Watts LFN45B-L User Manual

English instructions, Troubleshooting, Installation instructions

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ENGLISH INSTRUCTIONS

WATTS

PRESSURE GAUGE

(2 PLACES)

WATTS

SHUTOFF VALVE

(2 PLACES)

WATTS

BACKFLOW

PREVENTER

WATTS

PRESSURE

REGULATOR

(2 PLACES)

WATER
METER

SUPPLY

TO FIXTURES

TO SILLCOCK

WATTS

PRESSURE GAUGE

(2 PLACES)

WATTS

SHUTOFF VALVE

(2 PLACES)

WATTS

BACKFLOW

PREVENTER

WATTS

PRESSURE

REGULATOR

WATER
METER

SUPPLY

TO FIXTURES

TO SILLCOCK

Installation Instructions

1. The valve should be installed by a licensed contractor in accordance with

local codes and ordinances.

2. This valve should be installed where it is accessible with sufficient clearance

for cleaning, service, or adjustment.

3. Before installing the valve, be sure that the pipe ends are reamed and

threads are cut to size.

4. Flush the lines to remove all loose scale, dirt and other foreign matter that

can damage or clog the valve.

5. Install the regulator with the arrow on the body pointing in the direction of the flow.
6. Regulator may be installed vertically or horizontally (upright or inverted).
7. Start Up — Open cold water supply then hot water supply. Inspect for leaks.

The valve should be inspected annually to assure maximum life and performance.

LFN45B valves are suitable for accessible outdoor or pit installations.

Maintenance Instructions

Depressurize valve before servicing.
• To clean strainer or replace seat/stem module shut off supply, loosen Locknut

and Lock Seal and back off Adjusting Screw.

• Remove Spring Cage, Spring, Washer and Slip Ring. Grasp Stem Nut with

fingers or pliers and lift module from body.

• Replace module and reassemble valve.
• Readjust pressure setting.

Adjustment

Regulator is factory preset to 50psi (345 kPa). To adjust pressure setting, loosen

the locknut and turn the adjusting bolt clockwise to increase pressure, counter-

clockwise to decrease pressure.

Typical Installation

Series Installation

Series installations are recommended where very high supply

pressure must be reduced to a very low downstream pressure.

Reducing the pressure in stages eliminates whistling and noise.

Parallel Installation

Parallel installations are recommended where high flow or low flow

demand is intermittent/occasional. They are also used for installa-

tions where service cannot be interrupted.

IS-N45B 1

1

4

”-2”

1323

EDP# 1915349

© 2013

Watts

USA:

Tel. (978)

688-1811 •

Fax: (978)

794-1848 •

www.watts.com

Canada: Tel.

(905) 332-4090

• Fax:

(905) 332-7068

• www.watts.ca

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

ship-

ment. 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.

IS-N45B 1

1

4

”-2”

1323

EDP# 1915349

© 2013

Watts

USA:

Tel. (978)

688-1811 •

Fax: (978)

794-1848 •

www.watts.com

Canada: Tel.

(905) 332-4090

• Fax:

(905) 332-7068

• www.watts.ca

Garantía limitada:

Watts Regulator

Co. (en adelante, “la

Compañía”) garantiza, por un período de

un año a

partir de la fecha de embarque original, que sus productos están libres de defectos en materiales y mano de obra

bajo condiciones de uso normal. En caso de que se encuentren tales defectos dentro del período de garantía, la

Compañía reemplazará o reacondicionará, a su elección, el producto sin costo alguno.

LA GARANTÍA AQUÍ ESTIPULADA SE OTORGA EN FORMA EXPRESA Y ES LA ÚNICA GARANTÍA

OTORGADA POR LA COMPAÑÍA EN RELACIÓN CON EL PRODUCTO. LA COMPAÑÍA NO OTORGA NINGUNA

OTRA GARANTÍA, YA SEA EXPRESA O IMPLÍCITA. LA COMPAÑÍA POR LA PRESENTE RENUNCIA

ESPECÍFICAMENTE A TODAS LAS DEMÁS GARANTÍAS, EXPRESAS O IMPLÍCITAS, INCLUYENDO SIN

LIMITACIÓN, LAS GARANTÍAS IMPLÍCITAS DE APTITUD PARA LA COMERCIALIZACIÓN E IDONEIDAD PARA

UN PROPÓSITO EN PARTICULAR.

