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Attach the Activation Module Cable to the BMS Controller

The 4-conductor activation module cable should be attached to the BMS controller to transmit a nor-

mally open contact signal and provide power to the activation module. The contact signal closes 

when a discharge is detected.

To connect the module cable to  

the controller

1.  Use the wire stripper to cut away enough insulation to 

expose 1 to 2 inches of the conductor wires.

2.  Insert the white and green wires into the input terminal.

NOTICE

Either the BMS power source (ranging from 12V to 24V) 

or the 24V DC power adapter provided can be used. With 

each power source, an earth ground connection is required. 
If using the optional power adapter, skip to the next set of 

instructions. Be sure to use the ground wire provided if there 

is no other earth ground on the BMS controller.

3.  Insert the red wire in the power terminal. (A power source 

ranging from 12V to 24V is required.)

4.  Insert the black wire in the ground terminal.

The earth ground must be connected to the BMS controller 

before the flood sensor is put in operation.

To use the optional 24V DC power adapter

Distinguish the positive wire from the negative one. The 

positive wire has white stripes and must be inserted into the 

power terminal; the negative wire, into the ground terminal.

1.  Connect the positive power adapter wire (black with white 

stripe) to the red wire of the activation module cable and 

insert the wires into the power terminal.

2.  Connect the negative power adapter wire (black with no 

stripe) to both the black wire of the activation module 

cable and the ground wire (if needed) then insert the 

wires into the ground terminal.

3.  Plug the power adapter into a 120VAC, 60Hz,  

GFI-protected electrical outlet.

4.  The flood sensor LED is steady green when the unit  

is ready.

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 inci-
dental 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.

USA:

  T: (978) 689-6066 • Watts.com

Canada: 

 T: (888) 208-8927 • Watts.ca

Latin America: 

 T: (52) 55-4122-0138 • Watts.com

IS-RFK-FS-919-BMS   2317 

1922938 

© 2023 Watts

Summary of Contents for LF919

Page 1: ...t technology does not replace the need to comply with all required instructions codes and regulations related to the installation operation and maintenance of the backflow preventer to which it is att...

Page 2: ...8009423 A Activation module with 8 conductor cable and ground wire B 24V DC power adapter C Small sensor for valve sizes to 1 large sensor valve sizes 1 to 2 NOTICE When installing an air gap attach t...

Page 3: ...ischarge are suitable for the assembly series However the DIP switches can customized for a different wet threshold and time delay Scan the QR code for more information 1 Position the flood sensor on...

Page 4: ...ge 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: ...e SentryPlus Alert ne remplace pas la n cessit de se conformer toutes les instructions tous les codes et tous les r glements requis li s l installation au fonctionnement et l entretien de l appareil a...

Page 6: ...e la terre B Adaptateur d alimentation 24 V CC C Petit capteur pour les tailles de vanne de pouce 1 27 cm 1 pouce 2 5 cm grand capteur tailles de vanne de 1 pouce 3 2 cm 2 pouces 5 1 cm AVIS Lors d un...

Page 7: ...semblage Cependant les commutateurs DIP peuvent tre personnalis s pour r gler un seuil d humidit et une temporisation diff rents Balayez le code QR pour plus d informations 1 Placez le capteur d inond...

Page 8: ...s d utilisation pour une p riode d un an compter de la date d exp dition d origine Si une telle d faillance devait se produire au cours de la p riode sous garantie la Soci t pourra sa discr tion rempl...

Page 9: ...r con todas las instrucciones la normas y los reglamentos necesarios relacionados con la insta laci n la operaci n y el mantenimiento del dispositivo de prevenci n de contraflujo al que est conectado...

Page 10: ...ies 2 44 m y cable de tierra B Adaptador de alimentaci n de 24 V C Sensor peque o para tama os de v lvula de in a 1 in 1 2 cm a 2 5 cm sensor grande tama os de v lvula de 1 in a 2 in 3 17 cm a 5 08 cm...

Page 11: ...la serie de montaje Sin embargo los interruptores DIP pueden personalizarse para un umbral h medo y un retardo de tiempo diferentes Escanee el c digo QR para obtener m s informaci n 1 Coloque el sens...

Page 12: ...tos en el material y mano de obra cuando se usen de forma normal durante un periodo de un a o a partir de la fecha de env o original En caso de que tales defectos se presenten dentro del per odo de ga...

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