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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.  

THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT.  THE COMPANY MAKES NO OTHER 

WARRANTIES, EXPRESS OR IMPLIED.  THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED 

WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach of warranty, and the Company shall not be responsible for any incidental, special 

or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting 

from labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or any other circumstances over which the Company has no 

control.  This warranty shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance or alteration of the product.  

Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages.  Therefore the above 

limitations may not apply to you.  This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State.  You should consult applicable state laws to 

determine your rights.  

SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF 

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL SHIPMENT.

RP-IS-909-909RPDA-FS-1915468   2137 

EDP# 1915468 

© 2021 Watts

USA:

  T: (978) 689-6066 • F: (978) 975-8350 • Watts.com

Canada:  

T: (888) 208-8927 • F: (905) 481-2316 • Watts.ca

Latin America:  

T: (52) 55-4122-0138 • Watts.com

Part Number

Add-On/Retrofit Kit

Description

Add-on and Retrofit Sensor Connection Kits for BMS

88003050

BMS Sensor Connection Kit, for LF909-FS  

Sizes 2½" to 10"

Includes a sensor activation module with cable, power adapter, 

and ground wire. Use this kit to activate the integrated  

flood sensor and enable flood detection capabilities for  

the relief valve to work with a third-party BMS control box  

(not included).

88003051

BMS Sensor Retrofit  

Connection Kit, for LF909 Sizes 2½" to 3"

Includes a flood sensor, sensor activation module with 

cable, power adapter, O-ring, mounting bolts, and ground 

wire. Use this kit to add flood detection capabilities to the 

relief valve of an existing installation working with a third-

party BMS control box (not included).

88003054

BMS Sensor Retrofit  

Connection Kit, for LF909 Sizes 4" to 10"

Includes a flood sensor, sensor activation module with 

cable, power adapter, O-ring, mounting bolts, and ground 

wire. Use this kit to add flood detection capabilities to  

the relief valve of an existing installation working with a 

third-party BMS control box (not included).

Add-on and Retrofit Sensor Connection Kits for Cellular Communication

88003052

Cellular Sensor Connection Kit, for LF909-FS  

Sizes 2½" to 10"

Includes a sensor activation module with cable, Cellular 

Gateway with mounting kit, power adapter, and ground 

wire. Use this kit to activate the integrated flood sensor  

and enable flood detection capabilities and e-mail, text,  

and voice notifications.

88003053

Cellular Sensor Retrofit Connection Kit,  

for LF909 Sizes 2½" to 3"

Includes a flood sensor, sensor activation module with 

cable, power adapter, Cellular Gateway with mounting kit, 

O-ring, mounting bolts, and ground wire. Use this kit to add 

flood detection capabilities to the relief valve of an existing 

installation and enable e-mail, text, and voice notifications.

88003055

Cellular Sensor Retrofit Connection Kit,  

for LF909 Sizes 4" to 10"

Includes a flood sensor, sensor activation module with 

cable, power adapter, Cellular Gateway with mounting kit, 

O-ring, mounting bolts, and ground wire. Use this kit to add 

flood detection capabilities to the relief valve of an existing 

installation and enable e-mail, text, and voice notifications.

Add-on and Retrofit Sensor Connection Kits

Determine the add-on sensor connection kit or retrofit sensor connection kit you need for your Series LF909 installation.

NOTICE

Removal of the flood sensor is not required for periodic inspection and maintenance or servicing checks.

Содержание 909 Series

Страница 1: ...on WARNING WARNING The installation and maintenance of backflow assemblies should be performed by a qualified licensed technician Failure to do so may result in a malfunctioning assembly 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 installa tion If the information provided here is n...

Страница 2: ... and local codes and meet the required safety provisions An air gap below the relief port must be maintained so as to avoid flooding and submersion of the assembly which may lead to a cross connection Figure 1 shows the primary components of the Series 909 LF909 FS Pipelines should be thoroughly flushed to remove foreign material before installing the unit A strainer should be installed ahead of t...

Страница 3: ...h Test cock No 2 No 3 and No 4 When valve is filled open the downstream shutoff slowly and fill the water supply system This is necessary to avoid water hammer or shock damage The installation of a Watts air gap with the drain line terminating above a floor drain handles any normal discharge or nuisance spit ting through the relief valve However floor drain size may need to be designed to prevent ...

Страница 4: ...all pressure differentials Close high valve A and open test cock No 2 Close test cock No 4 Disconnect vent hose at test cock No 4 Open valves B and C bleeding to atmosphere Then closing valve B restores the system to a normal static condition Observe the pres sure differential gauge If there is a decrease in the indicated value check valve No 1 is reported as leaking Test No 4 Purpose To test oper...