La solución descrita en el primer párrafo de esta garantía constituirá la única y exclusiva solución por

incumplimiento de garantía, y la Compañía no se hará responsable por daños accidentales, especiales o

indirectos, incluyendo sin limitación, la pérdida de ganancias o el costo de reparación o reemplazo de otra

propiedad que resulte dañada por el mal funcionamiento de este producto, otros costos resultantes por mano

de obra, retardos, vandalismo, negligencia, obstrucciones ocasionadas por materiales extraños, daños debidos

a condiciones adversas del agua, químicos o cualquier otra circunstancia sobre la cual la Compañía no tenga

control. Esta garantía no tendrá validez en cualquier caso de abuso, uso indebido, aplicación incorrecta,

instalación inadecuada, o mantenimiento adecuado o alteración del producto.

Algunos Estados no permiten limitaciones en la duración de una garantía implícita y algunos Estados no permiten

la exclusión

o limitación

de daños

accidentales o

indirectos. Por

lo tanto,

es posible

que las limitaciones

anteriores no sean aplicables en su caso. Esta garantía limitada le da derechos legales específicos; usted

podría tener también otros derechos que varían según el Estado. Usted debe consultar las leyes estatales

aplicables para

determinar sus

derechos.

EN LA

MEDIDA EN

QUE SEA

CONGRUENTE CON

LAS LEYES

ESTATALES APLICABLES, CUALQUIER GARANTÍA IMPLÍCITA QUE NO SEA RECHAZADA, INCLUYENDO LAS

GARANTÍAS IMPLÍCITAS DE APTITUD PARA LA COMERCIALIZACIÓN E IDONEIDAD PARA UN PROPÓSITO EN

PARTICULAR, SE LIMITA EN SU DURACIÓN A UN AÑO A PARTIR DE LA FECHA DEL EMBARQUE ORIGINAL.

USA:

Tel. (978)

688-1811 •

Fax: (978)

794-1848 •

www.watts.com

Canada: Tel.

(905) 332-4090

• Fax:

(905) 332-7068

• www.watts.ca

Garantie limitée : Watts Regulator Co. (la « Société ») garantit que chacun de ses produits est exempt de

vice de matériau et de fabrication dans des conditions normales d’utilisation pour une période d’un an à

compter de la date d’expédition d’origine. Dans l’éventualité où de tels vices se manifesteraient pendant

la période de garantie, la Société, à sa discrétion, remplacera ou reconditionnera le produit sans frais.

LA PRÉSENTE

GARANTIE EST

EXPRESSE ET

REPRÉSENTE LA

SEULE GARANTIE

OFFERTE PAR

LA SOCIÉTÉ POUR CE PRODUIT. LA SOCIÉTÉ N’OFFRE AUCUNE AUTRE GARANTIE, EXPRESSE OU

TACITE. PAR LA PRÉSENTE, LA SOCIÉTÉ REJETTE SPÉCIFIQUEMENT TOUTE AUTRE GARANTIE,

EXPRESSE OU TACITE, NOTAMMENT TOUTE GARANTIE TACITE DE QUALITÉ MARCHANDE OU

D’ADAPTATION À UN BUT PARTICULIER.

Le recours

décrit dans

le premier

paragraphe de

cette garantie

constitue le

seul recours

à toute

violation

de la présente garantie. La Société ne saurait être tenue responsable de tout dommage accessoire,

spécial ou indirect, y compris, de façon non limitative : la perte de profits ou le coût afférent à la

réparation ou au remplacement d’autres biens qui seraient endommagés par suite du fonctionnement

incorrect dudit produit ; d’autres coûts résultant de frais de main-d’œuvre, de retards, de vandalisme,

de négligence, d’une obstruction causée par des matériaux étrangers, de dommages causés par une

eau impropre, des produits chimiques ou par tout autre événement échappant au contrôle de la Société.

La présente garantie est déclarée nulle et non avenue en cas d’usage abusif ou incorrect, d’application,

d’installation ou d’entretien incorrects ou de modification du produit.

