Watts N45B Series Manuale utente
Series
N45B
Installation
Instructions
•
Flush
dirt
and
scale
from
supply
pipe.
•
Install
regulator
vertically
or
horizontally
(upright
or
in
verted),
but
the
regulator
must
be
installed
with
the
ar-
row
in
the
direction
of
fl
ow.
•
Regulator
is
preset
at
50
psi.
To
adjust,
loosen
locknut
and
turn
adjusting
screw
clockwise
to
increase,
counterclockwise
to
decrease.
•
This
regulator
has
a,J
uilt-in
thermal
expansion
bypass.
If
the
inlet
pressure
is
higher
than
the
discharge
setting
of
the
water
heater
(typically
150
psi)
or
if
there
is
a
check
valve
or
backflow
preventer
installed
on
the
line,
you
must
make
provisions
for
pressure
relief
protection
to
protect
your
plumbing
system
and
its
components.
We
suggest
the
use
of
a
model
DET
expansion
tank,
the
Watts
Governor
80
ball
cock
and
thermal
expansion
relief
valve,
or
a
530C
cali-
brated
pressure
relief
valve.
(Send
for
folder
F
-RV,
S
-Therm
Expansion,
or
consult
your
plumbing
professional).
CALIFORNIA
PROPOSITION
65
WARNING
WARNING:
This
product
contains
chemicals
known
to
the
State
of
California
to
cause
cancer
and
birth
defects
or
other
reproductive
harm.
(Installer:
California
law
requires
that
this
warning
be
given
to
the
consumer.)
Fig.
No.
1
Location
of
Installation
w
Su
Pressure
Regulator
Y
C.)
Cl)
No.
7
IS-N45B
No.
7
Backflow
Preventer
To
Fixtures
LIMITED
WARRANTY:
Watts
Regulator
company
warrants
each
product
against
defects
in
mate-
rial
and
workmanship
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.
This
shall
constitute
the
exclusive
remedy
for
breach
of
warranty,
and
the
Company
shall
not
be
responsible
for
any
incidental
or
consequential
damages,
includ-
ing
without
limitation,
damages
or
other
costs
resulting
from
labor
charges,
delays,
vandalism,
negligence,
fouling
caused
by
foreign
material,
damage
from
adverse
water
conditions,
chemi-
cals,
or
any
other
circumstances
over
which
the
Company
has
no
control.
This
warranty
shall
be
invalidated
by
any
abuse,
misuse,
misapplication
or
improper
installation
of
the
product.
THE
COMPANY
MAKES
NO
OTHER
WARRANTIE
EXPRESS
OR
IMPLIED
EXCEPT
AS
PROVIDED
IN
THIS
LIMITED
WARRANTY.
Maintenance
Instructions
•
To
clean
strainer
or
replace
seat/stem
module
shut
off
supply,
loosen
locknut
(51)
and
back
off
adjusting
screw
(53).
•
Remove
springrage
~*
spring
t32),
washer
(61)
and
slip
ring
(73).
Grasp
stem
nut
(51-1)
with
fingers
or
pliers
and
lift
mod-
ule
from
body.
Remove
strainer
screen
and
clean.
•
To
disassemble
module,
use
wrench
to
loosen
stem
nut
(51-1)
and
remove
lock
washer
(46)
and
diaphragm
plate
(60).
In-
vert
module
and
remove
disc
holder
(47)
using
a
screw
driver.
Slowly
turn
stem
(27)
upright
and
remove
bypass
ball
(106)
and
poly
spacer
(7).
Clean
ball,
poly
spacer,
disc
and
seat.
Lubricate
stem
ring
(1O1-3)
with
Dow
-111
or
equivalent
grease.
•
When
replacing
disc
holder
(47)
apply
a
drop
of
low
strength
thread
lock.
Do
not
over
torque.
•
Be
certain
to
reinstall
bypass
ball
and
poly
spacer.
Valve
will
not
operate
if
ball
is
missing.
•
Ensure
slip
ring
is
positioned
with
the
curved
edge
up
to
avoid
cutting
the
diaphragm.
A
LEADEN
/N
VALVE
TECHNOLOGY
ti
~WATfS
®
REGULATOR
-Since
1874
Watlslndustries,Inc.—
Water
Products
Division
•
Safety
dl
Control
Valves
USA:
815
Chestnuf
St.,
No.
Andover,
MA
01845-6098;
www.wattsreg.com
Canada:
5435
North
Service
Rd.,
Burlington,
ONT.
L7L
567;
www.wattscda.com
x]9001
1
c~rrtrren
IS-N45B
0021
EDP#
1911294
(53)
-
Adjusting
Screw
(51)
-Lock
Nut
(78)
-
Name
Plate
(3)
-
Cage
(61)
-
Spring
Washer
(52)
-
Spring
(27)
-
Stem
(51-1)
-
Nut
(46)
-
Lock
Washer
(60)
-
Diaphragm
Plate
(20)
-
Diaphragm
§
(73)
-
Slip
Ring
(101-1)-
0
-Ring
§
Y
(103)
-0-Rings
(101-2)-
0
-Ring
§
Y
(106)
Bypass
Ball
§
7)
-
Poly
Spacer
77
-
Strainer
16)
-
Seat
Y
(101-3)-
0
-Ring
§Y
(60-1)
-
Washer
(37)
-
Disc
§
(47)
-
Disc
Holder
Ordering
Size
Code
No.
Kit
No.
In.
mm
Contents
0006960
N45B-RK
1
/
2
",
3
/
4
",
1"
15,
20,
25
Rubber
Parts
§
0006959
N45B-SRK
1
/
2
",
3
/
4
",
1"
15,
20,
25
Seat
O-ringsv
When
Ordering,
Specify:
1.
Ordering
Code
Number
3.
Type
Number
2.
Size
of
Valve
4.
Model
shown
on
Nameplate
©
Watts
Regulator
Co.,
1997
Printed
in
U.S.A.
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