Watts 009 Series - User Manual

Installation, Maintenance, and Repair Manual
Series 009 and LF009
Series 009-FS and LF009-FS
Reduced Pressure Zone Assemblies
Size:
1
⁄4" – 3"
RP/IS-009/009-FS
Testing
For field testing procedure, refer to Watts installation sheets
IS-TK-DP/DL, IS-TK-9A, IS-TK-99E and IS-TK-99D at watts.com.
For other repair kits and service parts, refer to the Backflow
Prevention Products Repair Kits & Service Parts price list PL-RP-
BPD at watts.com.
For technical assistance, contact your local Watts representative.
NOTICE
For Australia and New Zealand, line strainers should be installed
between the upstream shutoff valve and the inlet of the backflow
preventer.
Local building or plumbing codes may require modifications to the
information provided. You are required to consult the local building
and plumbing codes prior to installation. If this information is not
consistent with local building or plumbing codes, the local codes
should be followed.
Need for Periodic Inspection/Maintenance: This product must
be tested periodically in compliance with local codes, but at least
once per year or more as service conditions warrant.
If installed on a fire suppression system, all mechanical checks,
such as alarms and backflow preventers, should be flow tested and
inspected in accordance with NFPA 13 and/or NFPA 25.
Corrosive water conditions and/or unauthorized adjustments or
repair could render the product ineffective for the service intended.
Regular checking and cleaning of the product’s internal components
helps assure maximum life and proper product function.
WARNING
!
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information
can result in death, serious personal injury, property
damage, or damage to the equipment.
Keep this Manual for future reference.
Installation Instructions
Indoors
For indoor installations, the assembly needs to be easily accessible
to facilitate testing and servicing. If it is lo cat ed in a line close to a
wall, be sure the test cocks are easily accessible. A drain line and
air gap should be piped from the relief valve connection as shown
in Figure 1. This is where evidence of discharge is clearly visible,
signaling the need to protect against water damage. Therefore,
never install the assembly in concealed locations. (For more infor-
mation, download the ES-AG/EL/TC specification at watts.com.)
Figure 1
Air Gap
Main
Strainer
Meter
2
1
⁄2" – 3"
12"
Series 009-FS and LF009-FS assemblies of sizes ½" to 2" are
equipped with an integrated flood sensor that, when activated, trig-
gers notification of potential flood events from excessive relief valve
discharges. An add-on sensor connection kit is required to imple-
ment activation so that the alert system can be used with building
management systems or cellular communication. A retrofit sensor
connection kit is available for existing installations. See “Add-on and
Retrofit Sensor Connection Kits,” on pages 6 and 7, for the all
qualifying series models and valve sizes.
LF009M2-QT-FS

Summary

Installation Instructions

Indoor Installation Guidelines

Guidance for installing assemblies indoors, ensuring accessibility and proper drainage.

Outdoor Installation Guidelines

Instructions for outdoor installation, addressing freezing conditions and accessibility.

Parallel Installation Configuration

Describes piping two or more smaller assemblies in parallel for increased capacity.

Inspection and Maintenance

Annual Inspection Requirements

Mandatory annual inspection, testing, and cleaning for maximum product life and function.

Shutoff Valve Placement

Specifies the correct mounting of shutoff valves relative to the backflow preventer.

Strainer Use and Caution

Advises on installing strainers and cautions against use on seldom-used lines.

Relief Valve Discharge Management

Air Gap and Drain Line

Details managing relief valve discharge via air gaps and properly sized drain lines.

Fire Protection System Testing

Special considerations for testing assemblies installed on fire suppression systems.

Servicing the Relief Valve

Servicing Check Valves

Troubleshooting

Common Symptoms and Solutions

Lists common issues with check valves and their resolution steps.

Add-on and Retrofit Sensor Connection Kits

BMS Integration Kits

Details kits for integrating flood sensors with Building Management Systems.

Cellular Communication Kits

Details kits for adding flood sensors to existing installations for cellular alerts.

Limited Warranty Information

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

This manual describes the Watts Series 009 and LF009 Reduced Pressure Zone Assemblies, including the 009-FS and LF009-FS models, which are backflow preventers designed for sizes ranging from 1/4" to 3".

Function Description

These devices are reduced pressure zone assemblies, primarily designed to prevent backflow in water systems. The "FS" models (009-FS and LF009-FS) of sizes 1/2" to 2" are equipped with an integrated flood sensor. This sensor, when activated by excessive relief valve discharges, triggers notifications of potential flood events. This feature enhances safety by providing early warning of potential water damage. The system can be integrated with building management systems or cellular communication for alerts.

