Table of Contents
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Model 1001A Installation and Operation Manual
Table of Contents
Page 2
System Purpose and Description
Purpose, System description, Important notes
Page 3
Defi nes specifi c features of the system
Page 3
System & material specifi cations, System
accessories, Spare parts, Tools & test equipment
Page 4
Design requirements, Adjacent enclosures, Device
ventilation, Temperature limitations
Page 5
Installation diagram
Page 6
Establishing connection sizes, Determining enclosure
inlet & outlet connection locations
Page 7
LH, RH, TM, BM & WM confi gurations,
FM & PM confi gurations
Page 8
ECK, ILFK connection diagram, typical panel mount
diagram
Page 9
Mounting plate dimension diagrams
nameplates
connection requirements
LH, RH, TM, BM, WM, FM & PM tubing
LH, RH, TM, BM, WM, FM, & PM confi guration
connection points, Pneumatic diagram
Wiring requirements, Enclosure power & alarm signal,
Enclosure wiring methods & connections
Electrical & WPS style conduit and connection parts
Class I & Class II set-up
Class I & Class II operation
Troubleshooting chart
Page 20 Warranty and Liability Statement
Warranty notes, General terms, Limitations
Page 21 Customer Notes
Regular maintenance, Long-term maintenance,
Page 23 Systems Identifi cation & Application Information
2
Purpose and Description
Purpose
Pepperl+Fuchs' Bebco EPS System allows the use of general-
purpose or nonrated electrical or electronic devices, with
exception to devices that produce excessive heat, utilize
combustible gas, or expose arcing contacts to the hazardous
atmosphere, in NEMA (National Electrical Manufacturers
Association) 4 or 12 enclosures in the place of explosion proof
NEMA 7 enclosures. Other purposes include heat, moisture and
dust contamination prevention.
Description
Model 1001A 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 fl ammable gas or vapor
accumulations. In Class II areas, the system maintains a "safe"
(1.0") pressure. In Class I areas, the system accomplishes four
air exchanges and maintains a "safe" (0.25") pressure. These
processes reduce the hazardous (classifi ed) area rating within
the enclosure(s), in accordance with the NEC - NFPA 70, Article
500, NFPA 496 and ISA 12.4
Important Notes
One (1) permanent fi le copy and one (1) operations copy of
this manual must be studied and retained by the operator of
this system. User's agents are responsible for transferring this
manual to the user, prior to start-up.
The contents of this manual have been arranged to allow the
use of this product as a stand-alone device on equipment
and enclosures supplied by the user or its agents. The
manual's parameters encompass a combination of both
National Fire Protection Association (NFPA) requirements and
Pepperl+Fuchs, Inc. requirements. Pepperl+Fuchs therefore
acknowledges the use of NFPA 496 as a guideline, that we
have enhanced certain NFPA requirements and that additional
information has been compiled to complete this document.
The manual is intended as a complete guide and must be
considered, unless specifi cally stated otherwise, that all
directives contained herein are requirements for safe, practical
and effi cient 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 specifi cations are subject to change without notice.
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