Watts LF007 Series Instruction, Installation, Maintenance And Repair Manual
Double check valve assembly
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Installation, Maintenance, and Repair Manual
Series LF007
Double Check Valve Assembly
2½" – 3"
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 technical assistance, contact your local Watts representative.
LF007-NRS-IOT
Series LF007 large-diameter backflow preventer is designed for
installation at referenced cross-connections to prevent the backflow
of polluted water into the potable water supply. Series LF007 Model IOT
includes factory-installed pressure sensors.
NOTICE
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
that do not communicate with any other device. For BMS only.
(The connection kit and pressure sensors are also available for
existing installations. For ordering details, see "Add-on Monitoring
Connection Kits."
NOTICE
Use of integrated pressure sensors and monitoring connection
kit with Model IOT 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
connectivity issues, power outages, or improper installation.
RP/IS-LF007L
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Summary of Contents for Watts LF007 Series
- Page 1 For Australia and New Zealand, line strainers should be installed operation, and maintenance of the backflow preventer. between the upstream shutoff valve and the inlet of the backflow Watts is not responsible for data transmission failures due to preventer. connectivity issues, power outages, or improper installation.
- Page 2 Available in Aluminum or Fiberglass. this manner whenever possible. In an area where freezing conditions For more information, refer to ES-WB at watts.com. can occur, Series LF007 should be installed above ground in an insulated enclosure.
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Page 3: Troubleshooting
Servicing the Check Valves No special tools are required to service the assembly. 1. Remove cover bolts and cover. 2. Remove the retainer from the body bore. The check valve modules can be removed from the valve by hand or with a screwdriver. - Page 4 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.
- Page 5 Pour obtenir des mesures précises, veuillez données dues à des problèmes de connectivité, des pannes de contacter le service technique de Watts. Watts se réserve le droit courant ou une mauvaise installation. de changer ou de modifier la conception, la construction, les spécifications ou les matériaux des produits sans préavis et sans...
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Page 6: Directives D'installation
Disponible en aluminium ou en fibre de verre. Pour de plus amples renseignements, consultez ES-WB à l’adresse Bâtiment extérieur au-dessus du sol watts.com. Dans une zone où il n’y a pas de conditions de gel, la série LF007 peut être installée à l’extérieur d’un bâtiment. (Voir la figure 2.) L’installation la plus satisfaisante est au-dessus du sol et doit être... -
Page 7: Dépannage
Entretien des clapets antiretour Aucun outil spécial n’est requis pour l’entretien de l’ensemble. 1. Retirez les boulons du couvercle et le couvercle. 2. Retirez le dispositif de retenue de l’alésage du corps. Les modules à clapet s antiretour peuvent maintenant être retirés de la vanne à... - Page 8 Garantie limitée : Watts Regulator Co. (la « Société ») garantit que chaque produit est exempt de tout défaut de matériau et de fabrication dans le cadre d’une utilisation normale pendant une période d’un an à compter de la date d’expédition initiale. En cas de défaut pendant la période de garantie, la société remplacera, ou à son gré remettra en état le produit sans frais.
- Page 9 únicamente como referencia. Para conocer las dimensiones exactas, póngase en contacto con el Servicio Técnico de Watts. Watts se reserva el derecho de cambiar o modificar el diseño, la fabricación, las especificaciones o los materiales del producto, sin previo aviso y sin incurrir en ninguna obligación de hacer dichos cambios y modificaciones en los productos de Watts que se hayan vendido antes o después del cambio o...
- Page 10 Edificio exterior sobre el suelo Disponibles en aluminio o fibra de vidrio. Para obtener más información, consulte ES-WB en watts.com. En un área donde no se producen condiciones de congelación, la serie LF007 puede instalarse en el exterior de un edificio. (Consulte la Figura 2.) La instalación más satisfactoria se realiza sobre el...
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Page 11: Solución De Problemas
Mantenimiento de las válvulas de retención No se necesitan herramientas especiales para realizar el mantenimiento del conjunto. 1. Retire los pernos y la cubierta. 2. Retire el retenedor del orificio del cuerpo. Ahora los módulos de la válvula de retención se pueden retirar de la válvula a mano Junta Topes/ Conjunto de... - Page 12 Garantía limitada: Watts Regulator Co. (la “Compañía”) garantiza que cada producto está libre de defectos en el material y la mano de obra cuando se usen de forma normal en un período de un año a partir de la fecha de envío original. En caso de que tales defectos se presenten dentro del período de garantía, la Empresa, a su criterio, reemplazará o reacondicionará el producto sin cargo alguno.