Pepperl Fuchs 1004 User Manual

Type Y &Z purge and pressurization

(+) (―)

(+)

(―)

Wiring configuration Wiring configuration

NO

NC

Pressure

switch

Local alarm horn
or beacon

NO

NC

Pressure
switch

Local alarm
horn or beacon

Alarm system

Power source

Alarm system

Power source

120 VAC power supply

(supply voltages 24 VDC and

240 VAC available upon request)

COM

WPS

Terminal block connections

WPSA

Terminal block connections

NO NC

Alarm switching

Alarm Normally Closed

Alarm Normally Open

Alarm Common

COM NO NC

Alarm Switching

Alarm Normally Closed

Alarm Normally Open

Alarm Common

120 VAC Neutral
120 VAC Hot

120 VAC power supply
(supply voltages 24 VDC and
240 VAC available on request)

Germany: [phone]Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

USA: [phone] Singapore: [phone]

www.pepperl-fuchs.com [e-mail] [e-mail]

[e-mail]

system

1004

NFPA 70, NFPA 496, ISA 12.4 standards

<

Optional alarm output indicates air lock failure

<

Type Y system certified for Class I, Division 1 to Division 2

<

Type Z system certified for Class I, Division 2 to nonhazardous

<

Enclosure volume up to 200 ft

<

3

1004 Series purge and pressurization system

Function

The model 1004 is a Rapid Exchange® purging system that operates on a supply of compressed instrument air or inert gas.
The system regulates and monitors pressure within sealed (protected) enclosure(s), in order to remove and prevent flammable gas or vapor
accumulations.
The system accomplishes four air exchanges and maintains a "safe" (0.25") pressure. A Pepperl+Fuchs Model EPV-4 Enclosure Protection Vent
is required for proper operation.
This process reduces the hazardous (classified) area rating within the enclosure(s), in accordance with the NEC - NFPA 70, Article 500,
NFPA 496 and ISA 12.4.

Connection

Technical Data

General specifications

Series 1004

Hazardous environment gas

Release date: 2021-01-08 Date of issue: 2021-01-08 Filename: t156423_eng.pdf

1

Type Y &Z purge and pressurization system 1004

Germany: [phone]Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

USA: [phone] Singapore: [phone]

www.pepperl-fuchs.com [e-mail] [e-mail]

[e-mail]

Technical Data

Electrical specifications

Connection Terminal blocks

Output

Output I -WPS-

Output type Switch contacts

Contact loading 120 VAC @ 15 A

Output II -WPSA-

Output type Switch contacts

Contact loading 120/220 VAC; 24 VDC @ 10 A; 125 VDC @ 50 mA

Pneumatic parameters

Protective gas supply instrument grade air or inert gas

Pressure requirement 80 - 120 psi

Safe pressure Setpoint: 0.25" (6.35 mm)

Operating conditions

Process conditions

Capacity and filtration 8.5 oz @ 40 µ

Exchange pressure 3" - 5"

Exchange flow rate 30 SCFM / 1800 SCFH

Exchange time 1 min / 7.5 ft

Ambient conditions

Ambient temperature -29 ... 49 °C (-20.2 ... 120.2 °F)

Mechanical specifications

Connection type System supply port: 1/2" FPT

Material Filter regulator body: zinc w/enamel finish

Mass 1004-LPS-* 6.8 kg (15 lb)

International approvals

FM approval Type Y

UL approval

cULus Type Y

power requirements: 24 / 120 / 240 VDC @ 3 / 4 / 11 watts

Flow rate: 0.1 - 3.5 SCFH (2.8 - 99 l /hr)

(With regulator set to 80 psi min during exchange)

3

Enclosure supply fitting: 1/2" tube fitting
Enclosure reference fitting: 1/4" tube
Switch conduit port size: 1/2" FPT

Regulator handle &bowl: polycarbonate
Enclosure pressure gauge: alum. w/enamel finish
Rapid Exchange®gauge: poly case and brass tube
Tube fittings &valves: 316 ss forged body
Tubing: 316 ss 1/4" &1/2" .035 welded
System nameplate: silk screened Lexan® &ss
Fastener hardware: alum. &stainless steel
Mounting plate: 316 14 ga #3 brush ss
EXP pressure switch body: anodized cast aluminum
Enclosure warning nameplate: silk screened stainless steel

1004-WPS* 10.4 kg (23 lb)

LPS: Class I, Division 1, Groups A, B, C, D
WPS: Class I, Division 1, Groups C, D
WPSA: Class I, Division 1, Groups A, B, C, D
Type Z
LPS: Class I, Division 2, Groups A, B, C, D
WPS: Class I, Division 2, Groups C, D
WPSA: Class I, Division 2, Groups A, B, C, D

LPS: Class I, Division 1, Groups A, B, C, D
WPS: Class I, Division 1, Groups C, D
WPSA: Class I, Division 1, Groups A, B, C, D
Type Z
LPS: Class I, Division 2, Groups A, B, C, D
WPS: Class I, Division 2, Groups C, D
WPSA: Class I, Division 2, Groups A, B, C, D

Release date: 2021-01-08 Date of issue: 2021-01-08 Filename: t156423_eng.pdf

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