Install Instructions

ManualsBrandsTaco ManualsFlow Switches1" Stainless Steel Flow Switch NEMA4 w/ Flexible Paddles (Small Turn Radius)

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 housing and high impact

resistant polycarbonate cover.

Not for use in hazardous loca-

tions.

Contacts:

One SPDT (Form C) switch

10 Amps at 125/250VAC

.5 Amps at 125VDC

.25 Amps at 250VDC

Motor Ratings : 115VAC 230VAC

Horsepower : 1/3 1/3

AC F.L.A. : 7.2 3.6

AC L.R.A. : 43.2 21.6

Pilot Duty Rating : 332VA 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 151°F (0°C to 66°C)

Media Temperature Range:

-20°F to 250°F (-29°C to 121°C)

Pipe Connection:

IFSWSB: 1 in. NPT Brass

IFSWSS: 1 in. NPT 316 Stainless Steel

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 IFSWS Series is a low turn radius (1.88")

flow switch used in liquid flow lines carrying

water or any fluid not harmful to brass, stain-

less 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.

# 5401117-REV E

EFFECTIVE: March 17, 2004

102-026

Instruction Sheet

IFSWS Industrial Flow Switch

SUPERCEDES: 102-026 DATED January 1, 2002

Summary of content (4 pages)

PAGE 1
Instruction Sheet IFSWS Industrial Flow Switch SUPERCEDES: 102-026 DATED January 1, 2002 102-026 EFFECTIVE: March 17, 2004 # 5401117-REV E Listings/Approvals: • UL Guide (NKPZ) for industrial control equipment per UL Standard 508 Industrial Control Equipment • UL Guide (MFHX) for heating/cooling appliance switch per UL Standard 353 Limit Controls GENERAL The IFSWS Series is a low turn radius (1.
PAGE 2
MOUNTING AND INSTALLATION The IFSWS 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 should be mounted on the top side of the pipe where it will be accessible. The switch will trip at a lower flow rate than shown in Table 1.
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 cut 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.