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Watts 007 Series Instruction, Installation, Maintenance And Repair Manual
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Watts 007 Series Instruction, Installation, Maintenance And Repair Manual

Double check valve assemblies
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Installation, Maintenance, and Repair Manual
Series 007, LF007
Double Check Valve Assemblies
⁄
" – 3"
1
2
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.
WARNING
!
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 the
information provided here is not consistent with local building
or plumbing codes, the local codes should be followed.
This product must be installed by a licensed contractor in
accordance with local codes and ordinances.
WARNING
!
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.
All products must be retested once maintenance has been
performed. 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 and external components helps assure maximum life and
proper product function.
NOTICE
For Australia and New Zealand, line strainers should be installed
between the upstream shutoff valve and the inlet of the backflow
preventer.
Watts product specifications in U.S. customary units and metric
are approximate and are provided for reference only. For precise
measurements, contact Watts Technical Service. Watts reserves
the right to change or modify product design, construction, speci-
fications, or materials without prior notice and without incurring
any obligation to make such changes and modifications on Watts
products previously or subsequently sold.
Testing
For field testing procedure, refer to the Watts installation sheets
IS-TK-DL, IS-TK-9A, IS-TK-99E and IS-TK-99D at
www.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 www.watts.com.
For technical assistance, contact your local Watts representative.
007M3QT
LF007-NRS-IOT
Series 007 (½" to 2") and LF007 (½" to 3") are designed for installation
at referenced cross-connections to prevent the backflow of polluted
water into the potable water supply. Series LF007 Model IOT (2½" to
3" only) includes factory-installed pressure sensors.
NOTICE
For IOT models, an add-on monitoring connection kit is required to
collect psi measurements from the integrated pressure sensors. Without
the connection kit, the pressure sensors are passive components
and will not communicate with any other device. For BMS only. (The
connection kit and pressure sensors are also available for existing instal-
lations. See "Add-on Monitoring Connection Kits," for ordering details.)
NOTICE
Use of integrated pressure sensors on and monitoring connection
kit with IOT models does not remove the need to comply with all
required instructions, codes, and regulations related to installation,
operation, and maintenance of the backflow preventer.
Watts
is not responsible for data transmission failures due to
®
power issues.
RP-IS-007

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Summary of Contents for Watts 007 Series

  • Page 1 NOTICE any obligation to make such changes and modifications on Watts products previously or subsequently sold. Use of integrated pressure sensors on and monitoring connection...
  • Page 2 Installation Guidelines Figure 1 Series 007 and LF007 ⁄ " – 2" Indoors Strainer First Shutoff Valve Check local codes for installation requirements. Pipelines should be thoroughly flushed to remove foreign material before installing the unit. A strainer should be installed ahead of the backflow preventer, 007QT-S / LF007QT-S as shown in Figure 1, to prevent the disc from unnecessary fouling.
  • Page 3 Servicing the First and Second Check Valves Series 007 and LF007 ⁄ " – 2" Check O-rings NOTICE Cage Before servicing, ensure supply water is turned off or shutoff valvesare in the closed position. Open test cocks No. 2, No. 3, and No.
  • Page 4 WattsBox Insulated Enclosures Available in Aluminum or Fiberglass. For more information, refer to ES-WB at watts.com. Outside Building Above Ground In an area where freezing conditions do not occur, Series LF007 can be installed outside of a building, as shown in Figure 5. The...

  • Page 5: Troubleshooting

    Servicing the First and Second Check Valves Series LF007 ⁄ " – 3" 1. Remove cover bolts and cover. Caps/ Seat Disc Seat Spring Retainer Seat 2. Remove the retainer from the body bore. The check valve O-ring Assembly modules can now be removed from the valve by hand or with a screwdriver.
  • Page 6 Add-on Monitoring Connection Kits ORDERING CODE ADD-ON/REPLACEMENT KIT DESCRIPTION 88003067 BF-BMS-MCK Includes a turnkey solution for transmitting valve BMS Monitoring Connection Kit assembly pressure measurements to a building Series LF007 Model IOT management system; consists of an interface Sizes 2½" to 3" module with three (3) sensor cables, data cable, and power adapter.
  • Page 7 Notes _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _...
  • Page 8 Limited Warranty: Watts Regulator Co. (the “Company”) warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge.

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