Important Technical Specifications

• Sizes: Available for pipe sizes from 1/4" to 3".
• Flood Sensor (FS models): Integrated flood sensor for sizes 1/2" to 2".
• Connection Kits:
  • Add-on/Retrofit Sensor Connection Kits for Building Management Systems:
    • FP-BF-BMS-1/2-2 (for new installations, sizes 1/2" to 2"): Includes sensor activation module, cable, deflectors (4), ground wire, and power adapter. Activates integrated flood sensor for BMS controller.
    • FP-RFK-BF-BMS-CFS-1/2-3/4 (for existing installations, sizes 1/2" to 3/4"): Includes flood sensor, deflector, sensor activation module, cable, ground wire, and power adapter. Installs flood sensor for BMS controller.
    • FP-RFK-BF-BMS-CFS-1-11/2 (for existing installations, sizes 1" to 1 1/2"): Includes flood sensor, deflectors (2), sensor activation module, cable, mounting bolts, ground wire, and power adapter. Installs flood sensor for BMS controller.
    • FP-RFK-BF-BMS-CFS-2 (for existing installations, size 2"): Includes flood sensor, deflector, sensor activation module, cable, mounting bolts, ground wire, and power adapter. Installs flood sensor for BMS controller.
  • Add-on/Retrofit Sensor Connection Kits for Cellular Communication:
    • FP-BF-CFS-1/2-2 (for new installations, sizes 1/2" to 2"): Includes sensor activation module, cable, deflectors (4), Cellular Gateway with mounting kit, ground wire, and power adapter. Activates integrated flood sensor for cellular communication (email, SMS, voice call alerts).
    • FP-RFK-BF-CFS-1/2-3/4 (for existing installations, sizes 1/2" to 3/4"): Includes flood sensor, deflector, sensor activation module, cable, Cellular Gateway with mounting kit, ground wire, and power adapter. Installs flood sensor for cellular communication.
    • FP-RFK-BF-CFS-1-11/2 (for existing installations, sizes 1" to 1 1/2"): Includes flood sensor, deflectors (2), sensor activation module, cable, mounting bolts, Cellular Gateway with mounting kit, ground wire, and power adapter. Installs flood sensor for cellular communication.
    • FP-RFK-BF-CFS-2 (for existing installations, size 2"): Includes flood sensor, deflector, sensor activation module, cable, mounting bolts, Cellular Gateway with mounting kit, ground wire, and power adapter. Installs flood sensor for cellular communication.
• Relief Valve Discharge Rates: Charts are provided for 1/2"-1" and 1 1/4"-3" sizes, showing flow rate (gpm) versus zone pressure (psi).
• Typical Flow Rates by Floor Drain Manufacturers: Provides guidelines for floor drain sizing based on GPM for 2", 3", 4", 5", 6", and 8" drains.

Usage Features

• Installation Flexibility: Can be installed indoors or outdoors (above ground is preferred). For outdoor installations in freezing conditions, an insulated enclosure (e.g., WattsBox) is recommended.
• Accessibility: Must be installed in an easily accessible location to facilitate testing and servicing.
• Drainage: A drain line and air gap should be piped from the relief valve connection to ensure adequate drainage and visible discharge, preventing water damage. Concealed installations are not recommended.
• Parallel Installations: Two or more smaller assemblies can be piped in parallel to serve large supply pipe mains, allowing for increased capacity and servicing of individual valves without shutting down the entire line.
• Start-Up Procedure: Involves slowly opening upstream and downstream shutoff valves to prevent water hammer or shock damage.
• Backflow Prevention: Designed to maintain a minimum 1.0 PSID (pounds per square inch differential) to prevent backflow.
• Fire Protection Systems: Special considerations and confirming flow tests are required when installed on fire protection systems, in accordance with NFPA guidelines.

Maintenance Features

• Periodic Inspection/Maintenance: Requires periodic testing in compliance with local codes, at least once per year, or more frequently as service conditions warrant.
• Fire Suppression Systems: Alarms and backflow preventers on fire suppression systems should be flow tested and inspected according to NFPA 13 and/or NFPA 25.
• Internal Component Cleaning: Regular checking and cleaning of internal components helps assure maximum life and proper product function.
• Troubleshooting Guide: Provides solutions for common issues such as check valve failure to hold minimum PSID, chatter during flow conditions, and low flows passing through the mainline valve.
• Relief Valve Servicing:
  • No special tools are required for Series 009 2 1/2" - 3".
  • Involves removing the cover bolts, lifting the cover to access the stem and diaphragm assembly, and removing the relief valve spring.
  • The relief valve seat can be removed for cleaning. The disc rubber is molded into the disc holder and is replaced as a disc holder assembly.
  • Reassembly involves pressing the seat firmly into place, centering the spring, and inserting the cover and relief valve module as a unit.
• First and Second Check Valve Servicing:
  • Involves removing the relief valve assembly, then removing the retainer and check valve modules.
  • The check seats are attached to the cage with a bayonet-type locking arrangement, allowing for disassembly of the seat, spring cage, spring, and disc assembly.
  • Components can be cleaned or replaced with new parts from a repair kit. O-rings should be cleaned or replaced and lightly greased with FDA-approved silicon grease.
  • Check modules are installed with the seat facing the valve inlet.
• Repair Kits and Service Parts: Refer to the Backflow Prevention Products Repair Kits & Service Parts price list PL-RP-BPD for ordering.
• Technical Assistance: Contact local Watts representative for support.

Watts 009 Series Specifications