I
I
.
8.
Water
Supply
Line
and
Operatinn
Preasures.
If
the
boiler
la
connected
to
heating
colla
These
boilers
can
be
used
ONLY
In
a forced
exposed
to
refrigerated
air,
the
boiler
piping
hot
water
heating
system.
The
water
supply
'
system
must
be
equipped
with
flow
valves
or
line
must
Include
a pressure
reducing
valve
other
automatic
means
to
prevent
gravity
to
establish
propel
system
operating
prea-
circulation
through
the
boiler
during
the
sure.
Modern,
fast.
heating
hydronic
boilers
cooling
cycle.
function
best
with
a cold
fill
pressure
of
12
7.
Circulating
Pump.
Constant
circulating
pump
to
18
pal.
If
system
water
volume
and
op-
operation
of
the
boiler
voids
the
warranty.
temperature
can
be expected
to create
Constant
water
flow
through
the
unit
will
an
expanded
pressure
up
to
or
more
than
80
'wash'
away
the
copper's
natural
protective
pal,
these
boilers
can
be
ordered
with
a 65
coating.
Thla
la
called
velocity
erosion.
pressure
relief.
This
will
be
a substitute
This
erosion
la
not
as
great
a problem
when
for
the
30
pal
valve
normally
shipped
with
Intermittent
circulating
operation
Is
used
per
the
boiler.
Relief
valve
relieving
pressure
the
recommended
Installation
procedure.
Con-
should
not
exceed
the
operating
pressure
of
ajant
circulating
of
water
through
the
build-
any
system
component.
The
A.
.O.
Smith
ing's
system
main
is
permissible
as
Iong
as
boilers
are
rated
for
180
pal
maximum
work-
the
water
does
not
constantly
flow
through
ing
pressure.
the
boiler.
Systems
with
large
water
volume
and
sya-
Although
each
circulator
la
oiled
and
op-
tems
requiring
predsure
purging
abould
be
crated
by
the
manufacturer,
IT
MUST
BE
Installed
with
by
ass
piping
around
the
OILED
AGAIN
BEFORE
OPEFIATED.
Oil
pressure
reducing
valve.
the
three
oil
cups
(2
on
the
motor,
1 on
the
pump)
as
instructed
on
the
oil
tube
supplied
4.
Vent
Valves.
It
la.recommended
that
auto-
with
the
unit,
fig.
S.
matic,
loose
key
or
acrowdriver
type
vent
valves
be
Installed
at
each
convector
6
QL
• radiator
and
other
high
points
In
the
dis-
tribution
system.
If
automatic
vents
are
used,
pressure
at
11 times
must
be
high
enough
to
prevent
air
entry
through
these
devices.
.
-
-F
...
-.
,
. _ I
5.
Manlfold
Headers.
·For
multi-loop
systems
using
one
circulator;
manifold
headers
must
be
Installed
in
the
pupply
and
return
lines.
-
For
2
or
8 circuits
using
S/4"
O.D.
copper
and
2, 3 or 4 circuits
using
1/2"
O.D.
.
tubing,the
manifold
should
be
at
least
1
1/2"
1/2
In
diameter.
The
circuits
should
_be
be
spaced
• -
on
the
header
at
a
minimum
of
three
Inches
center
to
center.
Ins.tall
a balancing
cock
In
-- -
-
•
-
each
return
line.
6.
Cooling
Piping.
.
Flow
control
valves,
manual
or
motorized,
must
be
Installed
to
control
PieuRit
s
othino
CIRCULAToR
water
flow
through
deplred
unit,
fig.
2.
Thereafter,
during
the
heating
season,
lub-
Water
temperature
In the
heating
system
must
ricate
the
three
oil
cups
at
least
once
every
be
reduced
to
less
than
100
degrees
F before
4
months.
Combination
heating-cooling
sys-
cooling
system
la
started,
or
damage
to
the
toma
should
be
lubricated
every
four
months
chiller
unit
may
occur.
year
around.
RETUM
suPPLY
BOILER
CHILLER
-
COOLING
CIRCULATOR
leURE 2
RECOMMENDEDPIP1NG
DIAGRAM
-
6
AOS122
Roanbecir.
FILED: NEW YORK COUNTY CLERK 02/20/2018 10:20 AM
INDEX NO. 190311/2015
NYSCEF DOC. NO. 337
RECEIVED NYSCEF: 02/20/2018
