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System Sensor WFD40 User Manual

System Sensor WFD40
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D770-01-00 1 I56-459-07
WFD Vane-type Waterflow
Detectors
INSTALLATION AND MAINTENANCE INSTRUCTIONS
A Division of Pittway
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
Important
Please Read Carefully And Save
This instruction manual contains important information
about the installation and operation of waterflow detectors.
Purchasers who install waterflow detectors for use by oth-
ers must leave this manual or a copy of it with the user.
Read all instructions carefully before beginning. Follow
only those instructions that apply to the model you are in-
stalling.
CAUTION
Use vane-type waterflow detectors in wet-pipe systems
only. Do NOT use them in dry pipe, deluge, or preaction
systems. The sudden inrush of water in such systems may
break the vane or damage the mechanism.
Do not use in potentially explosive atmospheres. Do not al-
low unused wires to remain exposed.
Specifications
Contact Ratings: 10 A @ 125/250 VAC
2.5 A @ 24 VDC
Triggering Threshold Bandwidth (Flow Rate): 4 to 10 gpm
Static Pressure Rating: 250 PSI (Max) 2" – 8"
Dimensions, Installed: 3.5"H x 3.0"W x 6.7"D
Operating Temperature Range: 32°F to 120°F (0°C to 49°C)
Compatible Pipe: Steel water pipe, schedule 10 or 40.
Shipping Weight: 4 to 7 lb., according to size.
Enclosure Rating: NEMA 4, as tested by Underwriters Laboratories, Inc.
(requires optional Outdoor Cover Gasket Model WFDN4 and cover part #C58-164-01)
Principles Of Operation
Vane-type waterflow detectors mount to water-filled pipes
in sprinkler systems. Waterflow in the pipe deflects a vane,
which produces a switched output–usually after a specified
delay. All waterflow detectors have a pneumatically con-
trolled mechanical delay mechanism. Delays do NOT accu-
mulate; they reset if the flow of water stops before the
entire delay has elapsed. All switches actuate when the wa-
ter flow rate is 10 gallons per minute or greater, but will not
actuate if the flow rate is less than 4 gallons per minute.
This System Sensor installation manual covers the follow-
ing waterflow detectors for sprinkler/fire alarm applica-
tions.
Models
WFD20 Waterflow detector, Schedule 10/40, 2"
WFD25 Waterflow detector, Schedule 10/40, 2-1/2"
WFD30 Waterflow detector, Schedule 10/40, 3"
WFD35 Waterflow detector, Schedule 10/40, 3-1/2"
WFD40 Waterflow detector. Schedule 10/40, 4"
WFD50 Waterflow detector, Schedule 10/40, 5"
WFD60 Waterflow detector, Schedule 10/40, 6"
WFD80 Waterflow detector, Schedule 10/40, 8"
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Table of Contents

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System Sensor WFD40 Specifications

General IconGeneral
TypeWaterflow Detector
Retard TimeAdjustable, 0-90 seconds
CommunicationN/A (Mechanical Device)
Humidity Range10% to 93% non-condensing
Waterflow Sensitivity4 – 10 GPM
EnclosureNEMA 4 rated
Operating Temperature32°F to 120°F (0°C to 49°C)
Contact Ratings10 A @ 125/250 VAC; 2.5 A @ 30 VDC

Summary

WFD Vane-type Waterflow Detectors

Specifications

Details technical characteristics and operational limits of the waterflow detector.

Important Safety and Handling

Contains crucial information for users to read and save for proper installation and operation.

Principles of Operation

Explains how the vane-type waterflow detector functions and activates.

Available Models

Lists the different models of waterflow detectors covered by this manual.

Installation Guidelines

Provides essential prerequisites and standards for the correct installation of the detector.

Wiring the Detector

Details electrical connections and wiring requirements for the waterflow detector.

Mechanical Delay Adjustment

Explains how to adjust the pneumatic delay mechanism for proper operation.

Operational Testing Procedures

Outlines the steps for testing the waterflow detector's functionality after installation.

Maintenance and Replacement

Provides instructions for maintaining the detector and replacing faulty components.

