FOREWORD
This
design
complies
with
ANS
Z21.10.3
as
a low
in
the
diagrams
as
these
are
necessary
for
check-
pressure
boiler.
Ing
the
operation
of the
boiler.
0
Detailed
installation
diagrams
are
in
this
manual.
MAKE
SURE
the
gas
on
which
the
boiler
will
These
diagrams
will
serve
to
provide
the
installer
operate
is
the
same
as
that
specified
on the
boiler
i
with
a reference
for
the
materials
and
method
of
Model
and
Rating
Plate.
piping
suggested.
It
is
blghly
essential
that
all
water
and
gas
piping,
an)
the
electrical
wiring,
Where
these
instructions
are
at
variance
with
be
installed
and
connected
as
shown
in
the
local
codes,
comply
with
the
local
code.
diagrams.
it
is
recommended
that
the
instructions
as
outlined
, Check
the
diagrams
thoroughly
before
starting
in
the
latest
publication
of
ANSI
booklet
Z223.1-
installation
to
avoid
possible
errors
and
to
mini-
1974
"NATIONAL
FUEL
GAS
CODE''
also
be
mize
time
and
materials
cost.
followed.
This
Manual
can
be
purchased
from
the
American
Gas
Association
Laboratories,
8501
East
Particular
attention
should
be
given
to
the.instal-
Pleasant
Valley
Road,
Cleveland,
Ohio
44131,
lation
of
thermometers
at
the
locations
indicated
INSTALLATION
INSTRUCTIONS
LOCATION
When
installing
the
boiley,
consideration
must
adequate
air
for
combustion,
ventilation
and
draft
be
given
to
proper
location.
Location
selected
hood
dilution.
should
be
as
close
to
the
stack
or
chimney
as
practicable,
and
as
centralized
with
the
piping
If the
unconfined
space
Is within
a building
of
un-
.system
system
as
possible.
usually
tight
construction,
air
for
combustion,
The
boiler
should
also
be
located
near
a floor
ventilation
and
draft
hood
dilution
shall
be
ob-
drain
to
dispose
of
water
and
in
an
area
where
it
tained
from
outdoors
or
from
spaces
freely
com-
will
not
be subject
to freezing
temperatures.
'
municating
with
the
outdoors.
Permanent
open-
ing(s)
having
a total
free
area
of
not
less
than
one
AIR
REQUIREMENTS
square
inch
per
5,000
Btuh
total
input
shall
be
An
ample
supply
of air
must
be provided
for
proper
Provided.
combustion.
An
insufficient
supply
of
air
will
.
result
in
a yellow,
luminous
burner
flame,
causing
Confmed
Space
carboning
or sooting
of
the
finned
heat
exchanger
and
burner,
and
possible
darqage
to
the
boiler.
ALL
AIR
FROM
INSIDE
BUILDING
Chemical
Vapors
The
confined
space
shall
be
provided
with
two
I
permanent
openings,
one
near
the
top
of
the
en-
Boiler
corrosion
and
component
failure
can
be
closure
and
one
near
the
bottom.
Each
opening
caused
by
the
heating
and
breakdown
of
air
shall
have
a free
area
of
not
less
than
one
square
borne
chemical
vapors.
Spray
can
propellants,
Inch
per
1,000
Stub
of
the
total
input
rating
of
all
cleaning
solvents,
refrigerator
and
air
condition-
appliances
in
the
enclosure,
freely
communicating
ing
refrigerants,
swimming
pool
chemicals,
cal-
with
interior
areas
having
in
turn
adequate
infil-
cium
and
sodium
chloride,
waxes,
and
process
tration
from
the
outside.
chemicals
are
typical
compounds
which
are
poten-
tially
corrosive.
These
materials
are
corrosive
ALL
AIR
FROM
OUTDOORS
at
very
low
concentration
levels
with
little
or
no
odor
to
reveal
their
presence.'
The
confined
space
shall
be
provided
with
two
.
permanent
openings,
one
In
or
near
the
top
of
the
Products
of this
sort
should
rtot
be stored
near
the
enclosure
and
one
in
or
near
the
bottom.
When
boiler.
Also,
air
which
is
brought
in
contact
with
directly
communicating
with
outdoors
or
by
means
the
boiler
should
not
necessary,
contain
any
of
these
chemi-
of
vertical
ducts,
each
opening
shall
have
a free
cals.
If
necessary,·
uncontaminated
air
should
be
area
of
not
less
than
one
square
inch
per
4,000
obtained
from
remote
or outside
sources.
Btuh
of
total
input
rating
of
all'appliances
in
the
I
enclosure.
If
horizontal
ducts
are
used
each
Unconfined
Space
.
opening
shall
have
a free
area
of
not
less
than
In
buildings
of
conventional
frame,
brick
or
stone
one
square
inch
per
2,000
Btuh
of
total
input
of
construction,
unconfined
spaces
normally
provide
all
aPPliances
in the
enclosure.
4
AOS
120
Roenbeck
FILED: NEW YORK COUNTY CLERK 02/20/2018 10:20 AM
INDEX NO. 190311/2015
NYSCEF DOC. NO. 337
RECEIVED NYSCEF: 02/20/2018