Certains États n’autorisent pas les limitations de durée d’une garantie tacite ou l’exclusion ou la

limitation des dommages accessoires ou indirects. Les limitations susmentionnées peuvent donc ne pas

s’appliquer à vous. Cette garantie

limitée vous donne des

droits spécifiques et il se peut que vous

ayez

aussi d’autres

droits qui

varient d’un

État à

l’autre. Veuillez

vous référer

aux lois

applicables de

l’État pour

déterminer vos droits en

la matière.

DANS LA MESURE PERMISE PAR

LA LOI APPLICABLE DE L’ÉTAT,

TOUTES LES GARANTIES TACITES NE POUVANT PAS ÊTRE REJETÉES, Y COMPRIS LES GARANTIES

TACITES DE QUALITÉ MARCHANDE ET D’ADAPTATION À UN BUT PARTICULIER, SONT LIMITÉES

QUANT À LEUR DURÉE À UN AN À COMPTER DE LA DATE D’EXPÉDITION D’ORIGINE.

WATTS

PRESSURE GAUGE

(2 PLACES)

WATTS

SHUTOFF VALVE

(2 PLACES)

WATTS

BACKFLOW

PREVENTER

WATTS

PRESSURE

REGULATOR

(2 PLACES)

WATER
METER

SUPPLY

TO FIXTURES

TO SILLCOCK

IS-N45B 1

1

4

”-2”

1323

EDP# 1915349

© 2013

Watts

S eries

LFN45B

S eries

LFN45B

S éries

LFN45B

Water Pressure Reducing Valve

Válvula reductora de la

presión del agua

Régulateur de pression d'eau

1

1

4

", 1

1

2

", 2" (32, 40, 50mm)

Installation Instructions

Instrucciones de instalación

Instructions

d’installation

IS-N45B 1

1

4

”-2”

N45BDU

Adjusting

Screw

Lock Nut

Lock Seal

Spring

Washer

Spring

Spring

Cage

Slip

Ring

Seat/Stem

Module

Stem

Nut

Strainer

Repair Kit

KIT NO.

SIZE

ORDERING CODE

KIT INCLUDES

in.

mm

1

1

4

– 2

1

1

4

, 1

1

2

, 2 32, 40, 50

0006988

SEAT/STEm

N45B/EZ-N55B-RK/

moDULE

LFN45B

Troubleshooting

High System Pressure

If the downstream system pressure is higher than the set pressure under no

flow conditions, the cause could be thermal expansion, pressure creep or dirt/

debris on the seat.
Thermal expansion occurs whenever water is heated in a closed system. The

system is closed when supply pressure exceeds 150psi (10.3 bar), or a check

valve or backflow preventer is installed in the supply piping.

You must make provisions for pressure relief protection of your

plumbing system and components. The use of a relief valve

such as the Watts 530C, BRV, Governor 80, or 3L or potable

water expansion tank such as the Watts DET, PLT, ILH or DETA

may be required.

To determine if this is the result of thermal expansion, try

briefly opening the cold water tap. If the increased pres-

sure is caused by thermal expansion, the pressure will

immediately be relieved and the system will return to the

set pressure. Watts offers a pressure test gauge, model

276H300 to assist you in determining if you have high

water pressure. The 276H300 when attached to a hose

bibb registers the highest pressure reading over the

period of time it is left on the system.

Watts 276H300

WARNING:

This product contains chemicals known to the

State of California to cause cancer and birth defects or other

reproductive harm.

For more information: www.watts.com/prop65

ADVERTENCIA:

Este producto contiene sustancias químicas

que en el Estado de California se conocen como causantes

de cáncer y malformaciones u otros daños reproductivos.

Para más información: www

.watts.com/prop65

AVER

TISSEMENT: Ce produit contient des produits chi

-

miques reconnus par l’État de Californie comme étant can-

cérigènes et pouvant provoquer des anomalies congénitales

ou affecter la capacité de reproduction.

Pour plus d'informations: www

.watts.com/prop65

NOTICE

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

.

NOTICE

SEAT/STEM MODULE

Bypass Feature

This regulator has a built in thermal expansion bypass feature. This feature prevents

downstream pressure from rising to more than 10psi (69 kpa) above the supply pressure.

The bypass feature will not prevent the pressure relief valve from opening on the hot

water supply system with pressure above 150psi (10.3 bar).

NOTICE

WARNING

!

CAUTION

!

Any time a reducing valve is adjusted, the use of a pressure gauge is recommended

to verify correct pressure setting.

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