Limitations of Waterflow Detectors

Lists important limitations and considerations for the effective use of waterflow detectors.

Three-Year Limited Warranty

Details the warranty terms and conditions for the waterflow detector product.

WFDT/WFDTH Vane-type Waterflow Detectors

Specifications for WFDT/WFDTH

Details technical characteristics and operational limits of the WFDT/WFDTH detectors.

Important Information for Users

Contains crucial information for users to read and save for proper installation and operation.

Approximate Tee Depth Requirements

Provides guidance on tee fitting dimensions required for detector installation.

Principles of Operation for WFDT/WFDTH

Explains how the vane-type waterflow detector functions and activates.

Compatible Pipe Tees

Lists compatible pipe tee types for the WFDT/WFDTH detectors.

Installation Guidelines for WFDT/WFDTH

Provides essential prerequisites and standards for correct installation of the detectors.

Mounting Instructions

Details the step-by-step process for mounting the WFDT/WFDTH waterflow detectors.

Preoperation Testing

Outlines the steps for testing the waterflow detector's functionality before initial use.

Field Wiring for WFDT/WFDTH

Details electrical connections and wiring requirements for the WFDT/WFDTH detectors.

Mechanical Delay Adjustment

Explains how to adjust the pneumatic delay mechanism for proper operation.

Operational Testing

Outlines the steps for testing the waterflow detector's functionality after installation.

Maintenance and Replacement

Provides instructions for maintaining the detector and replacing faulty components.

Limitations of Waterflow Detectors

Lists important limitations and considerations for the effective use of waterflow detectors.

Three-Year Limited Warranty

Details the warranty terms and conditions for the waterflow detector product.

WFDTNR Vane-type Waterflow Detector

Specifications for WFDTNR

Details technical characteristics and operational limits of the WFDTNR detector.

Important Information for Users

Contains crucial information for users to read and save for proper installation and operation.

Approximate Tee Depth Requirements

Provides guidance on tee fitting dimensions required for detector installation.

Principles of Operation for WFDTNR

Explains how the vane-type waterflow detector functions and activates.

Compatible Pipe Tees

Lists compatible pipe tee types for the WFDTNR detector.

Installation Guidelines for WFDTNR

Provides essential prerequisites and standards for correct installation of the detector.

Mounting Instructions

Details the step-by-step process for mounting the WFDTNR waterflow detector.

Operational Testing

Outlines the steps for testing the waterflow detector's functionality before initial use.

Field Wiring for WFDTNR

Details electrical connections and wiring requirements for the WFDTNR detector.

Maintenance and Replacement

Provides instructions for maintaining the detector and replacing faulty components.

Limitations of Waterflow Detectors

Lists important limitations and considerations for the effective use of waterflow detectors.

OSY2 Gate Valve Supervisory Switch

Specifications for OSY2 Switch

Details technical characteristics and operational limits of the OSY2 gate valve switch.

Important Information for Users

Contains crucial information for users to read and save for proper installation and operation.

General Installation Considerations

Provides general advice and considerations for installing the OSY2 supervisory switch.

Narrow Yoke Valves Installation

Addresses installation challenges and solutions specific to narrow yoke valves.

Limited Clearance Valves Installation

Addresses installation challenges and solutions specific to limited clearance valves.

Installation Procedure for OSY2

Details the step-by-step process for installing the OSY2 gate valve supervisory switch.

Testing the OSY2 Switch

Outlines the procedure for testing the supervisory switch's operation.

Limitations of Supervisory Switches

Lists important limitations and considerations for the effective use of supervisory switches.

Three-Year Limited Warranty

Details the warranty terms and conditions for the supervisory switch product.

PIBV2 Post Indicator and Butterfly Valve Supervisory Switch

Specifications for PIBV2 Switch

Details technical characteristics and operational limits of the PIBV2 supervisory switch.

Important Information for Users

Contains crucial information for users to read and save for proper installation and operation.

General Information for PIBV2 Valve Types

Provides general information on the PIBV2 switch for post indicator and butterfly valves.