Страница 5: ...e retainers Sizes 21 2 3 turn the seat by one quarter to remove it One wire is drawn out clockwise the other counterclockwise 4 Lift the seat ring straight up to remove it 5 To replace the disc on sizes 21 2 4 remove the retaining nut For sizes 6 10 remove the Allen head socket screws Reverse this procedure to install the new disc For further details contact your tech ni cal sales representative D...

Страница 6: ... assembly 5 Inspect the bottom plug and spring assembly During normal field service there is no need to remove this assembly other than inspection Unscrew the assembly with a large pipe wrench CAUTION The spring is retained on the bottom plug and is highly loaded NO attempt should be made in the field to disassemble the bottom plug and spring piston assembly For replacement a complete bottom plug ...

Страница 7: ...m and or electri cally isolate the device with plastic pipe immediately upstream and down stream of the device B 6 Valve improperly reassembled B 6 If the valve is dis as sem bled during installation exercise caution when installing check springs in their proper location C Valve exhibits high pressure drop C 1 Fouled strainer C 1 Clean strainer element or replace C 2 Valve too small for flows enco...

Страница 8: ...55 4122 0138 Watts com Part Number Add On Retrofit Kit Description Add on and Retrofit Sensor Connection Kits for BMS 88003050 BMS Sensor Connection Kit for LF909 FS Sizes 2 to 10 Includes a sensor activation module with cable power adapter and ground wire Use this kit to activate the integrated flood sensor and enable flood detection capabilities for the relief valve to work with a third party BM...

Страница 9: ...DVERTENCIA La instalación y el mantenimiento de los ensambles de reflujo deben ser realizados por un técnico calificado y autorizado El no hacerlo puede resultar en un ensamble defectuoso Las reglamentos locales de construcción o plomería pueden requerir modificaciones a la información proporcionada Debe consultar los reglamentos locales de construcción y plomería antes de realizar la instalación ...

Страница 10: ...ientos de instalación deben cumplir con todos los códigos estatales y locales y cumplir con las disposiciones de seguridad requeridas Debe mantenerse un espacio de aire debajo del puerto de alivio para evitar inundaciones e inmersiones del ensamble lo que puede provocar una conexión cruzada La Figura 1 muestra los componentes principales de la serie 909 LF909 FS Las tuberías deben lavarse a fondo ...

Страница 11: ...es necesario para evitar golpes de ariete o daños por golpes La instalación de un accesorio de espacio de aire Watts con la línea de drenaje terminando sobre un desagüe en el piso maneja cualquier descarga normal o escupida molesta a través de la válvula de alivio Sin embargo es posible que sea necesario diseñar el tamaño del desagüe del suelo para evitar daños por agua causados por una condición ...

Страница 12: ...e la válvula alta A y abra la válvula de prueba N º 2 Cierre la válvula de prueba N º 4 Desconecte la manguera de aireación en la válvula de prueba N º 4 Abra las válvulas B y C purgando al ambiente A continuación el cierre de la válvula B restaura el sistema a una condición estática normal Observe el manómetro diferencial de presión Si hay una disminución en el valor indicado la válvula de retenc...

Страница 13: ... Un alambre se extrae en el sentido de las agujas del reloj el otro en sentido antihorario 4 Levante el anillo del asiento hacia arriba para retirarlo 5 Para reemplazar el disco en tamaños de 21 2 in a 4 in 6 35 cm a 10 16 cm retire la tuerca de retención Para tamaños de 6 in a 10 in 15 24 cm a 25 4 cm retire los tornillos Allen Siga este procedimiento en orden inverso para instalar el nuevo disco...

Страница 14: ...sario retirar este ensamble más que para la inspección Desenrosque el ensamble con una llave para tubos grandes PRECAUCIÓN El resorte está retenido en el tapón inferior y está muy cargado NO se debe intentar en el campo desmontar el tapón inferior y el ensamble del pistón del resorte Para el reemplazo debe obtenerse de fábrica un ensamble del tapón inferior completo Para obtener más información pó...

Страница 15: ...sistema de tuberías y o aísle eléctricamente el dispositivo con una tubería de plástico inmediatamente aguas arriba y aguas abajo del dispositivo B 6 Válvula reensamblada incorrectamente B 6 Si la válvula se desmonta durante la instalación tenga cuidado al instalar los resortes de retención en su ubicación correcta C La válvula muestra una caída de presión alta C 1 Filtro sucio C 1 Limpie el eleme...

Страница 16: ... del sensor con cable adaptador de corriente y cable de tierra Use este kit para activar el sensor de inundación integrado y habilitar las capacidades de detección de inundaciones para que la válvula de alivio funcione con una caja de control BMS de terceros no incluida 88003051 Kit de conexión de retroadaptación del sensor BMS para tamaños LF909 de 2 in a 3 in 6 35 cm a 7 62 cm Incluye un sensor ...

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