120 VAC power
supply in addition to the alarm signal. The WPS and WPSA
Style systems alarm signal may originate from the protected
enclosure if the alarm signal is disconnected by the protected
enclosure’s circuit breaker or fused disconnect as stated in
Enclosure Power Requirements above.
Theprotectedenclosure(s)alarmsignalpowermayalsooriginate
fromoutsideoftheprotectedenclosure. Inthisapplication,the
protectedenclosuremaybeusedasa“wireway”topassalarm
signal wiring from the power source to the alarm device, if the
wiringisisolatedandproperlylabeled. Inaddition,appropriate
conduit seals must be provided outside of the protected
enclosure separately.
IMPORTANT NOTE
NFPA496 requirestheuseofanalarm oranindicator
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
systemsmustbeequippedwiththeabovementioned
protective gas supply alarm. Exception: Systems
utilizing either an EPSK or GPSK enclosure pressure
loss alarm switch accessory will satisfy the above
mentioned NFPA requirement.
Gland
Fitting
Cable
Seal
Pressurized
Raceway
Protected Enclosure
Or Device
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
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16
WPS & WPSA Style Conduit
WPS and WPSA style systems provide electrical contacts
for audible or visual alarm devices that signal a loss of
protectedenclosurepressure. WPSandWPSAstylesystems
arecalibratedto alarmat0.15"forClassIapplications. 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 & WPSA Style
Conduit Connection Parts
Fitting Kits Can Be Factory Furnished
1. For WPS and WPSA Style 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)lot150#rating1/2”galvanizedoraluminumpipe.
Conduit Installation
Electrical Conduit
1. Choosethelocationfortheenclosure’selectricalconduit
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. Determineappropriate 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
conduitconnectionsmustbesealedforpropertesting
and operation of the Enclosure Protection System.
Therefore, the use of temporary seals such as duct
seal or masking tape for bench or shop testing, prior
to final field installation may be used.
LCK “L” Fitting Conduit Kit
TCK “T” Fitting Conduit Kit
WPS Style EXP Pressure Switch
With Cover Removed
Switch
Body
SetPoint
Calibration
Screw
Grounding
Screw
1/2"
Conduit
Port
Electrical
Switch
Contacts
Low Port
Sintered
Vent
High Port
Tube
Fitting
WPSA Style EXP Pressure Switch
With Cover Removed
Switch
Body
SetPoint
Calibration
Screw
Grounding
Screw
1/2"
Conduit
Port
Low Port
Sintered
Vent
120 VAC
Power &
Electrical
Switch
Contacts
High Port
Tube
Fitting
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
Telephone [phone] • FAX [phone] • E-Mail: [email protected]
17
Set-up Procedure
Pepperl+Fuchs Rapid Exchange Purging Systems are
designed to provide a pre-calibrated and certified volume
exchange rate. With the Rapid Exchange® pressure gauge
set at 60 psi minimum, the model 1002 will accomplish the
required volume exchanges at a rate of ONE MINUTE PER
CUBIC FOOT of enclosure volume.
NOTE: The volume exchange rate is based on a four (4)
enclosurevolumeexchange. Multiplytherequiredexchange
time by 2.5 for applications requiring a ten (10) volume
exchange (motors).
Regardless of enclosure volume or system flow rate, it is
required that operators withhold power to the enclosure
whileinducingtheClassIenclosurevolumeexchange,forat
least five (5) minutes. Normal exchange times should be
doubled if large obstructions block inert gas flow.
TheStart-UpInstructionNameplateExchangeTimeSlotwill
feature the standard factor for this system "ONE MINUTE
PER CUBIC FOOT", 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,
dependentonhowthesystemwasspecifiedandpurchased.
Fieldmodificationofthisnameplate, to showadirectfactor,
isacceptableasnotedaboveifthemethodusedtomarkthe
nameplatedoesnotdefacetheinstructionslisted. Materials
used for the marking must be indelible and withstand
prevailing environmental conditions.
Class I Purging Set-up
HELPFUL HINTS
1. Close the Enclosure Pressure and Rapid Exchange®
Control Valves fully by turning clockwise (CW).
2. Connect the inert gas supply to the System Supply Inlet
and set the Rapid Exchange® Pressure Gauge to 60 psi.
3. Temporarilyconnecta0-10inchwatercolumnpressure
gauge or manometer to the protected enclosure.
