Install Instructions

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Instruction Sheet

IFSW1/W2 Industrial Flow Switch

Listings/Approvals:

• UL Guide (NKPZ) for industrial control

equipment per UL Standard 508 Indus-

trial Control Equipment

• UL Guide (MFHX) for heating/cooling

appliance switch per UL Standard 353

Limit Controls

• CSA Class (321106) for industrial con-

trol equipment per CSA Standard

C22.2 No. 14-M Industrial Control

Equipment

• CE Marked

Maximum Service Pressure: 250 PSI

Enclosure:

Die-cast grey powdercoat finish on cover.

Plated steel base.

Not for use in hazardous locations.

Contacts:

IFSW1: One SPDT (Form C) switch

IFSW2: Two sets of SPDT (Form C)

switches to provide versatility in wiring two

separate circuits.

15 Amps at 125/250VAC

.5 Amps at 125VDC

.25 Amps at 250VDC

Motor Ratings : 120VAC 240VAC

Horsepower : 1/8 1/4

AC F.L.A. : 3.8 2.9

AC L.R.A. : 22.8 17.4

Pilot Duty Rating :125VA 120/240VAC

Environmental Specifications:

• Suitable for indoor or outdoor use with

factory installed gasket and die-cast hous-

ing.

• NEMA 4 Rated Enclosure - use with appro-

priate conduit fitting.

Ambient Temperature Range:

32°F to 176°F (0°C to 80°C)

Media Temperature Range:

32°F to 250°F (0°C to 121°C)

Pipe Connections:

1" NPT Brass on models IFSxxB

1" NPT 316 Stainless Steel on models

IFSxxS

Conduit Entrance:

One opening for 1/2" conduit

Usage: For pipe sizes 1" - 8"

Caution: This device is not intended for appli-

cations in explosive environments.

GENERAL

The Model IFSW1/W2 Series is a flow switch

used in liquid flow lines carrying water or any

fluid not harmful to brass, stainless steel,

EPDM or fluorosilicone, and not classified as a

hazardous fluid.

This switch can serve as a way to start and

stop electrically operated equipment when a

flow or no flow condition occurs in a variety of

applications.

This device is designed for use only as an

operating control. Where an operating control

failure would result in personal injury and/or

loss of property, it is the responsibility of the

installer to add devices (safety, limit controls)

that protect against, or systems (alarm, super-

visory systems) that warn of control failure.

102-027

SUPERCEDES: 102-027 DATED May 8, 2003

# 5401111-REV F

EFFECTIVE: March 17, 2004

Summary of content (4 pages)

PAGE 1
Instruction Sheet IFSW1/W2 Industrial Flow Switch SUPERCEDES: 102-027 DATED May 8, 2003 102-027 EFFECTIVE: March 17, 2004 # 5401111-REV F GENERAL The Model IFSW1/W2 Series is a flow switch used in liquid flow lines carrying water or any fluid not harmful to brass, stainless steel, EPDM or fluorosilicone, and not classified as a hazardous fluid. This switch can serve as a way to start and stop electrically operated equipment when a flow or no flow condition occurs in a variety of applications.
PAGE 2
MOUNTING AND INSTALLATION The IFSW1/W2 Series may be mounted in a horizontal pipe line or a vertical pipe line with upward liquid flow. It is not recommended for installations where flow is downward. When mounted in a horizontal pipe line the switch will trip at a lower flow rate than shown in Fig. 6. FIG. 1 Mount the device in a section of pipe where there is a straight run of at least 5 pipe diameters on each side of the flow switch. Do not locate adjacent to valves, elbows or orifices.
PAGE 3
FIG. 3 FIG. 5 Typical paddle arrangement for 6" to 8" pipe, using smaller flexible paddles for added support and higher sensitivity. Use the drawing at right as a template and trim at the dotted arc when trimming the appropriate paddle for intermediate pipe sizes. CAUTION: The paddle must not touch the inside of the pipe or bind in any way. NOTE: When installing rigid paddles, do not stack paddles. Only install ONE paddle that best fits the pipe. FIG.
PAGE 4
WIRING Use properly rated temperature supply wire for the anticipated service temperature. Make all electrical connections in accordance with the National Electrical Code and local regulations. See Fig. 6 for diagram illustrating switch action. ADJUSTMENT Remove switch cover and turn the sensitivity adjusting screw clockwise to increase the flow rate required to actuate the switch. Turn the FIG. 6 sensitivity adjusting screw counter-clockwise to decrease the flow rate required to actuate the switch.