ENGLISH INSTRUCTIONS
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-EZ-M1 – This valve is not suitable for outdoor or PIT installations.
Maintenance Instructions
Depressurize valve before servicing.
• To clean strainer or replace seat/stem module shut off supply, note indicator
setting, loosen knob retaining screw and back off knob.
• 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 (345kPa). To adjust pressure setting, loosen
the knob retaining screw and turn the adjusting knob clockwise to increase
pressure, counter clockwise to decrease pressure.
S eries
LFN45B-EZ-M1
S eries
LFN45B-EZ-M1
S eries
LFN45B-EZ-M1
Water Pressure Reducing Valve
Válvula reductora de la
presión del agua
Régulateur de pression d'eau
3
⁄
4
" - 1" (20-25mm)
Installation Instructions
Instrucciones de
instalación
Instructions d’installation
IS-N45B-EZ-M1
X45BDU-EZ-M1
IS-N45B-EZ-M1
1322
EDP# 1915389
© 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-EZ-M1
1322
EDP# 1915389
© 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.
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 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
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
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.
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-EZ-M1
1322
EDP# 1915389
© 2013
Watts
Bypass Feature
This regulator has a built-in thermal expansion bypass feature. This feature pre-
vents downstream pressure from rising to more than 10psi (69kPa) above the sup-
ply 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).
Knob Retaining
Screw
Adjusting Knob
Indicator/
Spring Washer
Spring
Spring Cage
Stem Nut
Seat/Stem
Module
Slip Ring
Strainer
Stem Nut
Strainer
Repair Kits
KIT NO.
SIZE
ORDERING
KIT
in.
mm
CODE INCLUDES
1
⁄
2
– 1
1
⁄
2
,
3
⁄
4
, 1 15, 20, 25
0006960
Seat/Stem
N45B/N45B-EZ-RK
Module
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
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.
!
For valves with CPVC or PEX end connections do not exceed the
tubing manufacturers pressure and temperature ratings. Refer to
the tubing manufacturers product specifications for that informa-
tion.
WARNING
!
CAUTION
!
WARNING
!
Any time a reducing valve is adjusted, the use of a pressure gauge is recommended
to verify correct pressure setting.
Seat/Stem Module
NOTICE