4. CheckoperationofEnclosureProtectionVentasdetailed
above. (see "Helpful Hint")
5. Sealenclosure(s)andadjustEnclosurePressureControl
Valveby opening slowly counterclockwise (CCW) to set
a “Safe” pressure on the Enclosure Pressure Gauge.
NOTE: If pressure setting is difficult to stabilize or set,
(see page 19, “Trouble-Shooting Procedures”).
6. Open Rapid Exchange® Control Valve fully by turning
90°CCW and quickly ensure the Enclosure Protection
Vent opens. Note: The Enclosure Pressure Gauge
should move quickly off scale to the right, this is normal
for all Rapid Exchange® purging systems.
7. Readjusttheregulatorto60psiminimum,whileinducing
Rapid Exchange®, until the test gauge reads
approximately 2 inches of pressure and does not
fluctuate. (insufficient enclosure pressure will cause the
EnclosureProtectionVentto"shuttle") DONOTexceed
10 inches of pressure within the protected enclosure.
8. 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.
9. Cease testing and remove test equipment.
IMPORTANT NOTE
Operatorsmustsecurewristorstopwatchtomanually
time Exchange Cycle for all applications.
Theterm “Safe”pressureforpurposesofthismanual
is defined as a minimum .25 inch of water column
pressure.
Regulator may be in the locked position upon arrival.
To adjust regulator, pull handle to outward position.
Totestthevent’soperation,gentlyprodtheventflapper
open with a soft pointed object, ( example: eraser end
ofapencil)ensuringthattheventvalveworksfreely. On
vertically configured vents, this can be accomplished
fromwithintheprotectedenclosure.Side mounted-90
configuredventscanbetestedbyremovingtheconduit
plug at the bottom of the mounting tee. Multiple
operations require only one test per day if enclosure is
not opened or left unattended.
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
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18
Operating Sequence
Model
Identification
Nameplate
Model 1002-LPS
Front View
Model 1002-WPS & WPSA
Front View
With the inert gas supply connected, enclosure power
deenergized and alarm system energized (if utilized).
1. CarefullyreadStart-UpInstructionNameplateonsystem.
2. CheckoperationoftheEnclosureProtectionVent(Model
EPV-2),openingitmanuallyseveraltimes,(seepage17,
“Helpful Hint”).
3. Seal protected enclosure(s).
4. Open Enclosure Pressure Control Valve, by turning
CCW, to set Enclosure Pressure Gauge at “Safe”
pressure, the Pressure Loss Alarm Switch should then
activate to silence the alarm system (if utilized).
5. EnsuretheProtectionSystemEnclosurePressureGauge
maintains a “Safe” pressure for one (1) minute.
Enclosure
Pressure
Control
Valve
EXP Pressure
Loss Alarm
Switch
Enclosure
Pressure
Gauge
Class I Purging Operation
WARNING
Do not exceed "Safe" pressure with the Enclosure Pressure Control Valve.
Operators must follow step-by-step sequence of the Start-Up Instructions Nameplate on the Protection System.
6. Open Rapid Exchange® Control Valve fully by turning
90°CCW and quickly ensure the Enclosure Protection
Vent opens. Note: The Enclosure Pressure Gauge
should move quickly off scale to the right, this is normal
for all Rapid Exchange® purging systems.
7. StandbyfortheexchangetimeasspecifiedontheStart-
Up Instruction Nameplate( five minutes minimum), then
close the Rapid Exchange® Control Valve fully.
8. Wait for the Enclosure Pressure Gauge to return to a
"Safe"pressureandenergizetheprotectedenclosure(s)
power via the local disconnect switch.
9. Ensure the Enclosure Pressure Indicator maintains a
“Safe” pressure before leaving system unattended.
Rapid
Exchange®
Pressure
Gauge
Rapid
Exchange®
Control
Valve
Start - Up
Instruction
Nameplate
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BEBCO EPS
Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
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19
Problem or Fault
Enclosure pressure control valve will
not hold a "Safe" .25 inch pressure.
Enclosure pressure gauge reading is
difficult to stabilize.
Enclosure pressure loss alarm switch
does not appear to be operating.
Problems persists, or if the system
does not appear to be operating
properly.
Trouble - Shooting Procedures
Possible Causes
Leakage around gasketing, covers,
seams,pipingandtubingconnections,
conduit connections and electrical
conduit seals of the enclosure.
Insufficient enclosure leakage or
openingoftheventuriorificeiscrimped
to small.