Installation Instructions for Post Indicator Valves

Details the step-by-step installation process for PIBV2 on post indicator valves.

Installation Instructions for Butterfly Valves

Details the step-by-step installation process for PIBV2 on butterfly valves.

General Installation Instructions

Provides general installation procedures and considerations for PIBV2 switches.

Reversing the Action of PIBV2

Explains how to reverse the switch action for different valve configurations.

Limitations of Supervisory Switches

Lists important limitations and considerations for the effective use of supervisory switches.

Three-Year Limited Warranty

Details the warranty terms and conditions for the supervisory switch product.

Cover Tamper Switch

Specifications for Cover Tamper Switch

Details technical characteristics and operational limits of the cover tamper switch.

General Information on Cover Tamper Switch

Provides general information about the function and application of the cover tamper switch.

Installation Guidelines

Provides essential prerequisites and standards for installing the cover tamper switch.

Mounting Instructions

Details the step-by-step process for mounting the cover tamper switch.

Field Wiring for Cover Tamper Switch

Details electrical connections and wiring requirements for the cover tamper switch.

Operational Testing

Outlines the procedure for testing the cover tamper switch's functionality.

Three-Year Limited Warranty

Details the warranty terms and conditions for the cover tamper switch product.

546-8000 Cover Tamper Switch

Specifications for 546-8000 Switch

Details technical characteristics and operational limits of the 546-8000 cover tamper switch.

General Information on 546-8000 Switch

Provides general information about the function and application of the 546-8000 cover tamper switch.

Wiring Instructions for 546-8000 Switch

Details the wiring procedure for the 546-8000 cover tamper switch.

Three-Year Limited Warranty

Details the warranty terms and conditions for the 546-8000 cover tamper switch product.

EPS10 Series Alarm Pressure Switches

Specifications for EPS10 Switches

Details technical characteristics and operational limits of the EPS10 alarm pressure switches.

Important Information for Users

Contains crucial information for users to read and save for proper installation and operation.

Operation of EPS10 Switches

Explains how the pressure switch operates based on pressure changes and settings.

Installation of EPS10 Switches

Details the steps for installing the EPS10 alarm pressure switches.

Adjustments to Factory Settings

Details how to adjust the factory settings for pressure alarm response on EPS10 switches.

Three-Year Limited Warranty

Details the warranty terms and conditions for the pressure switch product.

EPS40 Series and EPS120 Series Supervisory Pressure Switches

Specifications for EPS40/EPS120 Switches

Details technical characteristics and operational limits of EPS40/EPS120 supervisory pressure switches.

Important Information for Users

Contains crucial information for users to read and save for proper installation and operation.

Operation of EPS40/EPS120 Switches

Explains how the pressure switch operates based on pressure changes and settings.

Installation of EPS40/EPS120 Switches

Details the steps for installing the EPS40/EPS120 supervisory pressure switches.

Adjustments to Factory Settings

Details how to adjust factory settings for pressure alarm response on EPS40/EPS120 switches.

Single-switch Model Adjustments

Provides specific adjustment instructions for single-switch EPS40/EPS120 models.

Dual-switch Model Adjustments

Provides specific adjustment instructions for dual-switch EPS40/EPS120 models.

Three-Year Limited Warranty

Details the warranty terms and conditions for the pressure switch product.

SSM and SSV BELL Series

Specifications for SSM/SSV Bells

Details technical characteristics and sound output of SSM and SSV alarm bells.

Important Information for Users

Contains crucial information for users to read and save for proper installation and operation.

General Description of Bells

Provides general information about the alarm bells and relevant standards.

Operational Testing

Outlines the procedure for testing the alarm bell's functionality.

Installation of SSM/SSV Bells

Details the steps for installing the SSM and SSV alarm bell mechanisms.

Audibility Rating Measurement

Explains how the sound level measurements for alarm bells are made and specified.

Limitations of Alarm Devices

Lists important limitations and considerations for the effective use of alarm bells.

Three-Year Limited Warranty

Details the warranty terms and conditions for the alarm bell product.

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