Pressure switch is out of calibration.
This section covers the most common problems documented with these systems. Any problems not covered in this
sectionshouldbeaddresseddirectlytoourfactory. Pleaseaddressall service needs to Pepperl+Fuchs, Inc. -Customer
ServiceDepartmentat(330)486-0002.
Corrective Action
Tighten enclosure latches: Where
tighteningisnotfeasible,andgasketing
materials are not practical, holes or
gaps can be closed with silicone
sealant applied from inside the
protected enclosure.
Removetheorifice,cutoffthecrimped
end and ream the tube, then recrimp
andreinstallthetubetonoteeffect.As
tube is shortened, reamed, and
recrimped, sensitivity decreases,
allowingeasieradjustmentofsetpoint
on the enclosure pressure gauge.
Calibrate by slowly adjusting
counterclockwise to decrease the
setpoint, and clockwise to raise the
setpoint. (Do not attempt to calibrate
the switch until all efforts to make the
switch respond properly have failed)
Verify 120 VAC has been applied to
powercontactsofWPSAstylesystem.
ContactPepperl+FuchsApplications/
Customer Service Department at
[phone]formoreinformation.
Pressure switchhasnotbeenenergized
(WPSA style systems only)
Persisting problems.
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Pepperl+Fuchs®Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.bebcoeps.com
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20
PEPPERL+FUCHS STANDARD 18-MONTH WARRANTY
Subject to the conditions and requirements set forth herein, P+F warrants the products covered by the respective
warranties to be free from defects in material and workmanship under normal and proper usage for the respective time
periods listed above from the date of shipment from P+F (or from an authorized representative or distributor of P+F). In
addition, certain specific terms apply to various warranties.
THESE EXPRESS WARRANTIES ARE IN LIEU OF AND EXCLUDE ALL OTHER REPRESENTATIONS MADE — BOTH
EXPRESS AND IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE, OR THAT THE PRODUCTS ARE FREE OF ANY CLAIM OF ANY THIRD PERSON BY WAY OF
INFRINGEMENT OR THE LIKE, and are also in lieu of and exclude any promise, description, affirmation of fact, sample
model or representation, oral or written, which may be part of an order or made by a representative of P+F or otherwise.
This WARRANTY shall not apply to any product which has been subject to misuse, negligence, or accident, or to any
product which has been modified or repaired, improperly installed, altered or disassembled (except according to P+F’s
written instructions) or any product if the machinery, equipment, or production line to which the product is originally
connected or on which the product is originally installed is abandoned, changed, substituted, moved or replaced or if
the product is removed from such machinery, equipment or production line or other original application.
This WARRANTY is subject to the following conditions:
1) This WARRANTY is limited to the electronic and mechanical performance only, as expressly detailed in the product
specifications and NOT to cosmetic performance.
2) This WARRANTY shall not apply to any cables attached to, or integrated with the product. However, it shall apply to
cables sold separately by P+F.
3) This WARRANTY shall not apply to any products which are stored, or utilized, in harsh environmental or electrical
conditions outside P+F’s written specifications.
4) The WARRANTY is applicable only to products shipped from P+F subsequent to January 1, 1992.
5) All claims under this WARRANTY must be made in writing within thirty (30) days of the date on which the defect is
(or, with reasonable diligence, should have been) discovered.
PRODUCTS TO WHICH STANDARD 18-MONTH WARRANTY APPLIES
Ultrasonic sensors, level controls, photoelectric sensors, read-write ID systems, encoders, counters, signal conditioners,
purge/pressurization systems and all products with electromechanical relays or circuit breakers.
CONSIDER SAFETY AND PROTECTION PRECAUTIONS
P+F takes great care to design and build reliable and dependable products; however, some products can fail eventually.
You must take precautions to design your equipment to prevent property damage and personal injury in the unlikely
event of failure. As a matter of policy, P+F does NOT recommend the installation of electronic controls as the sole
device FOR THE PROTECTION OF PERSONNEL in connection with power driven presses, brakes, shears and similar
equipment and, therefore, the customer should build in redundancy or dual control using approved safety devices for
these applications.
DELIVERY
Pepperl+Fuchs® Inc. will deliver its products F.O.B. from its warehouse, place of manufacture or other place from which
the products are actually shipped within the U.S.A.
Freight charges will be prepaid and added to invoice.
Warranty Terms and Conditions
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